Observation of a Resonant Structure near the Ds+ Ds- Threshold in the B+ → Ds+ Ds- K+ Decay

(LHCb Collaboration)

doi:10.1103/PhysRevLett.131.071901

Observation of a Resonant Structure near the Ds+ Ds- Threshold in the B+ → Ds+ Ds- K+ Decay

(LHCb Collaboration)

(Astro)-Particles Physics

Research output: Contribution to Journal › Article › Academic › peer-review

Abstract

An amplitude analysis of the B+→Ds+Ds-K+ decay is carried out to study for the first time its intermediate resonant contributions, using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A near-threshold peaking structure, referred to as X(3960), is observed in the Ds+Ds- invariant-mass spectrum with significance greater than 12 standard deviations. The mass, width, and the quantum numbers of the structure are measured to be 3956±5±10 MeV, 43±13±8 MeV, and JPC=0++, respectively, where the first uncertainties are statistical and the second systematic. The properties of the new structure are consistent with recent theoretical predictions for a state composed of cc¯ss¯ quarks. Evidence for an additional structure is found around 4140 MeV in the Ds+Ds- invariant mass, which might be caused either by a new resonance with the 0++ assignment or by a J/ψφ↔Ds+Ds- coupled-channel effect.

Original language	English
Article number	071901
Pages (from-to)	1-12
Number of pages	12
Journal	Physical review letters
Volume	131
Issue number	7
DOIs	https://doi.org/10.1103/PhysRevLett.131.071901
Publication status	Published - 18 Aug 2023

Bibliographical note

Funding Information:
We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at the LHCb institutes. We acknowledge support from CERN and from the national agencies: CAPES, CNPq, FAPERJ, and FINEP (Brazil); MOST and NSFC (China); CNRS/IN2P3 (France); BMBF, DFG, and MPG (Germany); INFN (Italy); NWO (Netherlands); MNiSW and NCN (Poland); MEN/IFA (Romania); MICINN (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (U.K.); DOE NP and NSF (U.S.). We acknowledge the computing resources that are provided by CERN, IN2P3 (France), KIT and DESY (Germany), INFN (Italy), SURF (Netherlands), PIC (Spain), GridPP (U.K.), CSCS (Switzerland), IFIN-HH (Romania), CBPF (Brazil), Polish WLCG (Poland), and NERSC (USA). We are indebted to the communities behind the multiple open-source software packages on which we depend. Individual groups or members have received support from ARC and ARDC (Australia); Minciencias (Colombia); AvH Foundation (Germany); EPLANET, Marie Skłodowska-Curie Actions and ERC (European Union); A*MIDEX, ANR, IPhU and Labex P2IO, and Région Auvergne-Rhône-Alpes (France); Key Research Program of Frontier Sciences of CAS, CAS PIFI, CAS CCEPP, Fundamental Research Funds for the Central Universities, and Sci. & Tech. Program of Guangzhou (China); GVA, XuntaGal, GENCAT, and Prog. Atracción Talento, CM (Spain); SRC (Sweden); the Leverhulme Trust, the Royal Society, and UKRI (U.K.).

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© 2023 CERN.

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10.1103/PhysRevLett.131.071901

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@article{838b64e685f046a0859063e6bf8d4f81,

title = "Observation of a Resonant Structure near the Ds+ Ds- Threshold in the B+ → Ds+ Ds- K+ Decay",

abstract = "An amplitude analysis of the B+→Ds+Ds-K+ decay is carried out to study for the first time its intermediate resonant contributions, using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A near-threshold peaking structure, referred to as X(3960), is observed in the Ds+Ds- invariant-mass spectrum with significance greater than 12 standard deviations. The mass, width, and the quantum numbers of the structure are measured to be 3956±5±10 MeV, 43±13±8 MeV, and JPC=0++, respectively, where the first uncertainties are statistical and the second systematic. The properties of the new structure are consistent with recent theoretical predictions for a state composed of cc¯ss¯ quarks. Evidence for an additional structure is found around 4140 MeV in the Ds+Ds- invariant mass, which might be caused either by a new resonance with the 0++ assignment or by a J/ψφ↔Ds+Ds- coupled-channel effect.",

author = "R. Aaij and Abdelmotteleb, {A. S.W.} and {Abellan Beteta}, C. and F. Abudin{\'e}n and T. Ackernley and B. Adeva and M. Adinolfi and H. Afsharnia and C. Agapopoulou and Aidala, {C. A.} and S. Aiola and Z. Ajaltouni and S. Akar and K. Akiba and J. Albrecht and F. Alessio and M. Alexander and {Alfonso Albero}, A. and Z. Aliouche and {Alvarez Cartelle}, P. and R. Amalric and S. Amato and Amey, {J. L.} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and M. Andreotti and D. Andreou and D. Ao and F. Archilli and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and M. Bachmayer and Back, {J. J.} and A. Bailly-Reyre and {Baladron Rodriguez}, P. and V. Balagura and W. Baldini and {Baptista De Souza Leite}, J. and M. Barbetti and Barlow, {R. J.} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and Basels, {J. M.} and G. Bassi and B. Batsukh and A. Battig and A. Bay and A. Beck and M. Becker and F. Bedeschi and Bediaga, {I. B.} and A. Beiter and V. Belavin and S. Belin and V. Bellee and K. Belous and I. Belov and I. Belyaev and G. Benane and G. Bencivenni and E. Ben-Haim and A. Berezhnoy and R. Bernet and {Bernet Andres}, S. and D. Berninghoff and Bernstein, {H. C.} and C. Bertella and A. Bertolin and C. Betancourt and F. Betti and Ia Bezshyiko and S. Bhasin and J. Bhom and L. Bian and Bieker, {M. S.} and Biesuz, {N. V.} and S. Bifani and P. Billoir and A. Biolchini and M. Birch and Bishop, {F. C.R.} and A. Bitadze and A. Bizzeti and Blago, {M. P.} and T. Blake and F. Blanc and S. Blusk and D. Bobulska and Boelhauve, {J. A.} and {Boente Garcia}, O. and T. Boettcher and A. Boldyrev and Bolognani, {C. S.} and R. Bolzonella and N. Bondar and F. Borgato and S. Borghi and M. Borsato and Borsuk, {J. T.} and Bouchiba, {S. A.} and Bowcock, {T. J.V.} and A. Boyer and C. Bozzi and Bradley, {M. J.} and S. Braun and {Brea Rodriguez}, A. and J. Brodzicka and {Brossa Gonzalo}, A. and J. Brown and D. Brundu and A. Buonaura and L. Buonincontri and Burke, {A. T.} and C. Burr and A. Bursche and A. Butkevich and Butter, {J. S.} and J. Buytaert and W. Byczynski and S. Cadeddu and H. Cai and R. Calabrese and L. Calefice and S. Cali and R. Calladine and M. Calvi and {Calvo Gomez}, M. and P. Campana and {Campora Perez}, {D. H.} and {Campoverde Quezada}, {A. F.} and S. Capelli and L. Capriotti and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and I. Carli and P. Carniti and L. Carus and {Casais Vidal}, A. and R. Caspary and G. Casse and M. Cattaneo and G. Cavallero and V. Cavallini and S. Celani and J. Cerasoli and D. Cervenkov and Chadwick, {A. J.} and Chapman, {M. G.} and M. Charles and Ph Charpentier and {Chavez Barajas}, {C. A.} and M. Chefdeville and C. Chen and S. Chen and A. Chernov and S. Chernyshenko and V. Chobanova and S. Cholak and M. Chrzaszcz and A. Chubykin and V. Chulikov and P. Ciambrone and Cicala, {M. F.} and {Cid Vidal}, X. and G. Ciezarek and G. Ciullo and Clarke, {P. E.L.} and M. Clemencic and Cliff, {H. V.} and J. Closier and Cobbledick, {J. L.} and V. Coco and Coelho, {J. A.B.} and J. Cogan and E. Cogneras and L. Cojocariu and P. Collins and T. Colombo and L. Congedo and A. Contu and N. Cooke and I. Corredoira and G. Corti and B. Couturier and Craik, {D. C.} and J. Crkovsk{\'a} and {Cruz Torres}, M. and R. Currie and {Da Silva}, {C. L.} and S. Dadabaev and L. Dai and X. Dai and E. Dall'Occo and J. Dalseno and C. D'Ambrosio and J. Daniel and A. Danilina and P. D'Argent and Davies, {J. E.} and A. Davis and {De Aguiar Francisco}, O. and {De Boer}, J. and {De Bruyn}, K. and {De Capua}, S. and {De Cian}, M. and {De Freitas Carneiro Da Graca}, U. and {De Lucia}, E. and {De Miranda}, {J. M.} and {De Paula}, L. and {De Serio}, M. and {De Simone}, D. and {De Simone}, P. and {De Vellis}, F. and {De Vries}, {J. A.} and Dean, {C. T.} and F. Debernardis and D. Decamp and V. Dedu and {Del Buono}, L. and B. Delaney and Dembinski, {H. P.} and V. Denysenko and O. Deschamps and F. Dettori and B. Dey and {Di Cicco}, A. and {Di Nezza}, P. and I. Diachkov and S. Didenko and {Dieste Maronas}, L. and S. Ding and V. Dobishuk and A. Dolmatov and C. Dong and Donohoe, {A. M.} and F. Dordei and {Dos Reis}, {A. C.} and L. Douglas and Downes, {A. G.} and Dudek, {M. W.} and L. Dufour and V. Duk and P. Durante and Durham, {J. M.} and D. Dutta and A. Dziurda and A. Dzyuba and S. Easo and U. Egede and V. Egorychev and S. Eidelman and {Eirea Orro}, C. and S. Eisenhardt and E. Ejopu and S. Ek-In and L. Eklund and S. Ely and A. Ene and E. Epple and S. Escher and J. Eschle and S. Esen and T. Evans and F. Fabiano and Falcao, {L. N.} and Y. Fan and B. Fang and S. Farry and D. Fazzini and M. Feo and {Fernandez Gomez}, M. and Fernez, {A. D.} and F. Ferrari and {Ferreira Lopes}, L. and {Ferreira Rodrigues}, F. and {Ferreres Sole}, S. and M. Ferrillo and M. Ferro-Luzzi and S. Filippov and Fini, {R. A.} and M. Fiorini and M. Firlej and Fischer, {K. M.} and Fitzgerald, {D. S.} and C. Fitzpatrick and T. Fiutowski and F. Fleuret and M. Fontana and F. Fontanelli and R. Forty and D. Foulds-Holt and {Franco Lima}, V. and {Franco Sevilla}, M. and M. Frank and E. Franzoso and G. Frau and C. Frei and Friday, {D. A.} and J. Fu and Q. Fuehring and T. Fulghesu and E. Gabriel and G. Galati and Galati, {M. D.} and {Gallas Torreira}, A. and D. Galli and S. Gambetta and Y. Gan and M. Gandelman and P. Gandini and Y. Gao and M. Garau and {Garcia Martin}, {L. M.} and {Garcia Moreno}, P. and {Garc{\'i}a Pardi{\~n}as}, J. and {Garcia Plana}, B. and {Garcia Rosales}, {F. A.} and L. Garrido and C. Gaspar and Geertsema, {R. E.} and D. Gerick and Gerken, {L. L.} and E. Gersabeck and M. Gersabeck and T. Gershon and L. Giambastiani and V. Gibson and Giemza, {H. K.} and Gilman, {A. L.} and M. Giovannetti and A. Giovent{\`u} and {Gironella Gironell}, P. and C. Giugliano and Giza, {M. A.} and K. Gizdov and Gkougkousis, {E. L.} and Gligorov, {V. V.} and C. G{\"o}bel and E. Golobardes and D. Golubkov and A. Golutvin and A. Gomes and {Gomez Fernandez}, S. and {Goncalves Abrantes}, F. and M. Goncerz and G. Gong and Gorelov, {I. V.} and C. Gotti and Grabowski, {J. P.} and T. Grammatico and {Granado Cardoso}, {L. A.} and E. Graug{\'e}s and E. Graverini and G. Graziani and Grecu, {A. T.} and Greeven, {L. M.} and Grieser, {N. A.} and L. Grillo and S. Gromov and {Gruberg Cazon}, {B. R.} and C. Gu and M. Guarise and M. Guittiere and G{\"u}nther, {P. A.} and E. Gushchin and A. Guth and Y. Guz and T. Gys and T. Hadavizadeh and G. Haefeli and C. Haen and J. Haimberger and Haines, {S. C.} and T. Halewood-Leagas and Halvorsen, {M. M.} and Hamilton, {P. M.} and J. Hammerich and Q. Han and X. Han and Hansen, {E. B.} and S. Hansmann-Menzemer and L. Hao and N. Harnew and T. Harrison and C. Hasse and M. Hatch and J. He and K. Heijhoff and K. Heinicke and C. Henderson and Henderson, {R. D.L.} and Hennequin, {A. M.} and K. Hennessy and L. Henry and Herd, {J. H.} and J. Heuel and A. Hicheur and D. Hill and M. Hilton and Hollitt, {S. E.} and J. Horswill and R. Hou and Y. Hou and J. Hu and J. Hu and W. Hu and X. Hu and W. Huang and X. Huang and W. Hulsbergen and Hunter, {R. J.} and M. Hushchyn and D. Hutchcroft and P. Ibis and M. Idzik and D. Ilin and P. Ilten and A. Inglessi and A. Iniukhin and A. Ishteev and K. Ivshin and R. Jacobsson and H. Jage and {Jaimes Elles}, {S. J.} and S. Jakobsen and E. Jans and Jashal, {B. K.} and A. Jawahery and V. Jevtic and E. Jiang and X. Jiang and Y. Jiang and M. John and D. Johnson and Jones, {C. R.} and Jones, {T. P.} and B. Jost and N. Jurik and I. Juszczak and S. Kandybei and Y. Kang and M. Karacson and D. Karpenkov and M. Karpov and Kautz, {J. W.} and F. Keizer and Keller, {D. M.} and M. Kenzie and T. Ketel and B. Khanji and A. Kharisova and S. Kholodenko and G. Khreich and T. Kirn and Kirsebom, {V. S.} and O. Kitouni and S. Klaver and N. Kleijne and K. Klimaszewski and Kmiec, {M. R.} and S. Koliiev and A. Kondybayeva and A. Konoplyannikov and P. Kopciewicz and R. Kopecna and P. Koppenburg and M. Korolev and I. Kostiuk and O. Kot and S. Kotriakhova and A. Kozachuk and P. Kravchenko and L. Kravchuk and Krawczyk, {R. D.} and M. Kreps and S. Kretzschmar and P. Krokovny and W. Krupa and W. Krzemien and J. Kubat and W. Kucewicz and M. Kucharczyk and V. Kudryavtsev and Kunde, {G. J.} and A. Kupsc and D. Lacarrere and G. Lafferty and A. Lai and A. Lampis and D. Lancierini and {Landesa Gomez}, C. and Lane, {J. J.} and R. Lane and G. Lanfranchi and C. Langenbruch and J. Langer and O. Lantwin and T. Latham and F. Lazzari and M. Lazzaroni and {Le Gac}, R. and Lee, {S. H.} and R. Lef{\`e}vre and A. Leflat and S. Legotin and P. Lenisa and O. Leroy and T. Lesiak and B. Leverington and A. Li and H. Li and K. Li and P. Li and Li, {P. R.} and S. Li and T. Li and Y. Li and Z. Li and X. Liang and C. Lin and T. Lin and R. Lindner and V. Lisovskyi and R. Litvinov and G. Liu and H. Liu and Q. Liu and S. Liu and {Lobo Salvia}, A. and A. Loi and R. Lollini and {Lomba Castro}, J. and I. Longstaff and Lopes, {J. H.} and {Lopez Huertas}, A. and {L{\'o}pez Soli{\~n}o}, S. and Lovell, {G. H.} and Y. Lu and C. Lucarelli and D. Lucchesi and S. Luchuk and {Lucio Martinez}, M. and V. Lukashenko and Y. Luo and A. Lupato and E. Luppi and A. Lusiani and K. Lynch and Lyu, {X. R.} and L. Ma and R. Ma and S. Maccolini and F. Machefert and F. Maciuc and I. Mackay and V. Macko and P. Mackowiak and {Madhan Mohan}, {L. R.} and A. Maevskiy and D. Maisuzenko and Majewski, {M. W.} and Malczewski, {J. J.} and S. Malde and B. Malecki and A. Malinin and T. Maltsev and G. Manca and G. Mancinelli and C. Mancuso and D. Manuzzi and Manzari, {C. A.} and D. Marangotto and Maratas, {J. M.} and Marchand, {J. F.} and U. Marconi and S. Mariani and {Marin Benito}, C. and J. Marks and Marshall, {A. M.} and Marshall, {P. J.} and G. Martelli and G. Martellotti and L. Martinazzoli and M. Martinelli and {Martinez Santos}, D. and {Martinez Vidal}, F. and A. Massafferri and M. Materok and R. Matev and A. Mathad and V. Matiunin and C. Matteuzzi and Mattioli, {K. R.} and A. Mauri and E. Maurice and J. Mauricio and M. Mazurek and M. McCann and L. McConnell and McGrath, {T. H.} and McHugh, {N. T.} and A. McNab and R. McNulty and Mead, {J. V.} and B. Meadows and G. Meier and D. Melnychuk and S. Meloni and M. Merk and A. Merli and {Meyer Garcia}, L. and D. Miao and M. Mikhasenko and Milanes, {D. A.} and E. Millard and M. Milovanovic and Minard, {M. N.} and A. Minotti and T. Miralles and Mitchell, {S. E.} and B. Mitreska and Mitzel, {D. S.} and A. M{\"o}dden and Mohammed, {R. A.} and Moise, {R. D.} and S. Mokhnenko and T. Momb{\"a}cher and M. Monk and Monroy, {I. A.} and S. Monteil and M. Morandin and G. Morello and Morello, {M. J.} and J. Moron and Morris, {A. B.} and Morris, {A. G.} and R. Mountain and H. Mu and E. Muhammad and F. Muheim and M. Mulder and D. Murray and Murphy, {C. H.} and D. Murray and R. Murta and P. Muzzetto and P. Naik and T. Nakada and R. Nandakumar and T. Nanut and I. Nasteva and M. Needham and N. Neri and S. Neubert and N. Neufeld and P. Neustroev and R. Newcombe and J. Nicolini and Niel, {E. M.} and S. Nieswand and N. Nikitin and Nolte, {N. S.} and C. Normand and {Novoa Fernandez}, J. and C. Nunez and A. Oblakowska-Mucha and V. Obraztsov and T. Oeser and O'Hanlon, {D. P.} and S. Okamura and R. Oldeman and F. Oliva and Olivares, {M. E.} and Onderwater, {C. J.G.} and O'Neil, {R. H.} and {Otalora Goicochea}, {J. M.} and T. Ovsiannikova and P. Owen and A. Oyanguren and O. Ozcelik and Padeken, {K. O.} and B. Pagare and Pais, {P. R.} and T. Pajero and A. Palano and M. Palutan and Y. Pan and G. Panshin and L. Paolucci and A. Papanestis and M. Pappagallo and Pappalardo, {L. L.} and C. Pappenheimer and W. Parker and C. Parkes and B. Passalacqua and G. Passaleva and A. Pastore and M. Patel and C. Patrignani and Pawley, {C. J.} and A. Pearce and A. Pellegrino and {Pepe Altarelli}, M. and S. Perazzini and D. Pereima and {Pereiro Castro}, A. and P. Perret and M. Petric and K. Petridis and A. Petrolini and A. Petrov and S. Petrucci and M. Petruzzo and H. Pham and A. Philippov and R. Piandani and L. Pica and M. Piccini and B. Pietrzyk and G. Pietrzyk and M. Pili and D. Pinci and F. Pisani and M. Pizzichemi and V. Placinta and J. Plews and {Plo Casasus}, M. and F. Polci and {Poli Lener}, M. and M. Poliakova and A. Poluektov and N. Polukhina and I. Polyakov and E. Polycarpo and S. Ponce and D. Popov and S. Popov and S. Poslavskii and K. Prasanth and L. Promberger and C. Prouve and V. Pugatch and V. Puill and G. Punzi and Qi, {H. R.} and W. Qian and N. Qin and S. Qu and R. Quagliani and Raab, {N. V.} and {Rabadan Trejo}, {R. I.} and B. Rachwal and Rademacker, {J. H.} and R. Rajagopalan and M. Rama and {Ramos Pernas}, M. and Rangel, {M. S.} and F. Ratnikov and G. Raven and {Rebollo De Miguel}, M. and F. Redi and J. Reich and F. Reiss and {Remon Alepuz}, C. and Z. Ren and V. Renaudin and Resmi, {P. K.} and R. Ribatti and Ricci, {A. M.} and S. Ricciardi and K. Richardson and M. Richardson-Slipper and K. Rinnert and P. Robbe and G. Robertson and Rodrigues, {A. B.} and E. Rodrigues and {Rodriguez Fernandez}, E. and {Rodriguez Lopez}, {J. A.} and {Rodriguez Rodriguez}, E. and A. Rollings and P. Roloff and V. Romanovskiy and {Romero Lamas}, M. and {Romero Vidal}, A. and Roth, {J. D.} and M. Rotondo and Rudolph, {M. S.} and T. Ruf and {Ruiz Fernandez}, {R. A.} and {Ruiz Vidal}, J. and A. Ryzhikov and J. Ryzka and {Saborido Silva}, {J. J.} and N. Sagidova and N. Sahoo and B. Saitta and M. Salomoni and {Sanchez Gras}, C. and I. Sanderswood and R. Santacesaria and {Santamarina Rios}, C. and M. Santimaria and E. Santovetti and D. Saranin and G. Sarpis and M. Sarpis and A. Sarti and C. Satriano and A. Satta and M. Saur and D. Savrina and H. Sazak and {Scantlebury Smead}, {L. G.} and A. Scarabotto and S. Schael and S. Scherl and M. Schiller and H. Schindler and M. Schmelling and B. Schmidt and S. Schmitt and O. Schneider and A. Schopper and M. Schubiger and S. Schulte and Schune, {M. H.} and R. Schwemmer and B. Sciascia and A. Sciuccati and S. Sellam and A. Semennikov and {Senghi Soares}, M. and A. Sergi and N. Serra and L. Sestini and A. Seuthe and Y. Shang and Shangase, {D. M.} and M. Shapkin and I. Shchemerov and L. Shchutska and T. Shears and L. Shekhtman and Z. Shen and S. Sheng and V. Shevchenko and B. Shi and Shields, {E. B.} and Y. Shimizu and E. Shmanin and Shupperd, {J. D.} and Siddi, {B. G.} and {Silva Coutinho}, R. and G. Simi and S. Simone and M. Singla and N. Skidmore and R. Skuza and T. Skwarnicki and Slater, {M. W.} and Smallwood, {J. C.} and Smeaton, {J. G.} and E. Smith and K. Smith and M. Smith and A. Snoch and {Soares Lavra}, L. and Sokoloff, {M. D.} and Soler, {F. J.P.} and A. Solomin and A. Solovev and I. Solovyev and R. Song and {Souza De Almeida}, {F. L.} and {Souza De Paula}, B. and B. Spaan and {Spadaro Norella}, E. and E. Spiridenkov and P. Spradlin and V. Sriskaran and F. Stagni and M. Stahl and S. Stahl and S. Stanislaus and Stein, {E. N.} and O. Steinkamp and O. Stenyakin and H. Stevens and S. Stone and D. Strekalina and F. Suljik and J. Sun and L. Sun and Y. Sun and P. Svihra and Swallow, {P. N.} and K. Swientek and A. Szabelski and T. Szumlak and M. Szymanski and Y. Tan and S. Taneja and Tanner, {A. R.} and Tat, {M. D.} and A. Terentev and F. Teubert and E. Thomas and Thompson, {D. J.D.} and Thomson, {K. A.} and H. Tilquin and V. Tisserand and S. T'Jampens and M. Tobin and L. Tomassetti and G. Tonani and X. Tong and {Torres Machado}, D. and Tou, {D. Y.} and E. Trifonova and Trilov, {S. M.} and C. Trippl and G. Tuci and A. Tully and N. Tuning and A. Ukleja and Unverzagt, {D. J.} and E. Ursov and A. Usachov and A. Ustyuzhanin and U. Uwer and A. Vagner and V. Vagnoni and A. Valassi and G. Valenti and {Valls Canudas}, N. and {Van Beuzekom}, M. and {Van Dijk}, M. and {Van Hecke}, H. and {Van Herwijnen}, E. and {Van Hulse}, {C. B.} and {Van Veghel}, M. and {Vazquez Gomez}, R. and {Vazquez Regueiro}, P. and {V{\'a}zquez Sierra}, C. and S. Vecchi and Velthuis, {J. J.} and M. Veltri and A. Venkateswaran and M. Veronesi and M. Vesterinen and D. Vieira and {Vieites Diaz}, M. and X. Vilasis-Cardona and {Vilella Figueras}, E. and A. Villa and P. Vincent and Volle, {F. C.} and {Vom Bruch}, D. and A. Vorobyev and V. Vorobyev and N. Voropaev and K. Vos and C. Vrahas and R. Waldi and J. Walsh and G. Wan and C. Wang and J. Wang and J. Wang and J. Wang and J. Wang and M. Wang and R. Wang and X. Wang and Y. Wang and Z. Wang and Z. Wang and Z. Wang and Ward, {J. A.} and Watson, {N. K.} and D. Websdale and Y. Wei and C. Weisser and Westhenry, {B. D.C.} and White, {D. J.} and M. Whitehead and Wiederhold, {A. R.} and D. Wiedner and G. Wilkinson and Wilkinson, {M. K.} and I. Williams and M. Williams and Williams, {M. R.J.} and R. Williams and Wilson, {F. F.} and W. Wislicki and M. Witek and L. Witola and Wong, {C. P.} and G. Wormser and Wotton, {S. A.} and H. Wu and K. Wyllie and Z. Xiang and D. Xiao and Y. Xie and A. Xu and J. Xu and L. Xu and L. Xu and M. Xu and Q. Xu and Z. Xu and Z. Xu and D. Yang and S. Yang and Y. Yang and Z. Yang and Z. Yang and Yeomans, {L. E.} and V. Yeroshenko and H. Yeung and H. Yin and J. Yu and X. Yuan and E. Zaffaroni and M. Zavertyaev and M. Zdybal and O. Zenaiev and M. Zeng and C. Zhang and D. Zhang and L. Zhang and S. Zhang and S. Zhang and Y. Zhang and Y. Zhang and A. Zharkova and A. Zhelezov and Y. Zheng and T. Zhou and X. Zhou and Y. Zhou and V. Zhovkovska and X. Zhu and X. Zhu and Z. Zhu and V. Zhukov and Q. Zou and S. Zucchelli and D. Zuliani and G. Zunica and {(LHCb Collaboration)}",

note = "Funding Information: We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at the LHCb institutes. We acknowledge support from CERN and from the national agencies: CAPES, CNPq, FAPERJ, and FINEP (Brazil); MOST and NSFC (China); CNRS/IN2P3 (France); BMBF, DFG, and MPG (Germany); INFN (Italy); NWO (Netherlands); MNiSW and NCN (Poland); MEN/IFA (Romania); MICINN (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (U.K.); DOE NP and NSF (U.S.). We acknowledge the computing resources that are provided by CERN, IN2P3 (France), KIT and DESY (Germany), INFN (Italy), SURF (Netherlands), PIC (Spain), GridPP (U.K.), CSCS (Switzerland), IFIN-HH (Romania), CBPF (Brazil), Polish WLCG (Poland), and NERSC (USA). We are indebted to the communities behind the multiple open-source software packages on which we depend. Individual groups or members have received support from ARC and ARDC (Australia); Minciencias (Colombia); AvH Foundation (Germany); EPLANET, Marie Sk{\l}odowska-Curie Actions and ERC (European Union); A*MIDEX, ANR, IPhU and Labex P2IO, and R{\'e}gion Auvergne-Rh{\^o}ne-Alpes (France); Key Research Program of Frontier Sciences of CAS, CAS PIFI, CAS CCEPP, Fundamental Research Funds for the Central Universities, and Sci. & Tech. Program of Guangzhou (China); GVA, XuntaGal, GENCAT, and Prog. Atracci{\'o}n Talento, CM (Spain); SRC (Sweden); the Leverhulme Trust, the Royal Society, and UKRI (U.K.). Publisher Copyright: {\textcopyright} 2023 CERN. ",

year = "2023",

month = aug,

day = "18",

doi = "10.1103/PhysRevLett.131.071901",

language = "English",

volume = "131",

pages = "1--12",

journal = "Physical review letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "7",

}

TY - JOUR

T1 - Observation of a Resonant Structure near the Ds+ Ds- Threshold in the B+ → Ds+ Ds- K+ Decay

AU - Aaij, R.

AU - Abdelmotteleb, A. S.W.

AU - Abellan Beteta, C.

AU - Abudinén, F.

AU - Ackernley, T.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Afsharnia, H.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Aiola, S.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alvarez Cartelle, P.

AU - Amalric, R.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreianov, A.

AU - Andreotti, M.

AU - Andreou, D.

AU - Ao, D.

AU - Archilli, F.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Bachmayer, M.

AU - Back, J. J.

AU - Bailly-Reyre, A.

AU - Baladron Rodriguez, P.

AU - Balagura, V.

AU - Baldini, W.

AU - Baptista De Souza Leite, J.

AU - Barbetti, M.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Basels, J. M.

AU - Bassi, G.

AU - Batsukh, B.

AU - Battig, A.

AU - Bay, A.

AU - Beck, A.

AU - Becker, M.

AU - Bedeschi, F.

AU - Bediaga, I. B.

AU - Beiter, A.

AU - Belavin, V.

AU - Belin, S.

AU - Bellee, V.

AU - Belous, K.

AU - Belov, I.

AU - Belyaev, I.

AU - Benane, G.

AU - Bencivenni, G.

AU - Ben-Haim, E.

AU - Berezhnoy, A.

AU - Bernet, R.

AU - Bernet Andres, S.

AU - Berninghoff, D.

AU - Bernstein, H. C.

AU - Bertella, C.

AU - Bertolin, A.

AU - Betancourt, C.

AU - Betti, F.

AU - Bezshyiko, Ia

AU - Bhasin, S.

AU - Bhom, J.

AU - Bian, L.

AU - Bieker, M. S.

AU - Biesuz, N. V.

AU - Bifani, S.

AU - Billoir, P.

AU - Biolchini, A.

AU - Birch, M.

AU - Bishop, F. C.R.

AU - Bitadze, A.

AU - Bizzeti, A.

AU - Blago, M. P.

AU - Blake, T.

AU - Blanc, F.

AU - Blusk, S.

AU - Bobulska, D.

AU - Boelhauve, J. A.

AU - Boente Garcia, O.

AU - Boettcher, T.

AU - Boldyrev, A.

AU - Bolognani, C. S.

AU - Bolzonella, R.

AU - Bondar, N.

AU - Borgato, F.

AU - Borghi, S.

AU - Borsato, M.

AU - Borsuk, J. T.

AU - Bouchiba, S. A.

AU - Bowcock, T. J.V.

AU - Boyer, A.

AU - Bozzi, C.

AU - Bradley, M. J.

AU - Braun, S.

AU - Brea Rodriguez, A.

AU - Brodzicka, J.

AU - Brossa Gonzalo, A.

AU - Brown, J.

AU - Brundu, D.

AU - Buonaura, A.

AU - Buonincontri, L.

AU - Burke, A. T.

AU - Burr, C.

AU - Bursche, A.

AU - Butkevich, A.

AU - Butter, J. S.

AU - Buytaert, J.

AU - Byczynski, W.

AU - Cadeddu, S.

AU - Cai, H.

AU - Calabrese, R.

AU - Calefice, L.

AU - Cali, S.

AU - Calladine, R.

AU - Calvi, M.

AU - Calvo Gomez, M.

AU - Campana, P.

AU - Campora Perez, D. H.

AU - Campoverde Quezada, A. F.

AU - Capelli, S.

AU - Capriotti, L.

AU - Carbone, A.

AU - Carboni, G.

AU - Cardinale, R.

AU - Cardini, A.

AU - Carli, I.

AU - Carniti, P.

AU - Carus, L.

AU - Casais Vidal, A.

AU - Caspary, R.

AU - Casse, G.

AU - Cattaneo, M.

AU - Cavallero, G.

AU - Cavallini, V.

AU - Celani, S.

AU - Cerasoli, J.

AU - Cervenkov, D.

AU - Chadwick, A. J.

AU - Chapman, M. G.

AU - Charles, M.

AU - Charpentier, Ph

AU - Chavez Barajas, C. A.

AU - Chefdeville, M.

AU - Chen, C.

AU - Chen, S.

AU - Chernov, A.

AU - Chernyshenko, S.

AU - Chobanova, V.

AU - Cholak, S.

AU - Chrzaszcz, M.

AU - Chubykin, A.

AU - Chulikov, V.

AU - Ciambrone, P.

AU - Cicala, M. F.

AU - Cid Vidal, X.

AU - Ciezarek, G.

AU - Ciullo, G.

AU - Clarke, P. E.L.

AU - Clemencic, M.

AU - Cliff, H. V.

AU - Closier, J.

AU - Cobbledick, J. L.

AU - Coco, V.

AU - Coelho, J. A.B.

AU - Cogan, J.

AU - Cogneras, E.

AU - Cojocariu, L.

AU - Collins, P.

AU - Colombo, T.

AU - Congedo, L.

AU - Contu, A.

AU - Cooke, N.

AU - Corredoira, I.

AU - Corti, G.

AU - Couturier, B.

AU - Craik, D. C.

AU - Crkovská, J.

AU - Cruz Torres, M.

AU - Currie, R.

AU - Da Silva, C. L.

AU - Dadabaev, S.

AU - Dai, L.

AU - Dai, X.

AU - Dall'Occo, E.

AU - Dalseno, J.

AU - D'Ambrosio, C.

AU - Daniel, J.

AU - Danilina, A.

AU - D'Argent, P.

AU - Davies, J. E.

AU - Davis, A.

AU - De Aguiar Francisco, O.

AU - De Boer, J.

AU - De Bruyn, K.

AU - De Capua, S.

AU - De Cian, M.

AU - De Freitas Carneiro Da Graca, U.

AU - De Lucia, E.

AU - De Miranda, J. M.

AU - De Paula, L.

AU - De Serio, M.

AU - De Simone, D.

AU - De Simone, P.

AU - De Vellis, F.

AU - De Vries, J. A.

AU - Dean, C. T.

AU - Debernardis, F.

AU - Decamp, D.

AU - Dedu, V.

AU - Del Buono, L.

AU - Delaney, B.

AU - Dembinski, H. P.

AU - Denysenko, V.

AU - Deschamps, O.

AU - Dettori, F.

AU - Dey, B.

AU - Di Cicco, A.

AU - Di Nezza, P.

AU - Diachkov, I.

AU - Didenko, S.

AU - Dieste Maronas, L.

AU - Ding, S.

AU - Dobishuk, V.

AU - Dolmatov, A.

AU - Dong, C.

AU - Donohoe, A. M.

AU - Dordei, F.

AU - Dos Reis, A. C.

AU - Douglas, L.

AU - Downes, A. G.

AU - Dudek, M. W.

AU - Dufour, L.

AU - Duk, V.

AU - Durante, P.

AU - Durham, J. M.

AU - Dutta, D.

AU - Dziurda, A.

AU - Dzyuba, A.

AU - Easo, S.

AU - Egede, U.

AU - Egorychev, V.

AU - Eidelman, S.

AU - Eirea Orro, C.

AU - Eisenhardt, S.

AU - Ejopu, E.

AU - Ek-In, S.

AU - Eklund, L.

AU - Ely, S.

AU - Ene, A.

AU - Epple, E.

AU - Escher, S.

AU - Eschle, J.

AU - Esen, S.

AU - Evans, T.

AU - Fabiano, F.

AU - Falcao, L. N.

AU - Fan, Y.

AU - Fang, B.

AU - Farry, S.

AU - Fazzini, D.

AU - Feo, M.

AU - Fernandez Gomez, M.

AU - Fernez, A. D.

AU - Ferrari, F.

AU - Ferreira Lopes, L.

AU - Ferreira Rodrigues, F.

AU - Ferreres Sole, S.

AU - Ferrillo, M.

AU - Ferro-Luzzi, M.

AU - Filippov, S.

AU - Fini, R. A.

AU - Fiorini, M.

AU - Firlej, M.

AU - Fischer, K. M.

AU - Fitzgerald, D. S.

AU - Fitzpatrick, C.

AU - Fiutowski, T.

AU - Fleuret, F.

AU - Fontana, M.

AU - Fontanelli, F.

AU - Forty, R.

AU - Foulds-Holt, D.

AU - Franco Lima, V.

AU - Franco Sevilla, M.

AU - Frank, M.

AU - Franzoso, E.

AU - Frau, G.

AU - Frei, C.

AU - Friday, D. A.

AU - Fu, J.

AU - Fuehring, Q.

AU - Fulghesu, T.

AU - Gabriel, E.

AU - Galati, G.

AU - Galati, M. D.

AU - Gallas Torreira, A.

AU - Galli, D.

AU - Gambetta, S.

AU - Gan, Y.

AU - Gandelman, M.

AU - Gandini, P.

AU - Gao, Y.

AU - Garau, M.

AU - Garcia Martin, L. M.

AU - Garcia Moreno, P.

AU - García Pardiñas, J.

AU - Garcia Plana, B.

AU - Garcia Rosales, F. A.

AU - Garrido, L.

AU - Gaspar, C.

AU - Geertsema, R. E.

AU - Gerick, D.

AU - Gerken, L. L.

AU - Gersabeck, E.

AU - Gersabeck, M.

AU - Gershon, T.

AU - Giambastiani, L.

AU - Gibson, V.

AU - Giemza, H. K.

AU - Gilman, A. L.

AU - Giovannetti, M.

AU - Gioventù, A.

AU - Gironella Gironell, P.

AU - Giugliano, C.

AU - Giza, M. A.

AU - Gizdov, K.

AU - Gkougkousis, E. L.

AU - Gligorov, V. V.

AU - Göbel, C.

AU - Golobardes, E.

AU - Golubkov, D.

AU - Golutvin, A.

AU - Gomes, A.

AU - Gomez Fernandez, S.

AU - Goncalves Abrantes, F.

AU - Goncerz, M.

AU - Gong, G.

AU - Gorelov, I. V.

AU - Gotti, C.

AU - Grabowski, J. P.

AU - Grammatico, T.

AU - Granado Cardoso, L. A.

AU - Graugés, E.

AU - Graverini, E.

AU - Graziani, G.

AU - Grecu, A. T.

AU - Greeven, L. M.

AU - Grieser, N. A.

AU - Grillo, L.

AU - Gromov, S.

AU - Gruberg Cazon, B. R.

AU - Gu, C.

AU - Guarise, M.

AU - Guittiere, M.

AU - Günther, P. A.

AU - Gushchin, E.

AU - Guth, A.

AU - Guz, Y.

AU - Gys, T.

AU - Hadavizadeh, T.

AU - Haefeli, G.

AU - Haen, C.

AU - Haimberger, J.

AU - Haines, S. C.

AU - Halewood-Leagas, T.

AU - Halvorsen, M. M.

AU - Hamilton, P. M.

AU - Hammerich, J.

AU - Han, Q.

AU - Han, X.

AU - Hansen, E. B.

AU - Hansmann-Menzemer, S.

AU - Hao, L.

AU - Harnew, N.

AU - Harrison, T.

AU - Hasse, C.

AU - Hatch, M.

AU - He, J.

AU - Heijhoff, K.

AU - Heinicke, K.

AU - Henderson, C.

AU - Henderson, R. D.L.

AU - Hennequin, A. M.

AU - Hennessy, K.

AU - Henry, L.

AU - Herd, J. H.

AU - Heuel, J.

AU - Hicheur, A.

AU - Hill, D.

AU - Hilton, M.

AU - Hollitt, S. E.

AU - Horswill, J.

AU - Hou, R.

AU - Hou, Y.

AU - Hu, J.

AU - Hu, W.

AU - Hu, X.

AU - Huang, W.

AU - Huang, X.

AU - Hulsbergen, W.

AU - Hunter, R. J.

AU - Hushchyn, M.

AU - Hutchcroft, D.

AU - Ibis, P.

AU - Idzik, M.

AU - Ilin, D.

AU - Ilten, P.

AU - Inglessi, A.

AU - Iniukhin, A.

AU - Ishteev, A.

AU - Ivshin, K.

AU - Jacobsson, R.

AU - Jage, H.

AU - Jaimes Elles, S. J.

AU - Jakobsen, S.

AU - Jans, E.

AU - Jashal, B. K.

AU - Jawahery, A.

AU - Jevtic, V.

AU - Jiang, E.

AU - Jiang, X.

AU - Jiang, Y.

AU - John, M.

AU - Johnson, D.

AU - Jones, C. R.

AU - Jones, T. P.

AU - Jost, B.

AU - Jurik, N.

AU - Juszczak, I.

AU - Kandybei, S.

AU - Kang, Y.

AU - Karacson, M.

AU - Karpenkov, D.

AU - Karpov, M.

AU - Kautz, J. W.

AU - Keizer, F.

AU - Keller, D. M.

AU - Kenzie, M.

AU - Ketel, T.

AU - Khanji, B.

AU - Kharisova, A.

AU - Kholodenko, S.

AU - Khreich, G.

AU - Kirn, T.

AU - Kirsebom, V. S.

AU - Kitouni, O.

AU - Klaver, S.

AU - Kleijne, N.

AU - Klimaszewski, K.

AU - Kmiec, M. R.

AU - Koliiev, S.

AU - Kondybayeva, A.

AU - Konoplyannikov, A.

AU - Kopciewicz, P.

AU - Kopecna, R.

AU - Koppenburg, P.

AU - Korolev, M.

AU - Kostiuk, I.

AU - Kot, O.

AU - Kotriakhova, S.

AU - Kozachuk, A.

AU - Kravchenko, P.

AU - Kravchuk, L.

AU - Krawczyk, R. D.

AU - Kreps, M.

AU - Kretzschmar, S.

AU - Krokovny, P.

AU - Krupa, W.

AU - Krzemien, W.

AU - Kubat, J.

AU - Kucewicz, W.

AU - Kucharczyk, M.

AU - Kudryavtsev, V.

AU - Kunde, G. J.

AU - Kupsc, A.

AU - Lacarrere, D.

AU - Lafferty, G.

AU - Lai, A.

AU - Lampis, A.

AU - Lancierini, D.

AU - Landesa Gomez, C.

AU - Lane, J. J.

AU - Lane, R.

AU - Lanfranchi, G.

AU - Langenbruch, C.

AU - Langer, J.

AU - Lantwin, O.

AU - Latham, T.

AU - Lazzari, F.

AU - Lazzaroni, M.

AU - Le Gac, R.

AU - Lee, S. H.

AU - Lefèvre, R.

AU - Leflat, A.

AU - Legotin, S.

AU - Lenisa, P.

AU - Leroy, O.

AU - Lesiak, T.

AU - Leverington, B.

AU - Li, A.

AU - Li, H.

AU - Li, K.

AU - Li, P.

AU - Li, P. R.

AU - Li, S.

AU - Li, T.

AU - Li, Y.

AU - Li, Z.

AU - Liang, X.

AU - Lin, C.

AU - Lin, T.

AU - Lindner, R.

AU - Lisovskyi, V.

AU - Litvinov, R.

AU - Liu, G.

AU - Liu, H.

AU - Liu, Q.

AU - Liu, S.

AU - Lobo Salvia, A.

AU - Loi, A.

AU - Lollini, R.

AU - Lomba Castro, J.

AU - Longstaff, I.

AU - Lopes, J. H.

AU - Lopez Huertas, A.

AU - López Soliño, S.

AU - Lovell, G. H.

AU - Lu, Y.

AU - Lucarelli, C.

AU - Lucchesi, D.

AU - Luchuk, S.

AU - Lucio Martinez, M.

AU - Lukashenko, V.

AU - Luo, Y.

AU - Lupato, A.

AU - Luppi, E.

AU - Lusiani, A.

AU - Lynch, K.

AU - Lyu, X. R.

AU - Ma, L.

AU - Ma, R.

AU - Maccolini, S.

AU - Machefert, F.

AU - Maciuc, F.

AU - Mackay, I.

AU - Macko, V.

AU - Mackowiak, P.

AU - Madhan Mohan, L. R.

AU - Maevskiy, A.

AU - Maisuzenko, D.

AU - Majewski, M. W.

AU - Malczewski, J. J.

AU - Malde, S.

AU - Malecki, B.

AU - Malinin, A.

AU - Maltsev, T.

AU - Manca, G.

AU - Mancinelli, G.

AU - Mancuso, C.

AU - Manuzzi, D.

AU - Manzari, C. A.

AU - Marangotto, D.

AU - Maratas, J. M.

AU - Marchand, J. F.

AU - Marconi, U.

AU - Mariani, S.

AU - Marin Benito, C.

AU - Marks, J.

AU - Marshall, A. M.

AU - Marshall, P. J.

AU - Martelli, G.

AU - Martellotti, G.

AU - Martinazzoli, L.

AU - Martinelli, M.

AU - Martinez Santos, D.

AU - Martinez Vidal, F.

AU - Massafferri, A.

AU - Materok, M.

AU - Matev, R.

AU - Mathad, A.

AU - Matiunin, V.

AU - Matteuzzi, C.

AU - Mattioli, K. R.

AU - Mauri, A.

AU - Maurice, E.

AU - Mauricio, J.

AU - Mazurek, M.

AU - McCann, M.

AU - McConnell, L.

AU - McGrath, T. H.

AU - McHugh, N. T.

AU - McNab, A.

AU - McNulty, R.

AU - Mead, J. V.

AU - Meadows, B.

AU - Meier, G.

AU - Melnychuk, D.

AU - Meloni, S.

AU - Merk, M.

AU - Merli, A.

AU - Meyer Garcia, L.

AU - Miao, D.

AU - Mikhasenko, M.

AU - Milanes, D. A.

AU - Millard, E.

AU - Milovanovic, M.

AU - Minard, M. N.

AU - Minotti, A.

AU - Miralles, T.

AU - Mitchell, S. E.

AU - Mitreska, B.

AU - Mitzel, D. S.

AU - Mödden, A.

AU - Mohammed, R. A.

AU - Moise, R. D.

AU - Mokhnenko, S.

AU - Mombächer, T.

AU - Monk, M.

AU - Monroy, I. A.

AU - Monteil, S.

AU - Morandin, M.

AU - Morello, G.

AU - Morello, M. J.

AU - Moron, J.

AU - Morris, A. B.

AU - Morris, A. G.

AU - Mountain, R.

AU - Mu, H.

AU - Muhammad, E.

AU - Muheim, F.

AU - Mulder, M.

AU - Murray, D.

AU - Murphy, C. H.

AU - Murray, D.

AU - Murta, R.

AU - Muzzetto, P.

AU - Naik, P.

AU - Nakada, T.

AU - Nandakumar, R.

AU - Nanut, T.

AU - Nasteva, I.

AU - Needham, M.

AU - Neri, N.

AU - Neubert, S.

AU - Neufeld, N.

AU - Neustroev, P.

AU - Newcombe, R.

AU - Nicolini, J.

AU - Niel, E. M.

AU - Nieswand, S.

AU - Nikitin, N.

AU - Nolte, N. S.

AU - Normand, C.

AU - Novoa Fernandez, J.

AU - Nunez, C.

AU - Oblakowska-Mucha, A.

AU - Obraztsov, V.

AU - Oeser, T.

AU - O'Hanlon, D. P.

AU - Okamura, S.

AU - Oldeman, R.

AU - Oliva, F.

AU - Olivares, M. E.

AU - Onderwater, C. J.G.

AU - O'Neil, R. H.

AU - Otalora Goicochea, J. M.

AU - Ovsiannikova, T.

AU - Owen, P.

AU - Oyanguren, A.

AU - Ozcelik, O.

AU - Padeken, K. O.

AU - Pagare, B.

AU - Pais, P. R.

AU - Pajero, T.

AU - Palano, A.

AU - Palutan, M.

AU - Pan, Y.

AU - Panshin, G.

AU - Paolucci, L.

AU - Papanestis, A.

AU - Pappagallo, M.

AU - Pappalardo, L. L.

AU - Pappenheimer, C.

AU - Parker, W.

AU - Parkes, C.

AU - Passalacqua, B.

AU - Passaleva, G.

AU - Pastore, A.

AU - Patel, M.

AU - Patrignani, C.

AU - Pawley, C. J.

AU - Pearce, A.

AU - Pellegrino, A.

AU - Pepe Altarelli, M.

AU - Perazzini, S.

AU - Pereima, D.

AU - Pereiro Castro, A.

AU - Perret, P.

AU - Petric, M.

AU - Petridis, K.

AU - Petrolini, A.

AU - Petrov, A.

AU - Petrucci, S.

AU - Petruzzo, M.

AU - Pham, H.

AU - Philippov, A.

AU - Piandani, R.

AU - Pica, L.

AU - Piccini, M.

AU - Pietrzyk, B.

AU - Pietrzyk, G.

AU - Pili, M.

AU - Pinci, D.

AU - Pisani, F.

AU - Pizzichemi, M.

AU - Placinta, V.

AU - Plews, J.

AU - Plo Casasus, M.

AU - Polci, F.

AU - Poli Lener, M.

AU - Poliakova, M.

AU - Poluektov, A.

AU - Polukhina, N.

AU - Polyakov, I.

AU - Polycarpo, E.

AU - Ponce, S.

AU - Popov, D.

AU - Popov, S.

AU - Poslavskii, S.

AU - Prasanth, K.

AU - Promberger, L.

AU - Prouve, C.

AU - Pugatch, V.

AU - Puill, V.

AU - Punzi, G.

AU - Qi, H. R.

AU - Qian, W.

AU - Qin, N.

AU - Qu, S.

AU - Quagliani, R.

AU - Raab, N. V.

AU - Rabadan Trejo, R. I.

AU - Rachwal, B.

AU - Rademacker, J. H.

AU - Rajagopalan, R.

AU - Rama, M.

AU - Ramos Pernas, M.

AU - Rangel, M. S.

AU - Ratnikov, F.

AU - Raven, G.

AU - Rebollo De Miguel, M.

AU - Redi, F.

AU - Reich, J.

AU - Reiss, F.

AU - Remon Alepuz, C.

AU - Ren, Z.

AU - Renaudin, V.

AU - Resmi, P. K.

AU - Ribatti, R.

AU - Ricci, A. M.

AU - Ricciardi, S.

AU - Richardson, K.

AU - Richardson-Slipper, M.

AU - Rinnert, K.

AU - Robbe, P.

AU - Robertson, G.

AU - Rodrigues, A. B.

AU - Rodrigues, E.

AU - Rodriguez Fernandez, E.

AU - Rodriguez Lopez, J. A.

AU - Rodriguez Rodriguez, E.

AU - Rollings, A.

AU - Roloff, P.

AU - Romanovskiy, V.

AU - Romero Lamas, M.

AU - Romero Vidal, A.

AU - Roth, J. D.

AU - Rotondo, M.

AU - Rudolph, M. S.

AU - Ruf, T.

AU - Ruiz Fernandez, R. A.

AU - Ruiz Vidal, J.

AU - Ryzhikov, A.

AU - Ryzka, J.

AU - Saborido Silva, J. J.

AU - Sagidova, N.

AU - Sahoo, N.

AU - Saitta, B.

AU - Salomoni, M.

AU - Sanchez Gras, C.

AU - Sanderswood, I.

AU - Santacesaria, R.

AU - Santamarina Rios, C.

AU - Santimaria, M.

AU - Santovetti, E.

AU - Saranin, D.

AU - Sarpis, G.

AU - Sarpis, M.

AU - Sarti, A.

AU - Satriano, C.

AU - Satta, A.

AU - Saur, M.

AU - Savrina, D.

AU - Sazak, H.

AU - Scantlebury Smead, L. G.

AU - Scarabotto, A.

AU - Schael, S.

AU - Scherl, S.

AU - Schiller, M.

AU - Schindler, H.

AU - Schmelling, M.

AU - Schmidt, B.

AU - Schmitt, S.

AU - Schneider, O.

AU - Schopper, A.

AU - Schubiger, M.

AU - Schulte, S.

AU - Schune, M. H.

AU - Schwemmer, R.

AU - Sciascia, B.

AU - Sciuccati, A.

AU - Sellam, S.

AU - Semennikov, A.

AU - Senghi Soares, M.

AU - Sergi, A.

AU - Serra, N.

AU - Sestini, L.

AU - Seuthe, A.

AU - Shang, Y.

AU - Shangase, D. M.

AU - Shapkin, M.

AU - Shchemerov, I.

AU - Shchutska, L.

AU - Shears, T.

AU - Shekhtman, L.

AU - Shen, Z.

AU - Sheng, S.

AU - Shevchenko, V.

AU - Shi, B.

AU - Shields, E. B.

AU - Shimizu, Y.

AU - Shmanin, E.

AU - Shupperd, J. D.

AU - Siddi, B. G.

AU - Silva Coutinho, R.

AU - Simi, G.

AU - Simone, S.

AU - Singla, M.

AU - Skidmore, N.

AU - Skuza, R.

AU - Skwarnicki, T.

AU - Slater, M. W.

AU - Smallwood, J. C.

AU - Smeaton, J. G.

AU - Smith, E.

AU - Smith, K.

AU - Smith, M.

AU - Snoch, A.

AU - Soares Lavra, L.

AU - Sokoloff, M. D.

AU - Soler, F. J.P.

AU - Solomin, A.

AU - Solovev, A.

AU - Solovyev, I.

AU - Song, R.

AU - Souza De Almeida, F. L.

AU - Souza De Paula, B.

AU - Spaan, B.

AU - Spadaro Norella, E.

AU - Spiridenkov, E.

AU - Spradlin, P.

AU - Sriskaran, V.

AU - Stagni, F.

AU - Stahl, M.

AU - Stahl, S.

AU - Stanislaus, S.

AU - Stein, E. N.

AU - Steinkamp, O.

AU - Stenyakin, O.

AU - Stevens, H.

AU - Stone, S.

AU - Strekalina, D.

AU - Suljik, F.

AU - Sun, J.

AU - Sun, L.

AU - Sun, Y.

AU - Svihra, P.

AU - Swallow, P. N.

AU - Swientek, K.

AU - Szabelski, A.

AU - Szumlak, T.

AU - Szymanski, M.

AU - Tan, Y.

AU - Taneja, S.

AU - Tanner, A. R.

AU - Tat, M. D.

AU - Terentev, A.

AU - Teubert, F.

AU - Thomas, E.

AU - Thompson, D. J.D.

AU - Thomson, K. A.

AU - Tilquin, H.

AU - Tisserand, V.

AU - T'Jampens, S.

AU - Tobin, M.

AU - Tomassetti, L.

AU - Tonani, G.

AU - Tong, X.

AU - Torres Machado, D.

AU - Tou, D. Y.

AU - Trifonova, E.

AU - Trilov, S. M.

AU - Trippl, C.

AU - Tuci, G.

AU - Tully, A.

AU - Tuning, N.

AU - Ukleja, A.

AU - Unverzagt, D. J.

AU - Ursov, E.

AU - Usachov, A.

AU - Ustyuzhanin, A.

AU - Uwer, U.

AU - Vagner, A.

AU - Vagnoni, V.

AU - Valassi, A.

AU - Valenti, G.

AU - Valls Canudas, N.

AU - Van Beuzekom, M.

AU - Van Dijk, M.

AU - Van Hecke, H.

AU - Van Herwijnen, E.

AU - Van Hulse, C. B.

AU - Van Veghel, M.

AU - Vazquez Gomez, R.

AU - Vazquez Regueiro, P.

AU - Vázquez Sierra, C.

AU - Vecchi, S.

AU - Velthuis, J. J.

AU - Veltri, M.

AU - Venkateswaran, A.

AU - Veronesi, M.

AU - Vesterinen, M.

AU - Vieira, D.

AU - Vieites Diaz, M.

AU - Vilasis-Cardona, X.

AU - Vilella Figueras, E.

AU - Villa, A.

AU - Vincent, P.

AU - Volle, F. C.

AU - Vom Bruch, D.

AU - Vorobyev, A.

AU - Vorobyev, V.

AU - Voropaev, N.

AU - Vos, K.

AU - Vrahas, C.

AU - Waldi, R.

AU - Walsh, J.

AU - Wan, G.

AU - Wang, C.

AU - Wang, J.

AU - Wang, M.

AU - Wang, R.

AU - Wang, X.

AU - Wang, Y.

AU - Wang, Z.

AU - Ward, J. A.

AU - Watson, N. K.

AU - Websdale, D.

AU - Wei, Y.

AU - Weisser, C.

AU - Westhenry, B. D.C.

AU - White, D. J.

AU - Whitehead, M.

AU - Wiederhold, A. R.

AU - Wiedner, D.

AU - Wilkinson, G.

AU - Wilkinson, M. K.

AU - Williams, I.

AU - Williams, M.

AU - Williams, M. R.J.

AU - Williams, R.

AU - Wilson, F. F.

AU - Wislicki, W.

AU - Witek, M.

AU - Witola, L.

AU - Wong, C. P.

AU - Wormser, G.

AU - Wotton, S. A.

AU - Wu, H.

AU - Wyllie, K.

AU - Xiang, Z.

AU - Xiao, D.

AU - Xie, Y.

AU - Xu, A.

AU - Xu, J.

AU - Xu, L.

AU - Xu, M.

AU - Xu, Q.

AU - Xu, Z.

AU - Yang, D.

AU - Yang, S.

AU - Yang, Y.

AU - Yang, Z.

AU - Yeomans, L. E.

AU - Yeroshenko, V.

AU - Yeung, H.

AU - Yin, H.

AU - Yu, J.

AU - Yuan, X.

AU - Zaffaroni, E.

AU - Zavertyaev, M.

AU - Zdybal, M.

AU - Zenaiev, O.

AU - Zeng, M.

AU - Zhang, C.

AU - Zhang, D.

AU - Zhang, L.

AU - Zhang, S.

AU - Zhang, Y.

AU - Zharkova, A.

AU - Zhelezov, A.

AU - Zheng, Y.

AU - Zhou, T.

AU - Zhou, X.

AU - Zhou, Y.

AU - Zhovkovska, V.

AU - Zhu, X.

AU - Zhu, Z.

AU - Zhukov, V.

AU - Zou, Q.

AU - Zucchelli, S.

AU - Zuliani, D.

AU - Zunica, G.

AU - (LHCb Collaboration)

N1 - Funding Information: We express our gratitude to our colleagues in the CERN accelerator departments for the excellent performance of the LHC. We thank the technical and administrative staff at the LHCb institutes. We acknowledge support from CERN and from the national agencies: CAPES, CNPq, FAPERJ, and FINEP (Brazil); MOST and NSFC (China); CNRS/IN2P3 (France); BMBF, DFG, and MPG (Germany); INFN (Italy); NWO (Netherlands); MNiSW and NCN (Poland); MEN/IFA (Romania); MICINN (Spain); SNSF and SER (Switzerland); NASU (Ukraine); STFC (U.K.); DOE NP and NSF (U.S.). We acknowledge the computing resources that are provided by CERN, IN2P3 (France), KIT and DESY (Germany), INFN (Italy), SURF (Netherlands), PIC (Spain), GridPP (U.K.), CSCS (Switzerland), IFIN-HH (Romania), CBPF (Brazil), Polish WLCG (Poland), and NERSC (USA). We are indebted to the communities behind the multiple open-source software packages on which we depend. Individual groups or members have received support from ARC and ARDC (Australia); Minciencias (Colombia); AvH Foundation (Germany); EPLANET, Marie Skłodowska-Curie Actions and ERC (European Union); A*MIDEX, ANR, IPhU and Labex P2IO, and Région Auvergne-Rhône-Alpes (France); Key Research Program of Frontier Sciences of CAS, CAS PIFI, CAS CCEPP, Fundamental Research Funds for the Central Universities, and Sci. & Tech. Program of Guangzhou (China); GVA, XuntaGal, GENCAT, and Prog. Atracción Talento, CM (Spain); SRC (Sweden); the Leverhulme Trust, the Royal Society, and UKRI (U.K.). Publisher Copyright: © 2023 CERN.

PY - 2023/8/18

Y1 - 2023/8/18

N2 - An amplitude analysis of the B+→Ds+Ds-K+ decay is carried out to study for the first time its intermediate resonant contributions, using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A near-threshold peaking structure, referred to as X(3960), is observed in the Ds+Ds- invariant-mass spectrum with significance greater than 12 standard deviations. The mass, width, and the quantum numbers of the structure are measured to be 3956±5±10 MeV, 43±13±8 MeV, and JPC=0++, respectively, where the first uncertainties are statistical and the second systematic. The properties of the new structure are consistent with recent theoretical predictions for a state composed of cc¯ss¯ quarks. Evidence for an additional structure is found around 4140 MeV in the Ds+Ds- invariant mass, which might be caused either by a new resonance with the 0++ assignment or by a J/ψφ↔Ds+Ds- coupled-channel effect.

AB - An amplitude analysis of the B+→Ds+Ds-K+ decay is carried out to study for the first time its intermediate resonant contributions, using proton-proton collision data collected with the LHCb detector at center-of-mass energies of 7, 8, and 13 TeV. A near-threshold peaking structure, referred to as X(3960), is observed in the Ds+Ds- invariant-mass spectrum with significance greater than 12 standard deviations. The mass, width, and the quantum numbers of the structure are measured to be 3956±5±10 MeV, 43±13±8 MeV, and JPC=0++, respectively, where the first uncertainties are statistical and the second systematic. The properties of the new structure are consistent with recent theoretical predictions for a state composed of cc¯ss¯ quarks. Evidence for an additional structure is found around 4140 MeV in the Ds+Ds- invariant mass, which might be caused either by a new resonance with the 0++ assignment or by a J/ψφ↔Ds+Ds- coupled-channel effect.

UR - http://www.scopus.com/inward/record.url?scp=85168818186&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85168818186&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.131.071901

DO - 10.1103/PhysRevLett.131.071901

M3 - Article

AN - SCOPUS:85168818186

SN - 0031-9007

VL - 131

SP - 1

EP - 12

JO - Physical review letters

JF - Physical review letters

IS - 7

M1 - 071901

ER -

Observation of a Resonant Structure near the Ds+ Ds- Threshold in the B+ → Ds+ Ds- K+ Decay

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