Near-threshold D(Formula presented.) spectroscopy and observation of a new charmonium state

The Lhcb Collaboration

doi:10.1007/JHEP07(2019)035

Near-threshold D(Formula presented.) spectroscopy and observation of a new charmonium state

The Lhcb Collaboration

(Astro)-Particles Physics

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

Abstract

Using proton-proton collision data, corresponding to an integrated luminosity of 9 fb⁻¹, collected with the LHCb detector between 2011 and 2018, a new narrow charmonium state, the X(3842) resonance, is observed in the decay modes X (3842) → DD¯ and X(3842) → D⁺D⁻. The mass and the natural width of this state are measured to be mX(3842)=3842.71±0.16±0.12MeV/c2,ΓX(3842)=2.79±0.51±0.35MeV, where the first uncertainty is statistical and the second is systematic. The observed mass and narrow natural width suggest the interpretation of the new state as the unobserved (spin-3 ψ₃ 1³D₃) charmonium state. In addition, prompt hadroproduction of the ψ(3770) and χ₂(3930) states is observed for the first time, and the parameters of these states are measured to be mψ(3770)=3778.1±0.7±0.6MeV/c2,mχ2(3930)=3921.9±0.6±0.2MeV/c2,Γχ2(3930)=36.6±1.9±0.9MeV, where the first uncertainty is statistical and the second is systematic.[Figure not available: see fulltext.].

Original language	English
Article number	35
Journal	Journal of High Energy Physics
Volume	2019
Issue number	7
DOIs	https://doi.org/10.1007/JHEP07(2019)035
Publication status	Published - 1 Jul 2019

Funding

Charm physics Hadron-Hadron scattering (experiments) Heavy quark production Quarkonium publisher-imprint-name Springer volume-issue-count 12 issue-article-count 44 issue-toc-levels 0 issue-copyright-holder SISSA, Trieste, Italy issue-copyright-year 2019 article-contains-esm No article-numbering-style ContentOnly article-registration-date-year 2019 article-registration-date-month 7 article-registration-date-day 8 article-toc-levels 0 toc-levels 0 volume-type Regular journal-product ArchiveJournal numbering-style Unnumbered article-grants-type OpenChoice metadata-grant OpenAccess abstract-grant OpenAccess bodypdf-grant OpenAccess bodyhtml-grant OpenAccess bibliography-grant OpenAccess esm-grant OpenAccess online-first false pdf-file-reference BodyRef/PDF/13130_2019_Article_10857.pdf target-type OnlinePDF issue-type Regular article-type OriginalPaper journal-subject-primary Physics journal-subject-secondary Elementary Particles, Quantum Field Theory journal-subject-secondary Quantum Field Theories, String Theory journal-subject-secondary Classical and Quantum Gravitation, Relativity Theory journal-subject-secondary Quantum Physics journal-subject-collection Physics and Astronomy open-access true A r X iv e P rint : 1903.12240 Deceased (R. Dzhelyadin) A. Hicheur, C. Göbel and V. Salustino Guimaraes are associated to Universidade Federal do Rio de Janeiro (UFRJ), Rio de Janeiro, Brazil H. Li, G. Liu, H. Xing, H. Cai, L. Sun, B. Dey, Q. Han, W. Hu, M. Mukherjee, Y. Wang, D. Xiao, Y. Xie, M. Xu, H. Yin, J. Yu and D. Zhang are associated to Center for High Energy Physics, Tsinghua University, Beijing, China D. A. Milanes, I. A. Monroy and J. A. Rodriguez Lopez are associated to LPNHE, Sorbonne Université, Paris Diderot Sorbonne Paris Cité, CNRS/IN2P3, Paris, France M. Heß, N. Meinert, H. Viemann and R. Waldi are associated to Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Heidelberg, Germany C. J. G. Onderwater is associated to Nikhef National Institute for Subatomic Physics, Amsterdam, Netherlands T. Likhomanenko, A. Malinin, A. Petrov, V. Shevchenko, F. Baryshnikov, S. Didenko, A. Golutvin, N. Polukhina, E. Shmanin, A. Kharisova, G. Panshin, S. Strokov and A. Vagner are associated to Institute of Theoretical and Experimental Physics NRC Kurchatov Institute (ITEP NRC KI), Moscow, Russia D. Derkach, M. Hushchyn, N. Kazeev, F. Ratnikov and A. Ustyuzhanin are associated to Yandex School of Data Analysis, Moscow, Russia L. M. Garcia Martin, L. Henry, B. K. Jashal, F. Martinez Vidal, A. Oyanguren, C. Remon Alepuz, J. Ruiz Vidal and C. Sanchez Mayordomo are associated to ICCUB, Universitat de Barcelona, Barcelona, Spain C. A. Aidala, W. Dean, K. R. Mattioli, J. D. Osborn, J. D. Roth, C. L. Da Silva, J. M. Durham, G. J. Kunde, X. Li, and H. Van Hecke are associated to Syracuse University, Syracuse, NY, United States

Keywords

Charm physics
Hadron-Hadron scattering (experiments)
Heavy quark production
Quarkonium

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10.1007/JHEP07(2019)035

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Cite this

@article{27cbba820d0a4feb971d74ecd6f6cdec,

title = "Near-threshold D(Formula presented.) spectroscopy and observation of a new charmonium state",

abstract = "Using proton-proton collision data, corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector between 2011 and 2018, a new narrow charmonium state, the X(3842) resonance, is observed in the decay modes X (3842) → DD¯ and X(3842) → D+D−. The mass and the natural width of this state are measured to be mX(3842)=3842.71±0.16±0.12MeV/c2,ΓX(3842)=2.79±0.51±0.35MeV, where the first uncertainty is statistical and the second is systematic. The observed mass and narrow natural width suggest the interpretation of the new state as the unobserved (spin-3 ψ3 13D3) charmonium state. In addition, prompt hadroproduction of the ψ(3770) and χ2(3930) states is observed for the first time, and the parameters of these states are measured to be mψ(3770)=3778.1±0.7±0.6MeV/c2,mχ2(3930)=3921.9±0.6±0.2MeV/c2,Γχ2(3930)=36.6±1.9±0.9MeV, where the first uncertainty is statistical and the second is systematic.[Figure not available: see fulltext.].",

keywords = "Charm physics, Hadron-Hadron scattering (experiments), Heavy quark production, Quarkonium",

author = "R. Aaij and {Abell{\'a}n Beteta}, C. and B. Adeva and M. Adinolfi and Aidala, {C. A.} and Z. Ajaltouni and S. Akar and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and {Alfonso Albero}, A. and G. Alkhazov and {Alvarez Cartelle}, P. and Alves, {A. A.} and S. Amato and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, {J. E.} and F. Archilli and {Arnau Romeu}, J. and A. Artamonov and M. Artuso and K. Arzymatov and E. Aslanides and M. Atzeni and B. Audurier and S. Bachmann and Back, {J. J.} and S. Baker and V. Balagura and W. Baldini and A. Baranov and Barlow, {R. J.} and S. Barsuk and W. Barter and M. Bartolini and F. Baryshnikov and V. Batozskaya and B. Batsukh and A. Battig and V. Battista and A. Bay and F. Bedeschi and I. Bediaga and A. Beiter and Bel, {L. J.} and S. Belin and N. Beliy and V. Bellee and N. Belloli and K. Belous and I. Belyaev and G. Bencivenni and E. Ben-Haim and S. Benson and S. Beranek and A. Berezhnoy and R. Bernet and D. Berninghoff and E. Bertholet and A. Bertolin and C. Betancourt and F. Betti and Bettler, {M. O.} and Ia Bezshyiko and S. Bhasin and J. Bhom and Bieker, {M. S.} and S. Bifani and P. Billoir and A. Birnkraut and A. Bizzeti and M. Bj{\o}rn and Blago, {M. P.} and T. Blake and F. Blanc and S. Blusk and D. Bobulska and V. Bocci and {Boente Garcia}, O. and T. Boettcher and A. Bondar and N. Bondar and S. Borghi and M. Borisyak and M. Borsato and M. Boubdir and Bowcock, {T. J.V.} and C. Bozzi and S. Braun and M. Brodski and J. Brodzicka and {Brossa Gonzalo}, A. and D. Brundu and E. Buchanan and A. Buonaura and C. Burr and A. Bursche and J. Buytaert and W. Byczynski and S. Cadeddu and H. Cai and R. Calabrese and S. Cali and R. Calladine and M. Calvi and {Calvo Gomez}, M. and A. Camboni and P. Campana and {Campora Perez}, {D. H.} and L. Capriotti and A. Carbone and G. Carboni and R. Cardinale and A. Cardini and P. Carniti and {Carvalho Akiba}, K. and G. Casse and M. Cattaneo and G. Cavallero and R. Cenci and Chapman, {M. G.} and M. Charles and Ph Charpentier and G. Chatzikonstantinidis and M. Chefdeville and V. Chekalina and C. Chen and S. Chen and Chitic, {S. G.} and V. Chobanova and M. Chrzaszcz and A. Chubykin and P. Ciambrone and Vidal, {X. Cid} and G. Ciezarek and F. Cindolo and Clarke, {P. E.L.} and M. Clemencic and Cliff, {H. V.} and J. Closier and V. Coco and Coelho, {J. A.B.} and J. Cogan and E. Cogneras and L. Cojocariu and P. Collins and T. Colombo and A. Comerma-Montells and A. Contu and G. Coombs and S. Coquereau and G. Corti and {Costa Sobral}, {C. M.} and B. Couturier and Cowan, {G. A.} and Craik, {D. C.} and A. Crocombe and {Cruz Torres}, M. and R. Currie and {Da Silva}, {C. L.} and E. Dall{\textquoteright}Occo and J. Dalseno and C. D{\textquoteright}Ambrosio and A. Danilina and P. d{\textquoteright}Argent and A. 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A.} and K. Wyllie and D. Xiao and Y. Xie and H. Xing and A. Xu and M. Xu and Q. Xu and Z. Xu and Z. Xu and Z. Yang and Z. Yang and Y. Yao and Yeomans, {L. E.} and H. Yin and J. Yu and X. Yuan and O. Yushchenko and Zarebski, {K. A.} and M. Zavertyaev and M. Zeng and D. Zhang and L. Zhang and Zhang, {W. C.} and Y. Zhang and A. Zhelezov and Y. Zheng and X. Zhu and V. Zhukov and Zonneveld, {J. B.} and S. Zucchelli and {The Lhcb Collaboration}",

year = "2019",

month = jul,

day = "1",

doi = "10.1007/JHEP07(2019)035",

language = "English",

volume = "2019",

journal = "Journal of High Energy Physics",

issn = "1126-6708",

publisher = "Springer Verlag",

number = "7",

}

TY - JOUR

T1 - Near-threshold D(Formula presented.) spectroscopy and observation of a new charmonium state

AU - Aaij, R.

AU - Abellán Beteta, C.

AU - Adeva, B.

AU - Adinolfi, M.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Archilli, F.

AU - Arnau Romeu, J.

AU - Artamonov, A.

AU - Artuso, M.

AU - Arzymatov, K.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bachmann, S.

AU - Back, J. J.

AU - Baker, S.

AU - Balagura, V.

AU - Baldini, W.

AU - Baranov, A.

AU - Barlow, R. J.

AU - Barsuk, S.

AU - Barter, W.

AU - Bartolini, M.

AU - Baryshnikov, F.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battig, A.

AU - Battista, V.

AU - Bay, A.

AU - Bedeschi, F.

AU - Bediaga, I.

AU - Beiter, A.

AU - Bel, L. J.

AU - Belin, S.

AU - Beliy, N.

AU - Bellee, V.

AU - Belloli, N.

AU - Belous, K.

AU - Belyaev, I.

AU - Bencivenni, G.

AU - Ben-Haim, E.

AU - Benson, S.

AU - Beranek, S.

AU - Berezhnoy, A.

AU - Bernet, R.

AU - Berninghoff, D.

AU - Bertholet, E.

AU - Bertolin, A.

AU - Betancourt, C.

AU - Betti, F.

AU - Bettler, M. O.

AU - Bezshyiko, Ia

AU - Bhasin, S.

AU - Bhom, J.

AU - Bieker, M. S.

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AU - The Lhcb Collaboration

PY - 2019/7/1

Y1 - 2019/7/1

N2 - Using proton-proton collision data, corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector between 2011 and 2018, a new narrow charmonium state, the X(3842) resonance, is observed in the decay modes X (3842) → DD¯ and X(3842) → D+D−. The mass and the natural width of this state are measured to be mX(3842)=3842.71±0.16±0.12MeV/c2,ΓX(3842)=2.79±0.51±0.35MeV, where the first uncertainty is statistical and the second is systematic. The observed mass and narrow natural width suggest the interpretation of the new state as the unobserved (spin-3 ψ3 13D3) charmonium state. In addition, prompt hadroproduction of the ψ(3770) and χ2(3930) states is observed for the first time, and the parameters of these states are measured to be mψ(3770)=3778.1±0.7±0.6MeV/c2,mχ2(3930)=3921.9±0.6±0.2MeV/c2,Γχ2(3930)=36.6±1.9±0.9MeV, where the first uncertainty is statistical and the second is systematic.[Figure not available: see fulltext.].

AB - Using proton-proton collision data, corresponding to an integrated luminosity of 9 fb−1, collected with the LHCb detector between 2011 and 2018, a new narrow charmonium state, the X(3842) resonance, is observed in the decay modes X (3842) → DD¯ and X(3842) → D+D−. The mass and the natural width of this state are measured to be mX(3842)=3842.71±0.16±0.12MeV/c2,ΓX(3842)=2.79±0.51±0.35MeV, where the first uncertainty is statistical and the second is systematic. The observed mass and narrow natural width suggest the interpretation of the new state as the unobserved (spin-3 ψ3 13D3) charmonium state. In addition, prompt hadroproduction of the ψ(3770) and χ2(3930) states is observed for the first time, and the parameters of these states are measured to be mψ(3770)=3778.1±0.7±0.6MeV/c2,mχ2(3930)=3921.9±0.6±0.2MeV/c2,Γχ2(3930)=36.6±1.9±0.9MeV, where the first uncertainty is statistical and the second is systematic.[Figure not available: see fulltext.].

KW - Charm physics

KW - Hadron-Hadron scattering (experiments)

KW - Heavy quark production

KW - Quarkonium

UR - http://www.scopus.com/inward/record.url?scp=85068784458&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85068784458&partnerID=8YFLogxK

U2 - 10.1007/JHEP07(2019)035

DO - 10.1007/JHEP07(2019)035

M3 - Article

AN - SCOPUS:85068784458

SN - 1126-6708

VL - 2019

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 7

M1 - 35

ER -

Near-threshold D(Formula presented.) spectroscopy and observation of a new charmonium state

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