Measurement of Charged Hadron Production in Z -Tagged Jets in Proton-Proton Collisions at s =8 TeV

LHCb Collaboration

doi:10.1103/PhysRevLett.123.232001

Measurement of Charged Hadron Production in Z -Tagged Jets in Proton-Proton Collisions at s =8 TeV

LHCb Collaboration

(Astro)-Particles Physics

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

Abstract

The production of charged hadrons within jets recoiling against a Z boson is measured in proton-proton collision data at s=8 TeV recorded by the LHCb experiment. The charged-hadron structure of the jet is studied longitudinally and transverse to the jet axis for jets with transverse momentum pT>20 GeV and in the pseudorapidity range 2.5<η<4. These are the first measurements of jet hadronization at these forward rapidities and also the first where the jet is produced in association with a Z boson. In contrast to previous hadronization measurements at the Large Hadron Collider, which are dominated by gluon jets, these measurements probe predominantly light-quark jets which are found to be more longitudinally and transversely collimated with respect to the jet axis when compared to the previous gluon dominated measurements. Therefore, these results provide valuable information on differences between quarks and gluons regarding nonperturbative hadronization dynamics.

Original language	English
Article number	232001
Pages (from-to)	1-11
Number of pages	11
Journal	Physical Review Letters
Volume	123
Issue number	23
DOIs	https://doi.org/10.1103/PhysRevLett.123.232001
Publication status	Published - 4 Dec 2019

Access to Document

10.1103/PhysRevLett.123.232001

Cite this

@article{f60a8b52d0b8486995179ab6bda1e4ae,

title = "Measurement of Charged Hadron Production in Z -Tagged Jets in Proton-Proton Collisions at s =8 TeV",

abstract = "The production of charged hadrons within jets recoiling against a Z boson is measured in proton-proton collision data at s=8 TeV recorded by the LHCb experiment. The charged-hadron structure of the jet is studied longitudinally and transverse to the jet axis for jets with transverse momentum pT>20 GeV and in the pseudorapidity range 2.5<η<4. These are the first measurements of jet hadronization at these forward rapidities and also the first where the jet is produced in association with a Z boson. In contrast to previous hadronization measurements at the Large Hadron Collider, which are dominated by gluon jets, these measurements probe predominantly light-quark jets which are found to be more longitudinally and transversely collimated with respect to the jet axis when compared to the previous gluon dominated measurements. Therefore, these results provide valuable information on differences between quarks and gluons regarding nonperturbative hadronization dynamics.",

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 Butter, {J. S.} 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 {Cid Vidal}, X. 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'Occo and J. Dalseno and C. D'Ambrosio and A. Danilina and P. D'Argent and A. Davis and {De Aguiar Francisco}, O. and {De Bruyn}, K. and {De Capua}, S. and {De Cian}, M. and {De Miranda}, {J. M.} and {De Paula}, L. and {De Serio}, M. and {De Simone}, P. and {De Vries}, {J. A.} and Dean, {C. T.} and W. Dean and D. Decamp and {Del Buono}, L. and B. Delaney and Dembinski, {H. P.} and M. Demmer and A. Dendek and D. Derkach and O. Deschamps and F. Desse and F. Dettori and B. Dey and {Di Canto}, A. and {Di Nezza}, P. and S. Didenko and H. Dijkstra and F. Dordei and M. Dorigo and {Dos Reis}, {A. C.} and {Dosil Su{\'a}rez}, A. and L. Douglas and A. Dovbnya and K. Dreimanis and L. Dufour and G. Dujany and P. Durante and Durham, {J. M.} and D. Dutta and R. Dzhelyadin and M. Dziewiecki and A. Dziurda and A. Dzyuba and S. Easo and U. Egede and V. Egorychev and S. Eidelman and S. Eisenhardt and U. Eitschberger and R. Ekelhof and L. Eklund and S. Ely and A. Ene and S. Escher and S. Esen and T. Evans and A. Falabella and C. F{\"a}rber and N. Farley and S. Farry and D. Fazzini and M. F{\'e}o and {Fernandez Declara}, P. and {Fernandez Prieto}, A. and F. 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year = "2019",

month = dec,

day = "4",

doi = "10.1103/PhysRevLett.123.232001",

language = "English",

volume = "123",

pages = "1--11",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "23",

}

TY - JOUR

T1 - Measurement of Charged Hadron Production in Z -Tagged Jets in Proton-Proton Collisions at s =8 TeV

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.

AU - Bifani, S.

AU - Billoir, P.

AU - Birnkraut, A.

AU - Bizzeti, A.

AU - Bjørn, M.

AU - Blago, M. P.

AU - Blake, T.

AU - Blanc, F.

AU - Blusk, S.

AU - Bobulska, D.

AU - Bocci, V.

AU - Boente Garcia, O.

AU - Boettcher, T.

AU - Bondar, A.

AU - Bondar, N.

AU - Borghi, S.

AU - Borisyak, M.

AU - Borsato, M.

AU - Boubdir, M.

AU - Bowcock, T. J.V.

AU - Bozzi, C.

AU - Braun, S.

AU - Brodski, M.

AU - Brodzicka, J.

AU - Brossa Gonzalo, A.

AU - Brundu, D.

AU - Buchanan, E.

AU - Buonaura, A.

AU - Burr, C.

AU - Bursche, A.

AU - Butter, J. S.

AU - Buytaert, J.

AU - Byczynski, W.

AU - Cadeddu, S.

AU - Cai, H.

AU - Calabrese, R.

AU - Cali, S.

AU - Calladine, R.

AU - Calvi, M.

AU - Calvo Gomez, M.

AU - Camboni, A.

AU - Campana, P.

AU - Campora Perez, D. H.

AU - Capriotti, L.

AU - Carbone, A.

AU - Carboni, G.

AU - Cardinale, R.

AU - Cardini, A.

AU - Carniti, P.

AU - Carvalho Akiba, K.

AU - Casse, G.

AU - Cattaneo, M.

AU - Cavallero, G.

AU - Cenci, R.

AU - Chapman, M. G.

AU - Charles, M.

AU - Charpentier, Ph

AU - Chatzikonstantinidis, G.

AU - Chefdeville, M.

AU - Chekalina, V.

AU - Chen, C.

AU - Chen, S.

AU - Chitic, S. G.

AU - Chobanova, V.

AU - Chrzaszcz, M.

AU - Chubykin, A.

AU - Ciambrone, P.

AU - Cid Vidal, X.

AU - Ciezarek, G.

AU - Cindolo, F.

AU - Clarke, P. E.L.

AU - Clemencic, M.

AU - Cliff, H. V.

AU - Closier, J.

AU - Coco, V.

AU - Coelho, J. A.B.

AU - Cogan, J.

AU - Cogneras, E.

AU - Cojocariu, L.

AU - Collins, P.

AU - Colombo, T.

AU - Comerma-Montells, A.

AU - Contu, A.

AU - Coombs, G.

AU - Coquereau, S.

AU - Corti, G.

AU - Costa Sobral, C. M.

AU - Couturier, B.

AU - Cowan, G. A.

AU - Craik, D. C.

AU - Crocombe, A.

AU - Cruz Torres, M.

AU - Currie, R.

AU - Da Silva, C. L.

AU - Dall'Occo, E.

AU - Dalseno, J.

AU - D'Ambrosio, C.

AU - Danilina, A.

AU - D'Argent, P.

AU - Davis, A.

AU - De Aguiar Francisco, O.

AU - De Bruyn, K.

AU - De Capua, S.

AU - De Cian, M.

AU - De Miranda, J. M.

AU - De Paula, L.

AU - De Serio, M.

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AU - Zhukov, V.

AU - Zonneveld, J. B.

AU - Zucchelli, S.

AU - LHCb Collaboration

PY - 2019/12/4

Y1 - 2019/12/4

N2 - The production of charged hadrons within jets recoiling against a Z boson is measured in proton-proton collision data at s=8 TeV recorded by the LHCb experiment. The charged-hadron structure of the jet is studied longitudinally and transverse to the jet axis for jets with transverse momentum pT>20 GeV and in the pseudorapidity range 2.5<η<4. These are the first measurements of jet hadronization at these forward rapidities and also the first where the jet is produced in association with a Z boson. In contrast to previous hadronization measurements at the Large Hadron Collider, which are dominated by gluon jets, these measurements probe predominantly light-quark jets which are found to be more longitudinally and transversely collimated with respect to the jet axis when compared to the previous gluon dominated measurements. Therefore, these results provide valuable information on differences between quarks and gluons regarding nonperturbative hadronization dynamics.

AB - The production of charged hadrons within jets recoiling against a Z boson is measured in proton-proton collision data at s=8 TeV recorded by the LHCb experiment. The charged-hadron structure of the jet is studied longitudinally and transverse to the jet axis for jets with transverse momentum pT>20 GeV and in the pseudorapidity range 2.5<η<4. These are the first measurements of jet hadronization at these forward rapidities and also the first where the jet is produced in association with a Z boson. In contrast to previous hadronization measurements at the Large Hadron Collider, which are dominated by gluon jets, these measurements probe predominantly light-quark jets which are found to be more longitudinally and transversely collimated with respect to the jet axis when compared to the previous gluon dominated measurements. Therefore, these results provide valuable information on differences between quarks and gluons regarding nonperturbative hadronization dynamics.

UR - http://www.scopus.com/inward/record.url?scp=85076638764&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85076638764&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.123.232001

DO - 10.1103/PhysRevLett.123.232001

M3 - Article

C2 - 31868452

AN - SCOPUS:85076638764

VL - 123

SP - 1

EP - 11

JO - Physical Review Letters

JF - Physical Review Letters

SN - 0031-9007

IS - 23

M1 - 232001

ER -

Measurement of Charged Hadron Production in Z -Tagged Jets in Proton-Proton Collisions at s =8 TeV

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