First Measurement of Charm Production in its Fixed-Target Configuration at the LHC

LHCb Collaboration

doi:10.1103/PhysRevLett.122.132002

First Measurement of Charm Production in its Fixed-Target Configuration at the LHC

LHCb Collaboration

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Abstract

The first measurement of heavy-flavor production by the LHCb experiment in its fixed-target mode is presented. The production of J/ψ and D0 mesons is studied with beams of protons of different energies colliding with gaseous targets of helium and argon with nucleon-nucleon center-of-mass energies of sNN=86.6 and 110.4 GeV, respectively. The J/ψ and D0 production cross sections in pHe collisions in the rapidity range [2, 4.6] are found to be σJ/ψ=652±33(stat)±42(syst) nb/nucleon and σD0=80.8±2.4(stat)±6.3(syst) μb/nucleon, where the first uncertainty is statistical and the second is systematic. No evidence for a substantial intrinsic charm content of the nucleon is observed in the large Bjorken-x region.

Original language	English
Article number	132002
Journal	Physical Review Letters
Volume	122
Issue number	13
DOIs	https://doi.org/10.1103/PhysRevLett.122.132002
Publication status	Published - 2 Apr 2019

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10.1103/PhysRevLett.122.132002

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@article{9cb19e739d4349d09082d30fcf65792c,

title = "First Measurement of Charm Production in its Fixed-Target Configuration at the LHC",

abstract = "The first measurement of heavy-flavor production by the LHCb experiment in its fixed-target mode is presented. The production of J/ψ and D0 mesons is studied with beams of protons of different energies colliding with gaseous targets of helium and argon with nucleon-nucleon center-of-mass energies of sNN=86.6 and 110.4 GeV, respectively. The J/ψ and D0 production cross sections in pHe collisions in the rapidity range [2, 4.6] are found to be σJ/ψ=652±33(stat)±42(syst) nb/nucleon and σD0=80.8±2.4(stat)±6.3(syst) μb/nucleon, where the first uncertainty is statistical and the second is systematic. No evidence for a substantial intrinsic charm content of the nucleon is observed in the large Bjorken-x region.",

author = "\{LHCb Collaboration\} and R. Aaij 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 S. Ali and G. Alkhazov and \{Alvarez Cartelle\}, P. and Alves, \{A. A.\} and S. Amato and S. Amerio and Y. Amhis and L. An and L. Anderlini and G. Andreassi and M. Andreotti and Andrews, \{J. E.\} and Appleby, \{R. B.\} and F. Archilli and P. D'Argent 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 F. Baryshnikov and V. Batozskaya and B. Batsukh and V. Battista and A. Bay and J. Beddow and F. Fleuret and E. Maurice",

note = "Publisher Copyright: {\textcopyright} 2019 CERN. for the LHCb Collaboration.",

year = "2019",

month = apr,

day = "2",

doi = "10.1103/PhysRevLett.122.132002",

language = "English",

volume = "122",

journal = "Physical Review Letters",

issn = "0031-9007",

number = "13",

}

TY - JOUR

T1 - First Measurement of Charm Production in its Fixed-Target Configuration at the LHC

AU - LHCb Collaboration

AU - Aaij, R.

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 - Ali, S.

AU - Alkhazov, G.

AU - Alvarez Cartelle, P.

AU - Alves, A. A.

AU - Amato, S.

AU - Amerio, S.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andreassi, G.

AU - Andreotti, M.

AU - Andrews, J. E.

AU - Appleby, R. B.

AU - Archilli, F.

AU - D'Argent, P.

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 - Baryshnikov, F.

AU - Batozskaya, V.

AU - Batsukh, B.

AU - Battista, V.

AU - Bay, A.

AU - Beddow, J.

AU - Fleuret, F.

AU - Maurice, E.

PY - 2019/4/2

Y1 - 2019/4/2

N2 - The first measurement of heavy-flavor production by the LHCb experiment in its fixed-target mode is presented. The production of J/ψ and D0 mesons is studied with beams of protons of different energies colliding with gaseous targets of helium and argon with nucleon-nucleon center-of-mass energies of sNN=86.6 and 110.4 GeV, respectively. The J/ψ and D0 production cross sections in pHe collisions in the rapidity range [2, 4.6] are found to be σJ/ψ=652±33(stat)±42(syst) nb/nucleon and σD0=80.8±2.4(stat)±6.3(syst) μb/nucleon, where the first uncertainty is statistical and the second is systematic. No evidence for a substantial intrinsic charm content of the nucleon is observed in the large Bjorken-x region.

AB - The first measurement of heavy-flavor production by the LHCb experiment in its fixed-target mode is presented. The production of J/ψ and D0 mesons is studied with beams of protons of different energies colliding with gaseous targets of helium and argon with nucleon-nucleon center-of-mass energies of sNN=86.6 and 110.4 GeV, respectively. The J/ψ and D0 production cross sections in pHe collisions in the rapidity range [2, 4.6] are found to be σJ/ψ=652±33(stat)±42(syst) nb/nucleon and σD0=80.8±2.4(stat)±6.3(syst) μb/nucleon, where the first uncertainty is statistical and the second is systematic. No evidence for a substantial intrinsic charm content of the nucleon is observed in the large Bjorken-x region.

UR - https://www.scopus.com/pages/publications/85064049688

U2 - 10.1103/PhysRevLett.122.132002

DO - 10.1103/PhysRevLett.122.132002

M3 - Article

C2 - 31012627

AN - SCOPUS:85064049688

SN - 0031-9007

VL - 122

JO - Physical Review Letters

JF - Physical Review Letters

IS - 13

M1 - 132002

ER -

First Measurement of Charm Production in its Fixed-Target Configuration at the LHC

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