Measurement of the Prompt D0 Nuclear Modification Factor in p-Pb Collisions at sNN =8.16 TeV

LHCb Collaboration

doi:10.1103/PhysRevLett.131.102301

Measurement of the Prompt D0 Nuclear Modification Factor in p-Pb Collisions at sNN =8.16 TeV

LHCb Collaboration

Department of Physics

Research output: Contribution to journal › Article › peer-review

10 Scopus citations

Abstract

The production of prompt D0 mesons in proton-lead collisions in both the forward and backward rapidity regions at a center-of-mass energy per nucleon pair of sNN=8.16 TeV is measured by the LHCb experiment. The nuclear modification factor of prompt D0 mesons is determined as a function of the transverse momentum pT, and the rapidity in the nucleon-nucleon center-of-mass frame y∗. In the forward rapidity region, significantly suppressed production with respect to pp collisions is measured, which provides significant constraints on models of nuclear parton distributions and hadron production down to the very low Bjorken-x region of ∼10-5. In the backward rapidity region, a suppression with a significance of 2.0-3.8 standard deviations compared to parton distribution functions in a nuclear environment expectations is found in the kinematic region of pT>6 GeV/c and -3.25<y∗<-2.5, corresponding to x∼0.01.

Original language	English (US)
Article number	102301
Journal	Physical Review Letters
Volume	131
Issue number	10
DOIs	https://doi.org/10.1103/PhysRevLett.131.102301
State	Published - Sep 8 2023

ASJC Scopus subject areas

General Physics and Astronomy

Access to Document

10.1103/PhysRevLett.131.102301

Cite this

@article{08a60c61ed174b2584c7c68a88181337,

title = "Measurement of the Prompt D0 Nuclear Modification Factor in p-Pb Collisions at sNN =8.16 TeV",

abstract = "The production of prompt D0 mesons in proton-lead collisions in both the forward and backward rapidity regions at a center-of-mass energy per nucleon pair of sNN=8.16 TeV is measured by the LHCb experiment. The nuclear modification factor of prompt D0 mesons is determined as a function of the transverse momentum pT, and the rapidity in the nucleon-nucleon center-of-mass frame y∗. In the forward rapidity region, significantly suppressed production with respect to pp collisions is measured, which provides significant constraints on models of nuclear parton distributions and hadron production down to the very low Bjorken-x region of ∼10-5. In the backward rapidity region, a suppression with a significance of 2.0-3.8 standard deviations compared to parton distribution functions in a nuclear environment expectations is found in the kinematic region of pT>6 GeV/c and -3.25",

author = "{LHCb Collaboration} and 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 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 S. Blusk and Rudolph, {M. S.} and {Silva Coutinho}, R. and T. Skwarnicki and S. Stone",

note = "Publisher Copyright: {\textcopyright} 2023 CERN.",

year = "2023",

month = sep,

day = "8",

doi = "10.1103/PhysRevLett.131.102301",

language = "English (US)",

volume = "131",

journal = "Physical Review Letters",

issn = "0031-9007",

publisher = "American Physical Society",

number = "10",

}

TY - JOUR

T1 - Measurement of the Prompt D0 Nuclear Modification Factor in p-Pb Collisions at sNN =8.16 TeV

AU - LHCb Collaboration

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 - 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 - Blusk, S.

AU - Rudolph, M. S.

AU - Silva Coutinho, R.

AU - Skwarnicki, T.

AU - Stone, S.

PY - 2023/9/8

Y1 - 2023/9/8

N2 - The production of prompt D0 mesons in proton-lead collisions in both the forward and backward rapidity regions at a center-of-mass energy per nucleon pair of sNN=8.16 TeV is measured by the LHCb experiment. The nuclear modification factor of prompt D0 mesons is determined as a function of the transverse momentum pT, and the rapidity in the nucleon-nucleon center-of-mass frame y∗. In the forward rapidity region, significantly suppressed production with respect to pp collisions is measured, which provides significant constraints on models of nuclear parton distributions and hadron production down to the very low Bjorken-x region of ∼10-5. In the backward rapidity region, a suppression with a significance of 2.0-3.8 standard deviations compared to parton distribution functions in a nuclear environment expectations is found in the kinematic region of pT>6 GeV/c and -3.25

AB - The production of prompt D0 mesons in proton-lead collisions in both the forward and backward rapidity regions at a center-of-mass energy per nucleon pair of sNN=8.16 TeV is measured by the LHCb experiment. The nuclear modification factor of prompt D0 mesons is determined as a function of the transverse momentum pT, and the rapidity in the nucleon-nucleon center-of-mass frame y∗. In the forward rapidity region, significantly suppressed production with respect to pp collisions is measured, which provides significant constraints on models of nuclear parton distributions and hadron production down to the very low Bjorken-x region of ∼10-5. In the backward rapidity region, a suppression with a significance of 2.0-3.8 standard deviations compared to parton distribution functions in a nuclear environment expectations is found in the kinematic region of pT>6 GeV/c and -3.25

UR - http://www.scopus.com/inward/record.url?scp=85172176090&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85172176090&partnerID=8YFLogxK

U2 - 10.1103/PhysRevLett.131.102301

DO - 10.1103/PhysRevLett.131.102301

M3 - Article

C2 - 37739372

AN - SCOPUS:85172176090

SN - 0031-9007

VL - 131

JO - Physical Review Letters

JF - Physical Review Letters

IS - 10

M1 - 102301

ER -

Measurement of the Prompt D0 Nuclear Modification Factor in p-Pb Collisions at sNN =8.16 TeV

Abstract

ASJC Scopus subject areas

Access to Document

Other files and links

Fingerprint

Cite this