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<-2.5, corresponding to x∼0.01. © 2023 CERN.

Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of the Prompt D0 Nuclear Modification Factor in p-Pb Collisions at sNN =8.16 TeV. PHYSICAL REVIEW LETTERS, 131(10) [10.1103/PhysRevLett.131.102301].

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

Archilli, F.;Santovetti, E.;
2023-09-06

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<-2.5, corresponding to x∼0.01. © 2023 CERN.
6-set-2023
Pubblicato
Rilevanza internazionale
Articolo
Esperti anonimi
Settore FIS/01
English
Con Impact Factor ISI
Collective flow; Hard scattering; Jets &amp; heavy flavor physics; Particle correlations &amp; fluctuations; Quark-gluon plasma; Relativistic heavy-ion collisions
https://www.scopus.com/inward/record.uri?eid=2-s2.0-85172176090&doi=10.1103/PhysRevLett.131.102301&partnerID=40&md5=384cf0ffe496b463b115d41ad5b19b9a
Aaij, R., Abdelmotteleb, A., Abellan Beteta, C., Abudinén, F., Ackernley, T., Adeva, B., et al. (2023). Measurement of the Prompt D0 Nuclear Modification Factor in p-Pb Collisions at sNN =8.16 TeV. PHYSICAL REVIEW LETTERS, 131(10) [10.1103/PhysRevLett.131.102301].
Aaij, R; Abdelmotteleb, Asw; Abellan Beteta, C; Abudinén, F; Ackernley, T; Adeva, B; Adinolfi, M; Afsharnia, H; Agapopoulou, C; Aidala, Ca; Aiola, S;...espandi
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/2108/351431
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