Observation of strangeness enhancement with charmed mesons in high-multiplicity pPb collisions at sNN =8.16 TeV

(LHCb Collaboration)

doi:10.1103/PhysRevD.110.L031105

Observation of strangeness enhancement with charmed mesons in high-multiplicity pPb collisions at sNN =8.16 TeV

(LHCb Collaboration)

National Institute for Subatomic Physics
University of Warwick
University of Zurich
University of Liverpool
Instituto Galego de Física de Altas Enerxías (IGFAE)
University of Bristol
Uppsala University
Université Clermont Auvergne
CERN
University of Michigan, Ann Arbor
University of Cincinnati
National Institute for Nuclear Physics
TU Dortmund University
University of Glasgow
University of Barcelona
University of Manchester
University of Cambridge
Sorbonne Université
Universidade Federal do Rio de Janeiro
Université Paris-Saclay
Peking University
Syracuse University
University of Chinese Academy of Sciences
University of Rome Tor Vergata
Consejo Nacional de Rectores (CONARE)
CPPM
Massachusetts Institute of Technology
Laboratoire Leprince-Ringuet
University of Oxford
Université Savoie Mont Blanc
Heidelberg University
Swiss Federal Institute of Technology Lausanne
Centro Brasileiro de Pesquisas Físicas
University of Florence
Pontifícia Universidade Católica do Rio de Janeiro
University of Edinburgh
RWTH Aachen University
Scuola Normale Superiore di Pisa
CAS - Institute of High Energy Physics
Ramon Llull University
University of Padua
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
Wuhan University
Imperial College London
Maastricht University
University of Ferrara
University of Milan - Bicocca
University of Maryland, College Park
South China Normal University
University of Bologna
University of Genoa
University of Milan
NASU - Institute of Nuclear Research
University of A Coruna
Horia Hulubei National Institute of Physics and Nuclear Engineering
National Autonomous University of Honduras
Los Alamos National Laboratory
Hunan University
University of Cagliari
University of Groningen
Centro Federal de Educação Tecnológica Celso Suckow da Fonseca
University of Bari
Central China Normal University
Eötvös Loránd University
Tsinghua University
University College Dublin
Cracow University of Technology
Rutherford Appleton Laboratory
University of Bonn
Monash University
University of Perugia
AGH University of Krakow
National Centre for Nuclear Research
Universidade de Brasília
University of Valencia
Universidad Nacional de Colombia
University of Birmingham
NASU - Kharkov Institute of Physics and Technology
Vrije Universiteit Amsterdam
University of Pisa
Lanzhou University
Central South University
Excellence Cluster ORIGINS
Departement de Physique Nucleaire (SPhN)
Division of Particle Physics
University of Basilicata
Max Planck Institute for Nuclear Physics
University of Siena
University of Alcalá
University of Urbino

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

9 Scopus citations

Abstract

The production of prompt Ds+ and D+ mesons is measured by the LHCb experiment in proton-lead (pPb) collisions in both the forward (1.5<y∗<4.0) and backward (-5.0<y∗<-2.5) rapidity regions at a nucleon-nucleon center-of-mass energy of sNN=8.16 TeV. The nuclear modification factors of both Ds+ and D+ mesons are determined as a function of transverse momentum, pT, and rapidity. In addition, the Ds+ to D+ cross section ratio is measured as a function of the primary charged particle multiplicity in the event. An enhanced Ds+ to D+ production in high-multiplicity events is observed for the whole measured pT range, in particular at low pT and backward rapidity, where the significance exceeds six standard deviations. This constitutes the first observation of strangeness enhancement in charm quark hadronization in high-multiplicity pPb collisions. The results are also qualitatively consistent with the presence of quark coalescence as an additional charm quark hadronization mechanism in high-multiplicity proton-lead collisions.

Original language	English
Article number	L031105
Journal	Physical Review D
Volume	110
Issue number	3
DOIs	https://doi.org/10.1103/PhysRevD.110.L031105
State	Published - 1 Aug 2024
Externally published	Yes

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10.1103/PhysRevD.110.L031105

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title = "Observation of strangeness enhancement with charmed mesons in high-multiplicity pPb collisions at sNN =8.16 TeV",

abstract = "The production of prompt Ds+ and D+ mesons is measured by the LHCb experiment in proton-lead (pPb) collisions in both the forward (1.5",

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 P. Adlarson and H. Afsharnia and C. Agapopoulou and Aidala, \{C. A.\} and Z. Ajaltouni and S. Akar and K. Akiba and P. Albicocco and J. Albrecht and F. Alessio and M. Alexander and \{Alfonso Albero\}, A. and Z. Aliouche and \{Alvarez Cartelle\}, P. and R. Amalric and S. Amato and Amey, \{J. L.\} and Y. Amhis and L. An and L. Anderlini and M. Andersson and A. Andreianov and P. Andreola and M. Andreotti and D. Andreou and D. Ao and F. Archilli and \{Arguedas Cuendis\}, S. and A. Artamonov and M. Artuso and E. Aslanides and M. Atzeni and B. Audurier and D. Bacher and \{Bachiller Perea\}, I. 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 \{Castro Godinez\}, J.",

note = "Publisher Copyright: {\textcopyright} 2024 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the {"}https://creativecommons.org/licenses/by/4.0/{"}Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.",

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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 - Adlarson, P.

AU - Afsharnia, H.

AU - Agapopoulou, C.

AU - Aidala, C. A.

AU - Ajaltouni, Z.

AU - Akar, S.

AU - Akiba, K.

AU - Albicocco, P.

AU - Albrecht, J.

AU - Alessio, F.

AU - Alexander, M.

AU - Alfonso Albero, A.

AU - Aliouche, Z.

AU - Alvarez Cartelle, P.

AU - Amalric, R.

AU - Amato, S.

AU - Amey, J. L.

AU - Amhis, Y.

AU - An, L.

AU - Anderlini, L.

AU - Andersson, M.

AU - Andreianov, A.

AU - Andreola, P.

AU - Andreotti, M.

AU - Andreou, D.

AU - Ao, D.

AU - Archilli, F.

AU - Arguedas Cuendis, S.

AU - Artamonov, A.

AU - Artuso, M.

AU - Aslanides, E.

AU - Atzeni, M.

AU - Audurier, B.

AU - Bacher, D.

AU - Bachiller Perea, I.

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 - Castro Godinez, J.

N1 - Publisher Copyright: © 2024 CERN, for the LHCb Collaboration. Published by the American Physical Society under the terms of the "https://creativecommons.org/licenses/by/4.0/"Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article's title, journal citation, and DOI. Funded by SCOAP3.

PY - 2024/8/1

Y1 - 2024/8/1

N2 - The production of prompt Ds+ and D+ mesons is measured by the LHCb experiment in proton-lead (pPb) collisions in both the forward (1.5

AB - The production of prompt Ds+ and D+ mesons is measured by the LHCb experiment in proton-lead (pPb) collisions in both the forward (1.5

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DO - 10.1103/PhysRevD.110.L031105

M3 - Artículo

AN - SCOPUS:85202732859

SN - 2470-0010

VL - 110

JO - Physical Review D

JF - Physical Review D

IS - 3

M1 - L031105

ER -

Observation of strangeness enhancement with charmed mesons in high-multiplicity pPb collisions at sNN =8.16 TeV

Abstract

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