Constraining hadronization mechanisms with Λc+/D0 production ratios in Pb–Pb collisions at sNN=5.02 TeV

ALICE Collaboration

doi:10.1016/j.physletb.2023.137796

Constraining hadronization mechanisms with Λ_c⁺/D⁰ production ratios in Pb–Pb collisions at s_NN=5.02 TeV

ALICE Collaboration

Sección de Física

Variable Energy Cyclotron Centre
Czech Academy of Sciences
Goethe University Frankfurt
University of Lund
CERN
Sezione INFN
National Institute for Nuclear Physics
Aligarh Muslim University
Korea Institute of Science and Technology Information
Pavol Jozef Šafárik University
Indonesian Institute of Sciences
Alikhanov Institute for Theoretical and Experimental Physics
GSI Helmholtzzentrum für Schwerionenforschung
Russian Research Centre Kurchatov Institute
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
St. Petersburg State University
National Institute for Physics and Nuclear Engineering
National Institute for Subatomic Physics
University of Münster
Ruprecht-Karls-Universität Heidelberg
Lawrence Berkeley National Laboratory
Nantes Université
University of Oslo
Yale University
Laboratoire de Physique des 2 Infinis Irène Joliot-Curie
Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN
Gangneung-Wonju National University
University of Science and Technology of China
Indian Institute of Technology Indore
University of Jammu
CNRS-IN2P3
AGH University of Krakow
Bose Institute
University of Catania
Technical University of Munich
National and Kapodistrian University of Athens
Wigner Research Centre for Physics
STFC Daresbury Laboratory
Université Clermont Auvergne
University of Liverpool
Joint Institute for Nuclear Research
Indian Institute of Technology Bombay
University of Copenhagen
Université de Strasbourg
Moscow Engineering Physics Institute
Petersburg Nuclear Physics Institute (PNPI)
Institute of Space Science (ISS)
Gauhati University
INFN, Laboratori Nazionali Di Frascati
Czech Technical University in Prague
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
University of Texas at Austin
Moscow Institute for Physics and Technology
University of Pavia
Oak Ridge National Laboratory
Inha University
Università di Brescia
Universidade de São Paulo
Polytechnic University of Bari
Russian Federal Nuclear Center (VNIIEF)
Austrian Academy of Sciences
National Research Foundation
University of the Witwatersrand
University of Kansas
Pontifical Catholic Univ. of Peru
Universidad Autonoma de Sinaloa
Benemérita Universidad Autónoma de Puebla
National University of Science and Technology POLITEHNICA Bucharest
Université de Lyon
Homi Bhabha National Institute
Universidade Estadual de Campinas
University of Tsukuba
University of Cape Town
University of Birmingham
Université Grenoble Alpes
Università del Piemonte Orientale and Gruppo Collegato INFN
Universidade Federal do ABC
Frankfurt Institute for Advanced Studies
Warsaw University of Technology
University of California at Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
RAS - Institute for Nuclear Research
Panjab University
Technical University of Košice
Comenius University
University of Zagreb
Institute for High Energy Physics
Chicago State University
National Nuclear Research Center
Universidade Federal do Rio Grande do Sul
University of Tennessee
Nagasaki Institute of Applied Science
Wayne State University
University of Split
Institute for Subatomic Physics of Utrecht University
A. I. Alikhanyan National Science Laboratory (YereVan Physics Institute) Foundation
Tokyo University
Rheinische Friedrich-Wilhelms-Universität Bonn
Western Norway University of Applied Sciences
Centro de Investigación y de Estudios AVanzados (CINVESTAV)
Yonsei University
Creighton University
University of Jyväskylä
Ohio State University
Suranaree University of Technology
Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologietransfer und Telekommunikation (ZTT)
Pusan National University
Jeonbuk National University
Sejong University
California Polytechnic State University, San Luis Obispo
National Centre for Nuclear Studies
University of South-Eastern Norway
China Institute of Atomic Energy
Fudan University
University of Messina
Università degli Studi di Foggia
University of Helsinki
Chungbuk National University
Hiroshima University
Budker Institute for Nuclear Physics
University of Rajasthan
Eberhard Karls Universität Tübingen
Nara Women's University
Bogolyubov Institute for Theoretical Physics Nasu
Institute of Physics of the Czech Academy of Sciences

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

46 Scopus citations

Abstract

The production of prompt Λ_c⁺ baryons at midrapidity (|y|<0.5) was measured in central (0–10%) and mid-central (30–50%) Pb–Pb collisions at the center-of-mass energy per nucleon–nucleon pair s_NN=5.02 TeV with the ALICE detector. The results are more precise, more differential in centrality, and reach much lower transverse momentum (p_T=1 GeV/c) with respect to previous measurements performed by the ALICE, STAR, and CMS Collaborations in nucleus–nucleus collisions, allowing for an extrapolation down to p_T=0. The p_T-differential Λ_c⁺/D⁰ ratio is enhanced with respect to the pp measurement for 4<p_T<8 GeV/c by 3.7 standard deviations (σ), while the p_T-integrated ratios are compatible within 1σ. The observed trend is similar to that observed in the strange sector for the Λ/K_S⁰ ratio. Model calculations including coalescence or statistical hadronization for charm-hadron formation are compared with the data.

Original language	English
Article number	137796
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	839
DOIs	https://doi.org/10.1016/j.physletb.2023.137796
State	Published - 10 Apr 2023

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@article{c5c9e03ba02a44d8878b8fb14764cefd,

title = "Constraining hadronization mechanisms with Λc+/D0 production ratios in Pb–Pb collisions at sNN=5.02 TeV",

abstract = "The production of prompt Λc+ baryons at midrapidity (|y|<0.5) was measured in central (0–10\%) and mid-central (30–50\%) Pb–Pb collisions at the center-of-mass energy per nucleon–nucleon pair sNN=5.02 TeV with the ALICE detector. The results are more precise, more differential in centrality, and reach much lower transverse momentum (pT=1 GeV/c) with respect to previous measurements performed by the ALICE, STAR, and CMS Collaborations in nucleus–nucleus collisions, allowing for an extrapolation down to pT=0. The pT-differential Λc+/D0 ratio is enhanced with respect to the pp measurement for 4T<8 GeV/c by 3.7 standard deviations (σ), while the pT-integrated ratios are compatible within 1σ. The observed trend is similar to that observed in the strange sector for the Λ/KS0 ratio. Model calculations including coalescence or statistical hadronization for charm-hadron formation are compared with the data.",

author = "\{ALICE Collaboration\} and S. Acharya and D. Adamov{\'a} and A. Adler and J. Adolfsson and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and I. Ahuja and Z. Akbar and A. Akindinov and M. Al-Turany and Alam, \{S. N.\} and D. Aleksandrov and B. Alessandro and Alfanda, \{H. M.\} and \{Alfaro Molina\}, R. and B. Ali and Y. Ali and A. Alici and N. Alizadehvandchali and A. Alkin and J. Alme and G. Alocco and T. Alt and I. Altsybeev and Anaam, \{M. N.\} and C. Andrei and D. Andreou and A. Andronic and V. Anguelov and F. Antinori and P. Antonioli and C. Anuj and N. Apadula and L. Aphecetche and H. Appelsh{\"a}user and S. Arcelli and R. Arnaldi and Arsene, \{I. C.\} and M. Arslandok and A. Augustinus and R. Averbeck and S. Aziz and Azmi, \{M. D.\} and A. Badal{\`a} and \{Bazo Alba\}, \{J. L.\} and Gago, \{A. M.\}",

note = "Publisher Copyright: {\textcopyright} 2023 European Organization for Nuclear Research",

year = "2023",

month = apr,

day = "10",

doi = "10.1016/j.physletb.2023.137796",

language = "English",

volume = "839",

journal = "Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics",

issn = "0370-2693",

}

TY - JOUR

T1 - Constraining hadronization mechanisms with Λc+/D0 production ratios in Pb–Pb collisions at sNN=5.02 TeV

AU - ALICE Collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Adolfsson, J.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akbar, Z.

AU - Akindinov, A.

AU - Al-Turany, M.

AU - Alam, S. N.

AU - Aleksandrov, D.

AU - Alessandro, B.

AU - Alfanda, H. M.

AU - Alfaro Molina, R.

AU - Ali, B.

AU - Ali, Y.

AU - Alici, A.

AU - Alizadehvandchali, N.

AU - Alkin, A.

AU - Alme, J.

AU - Alocco, G.

AU - Alt, T.

AU - Altsybeev, I.

AU - Anaam, M. N.

AU - Andrei, C.

AU - Andreou, D.

AU - Andronic, A.

AU - Anguelov, V.

AU - Antinori, F.

AU - Antonioli, P.

AU - Anuj, C.

AU - Apadula, N.

AU - Aphecetche, L.

AU - Appelshäuser, H.

AU - Arcelli, S.

AU - Arnaldi, R.

AU - Arsene, I. C.

AU - Arslandok, M.

AU - Augustinus, A.

AU - Averbeck, R.

AU - Aziz, S.

AU - Azmi, M. D.

AU - Badalà, A.

AU - Bazo Alba, J. L.

AU - Gago, A. M.

PY - 2023/4/10

Y1 - 2023/4/10

N2 - The production of prompt Λc+ baryons at midrapidity (|y|<0.5) was measured in central (0–10%) and mid-central (30–50%) Pb–Pb collisions at the center-of-mass energy per nucleon–nucleon pair sNN=5.02 TeV with the ALICE detector. The results are more precise, more differential in centrality, and reach much lower transverse momentum (pT=1 GeV/c) with respect to previous measurements performed by the ALICE, STAR, and CMS Collaborations in nucleus–nucleus collisions, allowing for an extrapolation down to pT=0. The pT-differential Λc+/D0 ratio is enhanced with respect to the pp measurement for 4T<8 GeV/c by 3.7 standard deviations (σ), while the pT-integrated ratios are compatible within 1σ. The observed trend is similar to that observed in the strange sector for the Λ/KS0 ratio. Model calculations including coalescence or statistical hadronization for charm-hadron formation are compared with the data.

AB - The production of prompt Λc+ baryons at midrapidity (|y|<0.5) was measured in central (0–10%) and mid-central (30–50%) Pb–Pb collisions at the center-of-mass energy per nucleon–nucleon pair sNN=5.02 TeV with the ALICE detector. The results are more precise, more differential in centrality, and reach much lower transverse momentum (pT=1 GeV/c) with respect to previous measurements performed by the ALICE, STAR, and CMS Collaborations in nucleus–nucleus collisions, allowing for an extrapolation down to pT=0. The pT-differential Λc+/D0 ratio is enhanced with respect to the pp measurement for 4T<8 GeV/c by 3.7 standard deviations (σ), while the pT-integrated ratios are compatible within 1σ. The observed trend is similar to that observed in the strange sector for the Λ/KS0 ratio. Model calculations including coalescence or statistical hadronization for charm-hadron formation are compared with the data.

UR - https://www.scopus.com/pages/publications/85150826666

U2 - 10.1016/j.physletb.2023.137796

DO - 10.1016/j.physletb.2023.137796

M3 - Article

AN - SCOPUS:85150826666

SN - 0370-2693

VL - 839

JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics

M1 - 137796

ER -

Constraining hadronization mechanisms with Λ_c⁺/D⁰ production ratios in Pb–Pb collisions at s_NN=5.02 TeV

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