Photoproduction of low-pT J/ψ from peripheral to central Pb–Pb collisions at 5.02 TeV

ALICE Collaboration

doi:10.1016/j.physletb.2022.137467

Photoproduction of low-p_T J/ψ from peripheral to central Pb–Pb collisions at 5.02 TeV

ALICE Collaboration

Sección de Física

Université Clermont Auvergne
Variable Energy Cyclotron Centre
Czech Academy of Sciences
Goethe University Frankfurt
CERN
Sezione INFN
National Institute for Nuclear Physics
Aligarh Muslim University
Korea Institute of Science and Technology Information
Pavol Jozef Šafárik University
GSI Helmholtzzentrum für Schwerionenforschung
Central China Normal University
Universidad Nacional Autónoma de México
COMSATS University Islamabad
University of Houston
University of Bergen
National Institute for Physics and Nuclear Engineering
University of Münster
Ruprecht-Karls-Universität Heidelberg
Lawrence Berkeley National Laboratory
Nantes Université
University of Oslo
Yale University
CNRS-IN2P3
Dipartimento di Fisica e Astronomia dell'Università and Sezione INFN
Gangneung-Wonju National University
Indian Institute of Technology Indore
University of Jammu
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
Universidade de São Paulo
University of Liverpool
University of Lund
Indian Institute of Technology Bombay
University of Copenhagen
Université de Strasbourg
Institute of Space Science (ISS)
Gauhati University
INFN, Laboratori Nazionali Di Frascati
Faculty of Nuclear Sciences and Physical Engineering
Henryk Niewodniczanski Institute of Nuclear Physics of the Polish Academy of Sciences
University of Texas at Austin
Frankfurt Institute for Advanced Studies
University of Pavia
Oak Ridge National Laboratory
Inha University
Università di Brescia
Polytechnic University of Bari
Austrian Academy of Sciences
National Research Foundation
University of the Witwatersrand
University of Kansas
Pontifical Catholic Univ. of Peru
Universidad Autonoma de Sinaloa
National University of Science and Technology POLITEHNICA Bucharest
Université de Lyon
Homi Bhabha National Institute
Benemérita Universidad Autónoma de Puebla
Universidade Estadual de Campinas
National Institute for Subatomic Physics
University of Tsukuba
University of Birmingham
Université Grenoble Alpes
Università del Piemonte Orientale and Gruppo Collegato INFN
Universidade Federal do ABC
Warsaw University of Technology
University of California at Berkeley
Centro de Aplicaciones Tecnológicas y Desarrollo Nuclear
University of Cape Town
Panjab University
Technical University of Košice
Comenius University
University of Zagreb
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. Alikhanian Yerevan Institute of Physics
Tokyo University
Yonsei University
Rheinische Friedrich-Wilhelms-Universität Bonn
Western Norway University of Applied Sciences
Centro de Investigación y de Estudios AVanzados (CINVESTAV)
Creighton University
University of Jyväskylä
Ohio State University
Suranaree University of Technology
Slovak Academy of Sciences
KTO Karatay University
Zentrum für Technologie und Transfer (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
University of Science and Technology of China
Fudan University
University of Messina
Università degli Studi di Foggia
University of Helsinki
Chungbuk National University
Hiroshima University
University of Rajasthan
Eberhard Karls Universität Tübingen
Nara Women's University
Sofia University St. Kliment Ohridski
National Research and Innovation Agency Republic of Indonesia
Bogolyubov Institute for Theoretical Physics Nasu
Institute of Physics of the Czech Academy of Sciences

Producción científica: Contribución a una revista › Artículo › revisión exhaustiva

15 Citas (Scopus)

Resumen

An excess of J/ψ yield at very low transverse momentum (p_T<0.3 GeV/c), originating from coherent photoproduction, is observed in peripheral and semicentral hadronic Pb–Pb collisions at a center-of-mass energy per nucleon pair of s_NN=5.02 TeV. The measurement is performed with the ALICE detector via the dimuon decay channel at forward rapidity (2.5<y<4). The nuclear modification factor at very low p_T and the coherent photoproduction cross section are measured as a function of centrality down to the 10% most central collisions. These results extend the previous study at s_NN=2.76 TeV, confirming the clear excess over hadronic production in the p_T range 0−0.3 GeV/c and the centrality range 70–90%, and establishing an excess with a significance greater than 5σ also in the 50–70% and 30–50% centrality ranges. The results are compared with earlier measurements at s_NN=2.76 TeV and with different theoretical predictions aiming at describing how coherent photoproduction occurs in hadronic interactions with nuclear overlap.

Idioma original	Inglés
Número de artículo	137467
Publicación	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volumen	846
DOI	https://doi.org/10.1016/j.physletb.2022.137467
Estado	Publicada - 10 nov. 2023

Acceder al documento

10.1016/j.physletb.2022.137467

Otros archivos y enlaces

Enlace a la publicación en Scopus

Citar esto

@article{d8cbdcb89a944878805312e06577cfe6,

title = "Photoproduction of low-pT J/ψ from peripheral to central Pb–Pb collisions at 5.02 TeV",

abstract = "An excess of J/ψ yield at very low transverse momentum (pT<0.3 GeV/c), originating from coherent photoproduction, is observed in peripheral and semicentral hadronic Pb–Pb collisions at a center-of-mass energy per nucleon pair of sNN=5.02 TeV. The measurement is performed with the ALICE detector via the dimuon decay channel at forward rapidity (2.5T and the coherent photoproduction cross section are measured as a function of centrality down to the 10\% most central collisions. These results extend the previous study at sNN=2.76 TeV, confirming the clear excess over hadronic production in the pT range 0−0.3 GeV/c and the centrality range 70–90\%, and establishing an excess with a significance greater than 5σ also in the 50–70\% and 30–50\% centrality ranges. The results are compared with earlier measurements at sNN=2.76 TeV and with different theoretical predictions aiming at describing how coherent photoproduction occurs in hadronic interactions with nuclear overlap.",

author = "\{ALICE Collaboration\} and S. Acharya and D. Adamov{\'a} and A. Adler and \{Aglieri Rinella\}, G. and M. Agnello and N. Agrawal and Z. Ahammed and S. Ahmad and Ahn, \{S. U.\} and I. Ahuja and A. Akindinov and M. Al-Turany 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 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 Baek, \{Y. W.\} and X. Bai and R. Bailhache and Y. Bailung and \{Bazo Alba\}, \{J. L.\} and Gago, \{A. M.\}",

note = "Publisher Copyright: {\textcopyright} 2022 The Author(s)",

year = "2023",

month = nov,

day = "10",

doi = "10.1016/j.physletb.2022.137467",

language = "English",

volume = "846",

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

issn = "0370-2693",

}

TY - JOUR

T1 - Photoproduction of low-pT J/ψ from peripheral to central Pb–Pb collisions at 5.02 TeV

AU - ALICE Collaboration

AU - Acharya, S.

AU - Adamová, D.

AU - Adler, A.

AU - Aglieri Rinella, G.

AU - Agnello, M.

AU - Agrawal, N.

AU - Ahammed, Z.

AU - Ahmad, S.

AU - Ahn, S. U.

AU - Ahuja, I.

AU - Akindinov, A.

AU - Al-Turany, M.

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 - 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 - Baek, Y. W.

AU - Bai, X.

AU - Bailhache, R.

AU - Bailung, Y.

AU - Bazo Alba, J. L.

AU - Gago, A. M.

PY - 2023/11/10

Y1 - 2023/11/10

N2 - An excess of J/ψ yield at very low transverse momentum (pT<0.3 GeV/c), originating from coherent photoproduction, is observed in peripheral and semicentral hadronic Pb–Pb collisions at a center-of-mass energy per nucleon pair of sNN=5.02 TeV. The measurement is performed with the ALICE detector via the dimuon decay channel at forward rapidity (2.5T and the coherent photoproduction cross section are measured as a function of centrality down to the 10% most central collisions. These results extend the previous study at sNN=2.76 TeV, confirming the clear excess over hadronic production in the pT range 0−0.3 GeV/c and the centrality range 70–90%, and establishing an excess with a significance greater than 5σ also in the 50–70% and 30–50% centrality ranges. The results are compared with earlier measurements at sNN=2.76 TeV and with different theoretical predictions aiming at describing how coherent photoproduction occurs in hadronic interactions with nuclear overlap.

AB - An excess of J/ψ yield at very low transverse momentum (pT<0.3 GeV/c), originating from coherent photoproduction, is observed in peripheral and semicentral hadronic Pb–Pb collisions at a center-of-mass energy per nucleon pair of sNN=5.02 TeV. The measurement is performed with the ALICE detector via the dimuon decay channel at forward rapidity (2.5T and the coherent photoproduction cross section are measured as a function of centrality down to the 10% most central collisions. These results extend the previous study at sNN=2.76 TeV, confirming the clear excess over hadronic production in the pT range 0−0.3 GeV/c and the centrality range 70–90%, and establishing an excess with a significance greater than 5σ also in the 50–70% and 30–50% centrality ranges. The results are compared with earlier measurements at sNN=2.76 TeV and with different theoretical predictions aiming at describing how coherent photoproduction occurs in hadronic interactions with nuclear overlap.

UR - https://www.scopus.com/pages/publications/85173014619

U2 - 10.1016/j.physletb.2022.137467

DO - 10.1016/j.physletb.2022.137467

M3 - Article

AN - SCOPUS:85173014619

SN - 0370-2693

VL - 846

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 - 137467