QUARKONIA PRODUCTION IN ULTRA-PERIPHERAL PbPb COLLISIONS AT THE LHCb

被引：0
|
作者：
Wang, Xiaolin [1 ]
机构：
[1] South China Normal Univ, Inst Quantum Matter, Guangdong Hong Kong Joint Lab Quantum Matter, Guangdong Prov Key Lab Nucl Sci, Guangzhou, Peoples R China
来源：
ACTA PHYSICA POLONICA B PROCEEDINGS SUPPLEMENT | 2023年 / 16卷 / 05期
关键词：
Compilation and indexing terms; Copyright 2024 Elsevier Inc;
D O I：
10.5506/APhysPolBSupp.16.5-A15
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
Measurements of coherent charmonium production cross sections together with their ratio in ultra-peripheral PbPb collisions are studied at a nucleon-nucleon centre-of-mass energy of 5.02 TeV. The differential cross-sections are measured as a function of rapidity and transverse momentum, separately. The photo-production of J/psi mesons at low transverse momentum is studied in peripheral PbPb collisions and coherent J/psi production in hadronic collisions is confirmed. These latest results significantly improve previous measurements and are compared with some theoretical predictions.
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页数：6
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