文章基本信息

标题：Event Patterns Extracted from Transverse Momentum and Rapidity Spectra of Bosons and Quarkonium States Produced in pp and Pb-Pb Collisions at LHC
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作者：Ya-Hui Chen ; Fu-Hu Liu ; Roy A. Lacey 等
期刊名称：Advances in High Energy Physics
印刷版ISSN：1687-7357
电子版ISSN：1687-7365
出版年度：2016
卷号：2016
DOI：10.1155/2016/9876253
出版社：Hindawi Publishing Corporation
摘要：Transverse momentum () and rapidity () spectra of bosons and quarkonium states (some charmonium mesons such as and and some bottomonium mesons such as , , and ) produced in proton-proton (pp) and lead-lead (Pb-Pb) collisions at the large hadron collider (LHC) are uniformly described by a hybrid model of two-component Erlang distribution for spectrum and two-component Gaussian distribution for spectrum. The former distribution results from a multisource thermal model, and the latter one results from the revised Landau hydrodynamic model. The modelling results are in agreement with the experimental data measured in pp collisions at center-of-mass energies and 7 TeV and in Pb-Pb collisions at center-of-mass energy per nucleon pair TeV. Based on the parameter values extracted from and spectra, the event patterns (particle scatter plots) in two-dimensional - space and in three-dimensional velocity space are obtained.