Open AccessComparing Multicomponent Erlang Distribution and Lévy Distribution of Particle Transverse Momentums
Author(s) -
Hua-Rong Wei,
YaHui Chen,
Li-Na Gao,
F. H. Liu
Publication year - 2014
Publication title -
advances in high energy physics
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.59
H-Index - 49
eISSN - 1687-7365
pISSN - 1687-7357
DOI - 10.1155/2014/782631
Subject(s) - physics , large hadron collider , erlang distribution , nuclear physics , erlang (programming language) , relativistic heavy ion collider , transverse plane , hadron , distribution (mathematics) , proton , particle physics , heavy ion , ion , gamma distribution , mathematics , computer science , functional programming , mathematical analysis , statistics , structural engineering , theoretical computer science , quantum mechanics , engineering
The transverse momentum spectrums of final-state products produced in nucleus-nucleus and proton-proton collisions at different center-of-mass energies are analyzed by using a multicomponent Erlang distribution and the Lévy distribution. The results calculated by the two models are found in most cases to be in agreement with experimental data from the Relativistic Heavy Ion Collider (RHIC) and the Large Hadron Collider (LHC). The multicomponent Erlang distribution that resulted from a multisource thermal model seems to give a better description as compared with the Lévy distribution. The temperature parameters of interacting system corresponding to different types of final-state products are obtained. Light particles correspond to a low temperature emission, and heavy particles correspond to a high temperature emission. Extracted temperature from central collisions is higher than that from peripheral collisions
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