Hadronization from color interactions  

作　　者：Guang-Lei Li Chun-Bin Yang 李光磊;杨纯斌(Institute of Particle Physics & Key Laboratory of Quark and Lepton Physics (MOE),Central China Normal University)

机构地区：[1]Institute of Particle Physics & Key Laboratory of Quark and Lepton Physics (MOE),Central China Normal University

出　　处：《Chinese Physics C》2019年第5期57-69,共13页中国物理C（英文版）

基　　金：Supported in part by National Natural Science Foundation of China(11435004,11375069);the Ministry of Science and Technology of China(2015CB56901);the Programme of Introducing Talents of Discipline to Universities(B08033)

摘　　要：A quark coalescence model, based on semi-relativistic molecular dynamics with color interactions among quarks, is presented and applied to pp collisions. A phenomenological potential with two tunable parameters is introduced to describe the color interactions between quarks and antiquarks. The interactions drive the process of hadronization that finally results in different color neutral clusters, which can be identified as hadrons based on some criteria. A Monte Carlo generator PYTHIA is used to generate quarks in the initial state of hadronization, and different values of tunable parameters are used to study the final state distributions and correlations. Baryon-to-meson ratio, transverse momentum spectra, pseudorapidity distributions and forward-backward multiplicity correlations of hadrons produced in the hadronization process, obtained from this model with different parameters, are compared with those from PYTHIA.A quark coalescence model, based on semi-relativistic molecular dynamics with color interactions among quarks, is presented and applied to pp collisions. A phenomenological potential with two tunable parameters is introduced to describe the color interactions between quarks and antiquarks. The interactions drive the process of hadronization that finally results in different color neutral clusters, which can be identified as hadrons based on some criteria. A Monte Carlo generator PYTHIA is used to generate quarks in the initial state of hadronization, and different values of tunable parameters are used to study the final state distributions and correlations. Baryon-to-meson ratio, transverse momentum spectra, pseudorapidity distributions and forward-backward multiplicity correlations of hadrons produced in the hadronization process, obtained from this model with different parameters, are compared with those from PYTHIA.

关 键 词：HADRONIZATION PP COLLISIONS MOLECULAR dynamics 

分 类 号：O4[理学—物理]