摘要
We use a geometric model for hadron polarization in heavy ion collisions with an emphasis on the rapidity dependence.The model is based on the model of Brodsky,Gunion,and Kuhn,as well as the Bjorken scaling model.We make predictions regarding the rapidity dependence of global Λ polarization in the collision energy range of 7.7-200 GeV by assuming the rapidity dependence of two parameters,κ and <ρτ>. The predictions can be tested by future beam-energy-scan experiments at the Relativistic Heavy Ion Collider of Brookhaven National Lab.
作者
Zuo-Tang Liang
Jun Song
Isaac Upsal
Qun Wang
Zhangbu Xu
梁作堂;宋军;Isaac Upsal;王群;许长补(Institute of Frontier and Interdisciplinary Science,Key Laboratory of Particle Physics and Particle Irradiation(MOE),Shandong University,Qingdao 266237,China;Department of Physics,Jining University,Shandong 273155,China;Physics Department,Brookhaven National Laboratory,Upton,New York 11973,USA;Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China)
基金
ZTL and QW are supported in part by the National Natural Science Foundation of China(NSFC)(11890713,11535012)
JS is sup ported in part by Shandong Province Natural Science Foundation(ZR2019YQ06)。
