Alternative methods for measurement of the global polarization of Λhyperons  

作　　者：Irfan Siddique Zuo-tang Liang Michael Annan Lisa Qun Wang Zhang-bu Xu Irfan Siddique;梁作堂;Michael Annan Lisa;王群;许长补

机构地区：[1]Department of Modern Physics, University of Science and Technology of China [2]School of Physics & Key Laboratory of Particle Physics and Particle Irradiation (MOE) [3]Physics Department, The Ohio State University [4]Physics Department, Brookhaven National Laboratory

出　　处：《Chinese Physics C》2019年第1期103-108,共6页中国物理C（英文版）

基　　金：Supported in part by the Major State Basic Research Development Program(MSBRD)in China(2015CB856902,2014CB845402);the National Natural Science Foundation of China(NSFC)(11535012)

摘　　要：We propose alternative methods for measurement of the global polarization of Λ hyperons. These methods involve event averages of proton and Λ momenta in the laboratory frame. We carry out simulations using these methods and show that all of them work equally well in obtaining the global polarization of Λ hyperons.We propose alternative methods for measurement of the global polarization of Λ hyperons. These methods involve event averages of proton and Λ momenta in the laboratory frame. We carry out simulations using these methods and show that all of them work equally well in obtaining the global polarization of Λ hyperons.

关 键 词：HEAVY ion COLLISIONS GLOBAL POLARIZATION COLLECTIVE flow 

分 类 号：O4[理学—物理]