The time-reversal odd side of a jet  

作　　者：Xiaohui Liu Hongxi Xing 

机构地区：[1]Center of Advanced Quantum Studies,Department of Physics,Beijing Normal University,Beijing 100875,China [2]Center for High Energy Physics,Peking University,Beijing 100871,China [3]Guangdong Provincial Key Laboratory of Nuclear Science,Institute of Quantum Matter,South China Normal University,Guangzhou 510006,China [4]Guangdong-Hong Kong Joint Laboratory of Quantum Matter,South China Normal University,Guangzhou 510006,China

出　　处：《Fundamental Research》2023年第3期346-350,共5页自然科学基础研究（英文版）

基　　金：supported by the National Natural Science Foundation of China under Grants No.12022512,12035007 and 12175016;the Guangdong Major Project of Basic and Applied Basic Research No.2020B0301030008.

摘　　要：We re-examine the jet probes of the nucleon spin and flavor structures.We find for the first time that the time-reversal odd(T-odd)component of a jet,conventionally thought to vanish,can survive due to the non-perturbative fragmentation and hadronization effects.This additional contribution of a jet will lead to novel jet phenomena relevant for unlocking the access to several spin structures of the nucleon,which were thought to be impossible by using jets.As examples,we show how the T-odd constituent can couple to the proton transversity at the Electron Ion Collider(EIC)and can give rise to the anisotropy in the jet production in e^(+)e^(-) annihilations.We expect the T-odd contribution of the jet to have broad applications in high energy nuclear physics.

关 键 词：Jets Nucleon structure QCD factorization Spin physics Electron Ion Colliders 

分 类 号：O57[理学—粒子物理与原子核物理]