e^(+)e^(−)γ production at photon-photon colliders at complete electroweak NLO accuracy  

作　　者：He-Yi Li Ren-You Zhang Wen-Gan Ma Yi Jiang Xiao-Zhou Li 李和意;张仁友;马文淦;蒋一;李晓周(State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026,China;Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China)

机构地区：[1]State Key Laboratory of Particle Detection and Electronics,University of Science and Technology of China,Hefei 230026,China [2]Department of Modern Physics,University of Science and Technology of China,Hefei 230026,China

出　　处：《Chinese Physics C》2022年第4期40-56,共17页中国物理C（英文版）

基　　金：Supported in part by the National Natural Science Foundation of China(11775211,12061141005);the CAS Center for Excellence in Particle Physics(CCEPP)。

摘　　要：We present the NLO electroweak radiative corrections to the e^(+)e^(−)γ production in γγ collision,which is an ideal channel for calibrating the beam luminosity of a Photon Linear Collider.We analyze the dependence of the total cross section on the beam colliding energy,and then investigate the kinematic distributions of final particles at various initial photon beam polarizations at EW NLO accuracy.The numerical results indicate that the EW relative corrections to the total cross section are non-negligible and become increasingly significant as the increase of the beam colliding energy,even can exceed -10% in the J=2 γγ collision at √s=1 TeV.Such EW corrections are very important and should be taken into consideration in precision theoretical and experimental studies at high-energy γγ colliders.

关 键 词：luminosity measurement at PLC NLO electroweak correction longitudinally-polarized beams 

分 类 号：O572.214[理学—粒子物理与原子核物理]