LHC对撞机上pp(γγ→tt)pp过程的电弱修正  

The electroweak corrections to the process pp(γγ→tt)pp at the LHC

作　　者：孙衍斌[1] 刘娜[1] 胡浩月[1] 张健[1] 田佳佳[1] 

机构地区：[1]辽宁师范大学物理与电子技术学院,辽宁大连116029

出　　处：《辽宁师范大学学报（自然科学版）》2011年第4期447-452,共6页Journal of Liaoning Normal University:Natural Science Edition

摘　　要：在等效光子近似下计算了LHC对撞机上pp(γγ→tt)pp过程的电弱修正.结果表明:pp(γγ→tt)pp过程修正后的截面相对较小,但电弱修正效应却高达到-7%左右.所以,对于LHC对撞机上背景非常干净的pp(γγ→tt)pp过程而言,电弱修正效应是不能忽略的.In this paper the electroweak corrections to the process pp（γγ→tt）pp at the LHC are calculated in the equivalent photon approximation.Our results shows that the corrected cross sections for the process pp（γγ→tt）pp at the LHC are small relatively to its subprocess（γγ→tt）,but the electroweak correction effect is large up to-7%.Therefore,for the process pp（γγ→tt）pp which has very clean environment,its electroweak corrections have to be included.

关 键 词：LHC对撞机 高能光子相互作用 等效光子近似 电弱修正 

分 类 号：O572.24[理学—粒子物理与原子核物理]