LHC上寻找高恒动量eμ共振态(英文)  

Search for high-mass eμ resonance at LHC

作　　者：龚谌伟 韩良 刘衍文 张冬亮 赵政国 

机构地区：[1]中闷科学技术大学近代物理系,安徽合肥230026

出　　处：《中国科学技术大学学报》2009年第12期1277-1282,共6页JUSTC

基　　金：Supported by National Natural Science Foundation of China (10565001,10647002);Science Foundation of Guangxi(0481030 ,0542042 ,0575020)

摘　　要：在质心能量为14 TeV的质子质子对撞机LHC上对RPV最小超对称模型下eμ共振态进行了探讨.在引入了frequentist likelihood ratio confidence level的统计方法后,在95%的置信度下,假设没有新物理的出现,对RPV耦合做出了比Tevatron实验更为精确的预期结果.The potential of searching sneutrino in high mass eμ final states in pp collisions at center-of-mass 14 TeV at LHC collider, in the framework of R-parity violating （RPV） supersymmetric model is investigated. By introducing a frequentist likelihood ratio confidence level statistical treatment, expected 95% C. L. direct limits on RPV couplings λ′311×λ312 for different sneutrino masses can be derived under the assumption of no evidence for new physics, which are more stringent than those measured at Tevatron experiments.

关 键 词：LHC R宇称最小超对称 标量中微子 CLS 

分 类 号：O572.2[理学—粒子物理与原子核物理]