Oblique parameters in gauged baryon and lepton numbers with a 125 GeV Higgs  

作　　者：杨秀一 聂晶 

机构地区：[1]School of Science, University of Science and Technology Liaoning, Anshan 114051, China [2]School of Physics, Shandong University, Jinan 250100, China [3]Department of Physics, Dalian University of Technology, Dalian 116024, China

出　　处：《Chinese Physics C》2014年第5期1-11,共11页中国物理C（英文版）

基　　金：Supported by National Natural Science Foundation of China(11247019);Science and Technology Department of Liaoning(2012062)

摘　　要：In an extension of the standard model, where baryon number and lepton number are local gauge sym- metries, we analyze the effect of corrections from exotic fermions and scalars on the oblique parameters S, T, U. Because a light neutral Higgs h0 with mass around 12-126 GeV strongly constrains the corresponding parameter space of this model, we also investigate the gluon fusion process gg→h0 and two photon decay of the lightest neutral Higgs h0→yy at the Large Hadron Collider.In an extension of the standard model, where baryon number and lepton number are local gauge sym- metries, we analyze the effect of corrections from exotic fermions and scalars on the oblique parameters S, T, U. Because a light neutral Higgs h0 with mass around 12-126 GeV strongly constrains the corresponding parameter space of this model, we also investigate the gluon fusion process gg→h0 and two photon decay of the lightest neutral Higgs h0→yy at the Large Hadron Collider.

关 键 词：local gauge symmetry baryon and lepton numbers HIGGS 

分 类 号：O572.2[理学—粒子物理与原子核物理] O572.32[理学—物理]