Testing type Ⅱ seesaw leptogenesis at the LHC  

作　　者：韩成成 雷展宏 廖炜豪 Chengcheng Han;Zhanhong Lei;Weihao Liao(School of Physics,Sun Yat-Sen University,Guangzhou 510275,China)

机构地区：[1]School of Physics,Sun Yat-Sen University,Guangzhou 510275,China

出　　处：《Chinese Physics C》2023年第9期61-68,共8页中国物理C（英文版）

基　　金：C.H.is supported by the Sun Yat-Sen University Science Foundation,and the Fundamental Research Funds for the Central Universities,Sun Yat-sen University(23qnpy58)。

摘　　要：Type Ⅱ seesaw leptogenesis simultaneously explains the origin of neutrino masses,the baryon asymmetry of our universe,and inflation.The Large Hadron Collider(LHC)provides an opportunity to directly test type Ⅱ seesaw leptogenesis by looking for the predicted triplet Higgs.In this paper,we perform an analysis of the detection prospect for the triplet Higgs at the LHC through multi-electron channels.We find that due to the contribution of the pp→H^(±±)H^(∓) process,the sensitivity of multi-electron channels searching for doubly-charged Higgs pair production can be improved.We also investigate the 3e+E_(T)^(miss) signals to probe pp→H^(±±)H^(∓) production and find that the future high luminosity LHC could probe a triplet Higgs around 1.2 TeV at the 2σlevel.

关 键 词：type II seesaw Triplet Higgs LHC 

分 类 号：O572.32[理学—粒子物理与原子核物理]