The scale of superpartner masses and electroweakino searches at the high-luminosity LHC

Journal of High Energy Physics

Xiao-Ping Wang¹  Carlos E. M. Wagner²  Navin McGinnis³  Jia Liu⁴ 

[1] High Energy Physics Division, Argonne National Laboratory;Physics Department and Enrico Fermi Institute, University of Chicago;Physics Department, Indiana University;School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University;

关键词: Beyond Standard Model;    Supersymmetric Standard Model;    Higgs Physics;   

DOI  :  10.1007/JHEP12(2020)087

来源: DOAJ

【 摘 要 】

Abstract Searches for weakly interacting particles is one of the main goals of the high luminosity LHC run. In this work we study the well motivated cases of electroweakinos with mostly Wino and Bino components. We show the relevance of squark induced t-channel production in defining the production cross section and hence the LHC reach. Moreover, a realistic evaluation of the decay branching ratios show a strong dependence on the sign of μ and, for negative values of μ, on the relative size of the ratio of μ to the gaugino masses compared with tan β. Overall, unless it is kinematically suppressed, or specific conditions are fulfilled, the Higgs decay channel is the most significant one, and the trilepton channel becomes subdominant with respect to final states including bottom quarks. Although the properties are different than in the Higgsino-Bino case, also in this case the discovery reach extends to mass values that are significantly larger than the ones probed at current luminosities, leading to a strong motivation for the search for electroweakinos in the high luminosity LHC run.

【 授权许可】

Unknown