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26 papers
CPT, Majorana fermions, and particle physics beyond the Standard Model
Ken-ichi Hikasa
After reviewing charge conjugation and the CPT theorem, we define Majorana fermions and clarify the relationship of Majorana, Weyl, and Dirac fields. Appearance of Majorana fermion…
Probing stops in the coannihilation region at the HL-LHC: a comparative study of different processes
Guang Hua Duan, Xiang Fan, Ken-ichi Hikasa +2
In the minimal supersymmetric model, the coannihilation of the lighter stop and bino-like dark matter provides a feasible way to accommodate the correct dark matt…
Testing electroweak SUSY for muon and dark matter at the LHC and beyond
Murat Abdughani, Ken-ichi Hikasa, Lei Wu +2
Given that the LHC experiment has produced strong constraints on the colored supersymmetric particles (sparticles), testing the electroweak supersymmetry (EWSUSY) will be the next…
Probing bino-wino coannihilation dark matter under the neutrino floor at the LHC
Guang Hua Duan, Ken-ichi Hikasa, Jie Ren +2
In the minimal supersymmetric standard model (MSSM) the bino-wino coannihilation provides a feasible way to accommodate the observed cosmological dark matter (DM) relic density. Ho…
Status of CMSSM in light of current LHC Run-2 and LUX data
Chengcheng Han, Ken-ichi Hikasa, Lei Wu +2
Motivated by the latest results of the LHC Run-2 and LUX experiments, we examine the status of the constrained minimal supersymmetric standard model (CMSSM) by performing a global…
Leptonic mono-top from single stop production at LHC
Guang Hua Duan, Ken-ichi Hikasa, Lei Wu +2
Top squark (stop) can be produced via QCD interaction but also the electroweak interaction at the LHC. In this paper, we investigate the observability of the associated production…