Publications (73)
Singlino Resonant Dark Matter and 125 GeV Higgs Boson in High-Scale Supersymmetry
Kazuya Ishikawa, Teppei Kitahara, Masahiro Takimoto
We consider a singlino Dark Matter (DM) scenario in a singlet extension model of the Minimal Supersymmetric Standard Model, which is so-called the Nearly MSSM (nMSSM). We find that…
Impact of the Electroweak Weinberg Operator on the Electric Dipole Moment of Electron
Tatsuya Banno, Junji Hisano, Teppei Kitahara +2
Recent progresses in the measurements of the electric dipole moment (EDM) of the electron using the paramagnetic atom or molecule are remarkable. In this paper, we calculate a cont…
Constructing massive on-shell contact terms
Gauthier Durieux, Teppei Kitahara, Camila S. Machado +2
The purely on-shell approach to effective field theories requires the construction of independent contact terms. Employing the little-group-covariant massive-spinor formalism, we p…
Supersymmetric Explanation of CP Violation in Decays
Teppei Kitahara, Ulrich Nierste, Paul Tremper
Recent progress in the determination of hadronic matrix elements has revealed a tension between the measured value of , which quantifies direct violation i…
Light scalar beyond the Higgs mixing limit
Cédric Delaunay, Teppei Kitahara, Yotam Soreq +1
We explore the possibility that the interactions of a light scalar singlet, which mixes with the Standard Model~(SM) Higgs, also receive other UV contributions of comparable size.…
Stau study at the ILC and its implication for the muon g-2 anomaly
Motoi Endo, Koichi Hamaguchi, Sho Iwamoto +4
Once all the sleptons as well as the Bino are observed at the ILC, the Bino contribution to the muon anomalous magnetic dipole moment (muon ) in supersymmetric (SUSY) models c…