1 citations · 1 across the 3 of their papers we have counts for
8 papers
On-Shell Amplitudes and Black-Hole Perturbations: Exact Reissner-Nordström Mixing
Kento Takahara, Teppei Kitahara
Can flat-space on-shell amplitudes determine the channel basis of a coupled black-hole perturbation problem? We address this question for electromagnetic and gravitational perturba…
Full Three-Loop Electroweak Multiplet Contributions to the Electron Electric Dipole Moment
Tatsuya Banno, Junji Hisano, Teppei Kitahara +2
Experimental sensitivity to the electric dipole moment (EDM) of the electron has improved remarkably in recent years. Consequently, future prospects could probe new physics whose c…
Complete one-loop QED corrections to leptonic decays and impact on the CKM unitarity test
Teppei Kitahara, Jun Miyamoto, Kota Sasaki
Recently, a violation of the CKM unitarity condition has been reported in the latest charm-meson data and the latest lattice results, once the universal electroweak correction is t…
Discriminating Tauphilic Leptoquark Explanations of the Anomalies via and
Andreas Crivellin, Syuhei Iguro, Teppei Kitahara
Leptoquark models are prime candidates for new physics (NP) explanations of the long-standing anomalies in semi-leptonic decays; (encoded in )…
Two-loop corrections to QCD angle from evanescent operator in the BMHV scheme
Tatsuya Banno, Junji Hisano, Teppei Kitahara +2
We study the renormalization of the QCD angle at the two-loop level focusing on divergent and finite -violating contributions from evanescent operators, using dimensional…
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.…