T. Kitahara

activity

20122026

most citedImpact of polarization observables and

B_{c} \to τ ν

on new physics explanations of the

b \to c τ ν

anomaly

130 citations · 2.1k across the 68 of their papers we have counts for

collaborators

Showing 2025 · hep-phShow all

4 papers · 2 filters

hep-ph2025

Complete one-loop QED corrections to $D_{s}^{+}$ 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…

hep-ph2025★ 3 cited

Discriminating Tauphilic Leptoquark Explanations of the $B$ Anomalies via $K \to π ν ν ˉ$ and $B \to K ν ν ˉ$

Andreas Crivellin, Syuhei Iguro, Teppei Kitahara

Leptoquark models are prime candidates for new physics (NP) explanations of the long-standing anomalies in semi-leptonic $B$ decays; $b \to c τ ν ˉ$ (encoded in $R (D^{(*)})$ ) an…

hep-ph2025★ 2 cited

Two-loop corrections to QCD $θ$ angle from evanescent operator in the BMHV scheme

Tatsuya Banno, Junji Hisano, Teppei Kitahara +2

We study the renormalization of the QCD $θ$ angle at the two-loop level focusing on divergent and finite $C P$ -violating contributions from evanescent operators, using dimensional r…

hep-ph2025★ 6 cited

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.…

Complete one-loop QED corrections to Ds+​ leptonic decays and impact on the CKM unitarity test

Discriminating Tauphilic Leptoquark Explanations of the B Anomalies via K→πννˉ and B→Kννˉ

Two-loop corrections to QCD θ angle from evanescent operator in the BMHV scheme

Light scalar beyond the Higgs mixing limit

Complete one-loop QED corrections to $D_{s}^{+}$ leptonic decays and impact on the CKM unitarity test

Discriminating Tauphilic Leptoquark Explanations of the $B$ Anomalies via $K \to π ν ν ˉ$ and $B \to K ν ν ˉ$

Two-loop corrections to QCD $θ$ angle from evanescent operator in the BMHV scheme