130 citations · 2.1k across the 68 of their papers we have counts for
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Direct CP violation in decays and supersymmetry
Teppei Kitahara, Ulrich Nierste, Paul Tremper
The quantities and measure the amount of direct and indirect CP violation in decays, respectively. Using the recent lattice results from the RBC and UK…
Revisiting Kaon Physics in General Scenario
Motoi Endo, Teppei Kitahara, Satoshi Mishima +1
New physics contributions to the penguin are revisited in the light of the recently-reported discrepancy of the direct CP violation in . Interference effects between th…
Recent progress on CP violation in decays in the SM and a supersymmetric solution
Teppei Kitahara, Ulrich Nierste, Paul Tremper
Using the recent first lattice results of the RBC-UKQCD collaboration for decays, we perform a phenomenological analysis of and find a discrepancy bet…
Protophobic Light Vector Boson as a Mediator to the Dark Sector
Teppei Kitahara, Yasuhiro Yamamoto
The observation of a protophobic 16.7 MeV vector boson has been reported by a Be nuclear transition experiment. Such a new particle could mediate between the Standard Model and…
Singularity-free Next-to-leading Order Renormalization Group Evolution and in the Standard Model and Beyond
Teppei Kitahara, Ulrich Nierste, Paul Tremper
The standard analytic solution of the renormalization group (RG) evolution for the Wilson coefficients involves several singularities, which complicate analytic solutions.…
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 in…