Hiroyuki Umeeda

activity

20132026

most cited

D

meson mixing as an inverse problem

41 citations · 134 across the 23 of their papers we have counts for

collaborators

Showing 2018Show all

3 papers · 1 filter

hep-ph2018★ 9 cited

Direct CP Violation in Cabibbo-Favored Charmed Meson Decays and $ε^{'} / ε$ in $S U (2)_{L} \times S U (2)_{R} \times U (1)_{B - L}$ Model

Naoyuki Haba, Hiroyuki Umeeda, Toshifumi Yamada

Since the standard model contribution is virtually absent, any observation of direct CP violation in the Cabibbo-favored charmed meson decays would be evidence of new physics. In t…

hep-ph2018★ 17 cited

$ε^{'} / ε$ Anomaly and Neutron EDM in $S U (2)_{L} \times S U (2)_{R} \times U (1)_{B - L}$ model with Charge Symmetry

Naoyuki Haba, Hiroyuki Umeeda, Toshifumi Yamada

The Standard Model prediction for $ε^{'} / ε$ based on recent lattice QCD results exhibits a tension with the experimental data. We solve this tension through $W_{R}^{+}$ gauge boson exchan…

hep-ph2018★ 5 cited

Effective theory analysis for vector-like quark model

Takuya Morozumi, Yusuke Shimizu, Shunya Takahashi +1

We study a model with a down-type SU(2) singlet vector-like quark (VLQ) as a minimal extension of the standard model (SM). In this model, flavor changing neutral currents (FCNCs) a…

Direct CP Violation in Cabibbo-Favored Charmed Meson Decays and ε′/ε in SU(2)L​×SU(2)R​×U(1)B−L​ Model

ε′/ε Anomaly and Neutron EDM in SU(2)L​×SU(2)R​×U(1)B−L​ model with Charge Symmetry

Effective theory analysis for vector-like quark model

Direct CP Violation in Cabibbo-Favored Charmed Meson Decays and $ε^{'} / ε$ in $S U (2)_{L} \times S U (2)_{R} \times U (1)_{B - L}$ Model

$ε^{'} / ε$ Anomaly and Neutron EDM in $S U (2)_{L} \times S U (2)_{R} \times U (1)_{B - L}$ model with Charge Symmetry