activity
19982019
most citedProbing Anomalous Top-Quark Couplings Induced by Dim.6 Operators at Photon Colliders

83 citations · 370 across the 28 of their papers we have counts for

collaborators

28 papers

hep-ph2019

Effective Lagrangian Approach to Top Decay via Flavor Changing Neutral Current

Zenro Hioki, Kazumasa Ohkuma, Akira Uejima

We study possible non-standard and couplings, which induce flavor-changing neutral-current decays of the top quark, in the effective-Lagrangian framework. The correspon…

hep-ph2019★ 1 cited

Correlations in flavor-changing tqZ couplings constrained via experimental data

Zenro Hioki, Kazumasa Ohkuma, Akira Uejima

Possible non-standard tqZ couplings, where q=c or u, originated from general flavor-changing-neutral-current interactions are studied model-independently using the effective Lagran…

hep-ph2018★ 2 cited

Studying flavor-changing neutral tqZ couplings: Current constraints and future prospects

Zenro Hioki, Kazumasa Ohkuma, Akira Uejima

Possible non-standard tuZ and tcZ interactions, which induce flavor-changing neutral-current decays of the top quark, are studied in the effective-Lagrangian framework. The corresp…

hep-ph2016

Constraints on generalized non-standard couplings

Zenro Hioki, Kazumasa Ohkuma, Akira Uejima

General non-standard couplings are studied as model independently as possible based on the effective Lagrangian consisting of the dimension-6 operators, which is an extension…

hep-ph2016★ 5 cited

Refined analysis and updated constraints on general non-standard tbW couplings

Zenro Hioki, Kazumasa Ohkuma, Akira Uejima

We recently studied possible non-standard tbW couplings based on the effective-Lagrangian which consists of four kinds of SU(3) x SU(2) x U(1) invariant dimension-6 effective opera…

hep-ph2015★ 14 cited

Full analysis of general non-standard tbW couplings

Zenro Hioki, Kazumasa Ohkuma

Possible non-standard couplings which could contribute to the t -> b W process are studied based on the effective-Lagrangian approach. The corresponding effective Lagrangian consis…