16 citations · 32 across the 3 of their papers we have counts for
3 papers
hep-ph2009★ 11 cited
Flavor-changing interactions with singlet quarks and their implications for the LHC
Katsuichi Higuchi, Katsuji Yamamoto
We investigate the flavor-changing interactions in an extension of the standard model with singlet quarks and singlet Higgs, which are induced by the mixing between the ordinary qu…
hep-ph2006★ 5 cited
Universality of strength for Yukawa couplings with extra down-type quark singlets
Katsuichi Higuchi, Masato Senami, Katsuji Yamamoto
We investigate the quark masses and mixings by including vector-like down-type quark singlets in universality of strength for Yukawa couplings (USY). In contrast with the standard…
hep-ph2000★ 16 cited
Quark mixings and flavor changing interactions with singlet quarks
Katsuichi Higuchi, Katsuji Yamamoto
Aspects of the quark mixings and flavor changing interactions are investigated in electroweak models with singlet quarks. The effects on the ordinary quark mixing are determined in…