4 papers
B-> X_sl^+l^- and B->Kπdecays in vectorlike quark model
T. Morozumi, Z. Xiong, T. Yoshikawa
In the framework of SU(2) singlet down type vectorlike quark model, we present a comprehensive analysis for decays B-> X_s γ, B->X_sl^+l^- and B-> Kπ. As for B-> X_sγ, we include t…
Large-N_c meson theory
Shin-Ichiro Kuroki, Keiichi Morikawa, Takuya Morozumi
We derive an effective Lagrangian for meson fields. This is done in the light-cone gauge for two-dimensional large-N_c QCD by using the bilocal auxiliary field method. The auxiliar…
Rare Decay of K Meson
Y. Kiyo, T. Morozumi, M. Tanimoto
We investigate the rare decay processes of the K mesons, K_{L,S} -> π^0 ν\barν and K^{+} -> π^+ ν\barν in LR model with lepton family number being well conserved. In these processe…
Effect of the Flavor Changing Neutral Current on Rare decays
L. T. Handoko, T. Morozumi
We study the effect of the FCNC on rare decays in the beyond standard model with vector like singlet quarks. It has been shown that does not receive sizable…