Emi Kou

CombinedB → X s Ψ andB → X s ν c decays as a test of factorization

We calculate the inclusive decaysB → XsΨ andB → Xsνc using factorization assumption. To investigate the bound state effect of the decaying B meson in these inclusive decays we take into account the motion of theb quark using a Gaussian momentum distribution model. The resulting correction to free quark decay approximation is around 6% at most. Utilizing a potential model evaluation of the ratio of the decay constantsfνc2/fΨ2, it is shown that the ratioR = Γ(B → Xsνc)/Γ(B → XsΨ) can be used a possible test of factorization assumption.

Combined B->X_s\psi and B-> X_s\eta_c decays as a test of factorization

We calculate the inclusive decays

Nonspectator contribution: A mechanism for inclusiveB→Xsη′and exclusiveB→K(*)η′decays

B\to X_s\psi

Possible large direct CP asymmetry in hadronic B ± → π ± η ′ decays

and

Nonperturbative QCD contribution to the gluon-gluon-η′vertex

B\to X_s\eta_c

A more careful estimate of the charm content of η

using factorization assumption. To investigate the bound state effect of the decaying B meson in these inclusive decays we take into account the motion of the

Intermediate pseudoscalar resonance contributions to B → X s γ γ

b

Intermediate pseudoscalar resonance contributions to B-->Xsgammagamma

quark using a Gaussian momentum distribution model. The resulting correction to free quark decay approximation is around 6% at most. Utilizing a potential model evaluation of the ratio of the decay constants

Combined B-> Xspsi and B-> Xs decays as a test of factorization

f^2_{\eta_c}/f^2_\psi

Combined

, it is shown that the ratio