Quasi-Inclusive and Exclusive decays of $B$ to ${\eta }^{\prime }$

Abstract

We consider the effective Hamiltonian of four quark operators in the Standard Model in the exclusive and quasi-inclusive decays of the type $B\to K^{(\ast )}{\eta }^{\prime }$, $B\to {\eta }^{\prime }{X}_s$, where $X_s$ contains a single Kaon. Working in the factorization assumption we find that the four quark operators can account for the recently measured exclusive decays $B\to {\eta }^{\prime }(\eta )K$ and $B\to K\pi$ for appropriate choice of form factors but cannot explain the large quasi-inclusive rate.

Calculation of $B\to K\pi$ added and the correct BSW form factors have been used. Latex 13 papges, 1 figure

References in corpus (2)

• B to eta' + X and The QCD Anomaly
• The Color-Octet intrinsic charm in ${\eta }^{\prime }$ and $B\to {\eta }^{\prime }X$ decays

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