Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
1993-07-30
Physics
High Energy Physics
High Energy Physics - Phenomenology
18pages, Latex. Paper (Hayashi, Takemi et al. AUE-02-93) is replaced with reviced version Jan 1994 and aloso the title is chan
Scientific paper
10.1103/PhysRevD.49.5882
We systematically analyse the gluonic penguin-induced charmless decays $B \ra K_X\phi$($K_X$ denotes the meson state $s\bar q \;(q=u\ {\rm or}\ d)$ ), in the standard model and the two-Higgs-doublet model. These processes, being induced at one-loop level, are of great importance in measuring the virtual top quark effect in the standard model, and also in searching for the non-standard signals in the low energy region. It is shown that the QCD effect is also significant in these processes, as in the weak radiative processes $B \ra X_s \gamma$. We also show that the charged Higgs contribution can not provide sizable enhancements for the decays $B \ra K_X\phi$, in contrast to the decays $B \ra K_X\gamma$. It is also found that processes such as $B \ra K_1(1400)\phi$ and $B \ra K(1460)\phi$ have large branching fractions among $B \ra K_X\phi$ decays.
Davies Jackie A.
Hayashi Tadashi
Matsuda Makoto
Tanimoto Morimitsu
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