Nonfactorizable soft contributions in the $B\longrightarrow η_c K,χ_{c0} K$ decays with the light-cone sum rules approach

Details Nonfactorizable soft contributions in the $B\longrightarrow η_c K,χ_{c0} K$ decays with the light-cone sum rules approach Nonfactorizable soft contributions in the $B\longrightarrow η_c K,χ_{c0} K$ decays with the light-cone sum rules approach

2003-11-24

arxiv.org/abs/hep-ph/0311296v4

Phys.Rev.D70:074006,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

16 pages; Revised version

Scientific paper

10.1103/PhysRevD.70.074006

In this article, we calculate the nonfactorizable soft contributions in the $B \to \eta_c K, \chi_{c0} K$ decays with the light cone QCD sum rules approach. Our results show that the nonfactorizable corrections from the soft gluon exchanges in the decay $B \to \eta_c K$ are of $(15-30)%$ and should not be neglected. As for the decay $B \to \chi_{c0} K$, the factorizable contributions are zero and the nonfactorizable contributions from the soft hadronic matrix elements are too small to accommodate the experimental data.

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