Nonfactorizable soft contributions in the<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi>B</mml:mi><mml:mo>→</mml:mo><mml:msub><mml:mi>η</mml:mi><mml:mi>c</mml:mi></mml:msub><mml:mi>K</mml:mi><mml:mo>,</mml:mo><mml:msub><mml:mi>x</mml:mi><mml:mrow><mml:mi>c</mml:mi><mml:mn>0</mml:mn></mml:mrow></mml:msub><mml:mi>K</mml:mi></mml:math>decays with the light-cone sum rule approach

Abstract

In this article, we calculate the nonfactorizable soft contributions in the $B\ensuremath{\rightarrow}{\ensuremath{\eta}}_{c}K,{\ensuremath{\chi}}_{c0}K$ decays with the light-cone QCD sum rules approach. Our results show that the nonfactorizable corrections from the soft-gluon exchanges in the decay $B\ensuremath{\rightarrow}{\ensuremath{\eta}}_{c}K$ are of $(15\ensuremath{-}30)%$ and should be taken into account. As for the decay $B\ensuremath{\rightarrow}{\ensuremath{\chi}}_{c0}K$, the factorizable contributions are zero and the nonfactorizable contributions from the soft hadronic matrix elements are too small to accommodate the experimental data.

Locations

• Physical review. D. Particles, fields, gravitation, and cosmology/Physical review. D, Particles, fields, gravitation, and cosmology - View
• arXiv (Cornell University) - View - PDF
• DataCite API - View