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Rare decays ofB→J/ψD(*)andB→ηcD(*)in the perturbative QCD approach
- Source :
- Physical Review D. 73
- Publication Year :
- 2006
- Publisher :
- American Physical Society (APS), 2006.
-
Abstract
- Motivated by the recent measurement on the upper limit of B-0 -> J/psi D branching ratio, we investigate the B-0 -> J/psi D-(star) and eta D-c((star)) decays in the framework of k(T) factorization. We find that these pure annihilation (W-exchange) decays possess branching ratios of the order 10(-5)similar to 10(-7), which are just at the corner of being observable at the current running B factories. The measurements of these decay channels may help us to understand the QCD dynamics in the corresponding energy scale, and, especially, the distribution amplitudes of charmonium.
Details
- ISSN :
- 15502368 and 15507998
- Volume :
- 73
- Database :
- OpenAIRE
- Journal :
- Physical Review D
- Accession number :
- edsair.doi...........062d920658875b776638967815a0b28d