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ψ(3770) and B meson exclusive decay B → ψ(3770)K in QCD factorization.
- Source :
-
European Physical Journal A -- Hadrons & Nuclei . Jul2006, Vol. 28 Issue 3, p361-367. 7p. 1 Diagram, 1 Chart, 1 Graph. - Publication Year :
- 2006
-
Abstract
- Belle has observed surprisingly copious production of ψ(3770) in the B meson decay B → ψ(3770) K, whose rate is comparable to that of B → ψ(3686) K. We study this puzzling process in the QCD factorization approach with the effect of the S- D mixing considered. We find that the soft scattering effects in the spectator interactions play an essential role. With a proper parametrization for the higher-twist soft end-point singularities associated with kaon, and with the S- D mixing angle θ = - 12°, the calculated decay rates can be close to the data. Implications of these soft spectator effects to other charmonium production in B exclusive decays are also emphasized. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 14346001
- Volume :
- 28
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- European Physical Journal A -- Hadrons & Nuclei
- Publication Type :
- Academic Journal
- Accession number :
- 21680114
- Full Text :
- https://doi.org/10.1140/epja/i2006-10059-y