Nonfactorizable corrections to B -> J/psi K

Details Nonfactorizable corrections to B -> J/psi K Nonfactorizable corrections to B -> J/psi K

2003-03-29

arxiv.org/abs/hep-ph/0303250v2

Phys.Rev. D68 (2003) 034004

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 3 figures included, RevTeX4, some comments added; published version

Scientific paper

10.1103/PhysRevD.68.034004

We apply the method of QCD light-cone sum rules to calculate nonfactorizable contributions to the B -> J/psi K decay and estimate soft nonfactorizable corrections to the a_2 parameter. The corrections appear to be positive, favoring the positive sign of a_2, in agreement with recent theoretical considerations and experimental data. Our result also confirms expectations that in the color-suppressed decay nonfactorizable corrections are sizable.

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