Exclusive decays of {chi}{sub bJ} and {eta}{sub b} into two charmed mesons
- Department of Physics, University of Arizona, Tucson, Arizona 85721 (United States)
We develop a framework to study the exclusive two-body decays of bottomonium into two charmed mesons and apply it to study the decays of the C-even bottomonia. Using a sequence of effective field theories, we take advantage of the separation between the scales contributing to the decay processes, 2m{sub b}>>m{sub c}>>{lambda}{sub QCD}. We prove that, at leading order in the EFT power counting, the decay rate factorizes into the convolution of two perturbative matching coefficients and three nonperturbative matrix elements, one for each hadron. We calculate the relations between the decay rate and nonperturbative bottomonium and D-meson matrix elements at leading order, with next-to-leading log resummation. The phenomenological implications of these relations are discussed.
- OSTI ID:
- 21325241
- Journal Information:
- Physical Review. D, Particles Fields, Vol. 80, Issue 7; Other Information: DOI: 10.1103/PhysRevD.80.074026; (c) 2009 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
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