Estimate of the long-distance contribution through b -> s psi to the B-s ->gamma gamma decay rate

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1997-12-07

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Hiller, G
Iltan, EO

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The B-s --> phi psi decay is modeled through the inclusive b --> s phi decay. Using the vector meson dominance model, the amplitude for the chain process B-s --> phi psi --> phi gamma --> gamma gamma is estimated and it is found to be at most 4% of the corresponding amplitude from the O-7 type LD contribution. The intermediate amplitude for the process B-s --> phi gamma is compared with the corresponding one obtained by a different approach based on the interaction of the virtual charm quark loop with soft, gluons.(7) Both amplitudes are found to agree within 10%. Further the influence on the branching ratio B(B-s --> gamma gamma)(SD+LDO7) from inclusive b --> s psi is estimated to be less than 1%.

Subject Keywords

Nuclear and High Energy Physics, Astronomy and Astrophysics

URI

https://hdl.handle.net/11511/65410

Journal

MODERN PHYSICS LETTERS A

DOI

https://doi.org/10.1142/s021773239700296x

Collections

Department of Physics, Article

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Citation Formats

G. Hiller and E. Iltan, “Estimate of the long-distance contribution through b -> s psi to the B-s ->gamma gamma decay rate,” MODERN PHYSICS LETTERS A, pp. 2837–2846, 1997, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65410.