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

Date

1997-12-07

Author

Hiller, G
Iltan, EO

Metadata

Show full item record

This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.

Item Usage Stats

4
views

5
downloads

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

Collections

Department of Physics, Article