QCD corrections to b{r_arrow}s{gamma}{gamma} induced decays: B{r_arrow}X{sub s}{gamma}{gamma} and B{sub s}{r_arrow}{gamma}{gamma}
- Physics Department, Brookhaven National Laboratory, Upton, New York 11973 (United States)
- Dipartimento di Scienze Fisiche, Universita degli Studi di Napoli, and Istituto Nazionale di Fisica Nucleare, Sezione di Napoli, Mostra dOltremare, Pad. 19, I-80125 Napoli (Italy)
We present a complete calculation of the leading-order QCD corrections to the quark level decay amplitude for b{r_arrow}s{gamma}{gamma} and study their relevance for both the inclusive branching ratio B(B{r_arrow}X{sub s}{gamma}{gamma}) and for the exclusive decay channel B{sub s}{r_arrow}{gamma}{gamma}. In addition to the uncertainties in the short distance calculation, due to the choice of the renormalization scale, an appreciable uncertainty in both B{sub s}{r_arrow}{gamma}{gamma} and B{r_arrow}X{sub s}{gamma}{gamma} is introduced by the matrix element calculation. We also briefly discuss some long distance effects, especially those due to the {eta}{sub c} resonance for the inclusive rate. Finally, a brief analysis of the IR singularities of the two photon spectrum in the inclusive case is given. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 543908
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 9 Vol. 56; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
Two-photon exclusive decays B{sub s}{r_arrow}{eta}({eta}{sup {prime}}){gamma}{gamma} and B{r_arrow}K{gamma}{gamma}
Bremsstrahlung corrections to the decay {ital b}{r_arrow}{ital s}{gamma}
Towards a next-to-leading logarithmic result in B {r_arrow} X{sub s}{gamma}
Journal Article
·
Wed Oct 01 00:00:00 EDT 1997
· Physical Review, D
·
OSTI ID:560587
Bremsstrahlung corrections to the decay {ital b}{r_arrow}{ital s}{gamma}
Journal Article
·
Mon Jul 01 00:00:00 EDT 1996
· Physical Review, D
·
OSTI ID:285795
Towards a next-to-leading logarithmic result in B {r_arrow} X{sub s}{gamma}
Conference
·
Thu Aug 01 00:00:00 EDT 1996
·
OSTI ID:489606