Rare decayB→K*γ: A more precise calculation
| Autor: | Humphrey K. K. Tung, Patrick J. O'Donnell |
|---|---|
| Rok vydání: | 1993 |
| Předmět: |
Physics
Semileptonic decay Particle physics Meson 010308 nuclear & particles physics Computer Science::Information Retrieval High Energy Physics::Phenomenology Hadron Quark model Elementary particle 01 natural sciences Particle decay 0103 physical sciences High Energy Physics::Experiment B meson 010306 general physics Boson |
| Zdroj: | Physical Review D. 48:2145-2151 |
| ISSN: | 0556-2821 |
| Popis: | Efforts to predict the rare exclusive decay [ital B][r arrow][ital K][sup *][gamma] from the well-known inclusive decay [ital b][r arrow][ital s][gamma] are frustrated by the effect of the large recoil momentum. We show how to reduce the large uncertainty in calculating this decay by relating [ital B][r arrow][ital K][sup *][gamma] to the semileptonic process [ital B][r arrow][rho][ital e][bar [nu]] using the heavy-quark symmetry in [ital B] decays and SU(3) flavor symmetry. A direct measurement of the [ital q][sup 2] spectrum for the semileptonic decay can provide accurate information for the exclusive rare decay. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|