Weak Radiative B Decays
| dc.creator | Antipin, Oleg | |
| dc.creator | Valencia, G. | |
| dc.date | 2006-06-06 | |
| dc.date | 2006-08-24 | |
| dc.date.accessioned | 2026-07-07T10:41:42Z | |
| dc.date.available | 2026-07-07T10:41:42Z | |
| dc.description | We study the (tree-level) weak radiative decays of $B$ mesons. We present a numerical estimate for the inclusive $b \to X_c γ(γ)$ modes based on the free-quark decay. We then review what is known for the $B \to D^\star γ$ modes in the framework of heavy quark effective theory and chiral perturbation theory. Finally, we extend these ideas to the double radiative decay modes $B \to D γγ$. We find that the $b \to X_c γγ$ rate is about an order of magnitude larger than the corresponding $b \to X_s γγ$ rate. We also find the branching ratio for the $B \to D γγ$ mode with most favorable CKM angles at the few $\times10^{-8}$ level, comparable to predictions for $B \to K γγ$. | |
| dc.description | typos corrected, references added, to appear in Phys.Rev.D | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0606065 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0606065 | |
| dc.identifier | Phys.Rev.D74:054015,2006 | |
| dc.identifier | doi:10.1103/PhysRevD.74.054015 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/181706 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Weak Radiative B Decays | |
| dc.type | text |