FCNC transition $c\to uγ$ in $B_c\to B_u^*γ$ decay
| dc.creator | Fajfer, S. | |
| dc.creator | Prelovsek, S. | |
| dc.creator | Singer, P. | |
| dc.date | 1999-11-17 | |
| dc.date.accessioned | 2026-07-07T04:08:52Z | |
| dc.date.available | 2026-07-07T04:08:52Z | |
| dc.description | We propose the $B_c\to B_u^*γ$ decay as the most suitable probe for the flavour changing neutral transition $c\to uγ$. We estimate the short and long distance contributions to this decay within the standard model and we find them to be comparable; this is in contrast to radiative decays of $D$ mesons, that are completely dominated by the long distance contributions. Since the $c\to uγ$ transition is very sensitive to the physics beyond the standard model, the standard model prediction $Br(B_c\to B_u^*γ)\sim 10^{-8}$ obtained here opens a new window for future experiments. The detection of $B_c\to B_u^*γ$ decay at branching ratio well above $10^{-8}$ would signal new physics. | |
| dc.description | 6 pages; presented at Heavy Flavours 8, Southampton, UK, 1999 | |
| dc.identifier | https://arxiv.org/abs/hep-ph/9911389 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/9911389 | |
| dc.identifier | IJS-TP/99-29 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/49639 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | FCNC transition $c\to uγ$ in $B_c\to B_u^*γ$ decay | |
| dc.type | text |