$B_{s,d} \to γγ$ Decay with the Fourth Generation
| dc.creator | Huo, W. J. | |
| dc.creator | Lu, C. D. | |
| dc.creator | Xiao, Z. J. | |
| dc.date | 2003-02-19 | |
| dc.date.accessioned | 2026-07-07T03:49:12Z | |
| dc.date.available | 2026-07-07T03:49:12Z | |
| dc.description | We calculate the branching ratios of $B_{s,d}\to γγ$ decay in the sequential fourth generation model. We find that the theoretical values of the branching ratios, ${\rm BR}(B_{s}\toγγ)$, including the contributions of $t'$, are much different from the minimal standard model (SM) predictions. The new physics contribution can provide one to two orders enhancement to the standard model prediction of ${\rm BR}(B_{s}\toγγ)$. But due to the tiny values of 4th generation CKM matrix element $V_{t'd}^* V_{t'b}$, the new physics effect on ${\rm BR}(B_{d}\toγγ)$ is very small and can not be distinct from the SM prediction. It is shown that the decay $B_s\to γγ$ can give the test of new physics signals from the 4th generation model. | |
| dc.description | 20 pages, 6 figures | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0302177 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0302177 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/42311 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | $B_{s,d} \to γγ$ Decay with the Fourth Generation | |
| dc.type | text |