Exclusive $B \rar ρ\ell^+ \ell^-$ Decay in the Standard Model with Fourth--Generation
| dc.creator | Zeynali, K. | |
| dc.creator | Bashiry, V. | |
| dc.date | 2008-07-29 | |
| dc.date.accessioned | 2026-07-07T11:45:11Z | |
| dc.date.available | 2026-07-07T11:45:11Z | |
| dc.description | We investigate the influence of the fourth generation of quarks on the branching ratio, the CP-asymmetry and the polarization asymmetries in $B \rar ρ\ell^+ \ell^-$ decay. Taking $|V_{t'd}V_{t'b}|\sim 0.001$ with phase about $10^\circ$, which is consistent with the $sin2ϕ_1$ of the CKM and the $B_d$ mixing parameter $Δm_{B_d}$, we obtain that for both ($μ, τ$) channels the branching ratio is increased and the magnitude of CP-asymmetry and polarization asymmetries decreased by the mass and mixing parameters of the 4th generation of quarks . These results can serve as a good tool to search for new physics effects, precisely, to search for the fourth generation of quarks($t', b')$ via its indirect manifestations in loop diagrams. | |
| dc.description | 17 pages, 7 figures | |
| dc.identifier | https://arxiv.org/abs/0807.4598 | |
| dc.identifier | http://arxiv.org/abs/0807.4598 | |
| dc.identifier | Phys.Rev.D78:033001,2008 | |
| dc.identifier | doi:10.1103/PhysRevD.78.033001 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/201798 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Exclusive $B \rar ρ\ell^+ \ell^-$ Decay in the Standard Model with Fourth--Generation | |
| dc.type | text |