Hints of large tan(beta) in flavour physics
| dc.creator | Isidori, Gino | |
| dc.creator | Paradisi, Paride | |
| dc.date | 2006-04-30 | |
| dc.date | 2007-06-19 | |
| dc.date.accessioned | 2026-07-07T11:05:02Z | |
| dc.date.available | 2026-07-07T11:05:02Z | |
| dc.description | Motivated by the first evidence of the B -> tau nu transition reported by Belle and by the precise DeltaM_{B_s} measurement by CDF, we analyse these and other low-energy observables in the framework of the MSSM at large tan(beta). We show that for heavy squarks and A terms (M_squarks, A_U > 1 TeV) such scenario has several interesting virtues. It naturally describes: i) a suppression of BR(B->tau nu) of (10-40)%, ii) a sizable enhancement of (g-2)_mu, iii) a heavy SM-like Higgs (m_h ~ 120 GeV), iv) small non-standard effects in DeltaM_{B_s} and BR(B -> X_s gamma) (in agreement with present observations). The possibilities to find more convincing evidences of such scenario, with improved data on BR(B -> tau nu), BR(B -> l+ l-) and other low-energy observables, are briefly discussed. | |
| dc.description | 15 pages, 10 figures; v3: numerical value in Eq.(6) corrected with respect to publ. version (discussion/conclusions unchanged) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0605012 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0605012 | |
| dc.identifier | Phys.Lett.B639:499-507,2006 | |
| dc.identifier | doi:10.1016/j.physletb.2006.06.071 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/189091 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | Hints of large tan(beta) in flavour physics | |
| dc.type | text |