QCD factorisation and flavour symmetries illustrated in B_d,s -> KK decays
| dc.creator | Descotes-Genon, S. | |
| dc.date | 2007-02-01 | |
| dc.date.accessioned | 2026-07-07T07:44:13Z | |
| dc.date.available | 2026-07-07T07:44:13Z | |
| dc.description | We present a new analysis of B_d,s -> KK modes within the SM, relating them in a controlled way through SU(3)-flavour symmetry and QCD-improved factorisation. We propose a set of sum rules for B_d,s -> K^0 \bar K^0 observables. We determine B_s -> KK branching ratios and CP-asymmetries as functions of A_dir(B_d -> K^0 \bar K^0), with a good agreement with current experimental measurements of CDF. Finally, we predict the amount of U-spin breaking between B_d -> pi+ pi- and B_s -> K+K-. | |
| dc.description | 4 pages, 2 figures. Talk given at the 4th International Workshop on the CKM Unitarity Triangle (CKM2006), 12-16 December 2006, Nagoya, Japan, to appear in the proceedings (KEK Report) | |
| dc.identifier | https://arxiv.org/abs/hep-ph/0702013 | |
| dc.identifier | http://arxiv.org/abs/hep-ph/0702013 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/123120 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | QCD factorisation and flavour symmetries illustrated in B_d,s -> KK decays | |
| dc.type | text |