The Golden Modes B^0 -> J/psi K_{S,L} in the Era of Precision Flavour Physics
| dc.creator | Faller, Sven | |
| dc.creator | Fleischer, Robert | |
| dc.creator | Jung, Martin | |
| dc.creator | Mannel, Thomas | |
| dc.date | 2008-09-04 | |
| dc.date.accessioned | 2026-07-07T12:46:29Z | |
| dc.date.available | 2026-07-07T12:46:29Z | |
| dc.description | The B^0 -> J/ψK_{S,L} channels are outstanding probes of CP violation. We have a detailed look at the associated Standard-Model uncertainties, which are related to doubly Cabibbo-suppressed penguin contributions, and point out that these usually neglected effects can actually be taken into account unambiguously through the CP asymmetries and the branching ratio of the B^0 -> J/ψpi^0 decay. Using the most recent B-factory measurements, we find a negative shift of the extracted value of beta, which softens the tension in the fits of the unitarity triangle. In addition, this strategy can be used to constrain a possible new-physics phase in B^0-\bar B^0 mixing. The proposed strategy is crucial to fully exploit the tremendous accuracies for the search for this kind of new physics that can be achieved at the LHC and future super-flavour factories. | |
| dc.description | 4+1 pages, 4 figures | |
| dc.identifier | https://arxiv.org/abs/0809.0842 | |
| dc.identifier | http://arxiv.org/abs/0809.0842 | |
| dc.identifier | Phys.Rev.D79:014030,2009 | |
| dc.identifier | doi:10.1103/PhysRevD.79.014030 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/221398 | |
| dc.subject | High Energy Physics - Phenomenology | |
| dc.title | The Golden Modes B^0 -> J/psi K_{S,L} in the Era of Precision Flavour Physics | |
| dc.type | text |