Measurements of the CKM Angle beta/phi_1 at B Factories
| dc.creator | Cheng, Chih-hsiang | |
| dc.date | 2007-07-09 | |
| dc.date | 2007-07-10 | |
| dc.date.accessioned | 2026-07-07T10:36:16Z | |
| dc.date.available | 2026-07-07T10:36:16Z | |
| dc.description | We present a review of the measurements of the CKM angle beta (phi_1) by the BaBar and Belle experiments at the asymmetric-energy e+e- B Factories PEP-II and KEKB. The angle beta (phi_1) is measured by time-dependent CP analyses of neutral B meson decays in a Upsilon(4S)->BBbar system, where one B meson is fully reconstructed in a final state that can be accessed to by both B0 and B0bar, usually a CP eigenstate. This angle has been measured at a high precision through B0-> (ccbar)K0 channels. We also review another tree-dominated decay B0-> D(*)0 h0 (h0 = pi0, eta^{'}, omega); tree decays with penguin pollutions, B0->D(*)+-D-+$ and J/psi pi0; and penguin dominated modes, B0-> eta^'K0, K+K-K0, and KsKsKs. A hint of sin2beta (sin2phi_1) in charmless modes less than (ccbar)K0 modes still persists, which may be an indication of possible new physics entering the loop in the penguin diagram. | |
| dc.description | 6 pages, 5 figures, Flavor Physics & CP Violation Conference, Bled, 2007 | |
| dc.identifier | https://arxiv.org/abs/0707.1192 | |
| dc.identifier | http://arxiv.org/abs/0707.1192 | |
| dc.identifier | ECONFC070512:010,2007 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/179998 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Measurements of the CKM Angle beta/phi_1 at B Factories | |
| dc.type | text |