Improved Measurement of CP Asymmetries in B0 -> (ccbar)K0(*) Decays
| dc.creator | Aubert, B. | |
| dc.creator | Collaboration, BABAR | |
| dc.date | 2004-08-25 | |
| dc.date.accessioned | 2026-07-07T11:57:55Z | |
| dc.date.available | 2026-07-07T11:57:55Z | |
| dc.description | We present results on time-dependent CP asymmetries in neutral B decays to several CP eigenstates. The measurements use a data sample of about 227 million Upsilon(4S) -> BBbar decays collected by the BABAR detector at the PEP-II asymmetric-energy B Factory at SLAC. The amplitude of the CP asymmetry, sin2Beta in the Standard Model, is derived from decay-time distributions from events in which one neutral B meson is fully reconstructed in a final state containing a charmonium meson and the other $B$ meson is determined to be either a B0 or B0bar from its decay products. We measure sin2Beta = 0.722 +/- 0.040 (stat.) +/- 0.23 (syst.) in agreement with the Standard Model expectation. | |
| dc.description | 7 pages, 2 postscript figues, submitted to Phys. Rev. Lett | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0408127 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0408127 | |
| dc.identifier | Phys.Rev.Lett.94:161803,2005 | |
| dc.identifier | doi:10.1103/PhysRevLett.94.161803 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/206052 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Improved Measurement of CP Asymmetries in B0 -> (ccbar)K0(*) Decays | |
| dc.type | text |