Study of T and CP violation in B^0-anti-B^0 mixing with inclusive dilepton events
| dc.creator | Aubert, B. | |
| dc.date | 2001-07-22 | |
| dc.date.accessioned | 2026-07-07T06:28:42Z | |
| dc.date.available | 2026-07-07T06:28:42Z | |
| dc.description | We report a study of T and CP violation in $B^0$-$\bar B^0$ mixing using an inclusive dilepton sample collected by the BABAR experiment at the PEP-II $B$ Factory. The asymmetry between $\ell^+\ell^+$ and $\ell^-\ell^-$ allows us to compare the probabilities for $\bar B^0 \to B^0$ and $B^0 \to \bar B^0$ oscillations and thus probe T and CP invariance. A sample of 20,381 same-sign dilepton events is selected in the 1999--2000 data sample, corresponding to an integrated luminosity of 20.7 fb$^{-1}$ on the $Υ(4S)$ resonance. We measure a same-sign dilepton asymmetry of $A_T=(0.5\pm 1.2\pm 1.4)%$; for the parameter $ε_b$ representing T and CP violations in mixing, we obtain a preliminary result of $$ \frac{{\mathrm Re}(ε_b)}{1+|ε_b|^2} = (1.2\pm 2.9\pm 3.6) \times 10^{-3}. $$ | |
| dc.description | 18 pages, 4 figures, conference paper contributed to LP01 | |
| dc.identifier | https://arxiv.org/abs/hep-ex/0107059 | |
| dc.identifier | http://arxiv.org/abs/hep-ex/0107059 | |
| dc.identifier.uri | http://salesiana.dossiersoluciones.com/handle/123456789/97788 | |
| dc.subject | High Energy Physics - Experiment | |
| dc.title | Study of T and CP violation in B^0-anti-B^0 mixing with inclusive dilepton events | |
| dc.type | text |