|
|||||
|
|
Search for T and CP violation in B0-B-0 mixing with inclusive dilepton events |
|
| Authors: | Aubert B Boutigny D Gaillard J-M Hicheur A Karyotakis Y Lees J P Robbe P Tisserand V Zghiche A Palano A Pompili A Chen G P Chen J C Qi N D Rong G Wang P Zhu Y S Eigen G Stugu B Abrams G S Borgland A W Breon A B Brown D N Button-Shafer J Cahn R N Gill M S Gritsan A V Groysman Y Jacobsen R G Kadel R W Kadyk J Kerth L T Kolomensky Yu G Kral J F LeClerc C Levi M E Lynch G Oddone P J Pripstein M Roe N A Romosan A Ronan M T Shelkov V G Telnov A V Wenzel W A Harrison T J Hawkes C M Knowles D J O'Neale S W Penny R C Watson A T Watson N K Deppermann T Goetzen K Koch H Kunze M Lewandowski B Peters K |
| Affiliation: | Laboratoire de Physique des Particules, F-74941 Annecy-le-Vieux, France. |
| Abstract: | We report the results of a search for T and CP violation in B0-B-0 mixing using an inclusive dilepton sample collected by the BABAR experiment at the PEP-II B Factory. The asymmetry between l+l+ and l-l- events allows us to compare the probabilities for B-0-->B0 and B0-->B-0 oscillations and thus probe T and CP invariance. Using a sample of 23 x 10(6) BB- pairs, we measure a same-sign dilepton asymmetry of A(T/CP) = 0.5+/-1.2(stat)+/-1.4(syst)]%. For the modulus of the ratio of complex mixing parameters p and q, we obtain q/p = 0.998+/-0.006(stat)+/-0.007(syst). |
| Keywords: | |
| 本文献已被 PubMed 等数据库收录！ | |
