Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2003-11-17
Phys.Rev.Lett.92:181801,2004
Physics
High Energy Physics
High Energy Physics - Experiment
To appear in Phys.Rev.Lett. 7 pages, 1 figure
Scientific paper
10.1103/PhysRevLett.92.181801
Using events in which one of two neutral B mesons from the decay of an Y(4S) meson is fully reconstructed, we determine parameters governing decay (\Delta\Gamma_d/\Gamma_d), CP and T violation (|q/p|), and CP and CPT violation (Rez,Imz). The results, obtained from an analysis of 88 million Y(4S) decays recorded by BABAR, are -- sgn(Re(lambdaCP))\Delta\Gamma_d/Gamma_d = -0.008 +- 0.037 +- 0.018 [ -0.084, 0.068 ] |q/p| = 1.029 +- 0.013 +- 0.011 [ 1.001, 1.057 ] Re(lambdaCP)/|lambdaCP| Rez = 0.014 +- 0.035 +- 0.034 [ -0.072, 0.101 ] Imz = 0.038 +- 0.029 +- 0.025 [ -0.028, 0.104 ]. -- The values inside square brackets indicate the 90% confidence-level intervals. These results are consistent with Standard Model expectations.
Aubert B.
for the BABAR Collaboration
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