Physics – High Energy Physics – High Energy Physics - Experiment
Scientific paper
2008-11-22
Phys.Rev.D79:072004,2009
Physics
High Energy Physics
High Energy Physics - Experiment
27 pages, 7 figures, Contributed to ICHEP 2008, Submitted to PRD
Scientific paper
10.1103/PhysRevD.79.072004
We present a time-dependent Dalitz plot measurement of CP violation parameters in B0 --> Ks Pi+ Pi- decays. These results are obtained from a large data sample that contains 657 million BBbar pairs collected at the Y(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. For the CP violation parameters, we obtain two consistent solutions that describe the data well. The first of these solutions may be preferred by external information from other measurements. There is no evidence for direct CP violation in B0 --> rho0(770) Ks, B0 --> f0(980) Ks and B0 --> K*+(892) Pi-, while measurements of mixing-induced CP violation in B0 --> rho0(770) Ks, B0 --> f0(980) Ks decays are consistent with that of b --> c cbar s decays. We also measured the phase difference between B0 --> K*+(892) Pi- and B0B --> K*-(892) Pi+ which may be used to extract phi3.
Dalseno J.
for the Belle Collaboration
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