Abstract
We report a measurement of the CP-odd fraction and the time-dependent CP violation in B0→D*+D*- decays, using 657×106 BB̄ events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. We measure a CP-odd fraction of R=0.125±0.043(stat)±0.023(syst). From the distributions of the proper-time intervals between a B0→D*+D*- decay and the other B meson in the event, we obtain evidence of CP violation with measured parameters AD*+D*-=0.15±0.13(stat)±0.04(syst) and SD*+D*-=-0.96±0.25(stat)-0.16+0.13(syst).
Original language | English |
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Article number | 111104 |
Journal | Physical Review D - Particles, Fields, Gravitation and Cosmology |
Volume | 80 |
Issue number | 11 |
DOIs | |
Publication status | Published - 2009 Dec 14 |
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Physics and Astronomy (miscellaneous)