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Branching fraction, polarization and CP-violating asymmetries in B0→D*+D*− decays
- Source :
- Physics Letters B. 618:34-42
- Publication Year :
- 2005
- Publisher :
- Elsevier BV, 2005.
-
Abstract
- We present measurements of the branching fraction, the polarization parameters and CP-violating asymmetries in B0→D*+D *- decays using a 140 fb-1 data sample collected at the Υ(4S) resonance with the Belle detector at the KEKB energy-asymmetric e+e- collider. We obtain B(B0→D*+D*-)=[0. 81±0.08(stat)±0.11(syst)]×10-3, R⊥=0.19±0. 08(stat)±0.01(syst), R0=0.57±0.08(stat)±0.02(syst), S=-0.75±0.56(stat)±0.12(syst) and A=-0.26±0.26(stat) ±0.06(syst). Consistency with Standard Model expectations is also discussed.
- Subjects :
- Physics
Nuclear and High Energy Physics
Particle physics
Branching fraction
Electron–positron annihilation
Astrophysics::Cosmology and Extragalactic Astrophysics
Polarization (waves)
Nuclear physics
KEKB
CP violation
High Energy Physics::Experiment
Astrophysics::Earth and Planetary Astrophysics
Nuclear Experiment
Astrophysics::Galaxy Astrophysics
Subjects
Details
- ISSN :
- 03702693
- Volume :
- 618
- Database :
- OpenAIRE
- Journal :
- Physics Letters B
- Accession number :
- edsair.doi...........b33ba7897659a4921f2ccacc56fa78aa