Published October 1, 2011
| Version v1
Journal article
Observation of B-→pΛD0 at Belle
Creators
- 1. Department of Physics, National Taiwan University, Taipei (China)
- 2. High Energy Accelerator Research Organization (KEK), Tsukuba (Japan)
Description
We study B- meson decays to pΛD(*)0 final states using a sample of 657x106BB events collected at the Υ(4S) resonance with the Belle detector at the KEKB asymmetric-energy e+e- collider. The observed branching fraction for B-→pΛD0 is (1.43-0.25+0.28±0.18)x10-5 with a significance of 8.1 standard deviations, where the uncertainties are statistical and systematic, respectively. Most of the signal events have the pΛ mass peaking near threshold. No significant signal is observed for B-→pΛD*0 and the corresponding upper limit on the branching fraction is 4.8x10-5 at the 90% confidence level.
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.84.071501;
- arXiv
- arXiv:1108.4271v1;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 84
- Journal Issue
- 7
- Journal Page Range
- p. 071501-071501.7
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 43086752
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ASYMMETRY; B MINUS MESONS; BRANCHING RATIO; D NEUTRAL MESONS; ELECTRONS; KEK LINAC; LAMBDA BARYONS; MASS; PARTICLE DECAY; POSITRONS; PROTONS; RESONANCE; VECTOR MESONS
- Descriptors DEC
- ACCELERATORS; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; B MESONS; BARYONS; BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; CHARM PARTICLES; CHARMED MESONS; D MESONS; DECAY; DIMENSIONLESS NUMBERS; ELEMENTARY PARTICLES; FERMIONS; HADRONS; HYPERONS; LEPTONS; LINEAR ACCELERATORS; MATTER; MESONS; NUCLEONS; PSEUDOSCALAR MESONS; STRANGE PARTICLES
Optional Information
- Notes
- (c) 2011 American Institute of Physics
- Collaborations
- Belle Collaboration