Published September 1, 2010
| Version v1
Journal article
Study of B→Xγ decays and determination of |Vtd/Vts|
Creators
- del Amo Sanchez, P.1
- Lees, J. P.1
- Poireau, V.1
- Prencipe, E.1
- Tisserand, V.1
- Garra Tico, J.2
- Grauges, E.2
- Martinelli, M.3, 4
- Palano, A.3, 4
- Pappagallo, M.3, 4
- Eigen, G.5
- Stugu, B.5
- Sun, L.5
- Battaglia, M.6
- Brown, D. N.6
- Hooberman, B.6
- Kerth, L. T.6
- Kolomensky, Yu. G.6
- Lynch, G.6
- Osipenkov, I. L.6
- and others
- BABAR Collaboration
- 1. Laboratoire d'Annecy-le-Vieux de Physique des Particules (LAPP), Universite de Savoie, CNRS/IN2P3, F-74941 Annecy-Le-Vieux (France)
- 2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
- 3. Dipartimento di Fisica, Universita di Bari, I-70126 Bari (Italy)
- 4. INFN Sezione di Bari, I-70126 Bari (Italy)
- 5. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
- 6. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)
Description
Using a sample of 471x106 BB events collected with the BABAR detector, we study the sum of seven exclusive final states B→Xs(d)γ, where Xs(d) is a strange (nonstrange) hadronic system with a mass of up to 2.0 GeV/c2. After correcting for unobserved decay modes, we obtain a branching fraction for b→dγ of (9.2±2.0(stat)±2.3(syst))x10-6 in this mass range, and a branching fraction for b→sγ of (23.0±0.8(stat)±3.0(syst))x10-5 in the same mass range. We find (B(b→dγ)/B(b→sγ))=0.040±0.009(stat)±0.010(syst), from which we determine |Vtd/Vts|=0.199±0.022(stat)±0.024(syst)±0.002(th).
Additional details
Identifiers
- DOI
- 10.1103/PhysRevD.82.051101;
- arXiv
- arXiv:1005.4087v1;
Publishing Information
- Journal Title
- Physical Review. D, Particles Fields
- Journal Volume
- 82
- Journal Issue
- 5
- Journal Page Range
- p. 051101-051101.8
- ISSN
- 0556-2821
- CODEN
- PRVDAQ
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 42021687
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- B MESONS; BRANCHING RATIO; GAMMA RADIATION; GEV RANGE 01-10; HADRONS; MASS; RADIATIVE DECAY
- Descriptors DEC
- BEAUTY MESONS; BEAUTY PARTICLES; BOSONS; DECAY; DIMENSIONLESS NUMBERS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; GEV RANGE; HADRONS; IONIZING RADIATIONS; MESONS; PARTICLE DECAY; PSEUDOSCALAR MESONS; RADIATIONS
Optional Information
- Notes
- (c) 2010 American Institute of Physics
- Collaborations
- BABAR Collaboration