Measurement of the branching fraction with a sum of exclusive decays
Journal Article
·
· Physical Review. D, Particles, Fields, Gravitation and Cosmology
We use 772 × 106 BB-bar meson pairs collected at the Υ(4S) resonance with the Belle detector to measure the branching fraction for B-bar → Xsγ. Our measurement uses a sum-of-exclusives approach in which 38 of the hadronic final states with strangeness equal to +1, denoted by Xs, are reconstructed. The inclusive branching fraction for MXs < 2.8 GeV/c², which corresponds to a minimum photon energy of 1.9 GeV, is measured to be B(B-bar → Xsγ)=(3.51±0.17±0.33) × 10–4, where the first uncertainty is statistical and the second is systematic.
- Research Organization:
- Pacific Northwest National Lab. (PNNL), Richland, WA (United States); Virginia Polytechnic Inst. and State Univ. (Virginia Tech), Blacksburg, VA (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), High Energy Physics (HEP)
- Contributing Organization:
- Belle Collaboration
- Grant/Contract Number:
- AC05-76RL01830; P 22742-N16; P 26794-N20; 10575109; 10775142; 10825524; 10875115; 10935008; 11175187; 2011-0029457; 2012-0008143; 2012R1A1A2008330; 2013R1A1A3007772; 2014R1A2A2A01005286; 2014R1A2A2A01002734; 2014R1A1A2006456; KRF-2011-0020333; KRF-2011-0021196; LG14034; NRF-2013K1A3A7A06056592; SC0009973
- OSTI ID:
- 1224591
- Alternate ID(s):
- OSTI ID: 1214665; OSTI ID: 1594435
- Journal Information:
- Physical Review. D, Particles, Fields, Gravitation and Cosmology, Journal Name: Physical Review. D, Particles, Fields, Gravitation and Cosmology Vol. 91 Journal Issue: 5; ISSN 1550-7998
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Cited by: 36 works
Citation information provided by
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