Journal
PHYSICAL REVIEW LETTERS
Volume 109, Issue 19, Pages -Publisher
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.109.191801
Keywords
-
Categories
Funding
- DOE (USA)
- NSF (USA)
- NSERC (Canada)
- CEA (France)
- CNRS-IN2P3 (France)
- BMBF (Germany)
- DFG (Germany)
- INFN (Italy)
- FOM (The Netherlands)
- NFR (Norway)
- MES (Russia)
- MICIIN (Spain)
- STFC (United Kingdom)
- Marie Curie EIF (European Union)
- A. P. Sloan Foundation (USA)
- Science and Technology Facilities Council [ST/K001418/1] Funding Source: researchfish
- Direct For Mathematical & Physical Scien
- Division Of Physics [0969487] Funding Source: National Science Foundation
Ask authors/readers for more resources
The photon spectrum in the inclusive electromagnetic radiative decays of the B meson, B --> X-s gamma plus B --> X-d gamma, is studied using a data sample of (382.8 +/- 4.2) x 10(6)Y(4S) --> B (B) over bar decays collected by the BABAR experiment at SLAC. The spectrum is used to extract the branching fraction B(B --> X-s gamma) = (3.21 +/- 0.33) x 10(-4) for E-gamma > 1.8 GeV and the direct CP asymmetry A(CP)(B --> Xs+d gamma) = 0.057 +/- 0.063. The effects of detector resolution and Doppler smearing are unfolded to measure the photon energy spectrum in the B meson rest frame.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available