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Measurement of the B -> X-s gamma branching fraction and photon energy spectrum using the recoil method

Abstract:

We present a measurement of the branching fraction and photon-energy spectrum for the decay B→Xsγ using data from the BABAR experiment. The data sample corresponds to an integrated luminosity of 210fb-1, from which approximately 680000 BB̄ events are tagged by a fully reconstructed hadronic decay of one of the B mesons. In the decay of the second B meson, an isolated high-energy photon is identified. We measure B(B→Xsγ)=(3. 66±0.85stat±0.60syst)×10-4 for photon energies Eγ above 1.9GeV in the...

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Publication status:
Published

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Publisher copy:
10.1103/PhysRevD.77.051103

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Journal:
PHYSICAL REVIEW D
Volume:
77
Issue:
5
Publication date:
2008-03-05
DOI:
EISSN:
1550-2368
ISSN:
1550-7998
URN:
uuid:a787f474-a311-492e-892d-21fa56e71d80
Source identifiers:
211296
Local pid:
pubs:211296
Language:
English

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