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research article
Measurement of the (B)over-bar -> X-s gamma branching fraction with a sum of exclusive decays
2015
We use 772 x 10(6) B (B) over bar meson pairs collected at the gamma(4S) resonance with the Belle detector to measure the branching fraction for (B) over bar -> X-s gamma Our measurement uses a sum-of-exclusives approach in which 38 of the hadronic final states with strangeness equal to +1, denoted by X-s, are reconstructed. The inclusive branching fraction for M-Xs < 2.8 GeV/c(2), which corresponds to a minimum photon energy of 1.9 GeV, is measured to be B(<(B)over bar> -> X-s gamma) = (3.51 +/- 0.17 +/- 0.33) x 10(-4), where the first uncertainty is statistical and the second is systematic.
Type
research article
Web of Science ID
WOS:000350601200001
Authors
Saito, T.
•
Ishikawa, A.
•
Yamamoto, H.
•
Abdesselam, A.
•
Adachi, I.
•
Aihara, H.
•
Al Said, S.
•
Arinstein, K.
•
Asner, D. M.
•
Aushev, T.
Corporate authors
Belle Collaboration
Publication date
2015
Publisher
Published in
Volume
91
Issue
5
Article Number
052004
Peer reviewed
REVIEWED
EPFL units
Available on Infoscience
April 13, 2015
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