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Exclusive measurements of b→sγ transition rate and photon energy spectrum
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BaBar Collaboration (Including:
). (2012) Exclusive measurements of b→sγ transition rate and photon energy spectrum. Physical Review D (Particles, Fields, Gravitation and Cosmology), Vol.86 (No.5). Article no. 052012. doi:10.1103/PhysRevD.86.052012 ISSN 1550-7998.Research output not available from this repository.
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Official URL: http://dx.doi.org/10.1103/PhysRevD.86.052012
Abstract
We use 429 fb(-1) of e(+)e(-) collision data collected at the Gamma(4S) resonance with the BABAR detector to measure the radiative transition rate of b -> s gamma with a sum of 38 exclusive final states. The inclusive branching fraction with a minimum photon energy of 1.9 GeV is found to be B((B) over bar -> X-s gamma) = (3.29 +/- 0.19 +/- 0.48) x 10(-4) where the first uncertainty is statistical and the second is systematic. We also measure the first and second moments of the photon energy spectrum and extract the best-fit values for the heavy-quark parameters, m(b) and mu(2)(pi), in the kinetic and shape function models.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||
| Journal or Publication Title: | Physical Review D (Particles, Fields, Gravitation and Cosmology) | ||||
| Publisher: | American Physical Society | ||||
| ISSN: | 1550-7998 | ||||
| Official Date: | 26 September 2012 | ||||
| Dates: |
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| Volume: | Vol.86 | ||||
| Number: | No.5 | ||||
| Page Range: | Article no. 052012 | ||||
| DOI: | 10.1103/PhysRevD.86.052012 | ||||
| Status: | Peer Reviewed | ||||
| Publication Status: | Published | ||||
| Access rights to Published version: | Restricted or Subscription Access |
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