Journal article
Measurements of the B -> X-s gamma branching fraction and photon spectrum from a sum of exclusive final states
- Abstract:
-
Using 88.9 million BB̄ events collected by the BABAR detector at the Υ(4S), we measure the branching fraction for the radiative penguin process B→Xsγ from the sum of 38 exclusive final states. The inclusive branching fraction above a minimum photon energy Eγ>1.9GeV is B(b→sγ)=(3.27±0.18(stat)-0.40+0.55(syst)-0.09+0.04(theory)) ×10-4. We also measure the isospin asymmetry between B- →Xsūγ and B̄0→Xsd̄γ to be Δ0-=-0.006±0.058(stat)±0.009(syst)±0.024(B̄0/B-) . The photon energy spectrum is me...
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- Publication status:
- Published
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Bibliographic Details
- Journal:
- Physical Review D
- Volume:
- 72
- Issue:
- 5
- Publication date:
- 2005-09-01
- DOI:
- EISSN:
-
1550-2368
- ISSN:
-
1550-7998
Item Description
- Language:
- English
- Pubs id:
-
pubs:2757
- UUID:
-
uuid:88270b0c-24af-4050-b36a-6a8e44666506
- Local pid:
- pubs:2757
- Source identifiers:
-
2757
- Deposit date:
- 2012-12-19
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- Copyright date:
- 2005
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