Aubert, B;
Bona, M;
Boutigny, D;
Karyotakis, Y;
Lees, JP;
Poireau, V;
Prudent, X;
... Neal, H; + view all
(2007)
Branching fraction measurements of B+->rho(+)gamma, B-0 ->rho(0)gamma, and B-0 ->omega gamma.
PHYS REV LETT
, 98
(15)
, Article 151802. 10.1103/PhysRevLett.98.151802.
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Abstract
We present a study of the decays B+->rho(+)gamma, B-0 ->rho(0)gamma, and B-0 ->omega gamma. The analysis is based on data containing 347x10(6) B (B) over bar events recorded with the BABAR detector at the PEP-II asymmetric B factory. We measure the branching fractions B(B+->rho(+)gamma)=(1.10(-0.33)(+0.37)+/- 0.09)x10(-6) and B(B-0 ->rho(0)gamma)=(0.79(-0.20)(+0.22)+/- 0.06)x10(-6), and set a 90% C.L. upper limit B(B-0 ->omega gamma)< 0.78x10(-6). We also measure the isospin-averaged branching fraction B(B ->(rho/omega)gamma)=(1.25(-0.24)(+0.25)+/- 0.09)x10(-6), from which we determine vertical bar V-td/V-ts vertical bar=0.200(-0.020)(+0.021)+/- 0.015, where the first uncertainty is experimental and the second is theoretical.
| Type: | Article |
|---|---|
| Title: | Branching fraction measurements of B+->rho(+)gamma, B-0 ->rho(0)gamma, and B-0 ->omega gamma |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.98.151802 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.98.151802 |
| Language: | English |
| Additional information: | © 2007 The American Physical Society |
| Keywords: | TO-LEADING ORDER, RADIATIVE DECAYS, B-DECAYS, SUPERSYMMETRY, RATIOS, GAMMA, QCD |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences |
| URI: | https://discovery-pp.ucl.ac.uk/id/eprint/1303842 |
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