Aubert, B;
Barate, R;
Boutigny, D;
Gaillard, JM;
Hicheur, A;
Karyotakis, Y;
Lees, JP;
... BaBar Collaboration, .; + view all
(2004)
Search for the radiative decays B ->rho gamma and B-0 ->omega gamma.
PHYS REV LETT
, 92
(11)
, Article 111801. 10.1103/PhysRevLett.92.111801.
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Abstract
A search of the exclusive radiative decays B-->rho(770)gamma and B-0-->omega(782)gamma is performed on a sample of about 84x10(6) B (B) over bar events collected by the BABAR detector at the SLAC PEP-II asymmetric-energy e(+)e(-) storage ring. No significant signal is seen in any of the channels. We set upper limits on the branching fractions B of B(B-0-->rho(0)gamma)<1.2x10(-6), B(B+-->rho(+)gamma)<2.1x10(-6), and B(B-0-->omegagamma)<1.0x10(-6) at 90% confidence level (C.L.). Using the assumption that Gamma(B-->rhogamma)=Gamma(B+-->rho(+)gamma)=2xGamma(B-0-->rho(0)gamma), we find the combined limit B(B-->rhogamma)<1.9x10(-6), corresponding to B(B-->rhogamma)/B(B-->K(*)gamma)<0.047 at 90% C.L.
| Type: | Article |
|---|---|
| Title: | Search for the radiative decays B ->rho gamma and B-0 ->omega gamma |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevLett.92.111801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevLett.92.111801 |
| Language: | English |
| Additional information: | The American Physical Society |
| Keywords: | TO-LEADING ORDER, B-MESONS, SUPERSYMMETRY, GAMMA, QCD |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences UCL > Provost and Vice Provost Offices > School of Life and Medical Sciences > Faculty of Brain Sciences 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/1303646 |
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