Measurement of B{yields}X{gamma} Decays and Determination of |V{sub td}/V{sub ts}|

Journal Article · Fri Apr 24 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.102.161803· OSTI ID:21316632

Aubert, B; Bona, M; Karyotakis, Y; Lees, J P; Poireau, V; Prencipe, E; Prudent, X; Tisserand, V ^[1]; Garra Tico, J; Grauges, E ^[2]; Lopez, L; Palano, A; Pappagallo, M ^[3]; Eigen, G; Stugu, B; Sun, L ^[4]; Abrams, G S; Battaglia, M; Brown, D N; Cahn, R N ^[5]

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1. Laboratoire de Physique des Particules, IN2P3/CNRS et Universite de Savoie, F-74941 Annecy-Le-Vieux (France)
2. Universitat de Barcelona, Facultat de Fisica, Departament ECM, E-08028 Barcelona (Spain)
3. INFN Sezione di Bari, I-70126 Bari (Italy)
4. University of Bergen, Institute of Physics, N-5007 Bergen (Norway)
5. Lawrence Berkeley National Laboratory and University of California, Berkeley, California 94720 (United States)

Using a sample of 383x10{sup 6} BB events collected by the BABAR experiment, we measure sums of seven exclusive final states B{yields}X{sub d(s)}{gamma}, where X{sub d}(X{sub s}) is a nonstrange (strange) charmless hadronic system in the mass range 0.6-1.8 GeV/c{sup 2}. After correcting for unmeasured decay modes in this mass range, we obtain a branching fraction for b{yields}d{gamma} of (7.2{+-}2.7(stat){+-}2.3(syst))x10{sup -6}. Taking the ratio of X{sub d} to X{sub s} we find {gamma}(b{yields}d{gamma})/{gamma}(b{yields}s{gamma})=0.033{+-}0.013(stat){+-}0.009(syst), from which we determine |V{sub td}/V{sub ts}|=0.177{+-}0.043.

• OSTI ID: 21316632
• Journal Information: Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 16 Vol. 102; ISSN 0031-9007; ISSN PRLTAO
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
B MESONS
BRANCHING RATIO
GAMMA RADIATION
GEV RANGE 01-10
MEV RANGE 100-1000
PARTICLE DECAY
PHOTONS