Measurement of B -> X gamma Decays and Determination of |V-td/V-ts|

Measurement of B -> X gamma Decays and Determination of |V-td/V-ts|

Using a sample of 383×106 BB̄ events collected by the BABAR experiment, we measure sums of seven exclusive final states B→Xd(s)γ, where Xd(Xs) is a nonstrange (strange) charmless hadronic system in the mass range 0.6-1.8GeV/c2. After correcting for unmeasured decay modes in this mass range, we obtai...

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Bibliographic Details
Main Authors: Aubert, B, Bona, M, Karyotakis, Y, Lees, J, Poireau, V, Prencipe, E, Prudent, X, Tisserand, V, Tico, J, Grauges, E, Lopez, L, Palano, A, Pappagallo, M, Eigen, G, Stugu, B, Sun, L, Abrams, G, Battaglia, M, Brown, D, Cahn, R, Jacobsen, R, Kerth, LT, Kolomensky, Y, Lynch, G, Osipenkov, I
Format: Journal article
Published: 2009
Description
Summary:Using a sample of 383×106 BB̄ events collected by the BABAR experiment, we measure sums of seven exclusive final states B→Xd(s)γ, where Xd(Xs) is a nonstrange (strange) charmless hadronic system in the mass range 0.6-1.8GeV/c2. After correcting for unmeasured decay modes in this mass range, we obtain a branching fraction for b→dγ of (7.2±2.7(stat)±2.3(syst))×10-6. Taking the ratio of Xd to Xs we find Γ(b→dγ)/Γ(b→sγ)=0.033±0. 013(stat)±0.009(syst), from which we determine |Vtd/Vts|=0.177±0. 043. © 2009 The American Physical Society.

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