Branching Fraction Measurements of B+ -> rho+ gamma, B0 -> rho0 gamma, and B0 -> omega gamma

Abstract

We present a study of the decays B+ -> rho+ gamma, B0 -> rho0 gamma, and B0 -> omega gamma. The analysis is based on data containing 347 million BBbar events recorded with the BaBar detector at the PEP-II asymmetric B factory. We measure the branching fractions BR(B+ -> rho+ gamma) = (1.10 +0.37/-0.33 +/- 0.09) x 10-6 and BR(B0 -> rho0 gamma) = (0.79 +0.22/-0.20 +/- 0.06) x 10-6, and set a 90% C.L. upper limit BR(B0 -> omega gamma) < 0.78 x 10-6. We also measure the isospin-averaged branching fraction BR(B->rho/omega gamma) = (1.25 +0.25/-0.24 +/- 0.09) x 10-6, from which we determine |Vtd/Vts| = 0.200 +0.021/-0.020 +/- 0.015, where the first uncertainty is experimental and the second is theoretical.

7 pages, 1 figure, submitted to PRL

References in corpus (5)

• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• The Cosmological Parameters 2006
• Observation of Bs-Bsbar Oscillations
• B->V gamma Beyond QCD Factorisation
• |V_td/V_ts| from B-> V gamma

Cited by in corpus (17)

• B->V gamma Beyond QCD Factorisation
• Deciphering top flavor violation at the LHC with B factories
• New Physics at a Super Flavor Factory
• First observation of the decay $B^{+}\to {\pi }^{+}{\mu }^{+}{\mu }^{-}$
• Measurement of Branching Fractions and CP and Isospin Asymmetries in B -> K*(892) gamma Decays
• Charged-Higgs Collider Signals with or without Flavor
• The rare decays $B_u^{+}\to {\pi }^{+}{\ell }^{+}{\ell }^{-}$, ${\rho }^{+}{\ell }^{+}{\ell }^{-}$ and $B_d^0\to {\ell }^{+}{\ell }^{-}$ in the R-parity violating supersymmetry
• Observation of B0 -> K*0 K*0bar and search for B0 -> K*0 K*0
• Measurement of branching fractions, isospin and CP-violating asymmetries for exclusive \boldmath$b\to d\gamma$ modes
• Investigating The Physics Case of Running a B-Factory at the Y(5S) Resonance
• Understanding Single Tops using Jets
• Time-Dependent {\boldmath $CP$}-Violating Asymmetry in $B^0\to {\rho }^0\gamma$ Decays
• Nonperturbative Charming Penguin Contributions to Isospin Asymmetries in Radiative B decays
• Measurement of $B\to X\gamma$ Decays and Determination of $|V_{td}/V_{ts}|$
• Recent developments in radiative B decays
• |V_td/V_ts| from QCD Sum Rules on the Light-Cone
• Search for $B^0\to K_S^0{K}_S^0\gamma$ decays at Belle