Photon polarization in radiative B decays

Abstract

We study decay distributions in B -> K pi pi gamma, combining contributions from several overlapping resonances in a K pi pi mass range near 1400 MeV, (1^+) K_1(1400), (2^+) K^*_2(1430) and (1^-) K^*(1410). A method is proposed for using these distributions to determine a photon polarization parameter in the effective radiative weak Hamiltonian. This parameter is measured through an up-down asymmetry of the photon direction relative to the K pi pi decay plane. We calculate a dominant up-down asymmetry of 0.33 +- 0.05 from the K1(1400) resonance, which can be measured with about 10^8 B B-bar pairs, thus providing a new test for the Standard Model and a probe for some of its extensions.

22 pages, 3 figures, version to appear in Phys. Rev. D

References in corpus (10)

• Systematic approach to exclusive B ->V l^+l^-, V gamma decays
• Branching Fraction and Photon Energy Spectrum b -> s gamma
• A Measurement of the Branching Fraction for the Inclusive B --> X(s) gamma Decays with the Belle Detector
• The Radiative Decays B -> V gamma at Next-to-Leading Order in QCD
• Branching Ratios for $B\to K^{\ast }\gamma$ and $B\to \rho \gamma$ Decays in Next-to-Leading Order in the Large Eneregy Effective Theory
• Measuring the Photon Helicity in Radiative B Decays
• Probing for New Physics in Polarized ${\Lambda }_b$ decays at the Z
• Alternative approach to $b->s\gamma$ in the uMSSM
• Measurement of B-->K*gamma Branching Fractions and Charge Asymmetries
• Rare radiative B decays to orbitally excited K mesons

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