On the Dalitz plot analysis of the B --> K eta gamma decays

Abstract

Recently B-factories have published new results on the $B\to K\eta \gamma$ decays being inspired by the theoretical suggestion to search for new physics in $B\to P_1{P}_2\gamma$ decays. Using heavy meson chiral perturbation theory we find mechanism which governs the amplitude in parts of the Dalitz plot where either $K$ or $\eta$ mesons are soft. The dominant contributions in these cases are coming from the nonresonant decay modes. We discuss also $B\to K{\eta }^{\prime }\gamma$ Dalitz plot. Our partially integrated rates are in agreement with the experimental findings.

8 pages, 4 figures

References in corpus (15)

• The Cosmological Parameters 2006
• Big-Bang nucleosynthesis (Particle Data Group mini-review)
• Weak Decays Beyond Leading Logarithms
• Phenomenology of Heavy Meson Chiral Lagrangians
• New Results on B->pi, K, eta Decay Formfactors from Light-Cone Sum Rules
• Mixing and Decay Constants of Pseudoscalar Mesons
• Symmetry-breaking corrections to heavy-to-light B meson form factors at large recoil
• Heavy-to-Light Form Factors in the Final Hadron Large Energy Limit of QCD
• Mixing-induced CP Asymmetries in Radiative B Decays in and beyond the Standard Model
• The photon polarization in B -> X gamma in the standard model
• Mixing-Induced CP Violation in B -> P_1 P_2 gamma in Search of Clean New Physics Signals
• Chiral loop corrections to strong decays of positive and negative parity charmed mesons
• The CP asymmetry in B^0(t) -> K_S π^0 γin the Standard Model
• Observation of B+ -> K+ eta gamma
• Measurement of Branching Fractions in Radiative B Decays to eta K gamma and Search for B Decays to eta' K gamma

Cited by in corpus (2)

• Contributions of $K_0^{\ast }(1430)$ and $K_0^{\ast }(1950)$ in the three-body decays $B\to K\pi h$
• $B\to K{\eta }^{(\prime )}\gamma$ decays in the standard model and in scenarios with universal extra dimensions