Looking for New Physics in B --> K^* πand B --> ρK Decays

Abstract

B --> K^* πand B --> ρK decays involve the same quark-level processes as B --> πK. Analyzing the measurements of the former decays might be able to shed additional light on the new-physics hints in the current B --> πK data. We perform fits to B --> K^* πand B --> ρK decays, and find that the data can be accommodated within the standard model. However, this agreement is due principally to the large errors in the data, particularly the CP-violating asymmetries. If the errors on the B --> K^* πand B --> ρK observables can be reduced, one will have a clearer sense of whether new physics is present in these decays.

12 pages and 6 plots; version to appear in journal

References in corpus (3)

• The B -> pi K Puzzle: 2009 Update
• Analytic Resolution of Puzzle in $B\to K\pi$ decays
• Constraints on the CKM Angle gamma from B -> K*+- pi-+

Cited by in corpus (6)

• Diagrammatic Analysis of Charmless Three-Body B Decays
• Observation of the rare decay B+->K+pi0pi0 and measurement of the quasi-two body contributions B+->K*(892)+pi0, B+->f0(980)K+ and B+->chic0K+
• Evidence for $CP$ violation in $B^{+}\to K^{\ast }(892{)}^{+}{\pi }^0$ from a Dalitz plot analysis of $B^{+}\to K_{\mathrm{S}}^0{\pi }^{+}{\pi }^0$ decays
• CP Asymmetries in B->K pi, K*pi, rho K Decays
• Searching for New Physics by means of Relative Phases and Moduli of Decay Amplitudes
• Supersymmetric contribution to B to rho K and B to pi K^* decays in SCET