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

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

2009-04-15

arxiv.org/abs/0904.2235v2

Mod.Phys.Lett.24:1983-1994,2009

Physics

High Energy Physics

High Energy Physics - Phenomenology

12 pages and 6 plots; version to appear in journal

Scientific paper

10.1142/S0217732309031429

B --> K^* \pi and B --> \rho K decays involve the same quark-level processes as B --> \pi K. Analyzing the measurements of the former decays might be able to shed additional light on the new-physics hints in the current B --> \pi K data. We perform fits to B --> K^* \pi and B --> \rho K 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^* \pi and B --> \rho K observables can be reduced, one will have a clearer sense of whether new physics is present in these decays.

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