New Physics Signals through CP Violation in B -> rho,pi

Details New Physics Signals through CP Violation in B -> rho,pi New Physics Signals through CP Violation in B -> rho,pi

2004-07-28

arxiv.org/abs/hep-ph/0407327v1

Int.J.Mod.Phys. A19 (2004) 5477-5484

Physics

High Energy Physics

High Energy Physics - Phenomenology

8 pages, 4 figures, talk given at MRST 2004: From Quarks to Cosmology, Concordia University, Montreal, May 2004

Scientific paper

10.1142/S0217751X04022724

We describe here a method for detecting physics beyond the standard model via CP violation in B->rho,pi decays. Using a Dalitz-plot analysis to obtain alpha, along with an analytical extraction of the various tree (T) and penguin (P) amplitudes, we obtain a criterion for the absence of new physics (NP). This criterion involves the comparison of the measured |P/T| ratio with its value as predicted by QCD factorization. We show that the detection of NP via this method has a good efficiency when compared with the corresponding technique using B->pi,pi decays.

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