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arXiv · hep-ph/9804222

Procedure for direct measurement of the Cabibbo-Kobayashi-Maskawa angle $γ$

I. Bediaga·R. E. Blanco·C. Göbel·R. Méndez--Galain
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Abstract

A natural procedure is presented to measure the angle $γ$ from the decay $B^{\pm} \to π^{\pm}π^+π^-$. It is based in the Dalitz plot fitting analysis. Neither amplitudes nor strong phases have to be known a priori. We present simulations of this decay computing both statistical and theoretical uncertainties and analyze the experimental feasibility. We found that $γ$ could be measured with a combined error of the order of 20$^o$ with 90% of CL after about a couple of years of running of the first generation of B factories.

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I. Bediaga, R. E. Blanco, C. Göbel, R. Méndez--Galain. 1998-11-07. Procedure for direct measurement of the Cabibbo-Kobayashi-Maskawa angle $γ$. https://doi.org/10.1103/physrevlett.81.4067

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