The CKM phase $α$ through $B \to a_0 π$

Details The CKM phase $α$ through $B \to a_0 π$ The CKM phase $α$ through $B \to a_0 π$

2000-04-27

arxiv.org/abs/hep-ph/0004244v2

Phys.Rev.D62:111302,2000

Physics

High Energy Physics

High Energy Physics - Phenomenology

11 pages RevTeX, the final version to be published in Phys. Rev. D. A few changes made in the text and the table

Scientific paper

10.1103/PhysRevD.62.111302

We propose the decay modes $B \to a_0 (\to \eta \pi) \pi$ to determine the CKM phase $\alpha$. One can analyze these modes through (i) the $B \to a_0 \pi$ isospin pentagon, (ii) the time dependent Dalitz plot of $B^0(t) \to a_0^{\pm} \pi^{\mp} \to \eta \pi^+ \pi^-$, and (iii) the time dependence of $B^0(t) \to a_0^0 (\to \eta \pi^0) \pi^0$. We show that the $a_0 \pi$ modes have certain advantages as compared to the $\rho \pi$ modes, and strongly recommend the time dependent Dalitz plot analysis in the $a_0 \pi$ channel.

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