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arXiv · hep-ph/9404283

Decays of $B$ Mesons to Two Light Pseudoscalars

Michael Gronau·Oscar F. Hernandez·David London·Jonathan L. Rosner
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Abstract

The decays $B \to PP$, where $P$ denotes a pseudoscalar meson, are analyzed, with emphasis on charmless final states. Numerous triangle relations for amplitudes hold within SU(3) symmetry, relating (for example) the decays $B^+ \to π^+ π^0,~ π^0 K^+$, and $π^+ K^0$. Such relations can improve the possibilities for early detection of $CP$-violating asymmetries. Within the context of a graphical analysis of decays, relations are analyzed among SU(3) amplitudes which hold if some graphs are neglected. One application is that measurements of the rates for the above three $B^+$ decays and their charge-conjugates can be used to determine a weak CKM phase. With measurements of the remaining rates for $B$ decays to $ππ,~πK$, and $K \bar K$, one can obtain two CKM phases and several differences of strong phase shifts.

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Michael Gronau, Oscar F. Hernandez, David London, Jonathan L. Rosner. 1994-04-18. Decays of $B$ Mesons to Two Light Pseudoscalars. https://doi.org/10.1103/physrevd.50.4529

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