Flavor SU(3) analysis of charmless B meson decays to two pseudoscalar mesons

Details Flavor SU(3) analysis of charmless B meson decays to two pseudoscalar mesons Flavor SU(3) analysis of charmless B meson decays to two pseudoscalar mesons

2006-09-13

arxiv.org/abs/hep-ph/0609128v3

JHEP 0612:027,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

22 pages and 2 figures; some comments and references added; more references added, version to appear in journal

Scientific paper

10.1088/1126-6708/2006/12/027

Global fits to charmless B --> PP decays in the framework of flavor SU(3) symmetry are updated and improved without reference to the \sin2\beta measured from the charmonium decay modes. Fit results directly constrain the (\bar\rho,\bar\eta) vertex of the unitarity triangle, and are used to predict the branching ratios and CP asymmetries of all decay modes, including those of the B_s system. Different schemes of SU(3) breaking in decay amplitude sizes are analyzed. The major breaking effect between strangeness-conserving and strangeness-changing decays can be accounted for by including a ratio of decay constants in tree and color-suppressed amplitudes. The possibility of having a new physics contribution to K \pi decays is also examined from the data fitting point of view.

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