Physics – High Energy Physics – High Energy Physics - Phenomenology
Scientific paper
2010-01-29
Phys.Rev.D81:094033,2010; Erratum-ibid.D82:119906,2010
Physics
High Energy Physics
High Energy Physics - Phenomenology
Comments: 22 pages, 2 figures and 3 tables. In this new version, the results are unchanged, but, the last paragraph of the Sec
Scientific paper
10.1103/PhysRevD.81.094033 10.11
Charged and neutral B decays into two charged pions and a charged or a neutral kaon are analyzed within the QCD factorization scheme where final state interactions before and after hadronization are included. The K*(892) and K*(1430) resonance effects are taken into account using the presently known pion-Kaon strange vector and scalar form factors. The weak decay amplitudes, which are calculated at leading power in Lambda_QCD/m_b and at the next-to-leading order in the strong coupling constant, include the hard scattering and annihilation contributions. The end point divergences of these weak final state interactions are controlled by two complex parameters determined through a fit to the available effective mass and helicity angle distribution, CP asymmetry and K*(892) branching ratio data. The predicted K*(1430) branching ratios and the calculated direct CP violation asymmetries are compared to the Belle and BABAR Collaboration data.
Dedonder Jean-Pierre
Kaminski Robert
Leitner Olivier
Loiseau Benoit
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