Final state strong interaction constraints on weak D0 -> K0S pi+ pi- decay amplitudes

A. Furman; B. Loiseau; J.-P. Dedonder; L. Lesniak; R. Kaminski

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Final state strong interaction constraints on weak D0 -> K0S pi+ pi- decay amplitudes

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arxiv 1209.5951 v1 pith:WO2EBGNU submitted 2012-09-26 hep-ph

B. Loiseau , J.-P. Dedonder , A. Furman , R. Kaminski , L. Lesniak This is my paper

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Weak decay tree and annihilation - t-channel W - exchange amplitudes for the D0 -> K0S pi+ pi- process are calculated using quasi two-body QCD factorization approach and unitarity constraints. Final state strong kaon-pion and pion-pion interactions in S, P and D waves are described through corresponding form factors including many resonances. Preliminary results compare well with the effective mass distributions of the Belle and BABAR Collaboration analyses.

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