Dalitz Plot Analysis of D_s+ -> pi+ pi- pi+

Details Dalitz Plot Analysis of D_s+ -> pi+ pi- pi+ Dalitz Plot Analysis of D_s+ -> pi+ pi- pi+

2008-08-07

arxiv.org/abs/0808.0971v4

Phys.Rev.D79:032003,2009

Physics

High Energy Physics

High Energy Physics - Experiment

13 pages, 6 postscript figures, published in Phys. Rev. D

Scientific paper

10.1103/PhysRevD.79.032003

A Dalitz plot analysis of approximately 13,000 Ds+ decays to pi+pi-pi+ has been performed. The analysis uses a 384 fb-1 data sample recorded by the BaBar detector at the PEP-II asymmetric-energy e+e- storage ring running at center of mass energies near 10.6 GeV. Amplitudes and phases of the intermediate resonances which contribute to this final state are measured. A high precision measurement of the ratio of branching fractions is performed: BR(Ds+ -> pi+pi-pi+)/BR(Ds+ -> K+ K- pi+)=0.199 +/- 0.004 +/- 0.009. Using a model-independent partial wave analysis, the amplitude and phase of the S-wave have been measured.

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