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arXiv · hep-ex/0207067

Dalitz Analysis of D^0 --> K_S^0 pi+ pi-

H. Muramatsu·CLEO Collaboration
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Abstract

In e^+e^- collisions using the CLEO detector we have studied the decay of the D^0 to the final state K_S^0 pi^+ pi^- with the initial flavor of the D^0 tagged in charged D^* decay. We use the Dalitz technique to measure the resonant substructure in this final state and clearly observe ten different contributions by fitting for their amplitudes and relative phases. We observe a K^{* +} pi^- component which arises from doubly Cabibbo suppressed decays or D^0 - {D^0}-bar mixing.

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H. Muramatsu, CLEO Collaboration. 2003-11-13. Dalitz Analysis of D^0 --> K_S^0 pi+ pi-. https://doi.org/10.1103/physrevlett.89.251802

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