Strong phases and D0-anti-D0 mixing parameters

Details Strong phases and D0-anti-D0 mixing parameters Strong phases and D0-anti-D0 mixing parameters

1999-11-15

arxiv.org/abs/hep-ph/9911369v2

JHEP 9912 (1999) 019

Physics

High Energy Physics

High Energy Physics - Phenomenology

9 pages, 1 figure, RevTeX; discussion clarified, qualitative and quantitative conclusions unchanged, version to appear in JHEP

Scientific paper

10.1088/1126-6708/1999/12/019

We argue that there could be large, SU(3) violating resonance contributions to D -> K pi decays which would affect the extraction of the D0-anti-D0 mixing parameters from experiment. Such contributions can induce a large strong phase in the interference between the doubly Cabibbo suppressed and the mixing induced Cabibbo favored contributions to the D0 -> K^+ pi^- and anti-D0 -> K^- pi^+ decays. Consequently, the interpretation of a large, CP conserving interference term can involve a large mass difference Delta M rather than a large width difference Delta Gamma.

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