Strong phases and D0-anti-D0 mixing parameters
High Energy Physics - Phenomenology
2009-10-31 v2 High Energy Physics - Experiment
Abstract
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.
Keywords
Cite
@article{arxiv.hep-ph/9911369,
title = {Strong phases and D0-anti-D0 mixing parameters},
author = {Adam F. Falk and Yosef Nir and Alexey A. Petrov},
journal= {arXiv preprint arXiv:hep-ph/9911369},
year = {2009}
}
Comments
9 pages, 1 figure, RevTeX; discussion clarified, qualitative and quantitative conclusions unchanged, version to appear in JHEP