The D^0 -> K^0 \bar{K^0} decay beyond factorization

Details The D^0 -> K^0 \bar{K^0} decay beyond factorization The D^0 -> K^0 \bar{K^0} decay beyond factorization

2001-10-10

arxiv.org/abs/hep-ph/0110133v1

AIP Conf.Proc. 602 (2001) 242-247

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, uses aipproc.sty, talk given by S. Fajfer at QCD@Work, International workshop on QCD: Theory and Experiment, Martina

Scientific paper

10.1063/1.1435932

The decay mode D^0 -> K^0 \bar{K^0} has no factorizable contribution. We calculate the nonfactorizable chiral loop contributions of order O(p^3)and then we use a heavy-light type chiral quark model to calculate nonfactorizable tree level terms, also of order O(p^3), proportional to the gluon condensate. Calculated chiral loops and the gluon condensate contributions are of the same order of magnitude as the experimental amplitude.

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