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Resonant Two-body D Decays

High Energy Physics - Phenomenology 2009-10-31 v2 High Energy Physics - Experiment

Abstract

The contribution of a K(1430)K^*(1430) 0+0^+ resonance to D0Kπ+D^0\to K^-\pi^+ is calculated by applying the soft pion theorem to D+Kπ+D^+ \to K^* \pi^+, and is found to be about 30% of the measured amplitude and to be larger than the ΔI=3/2\Delta I=3/2 component of this amplitude. We estimate a 70% contribution to the total amplitude from a higher K(1950)K^*(1950) resonance. This implies large deviations from factorization in D decay amplitudes, a lifetime difference between D^0 and D^+, and an enhancement of D0Dˉ0D^0-\bar D^0 mixing due to SU(3) breaking.

Keywords

Cite

@article{arxiv.hep-ph/9908237,
  title  = {Resonant Two-body D Decays},
  author = {Michael Gronau},
  journal= {arXiv preprint arXiv:hep-ph/9908237},
  year   = {2009}
}

Comments

To be published in Physical Review Letters, some corrections, references updated