Decay channels and charmonium mass-shifts

Details Decay channels and charmonium mass-shifts Decay channels and charmonium mass-shifts

2007-04-25

arxiv.org/abs/0704.3384v2

Phys.Rev.D76:077502,2007

Physics

High Energy Physics

High Energy Physics - Phenomenology

4 pages, 2 figures Revised version: (1) corrected 2 typos in Table II, (2) additional text in penultimate paragraph to clarify

Scientific paper

10.1103/PhysRevD.76.077502

The discovery in the last few years of the $X, Y$ and $Z$ states of the
extended charmonium family has highlighted the importance of the closeness of
decay channels to an understanding of these mesons. We aid this debate by
illustrating a simple calculational procedure for including the effect of open
and nearby closed channels.

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