On the hidden charm state at 3872 MeV

Details On the hidden charm state at 3872 MeV On the hidden charm state at 3872 MeV

2003-09-25

arxiv.org/abs/hep-ph/0309294v2

Phys.Lett.B579:67-73,2004

Physics

High Energy Physics

High Energy Physics - Phenomenology

10 pages, 1 eps figure, and 1 Table in Revtex. A comment with two references is added on mixing between a charmonium and a mol

Scientific paper

10.1016/j.physletb.2003.11.005

We discuss some puzzling aspects of the narrow hidden charm resonance that was recently discovered by the Belle Collaboration at mass 3872 MeV. In order to determine its quantum numbers, a crucial piece of information is the spin of the dipion in the decay final state pi^+pi^-J/psi. We give the angular distributions and correlations of the final particles in the decay which will give this information about the nature of this resonance.

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