X(1835), X(2120) and X(2370) in a flux tube model

Details X(1835), X(2120) and X(2370) in a flux tube model X(1835), X(2120) and X(2370) in a flux tube model

2012-02-19

arxiv.org/abs/1202.4167v1

Physics

High Energy Physics

High Energy Physics - Phenomenology

6 pages, 1 figure. arXiv admin note: text overlap with arXiv:1201.1768

Scientific paper

Nonstrange baryonium spectrum is systematically studied by using the Gaussian expansion method in a flux tube model with the six-body confinement potential. All the model parameters are fixed by baryon properties, so the baryonium calculation is parameter-free. We find that X(1835) and X(2370), which are observed in the radiative decay of $J/\psi$ by BES collaboration, can be described as $N_8\bar{N}_8$ and $\Delta_8\bar{\Delta}_8$ bound states with quantum numbers $I^GJ^{PC}=0^+0^{-+}$, respectively, such bound states should be color confinement resonances with three-dimensional configurations similar to dumbbell, however, X(2120) can not be accommodated in our model.

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