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arXiv · 1202.4167

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

Chengrong Deng·Jialun Ping·Youchang Yang·Fan Wang
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Abstract

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 $J/ψ$ by BES collaboration, can be described as $N_8\bar{N}_8$ and $Δ_8\barΔ_8$ 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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Chengrong Deng, Jialun Ping, Youchang Yang, Fan Wang. 2012-07-25. X(1835), X(2120) and X(2370) in a flux tube model. https://doi.org/10.1103/physrevd.86.014008

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