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

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arxiv 1202.4167 v2 pith:JYGQQVZG submitted 2012-02-19 hep-ph nucl-th

classification hep-phnucl-th
keywords modelbaryoniumboundconfinementdeltafluxstatestube
verification ladder T0 review T1 audit T2 compute T3 formal
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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 $J/\psi$ 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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  1. Investigate the glueball-like particle $X(2370)$ in $B$ meson decays

    hep-ph 2025-01 conditional novelty 4.0 of 10

    Predictions for B to X(2370) branching fractions, around 10^-6 semileptonic and 10^-8 nonleptonic, suggest the glueball candidate is within Belle-II's reach.

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