X(1835): A Possible Baryonium?

Details X(1835): A Possible Baryonium? X(1835): A Possible Baryonium?

2005-07-05

arxiv.org/abs/hep-ph/0507050v1

Commun.Theor.Phys.46:291,2006

Physics

High Energy Physics

High Energy Physics - Phenomenology

Comments and suggestions welcome

Scientific paper

10.1088/0253-6102/46/2/021

We point out that (1) the large $p\bar p$ coupling and suppressed mesonic coupling of X(1835) and (2) the suppression of the three-body strange final states strongly indicate that X(1835) may be a $p\bar p$ baryonium. We also point out that the branching ratio of $X(1835)\to\eta \pi\pi$ should be bigger than that of $X(1835)\to\eta^\prime \pi\pi$. If BES further confirms the non-observation of X(1835) in the $\eta\pi\pi$ channel, that will be very puzzling. Finally, X(1835) may be used a tetraquark generator if X(1835) is really established as a baryonium state.

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