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X(1835): A Possible Baryonium?

Shi-Lin Zhu·Chong-Shou Gao
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Abstract

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 $X(1835)\toηππ$ should be bigger than that of $X(1835)\toη^\prime ππ$. If BES further confirms the non-observation of X(1835) in the $ηππ$ 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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Shi-Lin Zhu, Chong-Shou Gao. 2005-07-05. X(1835): A Possible Baryonium?. https://doi.org/10.1088/0253-6102%2F46%2F2%2F021

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