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arXiv · hep-ph/0306097

A New State of Baryonium

Alakabha Datta·Patrick J. O'Donnell
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Abstract

The recent discovery of a narrow resonance in the decay $J/ψ\to γp \bar{p}$ is described as a zero baryon number, ``deuteron-like singlet ${}^1S_0 $'' state. The difference in binding energy of the deuteron (-2.225 MeV) and of the new state (-17.5 MeV) can be accounted for in a simple potential model with a $λ\cdot λ$ confining interaction.

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Alakabha Datta, Patrick J. O'Donnell. 2003-06-11. A New State of Baryonium. https://doi.org/10.1016/j.physletb.2003.06.050

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