Anticharmed meson plus strange baryon systems are predicted to form bound molecules at S=-1 and S=-2, but not at S=-3 or S=-4.
$\sigma$ Exchange in the NN Interaction within the Chiral Unitary Approach
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abstract
We study the nucleon-nucleon interaction in the isoscalar-scalar channel using t he chiral unitary approach. The $t$-matrix of the pion-pion scattering in this c hannel is summed up to all orders using the B-S equation. We find that the calcu lated results at long distances are close to those of the $\sigma$-exchange inte raction. In addition, there appears a shorter range repulsion in this channel.
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Exotic multistrange-anticharm baryon systems
Anticharmed meson plus strange baryon systems are predicted to form bound molecules at S=-1 and S=-2, but not at S=-3 or S=-4.