Abstract
We derive strangeness −2 baryon–baryon interactions from a chiral constituent quark model including the full set of scalar mesons. The model has been tuned in the strangeness 0 and −1 two-baryon systems, providing parameter free predictions for the strangeness −2 case. We calculate elastic and inelastic NΞ and ΛΛ cross sections which are consistent with the existing experimental data. We also calculate the two-body scattering lengths for the different spin–isospin channels.
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