Strangeness −2 two-baryon systems |
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| Authors: | A Valcarce H Garcilazo TF Caramés |
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| Institution: | 1. Departamento de Física Fundamental, Universidad de Salamanca, E-37008 Salamanca, Spain;2. Escuela Superior de Física y Matemáticas, Instituto Politécnico Nacional, Edificio 9, 07738 México D.F., Mexico |
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| 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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| Keywords: | Hyperon&ndash hyperon interaction Constituent quark models |
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