The N Lambda Lambda-Xi NN bound state problem

作者：Garcilazo H; Valcarce A^*; Carames T F

来源：Journal of Physics G: Nuclear and Particle Physics , 2014, 41(9): 095103.

DOI：10.1088/0954-3899/41/9/095103

• Faddeev equations
• non relativistic quark model
• few body systems

We use a diagrammatic method to derive the Faddeev equations of the coupled N Lambda Lambda-Xi NN system and apply them to the bound-state problem of the (I, J(P)) = (1/2, 1/2(+)) 2 1 2 channel. We use as input the nucleon-nucleon, nucleon-hyperon and hyperon-hyperon interactions obtained from a chiral constituent quark model. We explore different parametrizations of the quark-quark interacting potential. While the N Lambda Lambda system alone is unbound, the full coupled channel problem N Lambda Lambda-Xi NN may present a three-baryon bound state just below threshold. Different from double-. hypernuclei with four nucleons or more, where the Pauli principle acts strongly because there is no room for more that four nucleons in S wave, in.. H-3(Lambda Lambda) the full N Xi interaction can act in S wave.

• 出版日期2014-9