N N and N N systems at threshold . II . The effect of D waves
نویسندگان
چکیده
Using the two-body interactions obtained from a chiral constituent quark model, we study all NN and NN states with I = 0, 1, 2 and J = 1/2, 3/2 at threshold, taking into account all three-body configurations with S and D wave components. We constrain further the limits for the N spin-triplet scattering length a1/2,1. Using the hypertriton binding energy, we find a narrow interval for the possible values of the N spin-singlet scattering length a1/2,0. We find that the NN system has a quasibound state in the (I, J ) = (1, 1/2) channel very near threshold with a width of about 2.1 MeV.
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