A one-boson-exchange potential for ΛN, ΛΛ and ΞN systems and hypernuclei

A Λnnthree-body resonance

“…Our results suggest that there is no bound state which does not agree with the experimental report [2]. However, the remaining possibility of the exsistance of the bound state may be supported by the other YN potentials [12][13][14] or a three-body force. In the sense of the meson theoretical picture Fig.…”

Hyperon–nucleon interactions—a chiral effective field theory approach

“…We did this because the ΛN scattering lengths are not well determined by the scattering data. As a matter of facts, not even the relative magnitude of the ΛN triplet and singlet interaction can be constrained from the Y N data, but their strengths play an important role for the hypertriton binding energy [26]. Contrary to the NN case, see, e.g.…”

Jülich hyperon-nucleon model revisited

“…Thus, as a further constraint, we required the 1 S 0 scattering length to be larger than the one for 3 S 1 -as it seems to be necessary if one wants to achieve a bound hypertriton [38]. A first application of the new YN model in three-body calculations confirmed that it yields indeed a bound hypertriton state [39].…”