Year: 2014
Type: article
Abstract: It has been recently suggested that there exists a neutral bound state of two neutrons and a $\ensuremath{\Lambda}$ hyperon, ${}_{\ensuremath{\Lambda}}^{3}n$. We point out that by using either simple separable potentials or a full-fledged calculation with realistic baryon-baryon interactions derived from the constituent quark cluster model it can be seen that there is no possibility for the existence of such a $\ensuremath{\Lambda}nn$ bound state. For this purpose, we performed a full Faddeev calculation of the $\ensuremath{\Lambda}nn$ system in the $(I,{J}^{P})=(1,1/{2}^{+})$ channel using the interactions derived from the constituent quark cluster model which describes well the two-body $NN$ and $NY$ data and the $\ensuremath{\Lambda}np$ hypertriton.
Source: Physical Review C
Authors: H. Garcilazo, A. Valcarce
Institution: Instituto Politécnico Nacional
Language: Latvian
Subfield: Nuclear and High Energy Physics
Field: Physics and Astronomy
Domain: Physical Sciences
Open Access status: green
OpenAlex ID: W1896281133