Nonexistence of a $\Lambda nn$ bound state
Nonexistence of a $\Lambda nn$ bound state
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不存在 $Lambda nn$ 束缚态
DOI:
10.1103/physrevc.89.057001
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发表时间:
2014
影响因子:
3.1
通讯作者:
A. Valcarce
中科院分区:
文献类型:
--
作者:
H. Garcilazo;A. Valcarce
It has been recently suggested the existence of a neutral bound state of two neutrons and a $\Lambda$ hyperon, $^3_\Lambda n$. We point out that using either simple separable potentials or a full-fledged calculation with realistic baryon-baryon interactions derived from the constituent quark cluster model there is no possibility for the existence of such a $\Lambda nn$ bound state. For this purpose, we performed a full Faddeev calculation of the $\Lambda nn$ system in the $(I,J^P)=(1,1/2^+)$ channel using the interactions derived from the constituent quark cluster model which describe well the two-body $NN$ and $NY$ data and the $\Lambda np$ hypertriton.