Theoretical prediction for the ground state of (10 )H e with the method of analytic continuation in the coupling...

Using the method of analytic continuation in the coupling constant with a (8)He +n+n model, we investigated the ground state of (10)He. In addition to a solution with the two valence neutrons in p states ( [ p(1/2 )p(1/2 )](0+ )), we obtained a solution with the valence neutrons in s states ( [s( 1/2) s(1/2)](0+) ) as the ground state. Experimentally, such a state has not yet been observed. This newly predicted state of (10)He with the main component of [s( 1/2)s (1/2) ](0+) corresponds to the ground state of (11)Li with a halo structure.