New binding energy for the two-neutron halo of (11)Li

作者：Bachelet C; Audi G; Gaulard C; Guenaut C; Herfurth F; Lunney D^*; Simon M de Saint; Thibault C

来源：Physical Review Letters, 2008, 100(18): 182501.

DOI：10.1103/PhysRevLett.100.182501

The extended radius of a halo nuclide is very sensitive to the minute binding energy of its valence nucleons. The binding energy of (11)Li has been measured with high precision by using the radio-frequency spectrometer MISTRAL at CERN's ISOLDE facility. The new two-neutron separation energy of 378 +/- 5 keV is 25% higher than the previously accepted value with an uncertainty 5 times smaller.

• 出版日期2008-5-9