New binding energy for the two-neutron halo of 11Li.
The extended radius of a halo nuclide is very sensitive to the minute binding energy of its valence nucleons. The binding energy of 11Li 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.
Centre de Spectrométrie Nucléaire et de Spectrométrie de Masse (CSNSM), IN2P3-CNRS-Université Paris-Sud 11, 91405 Orsay, France.
C
C
Bachelet
G
G
Audi
C
C
Gaulard
C
C
Guénaut
F
F
Herfurth
D
D
Lunney
M
M
de Saint Simon
C
C
Thibault