TY - JOUR
T1 - Halo structure of 14Be
AU - Labiche, M
AU - Clarke, Norman
AU - Freer, Martin
AU - Fulton, Brian
AU - Singer, Steven
PY - 2001/1/1
Y1 - 2001/1/1
N2 - The two-neutron halo nucleus Be-14 has been investigated in a kinematically complete measurement of the fragments (Be-12 and neutrons) produced in dissociation at 35 MeV/nucleon on C and Pb targets. Two-neutron removal cross sections, neutron angular distributions, and invariant mass spectra were measured, and the contributions from electromagnetic dissociation (EMD) were deduced. Comparison with three-body model calculations suggests that the halo wave function contains a large nu (2s(1/2))(2) admixture. The EMD invariant mass spectrum exhibited enhanced strength near threshold consistent with a nonresonant soft-dipole excitation.
AB - The two-neutron halo nucleus Be-14 has been investigated in a kinematically complete measurement of the fragments (Be-12 and neutrons) produced in dissociation at 35 MeV/nucleon on C and Pb targets. Two-neutron removal cross sections, neutron angular distributions, and invariant mass spectra were measured, and the contributions from electromagnetic dissociation (EMD) were deduced. Comparison with three-body model calculations suggests that the halo wave function contains a large nu (2s(1/2))(2) admixture. The EMD invariant mass spectrum exhibited enhanced strength near threshold consistent with a nonresonant soft-dipole excitation.
UR - http://www.scopus.com/inward/record.url?scp=0035133475&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.86.600
DO - 10.1103/PhysRevLett.86.600
M3 - Article
C2 - 11177891
SN - 1079-7114
VL - 86
SP - 600
EP - 603
JO - Physical Review Letters
JF - Physical Review Letters
IS - 4
ER -