Physics – Nuclear Physics – Nuclear Theory
Scientific paper
2004-06-21
Phys.Rev.Lett. 93 (2004) 142502
Physics
Nuclear Physics
Nuclear Theory
4 pages, 1 figure (modified), additional table, extended discussion of example, accepted for publication in Phys. Rev. Lett
Scientific paper
10.1103/PhysRevLett.93.142502
We study low-lying multipole strength in neutron-halo nuclei. The strength depends only on a few low-energy constants: the neutron separation energy, the asymptotic normalization coefficient of the bound state wave function, and the scattering length that contains the information on the interaction in the continuum. The shape of the transition probability shows a characteristic dependence on few scaling parameters and the angular momenta. The total E1 strength is related to the root-mean-square radius of the neutron wave function in the ground state and shows corresponding scaling properties. We apply our approach to the E1 strength distribution of 11Be.
Baur Gerhard
Typel Stefan
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