Study of Soft Quadrupole Excitation in Nucleus Li-11 with Test Particle Method

Year: 1994

Authors: Cai Y.H., Smerzi A., Di Toro M.

Autors Affiliation: Chinese Center of Advanced Science and Technology (World Laboratory), P. O. Box 8730, Beijing 100080; Institute of Nuclear Research, Academia Sinica, Shanghai 201800; INFN-Laboratorio Nazionale del Sud and Dipartimento di Fisica, Catania, Italy 57, Corso Italia, 95129 Catania, Italy.

Abstract: The quadrupole excitations in nucleus Li-11 have been studied within the nuclear Vlasov equation approach. The classical phase space distribution function is given by the test particle propagation method. A soft mode of quadrupole excitation located around 2MeV is found. The total percentage of E2 energy-weighted sum rule exhausted in this soft resonance region is very sensitive to the extension of neutron halo in nucleus Li-11. The results compared with other recent calculations are analyzed.

Journal/Review: CHINESE PHYSICS LETTERS

Volume: 11 (6)      Pages from: 333  to: 336

KeyWords: Giant-dipole Resonance
DOI: 10.1088/0256-307X/11/6/004