COULOMB-EXCITATION OF SOFT DIPOLE STATES IN HE-6 AND LI-11 AND ITS EFFECTS ON THE ELASTIC-SCATTERING

被引:9
作者
FUNADA, S
机构
[1] Department of Physics, Osaka City University
来源
PROGRESS OF THEORETICAL PHYSICS | 1995年 / 93卷 / 02期
关键词
D O I
10.1143/PTP.93.373
中图分类号
O4 [物理学];
学科分类号
0702 ;
摘要
The Coulomb excitation of the soft-dipole mode (SDM) and its dynamical effect on the elastic scattering of halo nuclei, He-6 and Li-11 at E(lab)/A(P)=5 similar to 70 MeV, are investigated in the microscopic coupled-channel (CC) method. The Goldhaber-Teller (GT) model is employed to calculate the transition density for SDM. The proton and neutron density distributions as well as the dipole-transition strengths, which are the input to the GT model, are given by the coupled-rearrangement-channel variational method based on an a + n + n three-body model for He-6, and by a Li-9 + dineutron two-cluster-model calculation for Li-11. The results of the CC calculations show that the effect of the Coulomb excitation of SDM on the elastic scattering is suite significant, while the nuclear contribution is relatively small. We also investigate the characteristics of the Coulomb-dissociation cross sections, such as the energy dependence and the target dependence in the same model.
引用
收藏
页码:373 / 391
页数:19
相关论文
共 56 条
  • [1] EVALUATION OF AN EIKONAL MODEL FOR LI-11-NUCLEUS ELASTIC-SCATTERING
    ALKHALILI, JS
    THOMPSON, IJ
    TOSTEVIN, JA
    [J]. NUCLEAR PHYSICS A, 1995, 581 (02) : 331 - 355
  • [2] DYNAMIC POLARIZATION POTENTIAL FOR LI-11 SCATTERING
    ALKHALILI, JS
    TOSTEVIN, JA
    [J]. PHYSICAL REVIEW C, 1994, 49 (01): : 386 - 390
  • [3] DYNAMIC POLARIZATION POTENTIAL INDUCED BY DIPOLE COULOMB-EXCITATION
    ANDRES, MV
    GOMEZ-CAMACHO, J
    NAGARAJAN, MA
    [J]. NUCLEAR PHYSICS A, 1994, 579 (1-2) : 273 - 284
  • [4] OBSERVATION OF FORWARD NEUTRONS FROM THE BREAK-UP OF THE LI-11 NEUTRON HALO
    ANNE, R
    ARNELL, SE
    BIMBOT, R
    EMLING, H
    GUILLEMAUDMUELLER, D
    HANSEN, PG
    JOHANNSEN, L
    JONSON, B
    LEWITOWICZ, M
    MATTSSON, S
    MUELLER, AC
    NEUGART, R
    NYMAN, G
    POUGHEON, F
    RICHTER, A
    RIISAGER, K
    SAINTLAURENT, MG
    SCHRIEDER, G
    SORLIN, O
    WILHELMSEN, K
    [J]. PHYSICS LETTERS B, 1990, 250 (1-2) : 19 - 23
  • [5] [Anonymous], COMMUNICATION
  • [6] BINDING MECHANISM OF A NEUTRON-RICH NUCLEUS HE-6 AND ITS EXCITED-STATES
    AOYAMA, S
    MUKAI, S
    KATO, K
    IKEDA, K
    [J]. PROGRESS OF THEORETICAL PHYSICS, 1995, 93 (01): : 99 - 114
  • [7] 3 BODY CALCULATIONS FOR LI-11
    BANG, JM
    THOMPSON, IJ
    [J]. PHYSICS LETTERS B, 1992, 279 (3-4) : 201 - 206
  • [8] INTERACTIONS FOR INELASTIC-SCATTERING DERIVED FROM REALISTIC POTENTIALS
    BERTSCH, G
    BORYSOWICZ, J
    MCMANUS, H
    LOVE, WG
    [J]. NUCLEAR PHYSICS A, 1977, 284 (03) : 399 - 419
  • [9] Blank B., 1992, Zeitschrift fur Physik A (Hadrons and Nuclei), V343, P375, DOI 10.1007/BF01289813
  • [10] 3-BODY RESONANCES IN HE-6, LI-6, AND BE-6, AND THE SOFT DIPOLE MODE PROBLEM OF NEUTRON HALO NUCLEI
    CSOTO, A
    [J]. PHYSICAL REVIEW C, 1994, 49 (06): : 3035 - 3041