期刊
NUCLEAR PHYSICS A
卷 955, 期 -, 页码 116-132出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nuclphysa.2016.06.004
关键词
Continuum random phase approximation; Isoscalar giant monopole resonance; Transition density; Particle-hole dispersive optical model
资金
- Russian Foundation for Basic Research [15-02-08007-a]
- U.S. Department of Energy [DE-FG02-93ER40773]
- Competitiveness Program of National Research Nuclear University MEPhI
- Ministry of Education and Science of the Russian Federation for the Competitiveness Program of the NRNU MEPhI [02.a03.21.0005]
- Cyclotron Institute, Texas AM University
The particle hole dispersive optical model, developed recently, is applied to study properties of high-energy isoscalar monopole excitations in medium-heavy mass spherical nuclei. The energy-averaged strength functions of the isoscalar giant monopole resonance and its overtone in Pb-208 are analyzed. In particular, we analyze the energy-averaged isoscalar monopole double transition density, the key quantity in the description of the hadron-nucleus inelastic scattering, and studied the validity of the factorization approximation using semi classical and microscopic one body transition densities, respectively, in calculating the cross sections for the excitation of isoscalar giant resonances by inelastic alpha scattering. (C) 2016 Elsevier B.V. All rights reserved.
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