Application of the finite element method in the coupledchannels calculations for heavy-ion fusion reactions
Seminars
Seminar “Low-energy nuclear physics”
Date and Time: Tuesday, 12 March 2019, at 11:00 AM
Venue: Blokhintsev Conference Hall, Bogoliubov Laboratory of Theoretical Physics
Seminar Topic: «Application of the finite element method in the coupledchannels calculations for heavy-ion fusion reactions»
Authors: P.W. Wen1,2, O. Chuluunbaatar1,3, A.A. Gusev1, R.G. Nazmitdinov1, A.K. Nasirov1, S.I. Vinitsky1, C.J. Lin2, H.M. Jia2
1 – Joint Institute for Nuclear Research
2 – China Institute of Atomic Energy, Beijing, China
3 – National University of Mongolia, Ulan-Bator, Mongolia
Speaker: P.W. Wen
Abstract:
The problem of quantum-mechanical description of a fusion of two nuclei that occurs under the conditions of a strong coupling of their relative motion to surface vibrations is analyzed. A new efficient method (KANTBP), developed in JINR, is used to solve numerically coupled Schrodinger equations (the coupled-channels approach) with boundary conditions corresponding to a total absorption of the flux that has overcome a multidimensional Coulomb barrier. A comparison of the presented results with available experimental data demonstrates the advantage of the KANTBP with respect to widely used numerical method known in literature as the CCFULL [K. Hagino et al., Comput.Phys.Commun. 123 (1999) 143].