Comparison of preequilibrium nuclear reaction calculations in multistep direct reaction models

• Grant number: 17/13693-5
• Support Opportunities: Scholarships abroad - Research Internship - Doctorate
• Start date: October 01, 2017
• End date: September 30, 2018
• Field of knowledge: Physical Sciences and Mathematics - Physics - Nuclear Physics
• Principal Investigator: Brett Vern Carlson
• Grantee: Emanuel Vicente Chimanski
• Supervisor: Roberto Capote Noy
• Host Institution: Divisão de Ciências Fundamentais (IEF). Instituto Tecnológico de Aeronáutica (ITA). Ministério da Defesa (Brasil). São José dos Campos , SP, Brazil
• Institution abroad: International Atomic Energy Agency (IAEA), Austria
• Associated to the scholarship: 16/07398-8 - Extension of the quantum formalism for direct multistep reactions, BP.DR

Abstract

Our general objectives concentrate on an analysis of the first two steps of a pre-equilibrium reaction and on the extension of the quantumformalism to include up to two particles in the continuum after the first interaction and up to three after the second interaction, the maximum number of continuum particles physically permitted. The studies to be performed at the Nuclear Data Section (NDS) of the IAEA will concentrate on lower energy reactions in which one-nucleonemission dominates both the one and two-step reactions. This is the energy region that is described by most existing models and the energyregion in which details of the nuclear structure are most important. Calculations including more detailed models (RPA) of nuclear excitationare planned for the stay at the NDS in order to perform comparisons with standard models at both low and high excitation energies. It is also in the region of low excitation energy that direct and semi-direct photon emission are most important. One of the goals of the project is to include these in the calculations during the visit to the NDS.

Scientific publications

(6)

(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)

CHIMANSKI, V, E.; CARLSON, V, B.; CAPOTE, R.; KONING, A. J.. Quasiparticle nature of excited states in random-phase approximation. Physical Review C, v. 99, n. 1, JAN 8 2019. (16/07398-8, 17/13693-5, 17/05660-0)

CHIMANSKI, E. V.; SOUZA, L. A.; CARLSON, B. V.. The Sao Paulo Potential and the 3He Breakup Reaction at 130 MeV on 93Nb and 197Au. Brazilian Journal of Physics, v. 51, n. 2, SI, p. 323-327, APR 2021. (17/13693-5, 19/07767-1, 16/07398-8, 17/05660-0)

SOUZA, L. A.; CHIMANSKI, V, E.; CARLSON, V, B.. Inclusive breakup cross sections in reactions induced by the nuclides He-6 and Li-6,Li- 7 in the two-body cluster model. Physical Review C, v. 104, n. 3, SEP 24 2021. (16/07398-8, 19/07767-1, 17/13693-5)

CHIMANSKI, V, E.; CARLSON, V, B.. Nucleon-induced inelastic scattering with statistical strength functions and the ECIS direct reaction code. EUROPEAN PHYSICAL JOURNAL A, v. 57, n. 6, JUN 2021. (17/13693-5, 16/07398-8, 17/05660-0)

CHIMANSKI, E., V; CARLSON, B., V; CAPOTE, R.; KONING, A. J.; GUIMARAES, V; GENEZINI, F; LUBIAN, J; ASSUNCAO, M; DELGADO, A; TREVISAN, LA. The role of nucleon knockout in pre-equilibrium reactions. WAKE CONFERENCE 2021, v. 1291, p. 8-pg., 2019-01-01. (16/07398-8, 17/05660-0, 17/13693-5)

CHIMANSKI, E., V; CARLSON, B., V; CAPOTE, R.; KONING, A. J.. Quasiparticle nature of excited states in random-phase approximation. PHYSICAL REVIEW C, v. 99, n. 1, p. 10-pg., 2019-01-08. (16/07398-8, 17/05660-0, 17/13693-5)