Study of the 6Li+p system in inverse kinematics with the MAGNEX spectrometer (Doctoral thesis)

Σούκερας, Βασίλειος


This work refers to the study of the 6Li+p system in inverse kinematics with the MAGNEX spectrometer. Into this context, elastic scattering measurements have been performed for the 6Li+p system at the energies of 16, 20, 25 and 29 MeV while exclusive breakup measurements have been performed for the same system at the two highest energies. In both cases, the heavy ejectile was detected by the large acceptance MAGNEX spectrometer at the Laboratori Nazionali del Sud (INFN-LNS) in Catania, Italy. The goal of the present work for 6Li+p is based on a global study of all involved channels in order to probe coupling channels effects on elastic scattering in a Continuum Discretized Coupled Channel (CDCC) approach. Into this context, both elastic scattering and breakup channels were measured and combined with the results of the reaction 6Li+p→3He+4He measured in the same experiment, were found to be described very well in the CDCC framework. Coupling to the full continuum found to be strong and adequate in order to describe the experimental data in the most effective way. The direct and sequential (via the first 3+ resonance) breakup cross sections were found to be equally large at the higher incident energies, but the dominant effect on elastic scattering was due to coupling to the sequential breakup. This was also true for the lowest energy at 16 MeV, despite the negligible cross section for excitation of the resonance at this energy. The elastic scattering data were also considered in the microscopic approach of the JLM potential without any coupling. This failed to reproduce the data. It should be noted that it was the first time that the JLM potential was tested for a very light stable weakly bound projectile as 6Li and at very low energies.
Institution and School/Department of submitter: Πανεπιστήμιο Ιωαννίνων. Σχολή Θετικών Επιστημών. Τμήμα Φυσικής
Subject classification: Πυρηνική φυσική
Nuclear physics
Keywords: Πυρηνική Φυσική,Πυρηνικές αντιδράσεις,Ασθενικά δέσμιος πυρήνας,Ενεργός διατομή,Ελαστική σκέδαση,Αντίδραση διάσπασης,Αντίστροφη κινηματική,Υπολογισμοί CDCC,Δυναμικό JLM,Προσομοιώσεις Monte Carlo,Nuclear Physics,Nuclear Reactions,Weakly bound nucleus,Cross section,Elastic scattering,Breakup,Inverse kinematics,CDCC Calculations,JLM potential,Monte Carlo simulations
URI: http://olympias.lib.uoi.gr/jspui/handle/123456789/28023
Appears in Collections:Διδακτορικές Διατριβές

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