We present preliminary results of barrier height distribution measurements for 24Mg+90;92Zr systems. The experiment was performed at LNS INFN in Catania with the CHIMERA detector system and a 24Mg beam accelerated by Tandem MP. The measurements were done at the near-barrier beam energies of 68-88.5 MeV. A discrepancy between experimental results and the predictions of Coupled Channels (CC) calculations was observed. We suggest that this discrepancy may be due to a cumulative effect of many individual weak channels such as non-collective excitations of the target, which cannot be fully implemented in practical CC calculations of a standard form.

Influence of single particle excitations on barrier distributions: 24Mg+90;92Zr

Dell'aquila, D.
Membro del Collaboration Group
;
Gnoffo, B.
Membro del Collaboration Group
;
Lanzalone, G.
Membro del Collaboration Group
;
Martorana, N. S.
Membro del Collaboration Group
;
Pagano, E. V.
Membro del Collaboration Group
;
Papa, M.
Membro del Collaboration Group
;
Pirrone, S.
Membro del Collaboration Group
;
Politi, G.;Quattrocchi, L.;Rizzo, F.;Russotto, P.;Trimarchi, M.;
2018

Abstract

We present preliminary results of barrier height distribution measurements for 24Mg+90;92Zr systems. The experiment was performed at LNS INFN in Catania with the CHIMERA detector system and a 24Mg beam accelerated by Tandem MP. The measurements were done at the near-barrier beam energies of 68-88.5 MeV. A discrepancy between experimental results and the predictions of Coupled Channels (CC) calculations was observed. We suggest that this discrepancy may be due to a cumulative effect of many individual weak channels such as non-collective excitations of the target, which cannot be fully implemented in practical CC calculations of a standard form.
Physics and Astronomy (all)
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/20.500.11769/358043
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