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
De Luca, S.Investigation
;Norella, S.Investigation
;Quattrocchi, L.Investigation
;Trifiro, A.Investigation
;Trimarchi, M.Investigation
;
2018-01-01
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.Pubblicazioni consigliate
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