Investigation of the role of neutron transfer in the fusion of 32,34S with 197Au,208Pb using quasi-elastic scattering

  • Excitation functions for quasi-elastic scattering have been measured at backward angles for the systems 32,34S+197Au and 32,34S+208Pb for energies spanning the Coulomb barrier. Representative distributions, sensitive to the low energy part of the fusion barrier distribution, have been extracted from the data. For the fusion reactions of 32,34S with 197Au couplings related to the nuclear structure of 197Au appear to be dominant in shaping the low energy part of the barrier distibution. For the system 32S+208Pb the barrier distribution is broader and extends further to lower energies, than in the case of 34S+208Pb. This is consistent with the interpretation that the neutron pick-up channels are energetically more favoured in the 32S induced reaction and therefore couple more strongly to the relative motion. It may also be due to the increased collectivity of 32S, when compared with 34S.

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Author:Tanja J. SchuckORCiDGND, Heiko Timmers, Mahananda Dasgupta
Parent Title (English):Nuclear physics. A, Nuclear and hadronic physics
Publisher:North-Holland Publ. Co.
Place of publication:Amsterdam
Document Type:Article
Date of Publication (online):2005/08/10
Year of first Publication:2002
Publishing Institution:Universitätsbibliothek Johann Christian Senckenberg
Release Date:2005/08/10
Tag:208Pb(32,34S,X); E=115–175 MeV; Nuclear reactions, 197Au; coupling to neutron transfer channels; deduced, representations of fusion barrier distributions; fusion dynamics; measured, quasi-elastic scattering excitation functions
Page Number:9
First Page:14
Last Page:22
© 2002 Elsevier Science B.V. All rights reserved.
Source:Nucl.Phys. A712 (2002) 14-22 ,
Institutes:Geowissenschaften / Geographie / Geowissenschaften
Physik / Physik
Dewey Decimal Classification:5 Naturwissenschaften und Mathematik / 53 Physik / 530 Physik
Licence (German):License LogoDeutsches Urheberrecht