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Influence of neutron transfer channels on fusion enhancement in sub-barrier region

Authors :
Khushboo
Mandal S.
Madhavan N.
Muralithar S.
Das J. J.
Nath S.
Jhingan A.
Gehlot J.
Behera B.
Verma S.
Singh H.
Kalkal S.
Singh R.
Source :
EPJ Web of Conferences, Vol 163, p 00029 (2017)
Publication Year :
2017
Publisher :
EDP Sciences, 2017.

Abstract

Fusion cross-section measurements were performed for system 40Ca + 70Zn around the Coulomb barrier energies using Heavy Ion Reaction Analyzer (HIRA). The observed enhancement in experimental fusion cross-sections was investigated via coupled-channels formalism. The coupling of inelastic excitations alone could not reproduce the experimental data, however, the effect of octupole state of the projectile was observed to be significant. The multi-neutron positive Q-value transfer channels were also included in the calculations using semi-classical model. It was observed that two neutrons pick-up channel gave a major contribution to the fusion enhancement and successfully reproduce the experimental data at above as well as below barrier energies. The coupling of more than two neutrons transfer could not give any significant enhancement to subbarrier fusion.

Subjects

Subjects :
Physics
QC1-999

Details

Language :
English
ISSN :
2100014X
Volume :
163
Database :
Directory of Open Access Journals
Journal :
EPJ Web of Conferences
Publication Type :
Academic Journal
Accession number :
edsdoj.3fb2af0dd4994c69a67bac16e69ac012
Document Type :
article
Full Text :
https://doi.org/10.1051/epjconf/201716300029