DSpace
 

DSpace at IIT Bombay >
IITB Publications >
Article >

Please use this identifier to cite or link to this item: http://dspace.library.iitb.ac.in/jspui/handle/10054/9200

Title: The alpha-nucleus potential for fusion and decay
Authors: BHAGWAT, A
GAMBHIR, YK
Keywords: mean-field-theory
folding model
half-lives
superheavy nuclei
finite nuclei
heavy
scattering
energies
elements
density
Issue Date: 2008
Publisher: IOP PUBLISHING LTD
Citation: JOURNAL OF PHYSICS G-NUCLEAR AND PARTICLE PHYSICS, 35(6), -
Abstract: The alpha-nucleus fusion cross sections at energies around and below the barrier and the alpha-decay half lives are calculated in the semi-classical WKB approach using the same microscopic as well as empirical alpha-nucleus potentials. The microscopic potential is generated within the double-folding framework using M3Y nucleon-nucleon interaction along with the required neutron and proton density distributions calculated in the relativistic mean field theory. It is found that in spite of the excellent results for the half lives the fusion cross sections are underestimated by almost a factor of 3. However, the experimental fusion cross sections can be reproduced by introducing a norm factor (overall multiplicative factor to the potential) 1.3 but this then worsens the agreement for half lives. To verify this observation and for comparison the calculations are repeated using some of the representative empirical potentials available in the literature. The same conclusion emerged. The present study thus indicates that the same alpha-nucleus potential may yield accurate description for both the alpha-nucleus fusion cross sections and alpha-decay half lives only with the introduction of additional parameter(s).
URI: http://dx.doi.org/10.1088/0954-3899/35/6/065109
http://dspace.library.iitb.ac.in/xmlui/handle/10054/9200
http://hdl.handle.net/10054/9200
ISSN: 0954-3899
Appears in Collections:Article

Files in This Item:

There are no files associated with this item.

View Statistics

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.

 

Valid XHTML 1.0! DSpace Software Copyright © 2002-2010  Duraspace - Feedback