Study of the shell effect on nuclear dissipation via neutron multiplicity measurement

¹ Department of Physics, Panjab University, Chandigarh 160014, India
² Variable Energy Cyclotron Centre, 1/AF, Bidhan Nagar, Kolkata 700064, India

^* e-mail: Mangat_phy@yahoo.co.in
^a Present address: Centre for Physical and Mathematical Sciences, Central University of Punjab, Bathinda 151001, India.
^b Present address: Department of Physics and Astronomy, University of Tennessee, Knoxville, Tennessee 37996, USA and Physics Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA.

Published online: 20 March 2014

Abstract

Experimental neutron multiplicity data has been fitted using the Kramers’ fission width, in statistical model calculations with and without inclusion of shell corrections in nuclear level density, nuclear masses and fission barrier. It has been found that the magnitude of dissipation strength changes to a large extent with inclusion of shell corrections in different ingredients of the statistical model. These observations clearly demonstrate the importance of shell corrections in statistical model calculations.