EPJ Web of Conferences
Volume 63, 2013Heavy Ion Accelerator Symposium 2013
|Number of page(s)
|19 December 2013
Fission fragment mass and angular distribution in 6,7Li+235,238U reactions
1 Nuclear Physics Division, Bhabha Atomic Research Centre, Mumbai - 400085, India
2 Department of Physics, The M. S. University of Baroda, Vadodara - 390002, India
3 Department of Physics, Panjab University, Chandigarh - 160014, India
4 Radio Chemistry Division, Bhabha Atomic Research Centre, Mumbai - 400085, India
5 Inter University Accelerator Centre, Aruna Asaf Ali Marg, New Delhi - 110067, India
6 Department of Physics, Central University of Kerala, Kasaragod, Kerala - 671123, India
a e-mail: email@example.com
Published online: 19 December 2013
Fission fragment (FF) angular distributions for 6,7Li+235,238U reactions and mass distributions for 6,7Li+238U reactions have been measured at energies near and above the Coulomb barrier. The angle integrated fission cross sections for 6Li induced reactions at sub-barrier energies are found to be higher than 7Li induced reactions possibly due to larger contribution of breakup induced fission in case of the former compared to the latter. The FF anisotropy for 6,7Li+235U was found to be smaller than 6,7Li+238U, manifesting the effect of target ground state spin. The statistical saddle point (SSP) model predictions were found to be consistent with the measured FF anisotropy for 6,7Li+235U, however they were under-estimated for 6,7Li+238U particularly at lower energies. Observation of larger FWHM of FF folding angle distribution and sharp increase in peak to valley ratio for FF mass distribution with the decrease in bombarding energy in 6,7Li+238U reactions confirms the presence of breakup induced fission.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
Current usage metrics show cumulative count of Article Views (full-text article views including HTML views, PDF and ePub downloads, according to the available data) and Abstracts Views on Vision4Press platform.
Data correspond to usage on the plateform after 2015. The current usage metrics is available 48-96 hours after online publication and is updated daily on week days.
Initial download of the metrics may take a while.