Please use this identifier to cite or link to this item:
Title: Giant dipole resonance studies in Ba isotopes at E/A?5 MeV
Authors: Ghosh, C.
Kumar, A.K.R.
Dey, B.
Nanal, V.
Pillay, R.G.
Arumugam, P.
Anoop, K.V.
Dokania, N.
Garai, A.
Gupta, G.
Mirgule, E.T.
Mishra, G.
Mondal, D.
Pal, S.
Pose, M.S.
Rout, P.C.
Issue Date: 2017
Citation: Physical Review C, 2017, Vol.96, 1, pp.-
Abstract: Exclusive measurements of high-energy ? rays have been performed in Ba124 and Ba136 at the same excitation energy (?49MeV) to study the properties of the giant dipole resonance (GDR) over a wide N/Z range. The high-energy ? rays are measured in coincidence with the multiplicity of low-energy ? rays to disentangle the effect of temperature (T) and angular momentum (J). The GDR parameters are extracted employing a simulated Monte Carlo statistical model analysis. The observed ?-ray spectra of Ba124 can be explained with prolate deformation, whereas a single-component Lorentzian function which corresponds to a spherical shape could explain the ?-ray spectra of Ba136. The observed GDR width in Ba136 is narrower compared to that of Ba124. The statistical model best-fit GDR cross sections are found to be in reasonable agreement with the thermal shape fluctuation model (TSFM) calculations. Further, it is shown that the variation of GDR width with T is well reproduced by the TSFM calculations over the temperature range of 1.1-1.7 MeV. 2017 American Physical Society.
Appears in Collections:1. Journal Articles

Files in This Item:
There are no files associated with this item.

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