Giant Dipole Resonance in A ~ 144 mass region
1 Inter University Accelerator Centre, Aruna Asaf Ali Road, New Delhi, India
2 Department of Nuclear and Atomic Physics, Tata Institute of Fundamental Research, Homi Bhabha Road, Mumbai, India
3 Department of Physics, Panjab University, Chandigarh, India
4 Department of Physics, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, India
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Published online: 19 December 2013
Exclusive measurement of giant dipole resonance (GDR) γ rays has been performed in 144Sm nucleus which was populated at near barrier energy using the heavy ion reaction of 28Si beam on 116Cd target. GDR γ rays were detected in coincidence with low energy γ rays using 32 elements 4π sum-spin spectrometer. The 144Sm nucleus was populated at an excitation energy of 68 MeV in the temperature range of 1.1-1.3 MeV. The measured GDR widths in this temperature range are consistent with the Kusnezov’s parametrization.
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