Studies in hot & rotating nuclei through GDR decay and fusion-fission process
Seminars
Low-Energy Nuclear Physics Seminar
Date and Time: Tuesday, 1 October 2019, at 11:00 AM
Venue: Blokhintsev Hall (4th floor), Bogoliubov Laboratory of Theoretical Physics
Seminar topic: «Studies in hot & rotating nuclei through GDR decay and fusion-fission process»
Speaker: Indranil Mazumdar (Department of Nuclear & Atomic Physics, TIFR, Mumbai, India)
Abstract:
The variety of phenomena exhibited by the collective excitations of the atomic nucleus transcend the boundaries of nuclear physics and enrich our understanding of the dynamical behaviour of a quantum many-body system in general. In this talk we will discuss two important dynamical features of a hot and rotating nucleus, namely 1) Giant Dipole Resonance (GDR) decay and 2) fission of a heavy nucleus. We will summarize selected important results from our exclusive measurements of exotic shape-phase transitions in hot and rotating nuclei. The second part of the talk will be devoted to the important result of our studies over the years, to understand fission hindrance in hot and rotating nuclei through GDR γ-rays as well as more recent measurements of evaporation residue cross-sections and evaporation residue gated spin distributions of heavy nuclei. Our continued efforts to build relevant experimental facilities for such fusion-fission studies, namely, a large array of high energy γ ray detectors, gas-filled magnetic separators and 4π γ-ray sum-spin spectrometers will also be touched upon.