2009/06/12 by M. Bhuyan, S. K. Patra, P. Arumugam +1
Physics and Astronomy · #Astronomical and nuclear sciences #Atomic physics #Axial symmetry #Cluster (spacecraft) #Excited state #Fission #Isotope #Neutron #Neutron number #Neutron temperature #Nuclear physics #Nuclear physics research studies #Nuclear structure #Physics #Proton #Quantum Chromodynamics and Particle Interactions #Quantum mechanics #nucl-th
paper · pdf · doi:10.1142/s021830131101837x
published as Int. J. Mod. Phys. 20 (2011) 1227 · 6 pages 5 Figure 2 Table
arxiv created 2009/06/12 · openalex publication_date 2011/03/30 · arxiv updated 2015/05/13 · openalex created_date 2020/11/23 · openalex updated_date 2026/08/05
Working within the framework of relativistic mean field theory, we study for the first time the clustering structure (nuclear sub-structure) of 112–122 Ba nuclei in an axially deformed cylindrical coordinate. We calculate the individual neutrons and protons density distributions for Ba -isotopes. From the analysis of the clustering configurations in total (neutrons-plus-protons) density distributions for various shapes of both the ground and excited states, we find different sub-structures inside the Ba nuclei considered here. The important step, carried out here for the first time, is the counting of number of protons and neutrons present in the clustering region(s). 12 C is shown to constitute the cluster configuration in prolate-deformed ground-states of 112–116 Ba and oblate-deformed first excited states of 118–122 Ba nuclei. Presence of other lighter clusters such as 2 H , 3 H and nuclei in the neighborhood of N = Z, 14 N , 34–36 Cl , 36 Ar and 42 Ca are also indicated in the ground and excited states of these nuclei. Cases with no cluster configuration are shown for 112–116 Ba in their first and second excited states. All these results are of interest for the observed intermediate-mass-fragments and fusion–fission processes, and the so far unobserved evaporation residues from the decaying Ba * compound nuclei formed in heavy ion reactions.