Review of nuclear structure N=86–118 of W isotopes

Feb 17, 2025
Published in:
  • Nucl.Phys.A 1057 (2025) 123032
  • Published: Feb 17, 2025

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Abstract: (Elsevier B.V.)
Nuclear structure of N = 86–118 W isotopes in even Z even N contains ground state band Kπ=0+, Kπ=0+ β-band and Kπ=2+ γ-band. The energy E(21+) for spin Iπ=2+ of ground state band shows minima at neutron number N = 108, which indicates shape phase transition. The energy ratio R4/2 is maximum at N = 108 having nearly rotational symmetry and showed shape phase transition. The Power index ‘b’ in E=aIb, shows minimum to maximum from N = 88 to N = 108 and again decreasing up to N = 116. The electromagnetic transition strength B(E2)↑ varies linearly with [1/ E(21+)]. The γ-band head difference with E(41+) is maximum at N = 108 and decreases for higher N, coming closer to the ground band. The band structure of W isotopes N = 108 to N = 112 is studied with the interacting boson model (IBM) and compared with experimental energies. Here the shape phase transitions, both sides of neutron number N = 108 182W is analyzed.
  • Nuclear structure
  • Collective model
  • Electro-magnetic transition
  • Shape –phase transition
  • 21.60.Ev
  • 21.10.Re
  • 21.60.Fw
  • 27.60.+j