Covariant density functional theory calculations on tungsten isotopes show dynamic shape evolution with spherical shapes at neutron numbers 82 and 126, prolate dominance in between, shape coexistence in several cases, a potential subshell closure at N=118, and the neutron drip line at N=184.
The Lagrangian reads: L = ¯ψ(iγµ∂µ − m)ψ − 1 2 αS(ˆρ)( ¯ψψ)2 − 1 2 αV (ˆρ)( ¯ψγ µψ)2 − 1 2 αT V (ˆρ)( ¯ψ⃗ τ γµψ)2 − 1 2 δS(∂ν ¯ψψ)(∂ν ¯ψψ) − e ¯ψγ µAµ (1 − τ3) 2 ψ
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Shape transitions and ground-state properties of tungsten isotopes in covariant density functional theory
Covariant density functional theory calculations on tungsten isotopes show dynamic shape evolution with spherical shapes at neutron numbers 82 and 126, prolate dominance in between, shape coexistence in several cases, a potential subshell closure at N=118, and the neutron drip line at N=184.