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The experimental large fluctuation in odd-even differences in moments of inertia of deformed actinide nucleiis investigated using the particle-number conserving(PNC)method for treating the cranked shell model with monopoleand quadrupole pairing interactions.PNC calculations show that the large odd-even difference in moments of inertiamainly comes from the interference contributions j(μv)from particles in high j intruder orbitals μ and v quite nearthe Fermi surface,which have no counterpart in the BCS formalism.The effective monopole and quadrupole pairinginteraction strengths are determined to fit the experimental odd-even differences in binding energies and bandheadmoments of inertia.The experimental results for the variation of moments of inertia with rotational frequency ω arereproduced well by the PNC calculation.The nearly identical experimental moments of inertia between ~(236)U(gsb)and~(238)U(gsb)at low frequencies hω0.20 MeV are also reproduced quite well.
The experimental large fluctuation in odd-even differences in moments of inertia of deformed actinide nucleiis investigated using the particle-number conserving (PNC) method for treating the cranked shell model with monopole and quadrupole pairing interactions. PNC calculations show that the large odd-even difference in moments of inertiamainly from the interference contributions j (μν) from particles in high j intruder orbitals μ and v quite nearthe Fermi surface, which have no counterpart in the BCS formalism. The effective monopole and quadrupole pairinginteraction strengths are determined to fit the experimental odd-even differences in binding energies and bandheadmoments of inertia. The experimental results for the variation of moments of inertia with rotational frequency ω arereproduced well by the PNC calculation. The nearly identical experimental moments of inertia between ~ (236) U (gsb) and ~ (238) U (gsb) at low frequencies hω 0.20 MeV are also reproducing quite well.