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NSR database version of April 26, 2024.

Search: Author = C.N.Gilbreth

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2018GI02      Phys.Rev. C 97, 014315 (2018)

C.N.Gilbreth, Y.Alhassid, G.F.Bertsch

Nuclear deformation in the laboratory frame

NUCLEAR STRUCTURE ¹⁶²Dy, ^{144,146,148,150,152}Nd, ^{148,150,152,154}Sm; calculated probability distribution of the axial quadrupole operator P(q) as function of temperature, quadrupole invariants <Q.Q>, quadrupole moments, effective deformation parameters β and γ within the rotationally invariant framework of the configuration-interaction shell model, and using finite-temperature auxiliary-field quantum Monte Carlo (AFMC) method.

doi: 10.1103/PhysRevC.97.014315
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2018MU14      Phys.Rev. C 98, 034317 (2018)

M.T.Mustonen, C.N.Gilbreth, Y.Alhassid, G.F.Bertsch

Statistical theory of deformation distributions in nuclear spectra

NUCLEAR STRUCTURE ^{148,150,152,154}Sm; calculated second, third, and fourth moments of Q₂₀ moment as a function of temperature, intrinsic quadrupole shape contours in the (β, γ) plane, probabilities of spherical, prolate, and oblate shapes as a function of temperature, first derivatives of Landau-like expansion parameters, nuclear state densities, and shape probabilities as a function of excitation energy using auxiliary-field Monte Carlo (AFMC) approach with configuration-interaction (CI) shell model.

doi: 10.1103/PhysRevC.98.034317
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2016AL09      Phys.Rev. C 93, 044320 (2016)

Y.Alhassid, G.F.Bertsch, C.N.Gilbreth, H.Nakada

Benchmarking mean-field approximations to level densities

NUCLEAR STRUCTURE ¹⁴⁸Sm, ¹⁶²Dy; calculated canonical excitation energies, mean square angular momentum and second moments of angular momentum, entropies, as function of inverse temperature, s-wave resonance spacings, state densities, particle-projected frozen-potential (FP) density versus excitation energy. Shell model Monte Carlo (SMMC) and Hartree-Fock (HF) calculations. Assessment of accuracy of finite-temperature mean-field theory. Data files presented in supplemental material depository. Benchmarking of level densities in mean-field approximations for heavy spherical (e.g. ¹⁴⁸Sm) and heavy deformed (e.g. ¹⁶²Dy) nuclei. Comparison with available experimental data.

doi: 10.1103/PhysRevC.93.044320
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2014AL34      Phys.Rev.Lett. 113, 262503 (2014)

Y.Alhassid, C.N.Gilbreth, G.F.Bertsch

Nuclear Deformation at Finite Temperature

NUCLEAR STRUCTURE ²⁰Ne, ^148,154Sm; calculated the axial quadrupole operator using the AFMC method, deformation parameters.

doi: 10.1103/PhysRevLett.113.262503
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