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NSR database version of April 27, 2024.

Search: Author = I.Bentley

Found 9 matches.

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2019NE04      Phys.Rev. C 99, 054315 (2019); Erratum Phys.Rev. C 100, 019902 (2019)

K.Neergaard, I.Bentley

Role of pair-vibrational correlations in forming the odd-even mass difference

ATOMIC MASSES A=25-99, N=13-50; Z=49-51, N=46-92; Z=38-42, N=60-64; calculated odd-even mass differences for odd-A nuclei using random-phase-approximation-amended (RPA-amended) Nilsson-Strutinsky scheme, including pair-vibrational correlation energy.

doi: 10.1103/PhysRevC.99.054315
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2016BE09      Phys.Rev. C 93, 044337 (2016)

I.Bentley, Y.Colon Rodriguez, S.Cunningham, A.Aprahamian

Shell structure from nuclear observables

NUCLEAR STRUCTURE Z=6-100, N=6-152; analyzed shell closures from nuclear observables such as energies of yrast (2+, 4+, 6+, 8+ and 10+) states and B(E2) of first 2+ states, S(2n), S(2p), binding energies, mean-square charge radius in even-even nuclei, Odd-A ground-state Jπ. Predictions on the appearance and disappearance of nuclear shells.

doi: 10.1103/PhysRevC.93.044337
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2015BU15      Phys.Rev. C 92, 064312 (2015)

B.Bucher, H.Mach, A.Aprahamian, G.S.Simpson, J.Rissanen, D.G.Ghita, B.Olaizola, W.Kurcewicz, J.Aysto, I.Bentley, T.Eronen, L.M.Fraile, A.Jokinen, P.Karvonen, I.D.Moore, H.Penttila, M.Reponen, E.Ruchowska, A.Saastamoinen, M.K.Smith, C.Weber

New lifetime measurements in 109Pd and the onset of deformation at N=60

RADIOACTIVITY 109Rh(β-)[from U(p, F), E=30 MeV at IGISOL facility of University of Jyvaskyla]; measured Eγ, Iγ, γγ-, βγγ-coin, level half-lives by fast timing βγγ(t) technique. 109Pd; deduced levels, J, π, configuration, B(M1), B(E2), B(E1); discussed strong pn interaction between πg9/2 and νg7/2 valence nucleons. Systematics of band structures, (d, p) and (d, t) spectroscopic strengths in 101,103,105,107,109,111Pd. Systematics of 7/2+ and 5/2+ states in odd-A Pd, Rh and Ag isotopes.

doi: 10.1103/PhysRevC.92.064312
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2014BE06      Phys.Rev. C 89, 034302 (2014)

I.Bentley, K.Neergaard, S.Frauendorf

Nuclear masses near N=Z from Nilsson-Strutinsky calculations with pairing corrections beyond BCS from an isospin-conserving pairing force

NUCLEAR STRUCTURE A=24-100; calculated binding energy difference for T=0 even-even and odd-odd nuclei near N=Z, energy difference of first T=1 and T=0 states in odd-odd N=Z nuclei, reciprocal isorotational moment of inertia, Wigner energy. Charge-independent potential well interacting by an isovector pairing force beyond BCS formalism. Hartree-Bogolyubov (HB) with random phase approximation (RPA) for a 24-dimensional valence space within in the general framework of Nilsson-Strutinsky calculation. Comparison with experimental data.

doi: 10.1103/PhysRevC.89.034302
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2013BE26      Phys.Rev. C 88, 014322 (2013)

I.Bentley, S.Frauendorf

Relation between Wigner energy and proton-neutron pairing

NUCLEAR STRUCTURE A=20-100; calculated nuclear symmetry (Wigner) energy of nuclei with N AP Z, energy difference of T=1 and T=0 states in N=Z nuclei, isovector and isoscalar pairing correlations, . Isospin symmetry. Isovector pairing model based on single-particle levels from a deformed potential. Comparison with experimental data.

doi: 10.1103/PhysRevC.88.014322
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2012BR17      Eur.Phys.J. A 48, 184 (2012)

S.Brett, I.Bentley, N.Paul, R.Surman, A.Aprahamian

Sensitivity of the r-process to nuclear masses

COMPILATION Sn; compiled masses, Q from AME-2003, Duflo-Zucker, HFB-21 and FRDM calculations. A≈70-210 suggested, evaluated new mass formula. A≈125-240; compiled, calculated r-process abundances for different scenarii, neutron Q-values.

doi: 10.1140/epja/i2012-12184-4
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2011BE03      Phys.Rev. C 83, 014317 (2011)

I.Bentley, S.Brant, F.Donau, S.Frauendorf, B.Kampfer, R.Schwengner, S.Q.Zhang

Instantaneous shape sampling: A model for the γ -absorption cross section of transitional nuclei

NUCLEAR REACTIONS 78,80,82,84,86Kr, 124,126,128,130,132,134,136Xe, 130,132,134,136,138Ba, 144,146,148,150,152,154Sm(γ, X), E=7-20 MeV; calculated absorption σ for dipole strength using the quasiparticle instantaneous shape sampling random-phase approximation (ISS-QRPA) for rapid dipole excitations and interacting boson model (IBM) for the slow collective quadrupole motion. Pygmy resonances. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.014317
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2011BE23      Phys.Rev. C 83, 064322 (2011)

I.Bentley, S.Frauendorf

Microscopic calculation of interacting boson model parameters by potential-energy surface mapping

NUCLEAR STRUCTURE 76,78,80,82,84Kr, 98,100,102,104,106,108Mo, 102,104,106,108,110,112,114,116Pd, 108,110,112,114,116Cd, 152,154,156,158,160Gd, 156,158,160,162,164Dy, 156,158,160,162,164,166,168Er; calculated B(E2), equilibrium deformation parameters, potential energy surfaces, low-lying spectra, ground-state probability distribution. Interacting boson model. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.064322
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2009ZH22      Phys.Rev. C 80, 021307 (2009)

S.Q.Zhang, I.Bentley, S.Brant, F.Donau, S.Frauendorf, B.Kampfer, R.Schwengner, A.Wagner

Instantaneous-shape sampling for calculation of the electromagnetic dipole strength in transitional nuclei

NUCLEAR REACTIONS 88Sr, 90Zr, 92,94,96,98,100Mo(γ, n), (γ, γ'), E not given; calculated σ for dipole strength using the quasiparticle random phase approximation (QRPA) for transitional nuclei according to IBA calculations. Comparison with experimental data.

doi: 10.1103/PhysRevC.80.021307
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