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NSR database version of April 27, 2024.

Search: Author = E.Olsen

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2021SC16      Eur.Phys.J. A 57, 333 (2021)

G.Scamps, S.Goriely, E.Olsen, M.Bender, W.Ryssens

Skyrme-Hartree-Fock-Bogoliubov mass models on a 3D mesh: effect of triaxial shape

doi: 10.1140/epja/s10050-021-00642-1
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2020CA18      Phys.Rev. C 102, 024311 (2020)

Y.Cao, S.E.Agbemava, A.V.Afanasjev, W.Nazarewicz, E.Olsen

Landscape of pear-shaped even-even nuclei

NUCLEAR STRUCTURE Z=40-100, N=40-200; calculated ground state octupole deformations β₃ and octupole deformation energies of even-even nuclei in the (Z, N) plane using the Skyrme energy density functionals (SEDFs): UNEDF0, UNEDF1, UNEDF2, SLy4, and SV-min. ⁸⁰Zr, ^112,146Ba, ²²⁴Ra, ²⁸⁶Th; calculated Single-particle energy splitting between the unusual-parity intruder shell and the normal-parity shell using (SEDFs): UNEDF0, UNEDF1, UNEDF2, SLy4, SV-min, DD-ME2, NL3^*, DD-PC1 and PC-PK1. ^{212,214,216,218,220,222,224,226,228,230}Rn, ^{214,216,218,220,222,224,226,228,230,232}Ra, ^{216,218,220,222,224,226,228,230,232,234}Th, ^{216,218,220,222,224,226,228,230,232,234}U, ^{138,140,142,144,146,148,150,152}Ba, ^{140,142,144,146,148,150,152,154}Ce, ^{142,144,146,148,150,152,154,156}Nd; calculated deformation parameters β₂, β₃, and octupole deformation energies using the Skyrme energy density functionals models. ^{112,114,144,146,148}Ba, ^144,146,148Ce, ^{146,148,196,198}Nd, ^{150,194,196,198}Sm, ^196,198,200Gd, ^198,200,202Dy, ^200,202Er, ^{218,220,222,224,278,280,282}Rn, ^{218,220,222,224,226,228,280,282,284,286,288}Ra, ^{220,222,224,226,228,282,284,286,288,290}Th, ^{222,224,226,228,230,282,284,286,288,290}U, ^{224,226,228,230,232,284,286,288,290,292}Pu, ^{224,226,228,230,284,286,288,290,292,294}Cm, ^{226,228,230,284,286,288,290,292,294,296}Cf, ^{226,228,230,232,284,286,288,290,292,294,296,298}Fm, ^{230,286,288,290,292,294,296,298}No, ^{288,290,292,294,296,300}Rf, ^290,292,294Sg; calculated β₃ deformation parameter, octupole deformation energies, proton moments Q₂₀ and Q₃₀ for octupole-deformed nuclei obtained in five Skyrme energy density functionals, and four covariant energy density functionals. Comparison between Skyrme and covariant models, and with relevant experimental data. See also supplemental material.

doi: 10.1103/PhysRevC.102.024311
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2020NE02      Phys.Rev. C 101, 014319 (2020)

L.Neufcourt, Y.Cao, S.Giuliani, W.Nazarewicz, E.Olsen, O.B.Tarasov

Beyond the proton drip line: Bayesian analysis of proton-emitting nuclei

RADIOACTIVITY ¹⁹Mg, ⁴⁵Fe, ⁴⁸Ni, ⁵⁴Zn, ⁶⁷Kr(2p); calculated Q(2p) using eleven global mass models: Skyrme models SkM*, SkP, SLy4, SV-min, UNEDF0, UNEDF1, UNEDF2, BCPM and D1M, FRDM-2012 and HFB-24, and Bayesian model averaging (BMA) results: BMA-0, BMA-I, BMA-II, BMA-III, and comparing with experimental data from AME2016 and later literature. Z=17-82; calculated nuclear binding-energy, and probability of proton decay, relative to the neutron number of the lightest proton-bound isotope with known experimental S(p) or S(2p), in the proton-rich region using BMA-I and BMA-II model averaging methods. ^25,26,27S, ^29,30,31Ar, ^33,34,35Ca, ^37,38,39Ti, ^40,41,42,43Cr, ^44,45,46Fe, ^47,48,49,50Ni, ^52,53,54,55Zn, ^56,57,58,59Ge, ^61,62,63,64Se, ^{64,65,66,67,68}Kr, ^{68,69,70,71,72}Sr, ^{72,73,74,75,76}Zr, ^{76,77,78,79,80}Mo, ^{80,81,82,83,84}Ru, ^{83,84,85,86,87,88}Pd, ^{87,88,89,90,91}Cd, ^{91,92,93,94,95}Sn, ^{100,101,102,103}Te, ^{104,105,106,107}Xe, ^{108,109,110,111,112}Ba, ^{111,112,113,114,115,116}Ce, ^{115,116,117,118,119}Nd, ^{119,120,121,122,123,124}Sm, ^{123,124,125,126,127,128,129}Gd, ^{128,129,130,131,132,133,134}Dy, ^{131,132,133,134,135,136,137}Er, ^{135,136,137,138,139,140,141,142}Yb, ^{141,142,143,144,145,146,147}Hf, ^{145,146,147,148,149,150}W, ^{150,151,152,153,154,155}Os, ^{152,153,154,155,156,157,158}Pt, ^{156,157,158,159,160,161,162}Hg(2p); calculated Q(2p) and half-lives using BMA-1 method. ³⁰Ar, ³⁴Ca, ³⁹Ti, ⁴²Cr, ⁵⁸Ge, ⁶²Se, ⁶⁶Kr, ⁷⁰Sr, ⁷⁴Zr, ⁷⁸Mo, ⁸²Ru, ⁸⁶Pd, ⁹⁰Cd, ¹⁰³Te; predicted as most promising 2p emitters. ^131,132Dy, ^134,135Er, ^144,145Hf; predicted as excellent candidates for the sequential emission of two protons. Bayesian Gaussian processes for separation-energy residuals and combined via Bayesian model averaging for mass predictions, with uncertainty quantification of theoretical predictions.

doi: 10.1103/PhysRevC.101.014319
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2020NE04      Phys.Rev. C 101, 044307 (2020)

L.Neufcourt, Y.Cao, S.A.Giuliani, W.Nazarewicz, E.Olsen, O.B.Tarasov

Quantified limits of the nuclear landscape

NUCLEAR STRUCTURE Z=5-119, N=11-293; calculated S(n) for odd-N. Z=8-119, N=20-296; calculated S(2n) for even-N. Z=25-119, N-21-176; calculated S(p) for odd-Z. Z=14-118, N=8-170; calculated S(2p) for even-Z. Quantified predictions of proton and neutron separation energies and Bayesian probabilities of existence of particle-bound isotopes throughout the nuclear landscape using nuclear density-functional theory with several energy density functionals, together with current global mass models and experimental atomic mass data in the general framework of Bayesian model averaging (BMA); deduced existence of 7759 particle-bound nuclei with Z<120, having existence probability of >0.5. Relevance to discovery potential with modern radioactive ion-beam facilities, such as FRIB at MSU.

doi: 10.1103/PhysRevC.101.044307
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2019GI06      Rev.Mod.Phys. 91, 011001 (2019)

S.A.Giuliani, Z.Matheson, W.Nazarewicz, E.Olsen, P.-G.Reinhard, J.Sadhukhan, B.Schuetrumpf, N.Schunck, P.Schwerdtfeger

Colloquium: Superheavy elements: Oganesson and beyond

doi: 10.1103/RevModPhys.91.011001
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2019NE02      Phys.Rev.Lett. 122, 062502 (2019)

L.Neufcourt, Y.Cao, W.Nazarewicz, E.Olsen, F.Viens

Neutron Drip Line in the Ca Region from Bayesian Model Averaging

NUCLEAR STRUCTURE ^{50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,68,69,70,71,72,73,74,75,76,77,78,79,80,81,82}Ca, ⁵²Cl, ⁵³Ar, ⁴⁹S; calculated one- and two-neutron separation energies, posterior probability of existence of neutron-rich nuclei in the Ca region.

doi: 10.1103/PhysRevLett.122.062502
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2019OL01      Phys.Rev. C 99, 014317 (2019)

E.Olsen, W.Nazarewicz

α-decay energies of superheavy nuclei: Systematic trends

RADIOACTIVITY ^{250,256,258,260}Fm, ^{254,260,262,264}No, ^{258,264,266,268}Rf, ^{262,268,270,272}Sg, ^{266,272,274,276}Hs, ^{270,276,278,280}Ds, ^280,282,284Cn, ^284,286,288Fl, ^288,290,292Lv, ^292,294Og, ^296,298120(α); calculated Q(α), shape transitions using nuclear superfluid density functional theory with several Skyrme energy density functionals (EDFs). Comparison with available experimental values, and with other theoretical predictions.

doi: 10.1103/PhysRevC.99.014317
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2016MA22      Phys.Rev.Lett. 116, 121101 (2016)

D.Martin, A.Arcones, W.Nazarewicz, E.Olsen

Impact of Nuclear Mass Uncertainties on the r Process

NUCLEAR STRUCTURE A=80-240; calculated isotopic abundances for neutron star and supernovae, two-neutron separation energies using SkM, SLy4, and UNEDF0 models.

doi: 10.1103/PhysRevLett.116.121101
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2016MI27      Phys.Rev.Lett. 117, 252501 (2016)

K.Minamisono, D.M.Rossi, R.Beerwerth, S.Fritzsche, D.Garand, A.Klose, Y.Liu, B.Maass, P.F.Mantica, A.J.Miller, P.Muller, W.Nazarewicz, W.Nortershauser, E.Olsen, M.R.Pearson, P.-G.Reinhard, E.E.Saperstein, C.Sumithrarachchi, S.V.Tolokonnikov

Charge Radii of Neutron Deficient ^{52, 53}Fe Produced by Projectile Fragmentation

NUCLEAR MOMENTS ^52,53,56Fe; measured hyperfine spectra; deduced differential mean-square charge radii. Bunched-beam collinear laser spectroscopy, comparison with the nuclear density functional theory with Fayans and Skyrme energy density functionals calculations.

doi: 10.1103/PhysRevLett.117.252501
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Data from this article have been entered in the XUNDL database. For more information, click here.

2015HI03      Phys.Rev. C 91, 044323 (2015)

No.Hinohara, M.Kortelainen, W.Nazarewicz, E.Olsen

Complex-energy approach to sum rules within nuclear density functional theory

NUCLEAR STRUCTURE ²⁴Mg; calculated energy weighted Kπ=0+ sum rule for the oblate minimum. ^{142,144,146,148,150,152}Nd, ^{144,146,148,150,152,154}Sm; calculated isoscalar monopole and quadrupole energy-weighted Kπ=0+ sum rules, quadrupole deformation β, neutron and proton pairing gaps, total rms radius. Complex-energy finite-amplitude method (FAM) based on quasiparticle random-phase approximation (QRPA), and Hartree-Fock-Bogoliubov (HFB) techniques.

doi: 10.1103/PhysRevC.91.044323
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2014KO13      Phys.Rev. C 89, 054314 (2014)

M.Kortelainen, J.McDonnell, W.Nazarewicz, E.Olsen, P.-G.Reinhard, J.Sarich, N.Schunck, S.M.Wild, D.Davesne, J.Erler, A.Pastore

Nuclear energy density optimization: Shell structure

NUCLEAR STRUCTURE ⁴⁸Ca, ²⁰⁸Pb; calculated neutron and proton single-particle levels, B(E1) strengths. Z=10-105, N=10-160; calculated binding energies, S(2p), S(2n) for even-even nuclei; deduced deviations from experimental data. ^226,228Ra, ^{228,230,232,234}Th, ^{232,234,236,238,240}U, ^{236,238,240,242,244,246}Pu, ^{242,244,246,248,250}Cm, ^250,252Cf; calculated inner fission barrier residuals, fission isomer excitation energies, outer fission barriers. Skyrme Hartree-Fock-Bogoliubov theory with POUNDERS optimization algorithm and a new parametrization UNEDF2 of the energy density functional. Comparison with other energy density functionals (UNEDF) parametrizations, and with experimental data.

doi: 10.1103/PhysRevC.89.054314
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2013KO22      Phys.Rev. C 88, 031305 (2013)

M.Kortelainen, J.Erler, W.Nazarewicz, N.Birge, Y.Gao, E.Olsen

Neutron-skin uncertainties of Skyrme energy density functionals

NUCLEAR STRUCTURE Z<120, A<400; analyzed systematic and statistical uncertainties in theoretical neutron-skin thickness predicted by various Skyrme EDF models. Statistical covariance technique.

doi: 10.1103/PhysRevC.88.031305
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2013OL02      Phys.Rev.Lett. 110, 222501 (2013)

E.Olsen, M.Pfutzner, N.Birge, M.Brown, W.Nazarewicz, A.Perhac

Landscape of Two-Proton Radioactivity

RADIOACTIVITY ¹⁹Mg, ⁴⁵Fe, ⁴⁸Ni, ⁵⁴Zn, ^57,58,59Ge, ^62,63Se, ^66,67Kr, ⁷¹Sr, ^102,103Te, ⁷³Zr, ⁷⁷Mo, ⁸¹Ru, ⁸⁵Pd, ¹¹³Ce, ¹¹⁷Nd, ¹²¹Sm, ^125,126Gd, ¹³⁰Dy, ^133,134,135Er, ^138,139Yb, ^151,152Os, ^154,155,156Pt, ^158,159Hg, ^109,110Ba, ¹¹⁴Ce, ¹²⁷Gd, ¹³¹Dy, ^144,145Hf, ^147,148,149W(2p); analyzed available data; deduced list of candidates and competition between 2p- and α-decay modes. Nuclear density functional theory (DFT) with several Skyrme energy density functionals (EDFs).

doi: 10.1103/PhysRevLett.110.222501
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2012ER06      Nature(London) 486, 509 (2012)

J.Erler, N.Birge, M.Kortelainen, W.Nazarewicz, E.Olsen, A.M.Perhac, M.Stoitsov

The limits of the nuclear landscape

NUCLEAR STRUCTURE Z=1-120; calculated neutron and proton drip lines, two-neutron separation energies. ^{140,148,156,164}Er; deduced two-neutron dripline patterns. UNEDF, ab initio and other methods, comparison with available data.

doi: 10.1038/nature11188
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2001HE39      Appl.Radiat.Isot. 54, 839 (2001)

G.Henriksen, S.Messelt, E.Olsen, R.H.Larsen

Optimisation of cyclotron production parameters for the ²⁰⁹Bi(α, 2n) ²¹¹At reaction related to biomedical use of ²¹¹At

NUCLEAR REACTIONS ²⁰⁹Bi(α, 2n), (α, 3n), E=27.6-30.1 MeV; measured yields. comparison with previous results.

doi: 10.1016/S0969-8043(00)00346-8
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0167.