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Search: Author = J.L.Egido

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2023CO04      Phys.Rev. C 107, L021301 (2023)

D.M.Cox, A.Saamark-Roth, D.Rudolph, L.G.Sarmiento, R.M.Clark, J.L.Egido, P.Golubev, J.Heery, A.Yakushev, S.AAberg, H.M.Albers, M.Albertsson, M.Block, H.Brand, T.Calverley, R.Cantemir, B.G.Carlsson, Ch.E.Dullmann, J.Eberth, C.Fahlander, U.Forsberg, J.M.Gates, F.Giacoppo, M.Gotz, S.Gotz, R.-D.Herzberg, Y.Hrabar, E.Jager, D.Judson, J.Khuyagbaatar, B.Kindler, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, L.Lens, J.Ljungberg, B.Lommel, J.Louko, C.-C.Meyer, A.Mistry, C.Mokry, P.Papadakis, E.Parr, J.L.Pore, I.Ragnarsson, J.Runke, M.Schadel, H.Schaffner, B.Schausten, D.A.Shaughnessy, P.Thorle-Pospiech, N.Trautmann, J.Uusitalo

Spectroscopy along flerovium decay chains. II. Fine structure in odd-A 289Fl

RADIOACTIVITY 289Fl(α) [from 244Pu(48Ca, X), E=6.02 MeV/nucleon]; 285Cn(α) [from 289Fl(α)]; 281Ds(α) [from 285Cn(α)]; 277Hs(SF) [from 281Ds(α)]; measured decay products, Eα, Iα, Eβ, Iβ αβ-coin, αα-coin, (fragment)αα-coin; deduced Q-values, T1/2, branching ratios, hindrance factor. 289Fl, 285Cn, 281Ds; deduced J, π and δ assignments based on the derived decay path. Comparison with structure calculations based on the symmetry-conserving configuration mixing theory. Gas-filled recoil separator TASCA was used to transmit, select, and focus the flerovium ions into an upgraded version of the TASISpec decay station consisting of implantation DSSD, veto DSSD and set of HPGe detectors (GSI).

doi: 10.1103/PhysRevC.107.L021301
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2023HE06      Phys.Lett. B 841, 137933 (2023)

S.Hellgartner, D.Mucher, K.Wimmer, V.Bildstein, J.L.Egido, R.Gernhauser, R.Krucken, A.K.Nowak, M.Zielinska, C.Bauer, M.L.L.Benito, S.Bottoni, H.DeWitte, J.Elseviers, D.Fedorov, F.Flavigny, A.Illana, M.Klintefjord, T.Kroll, R.Lutter, B.Marsh, R.Orlandi, J.Pakarinen, R.Raabe, E.Rapisarda, S.Reichert, P.Reiter, M.Scheck, M.Seidlitz, B.Siebeck, E.Siesling, T.Steinbach, T.Stora, M.Vermeulen, D.Voulot, N.Warr, F.J.C.Wenander

Axial and triaxial degrees of freedom in 72Zn

NUCLEAR REACTIONS 109Ag(72Zn, 72Zn'), E=2.85 MeV/nucleon, [secondary 72Zn beam from U(p, F), E=1.4 GeV primary beam using UCx target, resonant ionization laser ion Source, and High Resolution mass Separator at the REX-ISOLDE-CERN facility]; measured particle spectra using C-REX array of two annular double-sided silicon strip detectors (DSSSD), Doppler-corrected Eγ, Iγ, (particle)γ-coin, σ(θ, E(level)) using Miniball array of eight six-fold segmented HPGe triple cluster detectors for γ radiation. 72Zn; deduced levels, Jπ, E2 matrix elements, B(E2), spectroscopic quadrupole moments for the first two 2+ states, first excited 0+ and first 4+ states using GOSIA-GOSIA2 analysis in multiple safe Coulomb excitation; calculated potential energy surface (PES) in (β, γ) planes for the g.s., first excited 0+ and 2+ states, and the 2+ state of the γ band in the PNAMP approach. Comparison to shell-model calculations using jj44c and JUN45 effective interactions, and to mean-field generator coordinate method (GCM) calculations. Systematics and theoretical predictions of B(E2) values for 62,64,66,68,70,72,74,76,78,80Zn for the first 2+ and 4+ states.

doi: 10.1016/j.physletb.2023.137933
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2023SA03      Phys.Rev. C 107, 024301 (2023)

A.Saamark-Roth, D.M.Cox, D.Rudolph, L.G.Sarmiento, M.Albertsson, B.G.Carlsson, J.L.Egido, P.Golubev, J.Heery, A.Yakushev, S.AAberg, H.M.Albers, M.Block, H.Brand, T.Calverley, R.Cantemir, R.M.Clark, Ch.E.Dullmann, J.Eberth, C.Fahlander, U.Forsberg, J.M.Gates, F.Giacoppo, M.Gotz, S.Gotz, R.-D.Herzberg, Y.Hrabar, E.Jager, D.Judson, J.Khuyagbaatar, B.Kindler, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, L.Lens, J.Ljungberg, B.Lommel, J.Louko, C.-C.Meyer, A.Mistry, C.Mokry, P.Papadakis, E.Parr, J.L.Pore, I.Ragnarsson, J.Runke, M.Schadel, H.Schaffner, B.Schausten, D.A.Shaughnessy, P.Thorle-Pospiech, N.Trautmann, J.Uusitalo

Spectroscopy along flerovium decay chains. III. Details on experiment, analysis, 282Cn, and spontaneous fission branches

RADIOACTIVITY 290,288,286,284Fl(α)(SF) [from 244Pu(48Ca, X), E=6.02 MeV/nucleon]; 282Cn(α)(SF) [286Fl(α)]; 284Cn(α)(SF) [from 288Fl(α)]; 286Cn(α)(SF) [290Fl(α)]; 282Ds(α)(SF) [from 286Cn(α)]; 280Ds(α)(SF) [from 284Cn(α)]; measured decay products, Eα, Iα, Eβ, Iβ αβ-coin, αα-coin, (fragment)αα-coin; deduced Q-values, T1/2, branching ratios, hindrance factor. 282Cn; deduced levels, J, π, T1/2 of excited states, transition rates, monopole transition strengths. Comparison to macroscopic-microscopic finite-range liquid-drop model, self-consistent Hartree-Fock-Bogoliubov calculations and other experimental data. Gas-filled recoil separator TASCA was used to transmit, select, and focus the flerovium ions into an upgraded version of the TASISpec decay station consisting of implantation DSSD, veto DSSD and set of HPGe detectors (GSI).

doi: 10.1103/PhysRevC.107.024301
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2021EG03      Phys.Rev.Lett. 126, 192501 (2021)

J.L.Egido, A.Jungclaus

Low-Energy Nuclear Excitations along the α-Decay Chains of Superheavy 292Lv and 294Og

RADIOACTIVITY 294Og, 290Lv, 286Fl, 292Lv, 288Fl, 284Cn(α); analyzed available data; calculated potential energy surfaces, excitation energy versus angular-momentum plots for the band structures. First triaxial beyond-mean-field study of the excitation spectra of even-even super heavy nuclei.

doi: 10.1103/PhysRevLett.126.192501
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2021SA01      Phys.Rev.Lett. 126, 032503 (2021)

A.Samark-Roth, D.M.Cox, D.Rudolph, L.G.Sarmiento, B.G.Carlsson, J.L.Egido, P.Golubev, J.Heery, A.Yakushev, S.Aberg, H.M.Albers, M.Albertsson, M.Block, H.Brand, T.Calverley, R.Cantemir, R.M.Clark, C.E.Dullmann, J.Eberth, C.Fahlander, U.Forsberg, J.M.Gates, F.Giacoppo, M.Gotz, S.Gotz, R.-D.Herzberg, Y.Hrabar, E.Jager, D.Judson, J.Khuyagbaatar, B.Kindler, I.Kojouharov, J.V.Kratz, J.Krier, N.Kurz, L.Lens, J.Ljungberg, B.Lommel, J.Louko, C.-C.Meyer, A.Mistry, C.Mokry, P.Papadakis, E.Parr, J.L.Pore, I.Ragnarsson, J.Runke, M.Schadel, H.Schaffner, B.Schausten, D.A.Shaughnessy, P.Thorle-Pospiech, N.Trautmann, J.Uusitalo

Spectroscopy along Flerovium Decay Chains: Discovery of 280Ds and an Excited State in 282Cn

RADIOACTIVITY 286,288Fl, 284Cn(α), 282Cn, 280Ds(SF) [from 242,244Pu(48Ca, X)286Fl/288Fl, E=6.021 MeV/nucleon]; measured decay products, Eα, Iα, Eβ, Iβ α-β coin.; deduced Q-values, T1/2, J, π. Comparison with theoretical calculations. The gas-filled separator TASCA at the GSI.

doi: 10.1103/PhysRevLett.126.032503
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2020EG02      Phys.Rev.Lett. 125, 192504 (2020)

J.L.Egido, A.Jungclaus

Predominance of Triaxial Shapes in Transitional Super-Heavy Nuclei: Ground-State Deformation and Shape Coexistence along the Flerovium (Z = 114) Chain of Isotopes

NUCLEAR STRUCTURE 288,290,292,294,296,298Fl; calculated excitation energies, deformation parameters, energy surfaces. Comparison with available data.

doi: 10.1103/PhysRevLett.125.192504
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2018BO20      Phys.Rev. C 98, 044317 (2018)

M.Borrajo, J.L.Egido

Symmetry conserving configuration mixing description of odd mass nuclei

NUCLEAR STRUCTURE 25Mg; calculated levels, J, π, bands, neutron single particle levels, potential energy surface contours in (β, γ) plane, K distribution of states, B(E2) and B(M1) values of transitions in the two lowest bands, average β and γ deformation parameters, γ-branching ratios, spectroscopic quadrupole moments, squared collective wave function contours of bandheads in (β, γ) plane. Symmetry-conserving configuration mixing with effective finite-range density-dependent Gogny force. Comparison with experimental values.

doi: 10.1103/PhysRevC.98.044317
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2017CH11      Phys.Rev. C 95, 024307 (2017)

F.-Q.Chen, J.L.Egido

Triaxial shape fluctuations and quasiparticle excitations in heavy nuclei

NUCLEAR STRUCTURE 156,158,160,162,164,166,168,170,172Er; calculated Particle number and angular momentum projected potential energy surfaces (PES) in (β, γ) plane for 0+ and second 2+ states, levels in the yrast, second 0+, and γ bands, vacua probability amplitude and total probability amplitude distribution contour plots in (β, γ) plane for the first and second 0+ states and the 2+ states of gamma band, K distribution of the yrast, β, and γ bands, B(E2) for the yrast, second 0+, and γ bands. Generator coordinate method including particle number and angular momentum symmetry conserving fluctuations in (β, γ) plane and their symmetry conserving two-quasiparticle excitations. Comparison with experimental data.

doi: 10.1103/PhysRevC.95.024307
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2016BO26      Eur.Phys.J. A 52, 277 (2016); Erratum Eur.Phys.J. A 53, 38 (2017)

M.Borrajo, J.L.Egido

A symmetry-conserving description of odd nuclei with the Gogny force - Particle number and angular-momentum projection with self-consistent blocking

NUCLEAR STRUCTURE 31,32Mg; calculated potential energy surface, deformation for positive- and negative-parity states, single-particle levels, J, π, B(E2), B(M1), quadrupole moment, magnetic moment using PNAMP (Particle Number and Angular Momentum Projection) method with finite-range density-dependent Gogny force. Compared with available data.

doi: 10.1140/epja/i2016-16277-8
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2016CH24      Phys.Rev. C 93, 064313 (2016)

F.-Q.Chen, J.L.Egido

Shape vibration and quasiparticle excitations in the lowest 0+ excited state in erbium isotopes

NUCLEAR STRUCTURE 156,158,160,162,164,166,168,170,172Er; calculated levels, J, π, energies and B(E2) of yrast bands, and bands built on excited 0+ state, E(first 4+)/E(first 2+) ratios, E0 transition probabilities, two-quasiparticle configurations, absolute squares of the collective wave functions for the ground states and the excited 0+ states. Generator coordinate method (GCM). Comparison with experimental data.

doi: 10.1103/PhysRevC.93.064313
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2016EG01      Phys.Rev.Lett. 116, 052502 (2016)

J.L.Egido, M.Borrajo, T.R.Rodriguez

Collective and Single-Particle Motion in Beyond Mean Field Approaches

NUCLEAR STRUCTURE 44S; calculated energy levels, J, π, bands. Symmetry conserving configuration mixing (SCCM) method, comparison with available data.

doi: 10.1103/PhysRevLett.116.052502
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2016EG03      Phys.Scr. 91, 073003 (2016)

J.L.Egido

State-of-the-art of beyond mean field theories with nuclear density functionals

NUCLEAR STRUCTURE 52Ti; calculated potential energy surface vs quadrupole moment, deformation, levels, J, π, B(E2) using different approaches. 24,32Mg; calculated potential energy surface vs deformation and quadrupole moment, levels 42Si; calculated potential energy surface vs deformation, B(E2). HFB, VAP (Variation After Arojection), PAV (Projection After Variation), AMP (Angular Momentum Projection), PN (Particle Number), AM (Angular Momentum), PNAMP (Particle Number and Angular Momentum Projection).

doi: 10.1088/0031-8949/91/7/073003
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2014IL02      Phys.Rev. C 89, 054316 (2014)

A.Illana, A.Jungclaus, R.Orlandi, A.Perea, C.Bauer, J.A.Briz, J.L.Egido, R.Gernhauser, J.Leske, D.Mucher, J.Pakarinen, N.Pietralla, M.Rajabali, T.R.Rodriguez, D.Seiler, C.Stahl, D.Voulot, F.Wenander, A.Blazhev, H.De Witte, P.Reiter, M.Seidlitz, B.Siebeck, M.J.Vermeulen, N.Warr

Low-velocity transient-field technique with radioactive ion beams: g factor of the first excited 2+ state in 72Zn

NUCLEAR MOMENTS 72Zn; measured Eγ, Iγ, (particle)γ-coin, γγ(θ, H), precession angles, g factor using the transient-field (TF) technique and MINIBALL cluster Ge detectors at REX-ISOLDE-CERN facility. 72Zn beam of 2.94 MeV/nucleon was obtained from bombardment of UCx target with 1.4-GeV protons using RILIS ion source, REXTRAP, and EBIS ion source. Comparison with shell-model and triaxial beyond-mean-field calculations, and with previous experimental results. Systematics of g factors of first 2+ states in even-even N=32-66 Zn, Ge, Se, Kr and Sr isotopes.

doi: 10.1103/PhysRevC.89.054316
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2013LO12      Phys.Rev.Lett. 111, 142501 (2013)

N.Lopez Vaquero, T.R.Rodriguez, J.L.Egido

Shape and Pairing Fluctuation Effects on Neutrinoless Double Beta Decay Nuclear Matrix Elements

RADIOACTIVITY 48Ca, 76Ge, 82Se, 96Zr, 100Mo, 116Cd, 124Sn, 128,130Te, 136Xe, 150Nd(2β-); calculated nuclear matrix elements, binding energies, T1/2. Energy density functional methods, comparison with available data.

doi: 10.1103/PhysRevLett.111.142501
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2013LO15      Phys.Rev. C 88, 064311 (2013)

N.Lopez Vaquero, J.L.Egido, T.R.Rodriguez

Large-amplitude pairing fluctuations in atomic nuclei

NUCLEAR STRUCTURE 24,32Mg, 50,52,54Ca, 52Ti, 54Cr; calculated lowest 0+, 2+, 4+ and 6+ states, potential energy curves, potential energy contours, wavefunctions of lowest 0+ states for 52Ti. 24,26,28,30,32,34Mg, 28,30Si, 32,34S, 50,52,54Ca; calculated energies of 0+ states and E0 strengths for Mg, Si and S isotopes, B(E2) for first 2+ states in Mg and Ca isotopes, rms charge radii and S(2n) for Mg isotopes. 18O; calculated potential energy surfaces. Pairing degree of freedom in beyond-mean-field theories (BMFTs) with finite-range density-dependent Gogny forces. Variation after the projection (VAP), particle-number (PN), angular-momentum projection (AMP), and various other approaches.

doi: 10.1103/PhysRevC.88.064311
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2012BA40      Phys.Rev. C 86, 034310 (2012)

C.Bauer, T.Behrens, V.Bildstein, A.Blazhev, B.Bruyneel, J.Butterworth, E.Clement, L.Coquard, J.L.Egido, A.Ekstrom, C.R.Fitzpatrick, C.Fransen, R.Gernhauser, D.Habs, H.Hess, J.Leske, T.Kroll, R.Krucken, R.Lutter, P.Marley, T.Moller, T.Otsuka, N.Patronis, A.Petts, N.Pietralla, T.R.Rodriguez, N.Shimizu, C.Stahl, I.Stefanescu, T.Stora, P.G.Thirolf, D.Voulot, J.van de Walle, N.Warr, F.Wenander, A.Wiens

Prolate shape of 140Ba from a first combined Doppler-shift and Coulomb-excitation measurement at the REX-ISOLDE facility

NUCLEAR REACTIONS 96Mo(140Ba, 140Ba'), [140Ba secondary beam from U(p, X), E=1.4 GeV primary beam], E=392 MeV; measured Eγ, Iγ, (particle)γ-coin, yields in different angular ranges, differential σ(θ), half-life of first 2+ state by DSAM using REX-ISOLDE and MINIBALL setup at ISOLDE-CERN. 140Ba; deduced level, E2 matrix element, B(E2), and static quadrupole moment of first 2+ state. Z=56, A=130=146; systematics of energies and B(E2) of first 2+ states. Comparison with Monte Carlo shell-model approach and beyond-mean-field calculations. Gogny energy density functionals and distribution of probability contours in the triaxial (β, γ) plane for 0+, 2+ and 4+ states first two bands.

NUCLEAR MOMENTS 140Ba; measured static quadrupole moment of first 2+ state by reorientation analysis of Coulomb-excitation yields.

doi: 10.1103/PhysRevC.86.034310
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2012WA23      Phys.Rev. C 86, 014322 (2012)

M.Warda, J.L.Egido

Fission half-lives of superheavy nuclei in a microscopic approach

NUCLEAR STRUCTURE 270Hs; calculated single-particle energies as function of β2 parameter. 274Hs, 282Cn; calculated potential energy surface (PES) contours as function of quadrupole and octupole moments. 250,252,254,256,258,260,262,264,266Fm, 252,254,256,258,260,262,264,266,268No, 254,256,258,260,262,264,266,268,270Rf, 256,258,260,262,264,266,268,270,272,274,276,278Sg, 258,260,262,264,266,268,270,272,274,276,278,280,282,284,286,288,290,292,294Hs, 264,266,268,270,272,274,276,278,280,282,284,286,288,290,292,294,296Ds, 270,272,274,276,278,280,282,284,286,288,290,292,294,296,298,300,302Cn, 274,276,278,280,282,284, 286,288,290,292,294,296,298,300,302,304Fl, 280, 282,284,286,288,290,292,294,296,298,300,302,304,306Lv, 288,290,292,294,296,298,300,302,304,306, 308118, 292,294,296,298,300,302,304,306,308,310120, 298,300,302,304,306,308,310,312122, 304,306,308,310,312,314124, 312,314,316126; calculated β2, β3, β4, β6, β8 deformation parameters of ground states, neutron and proton pairing energies, Q(α), T1/2(α), S(2p), T1/2(SF), S(2n), S(2p), fission barriers. Hartree-Fock-Bogoliubov (HFB) calculations, finite-range and density-dependent Gogny force with the D1S parameter set. Comparison with experimental data.

doi: 10.1103/PhysRevC.86.014322
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2011JU01      Phys.Lett. B 695, 110 (2011)

A.Jungclaus, J.Walker, J.Leske, K.-H.Speidel, A.E.Stuchbery, M.East, P.Boutachkov, J.Cederkall, P.Doornenbal, J.L.Egido, A.Ekstrom, J.Gerl, R.Gernhauser, N.Goel, M.Gorska, I.Kojouharov, P.Maier-Komor, V.Modamio, F.Naqvi, N.Pietralla, S.Pietri, W.Prokopowicz, H.Schaffner, R.Schwengner, H.-J.Wollersheim

Evidence for reduced collectivity around the neutron mid-shell in the stable even-mass Sn isotopes from new lifetime measurements

NUCLEAR REACTIONS C, Gd, Cu(112Sn, 112Sn'), (114Sn, 114Sn'), (116Sn, 116Sn'), (118Sn, 118Sn'), (120Sn, 120Sn'), (122Sn, 122Sn'), (124Sn, 124Sn'), E=4 MeV/nucleon; measured Eγ, Iγ, particle-γ coin. 112,114,116,118,120,122,124Sn; deduced energy levels, lifetimes, B(E2). Comparison with shell model calculations.

doi: 10.1016/j.physletb.2010.11.012
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2011JU06      J.Phys.:Conf.Ser. 312, 092033 (2011)

A.Jungclaus, J.Walker, J.Leske, K.-H.Speidel, A.E.Stuchbery, M.East, P.Boutachkov, J.Cederkall, P.Doornenbal, J.L.Egido, A.Ekstrom, J.Gerl, R.Gernhauser, N.Goel, M.Gorska, I.Kojouharov, P.Maier-Komor, V.Modamio, F.Naqvi, N.Pietralla, S.Pietri, W.Prokopowicz, H.Schaffner, R.Schwengner, H.-J.Wollersheim

New lifetime measurements in the stable semimagic Sn isotopes using the Doppler-shift attenuation technique

NUCLEAR REACTIONS C, Cu, Gd, Ta(112Sn, 112Sn'), (114Sn, 114Sn'), (116Sn, 116Sn'), E=4.0 MeV/nucleon;C, Cu, Gd, Ta(122Sn, 122Sn'), E=3.8 Mev/nucleon; measured Coulomb excitation Eγ, Iγ, (particle)γ-coin, (particle)(particle)-coin using Doppler-shift attenuation; deduced B(E2). Compared to other data; also deduced T1/2, but the values not given here.

doi: 10.1088/1742-6596/312/9/092033
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2011RO48      Phys.Rev. C 84, 051307 (2011)

T.R.Rodriguez, J.L.Egido

Configuration mixing description of the nucleus 44S

NUCLEAR STRUCTURE 44S; calculated potential energy surfaces (PES) in β-γ plane, levels, J, π, B(E2), spectroscopic quadrupole moments, collective wave function contours in the triaxial plane for ground, first excited and γ bands. symmetry conserving configuration mixing (SCCM) calculations based on Gogny D1S interaction, including beyond-mean-field effects. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.051307
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2011RO59      J.Phys.:Conf.Ser. 312, 092009 (2011)

T.R.Rodriguez, J.L.Egido

Collective motion in complex nuclei

NUCLEAR STRUCTURE 24Mg; calculated levels, J, π, γ transitions, B(E2) using triaxial GCM-PNAMP (particle number and angular momentum projection restoration). 126Xe; calculated deformation energy surfaces, levels, J, π, B(E2) using PN-VAP (particle number variation after projection); compared to data. 24Mg; calculated collective probability distribution vs deformation.

doi: 10.1088/1742-6596/312/9/092009
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2010RO20      Phys.Rev. C 81, 064323 (2010)

T.R.Rodriguez, J.L.Egido

Triaxial angular momentum projection and configuration mixing calculations with the Gogny force

NUCLEAR STRUCTURE 24Mg; calculated potential energy surfaces as function of the β deformation and in β-γ plane, levels, J, π, bands, expectation values of the total angular momentum operator, B(E2), spectroscopic quadrupole moments for axial and triaxial approximations. Generator coordinate method in the β-γ plane with full triaxial angular momentum and particle number projected wave functions using the Gogny force. RVAMPIR approach. Comparison with experimental data.

doi: 10.1103/PhysRevC.81.064323
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2009JU02      Acta Phys.Pol. B40, 427 (2009)

A.Jungclaus, T.R.Rodriguez, J.L.Egido

Isomer Spectroscopy and Shell Structure Around Doubly-Magic 132Sn

NUCLEAR REACTIONS 136Xe(Be, X), 238U(Be, X), E=650, 750 MeV/nucleon;126,128,130Cd; measured Eγ, Iγ; deduced Jπ. Beyond mean field calculations, Gogny force.


2009SC11      Phys.Rev.Lett. 103, 012501 (2009)

W.Schwerdtfeger, P.G.Thirolf, K.Wimmer, D.Habs, H.Mach, T.R.Rodriguez, V.Bildstein, J.L.Egido, L.M.Fraile, R.Gernhauser, R.Hertenberger, K.Heyde, P.Hoff, H.Hubel, U.Koster, T.Kroll, R.Krucken, R.Lutter, T.Morgan, P.Ring

Shape Coexistence Near Neutron Number N = 20: First Identification of the E0 Decay from the Deformed First Excited Jπ = 0+ State in 30Mg

RADIOACTIVITY 30Na(β-); measured Eγ, Iγ; deduced J, π, monopole strength, partial E0 lifetime. Comparison with beyond mean field calculations.

doi: 10.1103/PhysRevLett.103.012501
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2008JU02      Phys.Rev. C 77, 024310 (2008)

A.Jungclaus, V.Modamio, J.L.Egido, R.Schwengner, A.Algora, D.Bazzacco, D.Escrig, M.A.Fernandez, L.M.Fraile, S.Lenzi, N.Marginean, T.Martinez, D.R.Napoli, C.A.Ur

Revised and extended level scheme of the doubly-odd nucleus 188Ir

NUCLEAR REACTIONS 186W(7Li, 5nγ), E=59 MeV; measured Eγ, Iγ, γγ-coin.188Ir; deduced levels, J, π, deformation parameters.

doi: 10.1103/PhysRevC.77.024310
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2008SC02      Phys.Rev. C 77, 011301 (2008)

N.Schunck, J.L.Egido

Continuum and symmetry-conserving effects in drip-line nuclei using finite-range forces

NUCLEAR STRUCTURE 208Pb; calculated neutron and proton single particle energies. 10,20C, 14,26O, 18,30Ne, 20,40Mg, 24,46Si, 28,50S, 32,56Ar, 36,64Ca, 40,72Ti, 44,76Cr, 46,82Fe, 52,86Ni, 58,92Zn, 62,104Ge, 66,114Se, 68,116Kr, 72,120Sr, 78,122Zr, 82,130Mo, 86,136Ru, 90,140Pd, 94,152Cd, 102,170Sn, 110,176Te, 114,178Xe, 118,180Ba, 122,184Ce, 126,186Nd, 130,188Sm, 134,190Gd, 140,198Dy, 144,206Er, 148,220Yb, 152,240Hf, 158,252W, 162,258Os, 166,260Pt, 170,262Hg, 182,264Pb, 194,268Po, 198,270Rn, 204,272Ra, 208,274Th, 214,276U, 220,282Pu, 222,296Cm; calculated Fermi levels, proton and neutron separation energies. 132,150,170,172Sn; calculated neutron densities. 42Mg; calculated projected energy. Hartree-Fock Bogoliubov mean-field theory.

doi: 10.1103/PhysRevC.77.011301
Citations: PlumX Metrics


2008SC19      Phys.Rev. C 78, 064305 (2008)

N.Schunck, J.L.Egido

Nuclear halos and drip lines in symmetry-conserving continuum Hartree-Fock-Bogoliubov theory

NUCLEAR STRUCTURE 20C, 26O, 30Ne, 40,42Mg, 46Si, 50,52S, 56,58Ar, 62,64Ca, 72Ti, 76,78Cr, 82Fe, 86,88Ni, 92,98Zn, 104Ge, 114Se, 118Kr, 120Sr, 122,124Zr, 130Mo, 136,138Ru, 140,148Pd, 152,158Cd, 168,170Sn, 178Te, 180Xe, 182Ba, 184Ce, 186Nd, 188Sm, 190,194Gd, 198,204Dy, 206,216Er, 220,230Yb, 240,244Hf, 252,254W, 258Os, 260Pt, 264Hg, 266Pb, 268Po, 270Rn, 272Ra, 274Th, 276,280U, 282,294Pu; calculated one- and two-neutron driplines, halo radii, two-neutron separation energy, neutron density. Hartree-Fock-Bogoliubov theory.

doi: 10.1103/PhysRevC.78.064305
Citations: PlumX Metrics


2007RO19      Phys.Rev.Lett. 99, 062501 (2007)

T.R.Rodriguez, J.L.Egido

New Beyond-Mean-Field Theories: Examination of the Potential Shell Closures at N = 32 or 34

NUCLEAR STRUCTURE Ca, Ti, Cr; calculated level energies and B(E2) using a beyond-mean-field-theory.

doi: 10.1103/PhysRevLett.99.062501
Citations: PlumX Metrics


2007SC27      Acta Phys.Pol. B38, 1143 (2007)

N.Schunck, J.L.Egido

Inclusion of Continuum Effects in Mean-Field Theories


2006FE13      Phys.Scr. T125, 87 (2006)

M.A.Fernandez, J.L.Egido

Pairing correlations in mesoscopic systems

doi: 10.1088/0031-8949/2006/T125/019
Citations: PlumX Metrics


2006JU05      Phys.Scr. T125, 53 (2006)

A.Jungclaus, J.L.Egido

Beyond mean field study of nuclei in the 132Sn region

NUCLEAR STRUCTURE 126,128,130Cd; calculated angular momentum projected potential energy surfaces. 122,124,126,128,130Cd, 126,128,130,132,134Te; calculated level energies.

doi: 10.1088/0031-8949/2006/T125/012
Citations: PlumX Metrics


2006RO45      Phys.Scr. T125, 216 (2006)

T.R.Rodriguez, J.L.Egido, L.M.Robledo

Towards full variation after projection solutions through restricted variational spaces

doi: 10.1088/0031-8949/2006/T125/058
Citations: PlumX Metrics


2006WA08      Int.J.Mod.Phys. E15, 504 (2006)

M.Warda, J.L.Egido, L.M.Robledo

Selfconsistent calculation of intrinsic properties of super-heavy nuclei with the Gogny force

NUCLEAR STRUCTURE 290Lv; calculated single-particle energies vs deformation. Z=100-126; calculated deformation parameters, pairing energies.

doi: 10.1142/S0218301306004442
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2005RO10      Phys.Rev. C 71, 044313 (2005)

T.R.Rodriguez, J.L.Egido, L.M.Robledo, R.Rodriguez-Guzman

Quality of the restricted variation after projection method with angular momentum projection

NUCLEAR STRUCTURE 32,34Mg; calculated level energies, quadrupole moments. Role of additional variational coordinates discussed.

doi: 10.1103/PhysRevC.71.044313
Citations: PlumX Metrics


2005RO44      Phys.Rev. C 72, 064303 (2005)

T.R.Rodriguez, J.L.Egido, L.M.Robledo

Restricted variation after projection and the Lipkin-Nogami methods

doi: 10.1103/PhysRevC.72.064303
Citations: PlumX Metrics


2005WA13      Int.J.Mod.Phys. E14, 403 (2005)

M.Warda, K.Pomorski, J.L.Egido, L.M.Robledo

The fission of 252Cf from a mean field perspective

NUCLEAR STRUCTURE 252Cf; calculated potential energy surface, shape evolution during fission. Hartree-Fock-Bogoliubov approach, Gogny force.

doi: 10.1142/S0218301305003193
Citations: PlumX Metrics


2005WA30      J.Phys.(London) G31, S1555 (2005)

M.Warda, K.Pomorski, J.L.Egido, L.M.Robledo

Multimodal fission of 252Cf in the Gogny HFB model

NUCLEAR STRUCTURE 252Cf; calculated potential energy surfaces, scission configurations. Hartree-Fock-Bogolubov model, Gogny force.

doi: 10.1088/0954-3899/31/10/031
Citations: PlumX Metrics


2004EG01      Nucl.Phys. A738, 31 (2004)

J.L.Egido, L.M.Robledo

A mean field view of some clustering phenomena in light and heavy nuclei

NUCLEAR STRUCTURE 226Ra; calculated potential energy vs deformation, cluster emission features. 24Mg; calculated cluster structure energies, fragment mass distributions. Mean-field approach.

doi: 10.1016/j.nuclphysa.2004.04.008
Citations: PlumX Metrics


2004EG02      Phys.Rev.Lett. 93, 082502 (2004)

J.L.Egido, L.M.Robledo, R.R.Rodriguez-Guzman

Unveiling the Origin of Shape Coexistence in Lead Isotopes

NUCLEAR STRUCTURE 182,184,186,188,190,192Pb; calculated level energies vs deformation, shape coexistence features. HFB approach, Gogny force.

doi: 10.1103/PhysRevLett.93.082502
Citations: PlumX Metrics


2004FE01      Int.J.Mod.Phys. E13, 235 (2004)

M.A.Fernandez, J.L.Egido

Pairing correlations in the strong fluctuations regime

doi: 10.1142/S0218301304001990
Citations: PlumX Metrics


2004MA17      Int.J.Mod.Phys. E13, 327 (2004)

V.Martin, J.L.Egido, L.M.Robledo

Thermal shape fluctuations in hot nuclei

NUCLEAR STRUCTURE 164Er, 152Dy, 192Hg, 240Pu; calculated thermal shape fluctuations, related features.

doi: 10.1142/S0218301304002132
Citations: PlumX Metrics


2004MA31      Eur.Phys.J. A 20, 33 (2004)

V.Martin, J.L.Egido, L.M.Robledo

Critical temperature for shape transitions in excited nuclei

NUCLEAR STRUCTURE 164Er; calculated deformation, thermal shape fluctuations, critical temperature for deformed-spherical shape transition. Finite-temperature HFB theory.

doi: 10.1140/epja/i2002-10315-2
Citations: PlumX Metrics


2004RO10      Int.J.Mod.Phys. E13, 139 (2004)

R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo

Description of the superdeformed band of 36Ar with the Gogny force

NUCLEAR STRUCTURE 36Ar; calculated superdeformed band energies, B(E2), related features. Self-consistent cranking approach.

doi: 10.1142/S0218301304001862
Citations: PlumX Metrics


2004RO11      Int.J.Mod.Phys. E13, 165 (2004)

T.R.Rodriguez, J.L.Egido, L.M.Robledo, R.R.Rodriguez-Guzman

On the stability of projection after variation solutions

NUCLEAR STRUCTURE 32Mg; calculated deformation energy curves. Projection after variation, stability of solution discussed.

doi: 10.1142/S0218301304001898
Citations: PlumX Metrics


2004RO19      Phys.Rev. C 69, 054319 (2004)

R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo

Beyond mean field description of shape coexistence in neutron-deficient Pb isotopes

NUCLEAR STRUCTURE 182,184,186,188,190,192Pb; calculated rotational band level energies, quadrupole moments, shape coexistence features. Angular momentum projected generator coordinate method.

doi: 10.1103/PhysRevC.69.054319
Citations: PlumX Metrics


2004WA07      Int.J.Mod.Phys. E13, 169 (2004)

M.Warda, K.Pomorski, J.L.Egido, L.M.Robledo

Microscopic structure of the bimodal fission of 258Fm

NUCLEAR STRUCTURE 258Fm; calculated single-particle level energies vs deformation, fission mechanism features.

doi: 10.1142/S0218301304001904
Citations: PlumX Metrics


2003MA40      Phys.Rev. C 68, 034327 (2003); Erratum Phys.Rev. C68, 059902 (2003)

V.Martin, J.L.Egido, L.M.Robledo

Thermal shape fluctuation effects in the description of hot nuclei

NUCLEAR STRUCTURE 164Er, 152Dy, 192Hg; calculated deformation, radii, level density vs temperature, shape fluctuation effects. Finite temperature Hartree-Fock-Bogoliubov theory with Gogny force.

doi: 10.1103/PhysRevC.68.034327
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2003RO06      Eur.Phys.J. A 17, 37 (2003)

R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo

Quadrupole collectivity of neutron-rich neon isotopes

NUCLEAR STRUCTURE 20,22,24,26,28,30,32,34Ne; calculated deformation, transitions B(E2), quadrupole collectivity. Angular momentum projected generator coordinate method.

doi: 10.1140/epja/i2002-10141-6
Citations: PlumX Metrics


2003WA15      Yad.Fiz. 66, 1214 (2003); Phys.Atomic Nuclei 66, 1178 (2003)

M.Warda, J.L.Egido, L.M.Robledo, K.Pomorski

Fission Paths in Fm Region Calculated with the Gogny Forces

NUCLEAR STRUCTURE 256,258Fm; calculated fission barriers, potential energy surfaces. Hartree-Fock-Bogoliubov approach, Gogny force.

doi: 10.1134/1.1586434
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2002AN22      Phys.Lett. 545B, 62 (2002)

M.Anguiano, J.L.Egido, L.M.Robledo

Mean-Field Based Approaches to Pairing Correlations in Atomic Nuclei

NUCLEAR STRUCTURE Sn; calculated pairing correlations, binding energies. Gogny interaction, Hartree-Fock-Bogoliubov and Lipkin-Nogami approaches, particle number projection.

doi: 10.1016/S0370-2693(02)02557-1
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2002JU08      Phys.Rev. C66, 014312 (2002)

A.Jungclaus, B.Binder, A.Dietrich, T.Hartlein, H.Bauer, Ch.Gund, D.Pansegrau, D.Schwalm, J.L.Egido, Y.Sun, D.Bazzacco, G.de Angelis, E.Farnea, A.Gadea, S.Lunardi, D.R.Napoli, C.Rossi-Alvarez, C.Ur, G.B.Hagemann

Backbending Region Study in 160, 162Dy using Incomplete Fusion Reactions

NUCLEAR REACTIONS 160Gd(7Li, X)160Ho/161Ho/162Ho/163Ho/160Dy/161Dy/162Dy/163Dy/164Dy/160Gd, E=35-67 MeV; measured production σ, charged particle angular distributions. 158,160Gd(7Li, X)160Dy/162Dy, E=56 MeV; measured Eγ, Iγ, γγ-, (charged particle)γ-coin. 160,162Dy deduced high-spin levels, J, π, configurations. GASP, ISIS arrays, incomplete fusion, comparison with model predictions.

doi: 10.1103/PhysRevC.66.014312
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1323. Data from this article have been entered in the XUNDL database. For more information, click here.


2002RO03      Phys.Rev. C65, 024304 (2002)

R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo

Quadrupole Collectivity in N ≈ 28 Nuclei with the Angular Momentum Projected Generator Coordinate Method

NUCLEAR STRUCTURE 38,40,42,44S, 40Mg, 42Si, 46Ar, 48Ca; calculated levels, quadrupole moments, potential energy surfaces. Angular momentum projected generator coordinate method.

doi: 10.1103/PhysRevC.65.024304
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2002RO32      Nucl.Phys. A709, 201 (2002)

R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo

Correlations Beyond the Mean Field in Magnesium Isotopes: Angular momentum projection and configuration mixing

NUCLEAR STRUCTURE 20,22,24,26,28,30,32,34,36,38,40Mg; calculated single-particle levels, potential energy surfaces, two-neutron separation energies, level energies, quadrupole moments; deduced configuration mixing effects. Angular momentum projected generator coordinate method.

doi: 10.1016/S0375-9474(02)01019-9
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2002WA22      Phys.Rev. C66, 014310 (2002)

M.Warda, J.L.Egido, L.M.Robledo, K.Pomorski

Self-Consistent Calculations of Fission Barriers in the Fm Region

NUCLEAR STRUCTURE 254,256,258Fm, 258No, 260Rf; calculated fission barriers, potential energy surfaces, related features. 254,256,258Fm calculated spontaneous fission T1/2. Hartree-Fock-Bogoliubov approach.

doi: 10.1103/PhysRevC.66.014310
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2001AN05      Nucl.Phys. A683, 227 (2001)

M.Anguiano, J.L.Egido, L.M.Robledo

Coulomb Exchange and Pairing Contributions in Nuclear Hartree-Fock-Bogoliubov Calculations with the Gogny Force

NUCLEAR STRUCTURE 86Kr, 88Sr, 90Zr, 92Mo, 94Ru, 132Sn, 134Te, 136Xe, 138Ba, 140Ce, 206Hg, 208Pb, 210Po, 212Rn, 214Ra; calculated binding energies, pairing energies. 164,166,168Er, 162,164,166Yb; calculated pairing energy, Eγ, B(E2), deformation vs angular momentum. 190Hg, 240Pu; calculated pairing energy, quadrupole moments, moments of inertia vs angular momentum. 254No, 226Th; calculated binding energy vs deformation. Self-consistent Hartree-Fock-Bogoliubov approach, Gogny force.

doi: 10.1016/S0375-9474(00)00445-0
Citations: PlumX Metrics


2001AN36      Nucl.Phys. A696, 467 (2001)

M.Anguiano, J.L.Egido, L.M.Robledo

Particle Number Projection with Effective Forces

NUCLEAR STRUCTURE 48,50Cr, 164Er; calculated transition energies vs angular momentum, related features. Particle-number projection method, non-separable density-dependent forces.

doi: 10.1016/S0375-9474(01)01219-2
Citations: PlumX Metrics


2001CH54      Phys.Lett. 513B, 325 (2001)

R.R.Chasman, J.L.Egido, L.M.Robledo

Persistence of Deformed Shapes in the Neutron-Deficient Pb Region

NUCLEAR STRUCTURE 182,184,186,188,190Pb; calculated 0+ states energy, quadrupole moments, deformation features. HFB method with Gogny interaction, many-body method with phenomenological interaction.

doi: 10.1016/S0370-2693(01)00382-3
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2001RO27      Acta Phys.Pol. B32, 2385 (2001)

R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo

Quadrupole Collectivity in the Si Isotopes Around N = 20

NUCLEAR STRUCTURE 32,34,36Si; calculated level energies, deformation, B(E2). Angular momentum projected generator coordinate method.


2000AF25      Phys.Rev. C62, 054306 (2000)

A.V.Afanasjev, J.Konig, P.Ring, L.M.Robledo, J.L.Egido

Moments of Inertia of Nuclei in the Rare Earth Region: A relativistic versus nonrelativistic investigation

NUCLEAR STRUCTURE 154,156,158,160Gd, 156,158,160,162,164Dy, 164,166,168,170Er, 164,166,168,170Yb; calculated rotational bands charge quadrupole moments, moments of inertia, pairing energies. Relativistic and nonrelativistic approaches compared. Comparisons with data.

doi: 10.1103/PhysRevC.62.054306
Citations: PlumX Metrics


2000EG01      Phys.Rev.Lett. 85, 26 (2000)

J.L.Egido, L.M.Robledo, V.Martin

Behavior of Shell Effects with the Excitation Energy in Atomic Nuclei

NUCLEAR STRUCTURE 152,162Dy, 164Er, 224Ra; calculated levels excitation energies, pairing energies, deformation parameters, level densities, superdeformed bands features; deduced shell effects dependence on excitation energy. Finite-temperature Hartree-Fock-Bogoliubov method, density-dependent force.

doi: 10.1103/PhysRevLett.85.26
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2000EG02      Phys.Rev.Lett. 85, 1198 (2000)

J.L.Egido, L.M.Robledo

Fission Barriers at High Angular Momentum and the Ground State Rotational Band of the Nucleus 254No

NUCLEAR STRUCTURE 254No; calculated fission barriers as a function of angular momentum and deformation, levels, J, π, moment of inertia, deformation parameters of normally deformed and superdeformed rotational bands. Hartree-Fock-Bogoliubov approach with Gogny force calculations.

doi: 10.1103/PhysRevLett.85.1198
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2000MA39      Phys.Rev.Lett. 84, 5967 (2000)

W.C.Ma, V.Martin, T.L.Khoo, T.Lauritsen, J.L.Egido, I.Ahmad, P.Bhattacharyya, M.P.Carpenter, P.J.Daly, Z.W.Grabowski, J.H.Hamilton, R.V.F.Janssens, D.Nisius, A.V.Ramayya, P.G.Varmette, C.T.Zhang

Phase Transitions Above the Yrast Line in 154Dy

NUCLEAR REACTIONS 122Sn(36S, 4n), E=165 MeV; measured Eγ, Iγ, γγ-coin. 154Dy deduced high-spin quasicontinuum spectrum characteristics, phase transitions. Gammasphere array. Comparisons with statistical model predictions.

doi: 10.1103/PhysRevLett.84.5967
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2000RO06      Phys.Lett. 474B, 15 (2000)

R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo

Angular Momentum Projected Analysis of Quadrupole Collectivity in 30, 32, 34Mg and 32, 34, 36, 38Si with the Gogny Interaction

NUCLEAR STRUCTURE 30,32,34Mg, 32,34,36,38Si; calculated 2+ levels energy, B(E2), potential energy surfaces. HFB theory, exact angular momentum projection.Comparison with data.

doi: 10.1016/S0370-2693(00)00015-0
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2000RO36      Phys.Rev. C62, 054308 (2000)

R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo

Properties of the Predicted Superdeformed Bands in 32S

NUCLEAR STRUCTURE 32S; calculated superdeformed band excitation energy, transitions B(E2), moment of inertia, related features. Self-consistent cranking approach.

doi: 10.1103/PhysRevC.62.054308
Citations: PlumX Metrics


2000RO37      Phys.Rev. C62, 054319 (2000)

R.R.Rodriguez-Guzman, J.L.Egido, L.M.Robledo

Description of Quadrupole Collectivity in N ≈ 20 Nuclei with Techniques Beyond the Mean Field

NUCLEAR STRUCTURE 30,32,34Mg; calculated collective levels, J, π, B(E2), quadrupole moments. Angular momentum projected generator coordinate method.

doi: 10.1103/PhysRevC.62.054319
Citations: PlumX Metrics


2000VA02      Nucl.Phys. A665, 46 (2000)

A.Valor, J.L.Egido, L.M.Robledo

Approximate Particle Number Projection with Density Dependent Forces: Superdeformed bands in the A = 150 and A = 190 regions

NUCLEAR STRUCTURE 150Gd, 152Dy, 190,192,194Hg, 194Pb; calculated superdeformed bands Eγ, quadrupole moments, related features. Cranked HFB and cranked Lipkin-Nogami approaches, approximate particle number projection.

doi: 10.1016/S0375-9474(99)00430-3
Citations: PlumX Metrics


2000VA09      Nucl.Phys. A671, 189 (2000)

A.Valor, J.L.Egido, L.M.Robledo

Implementation of a Variational Approach to Approximate Particle Number Projection with Effective Forces

NUCLEAR STRUCTURE 152Dy, 164Er, 190Hg; calculated normal-deformed, superdeformed rotational bands moments of inertia, related features. Self-consistent calculations, approximate particle number projection with effective forces.

doi: 10.1016/S0375-9474(99)00841-6
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1999GA60      Nucl.Phys. (Supplement) A654, 723c (1999)

E.Garrote, J.L.Egido, L.M.Robledo

Theoretical Description of the Octupole Phase Transition in Lanthanide Nuclei at High Spin

NUCLEAR STRUCTURE 144Ba, 146Ce, 148Nd, 150Sm; calculated high-spin levels, J, π. Hartree-Fock-Bogoliubov approximation, comparison with data.

doi: 10.1016/S0375-9474(00)88535-8
Citations: PlumX Metrics


1998AR08      Phys.Rev. C57, 2924 (1998)

D.E.Archer, M.A.Riley, T.B.Brown, D.J.Hartley, J.Doring, G.D.Johns, J.Pfohl, S.L.Tabor, J.Simpson, Y.Sun, J.L.Egido

Rotational Bands in 170Yb and 171Yb and the Projected Shell Model

NUCLEAR REACTIONS 170Er(α, 3n), (α, 4n), E=35, 40 MeV; measured Eγ, Iγ, γγ-coin, DCO. 170,171Yb deduced high-spin levels, J, π, band structure, configurations. Cranked shell-model analysis, projected shell-model calculations.

doi: 10.1103/PhysRevC.57.2924
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Data from this article have been entered in the XUNDL database. For more information, click here.


1998GA15      Phys.Rev.Lett. 80, 4398 (1998)

E.Garrote, J.L.Egido, L.M.Robledo

Fingerprints of Reflection Asymmetry at High Angular Momentum in Atomic Nuclei

NUCLEAR STRUCTURE 144Ba, 146Ce, 148Nd, 150Sm; calculated deformation, excitation energy vs spin, transitions B(E1); deduced reflection asymmetry features. HFB calculations, projection after variation approach.

doi: 10.1103/PhysRevLett.80.4398
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1997EG01      Phys.Lett. 393B, 13 (1997)

J.L.Egido, L.M.Robledo, R.R.Chasman

Nuclear Shapes in 176W with Density Dependent Forces: From ground state to fission

NUCLEAR STRUCTURE 176W; calculated energy surface. HPB, density-dependent forces.

doi: 10.1016/S0370-2693(96)01602-4
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1997GA27      Phys.Lett. 410B, 86 (1997)

E.Garrote, J.L.Egido, L.M.Robledo

A Microscopic Study of the Octupole Degree of Freedom at High Angular Momentum

NUCLEAR STRUCTURE 144Ba, 146Ce, 224Ra; caclulated high-spin rotational bands dipole moments, B(λ); deduced octupole deformation. Comparisons with experiment. Microscopic parity and number projected calculations.

doi: 10.1016/S0370-2693(97)00942-8
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1997VA03      Phys.Lett. 393B, 249 (1997)

A.Valor, J.L.Egido, L.M.Robledo

A New Approach to Approximate Symmetry Restoration with Density Dependent Forces: The superdeformed band in 192Hg

NUCLEAR STRUCTURE 192Hg; calculated superdeformed band associated dynamic moment of inertia.

doi: 10.1016/S0370-2693(96)01592-4
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1997VI07      Phys.Lett. 408B, 35 (1997)

A.Villafranca, J.L.Egido

Self-Consistent Description of the Excited Superdeformed Bands in 191Hg

NUCLEAR STRUCTURE 191Hg; calculated superdeformed levels, deformations, Eγ, charge quadrupole moment vs spin, moments of inertia; deduced configurations. Self-consistent cranked Hartree-Fock-Bogoliubov calculations, Lipkin-Nogami method, Gogny force.

doi: 10.1016/S0370-2693(97)00838-1
Citations: PlumX Metrics


1996EG01      Phys.Rev. C53, 2855 (1996)

J.L.Egido, V.Martin, L.M.Robledo, Y.Sun

E3 Transition Probabilities in the Platinum, Mercury, and Lead Isotopes

NUCLEAR STRUCTURE 194,196,198Pt, 198,200,202,204Hg, 204,206,208Pb; calculated collective potential energies, n-, p-pairing energies, β2, dipole moment, B(E3). Hartree-Fock plus BCS framework.

doi: 10.1103/PhysRevC.53.2855
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1996GO08      Phys.Lett. 379B, 13 (1996)

T.Gonzalez-Llarena, J.L.Egido, G.A.Lalazissis, P.Ring

Relativistic Hartree-Bogoliubov Calculations with Finite Range Pairing Forces

NUCLEAR STRUCTURE 202,204,206,208,210,212,214Pb; calculated binding energy per nucleon, isotope shifts. 118,120,122,124,126Zr; calculated binding energies; 112,114,116,118,120,122,124,126,128,130,132Sn; calculated binding energy per nucleon. Relativistic Hartree-Bogoliubov calculations, finite-range pairing forces.

doi: 10.1016/0370-2693(96)00461-3
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1996NA01      Nucl.Phys. A596, 53 (1996)

R.G.Nazmitdinov, L.M.Robledo, P.Ring, J.L.Egido

Representation of Three-Dimensional Rotations in Oscillator Basis Sets

doi: 10.1016/0375-9474(95)00382-7
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1996RO17      Nucl.Phys. A605, 1 (1996)

R.Rossignoli, N.Canosa, J.L.Egido

Finite Temperature Canonical Treatments in the Static Path Approximation

NUCLEAR STRUCTURE 152Dy, 164Er; calculated normalized partial distributions vs deformation parameters, nucleon gap energies, density deformation averages, other aspects. Static path approximation, finite temperature canonical treatments.

doi: 10.1016/0375-9474(96)00161-3
Citations: PlumX Metrics


1996RO20      Nucl.Phys. A607, 250 (1996)

R.Rossignoli, N.Canosa, J.L.Egido

Spin-Projected Treatment of Hot Rotating Nuclei in the Static Path Approximation

NUCLEAR STRUCTURE 152Dy; calculated fluctuations normalized integrated probability distributions vs β. Spin projected, nonprojected treatments, quadrupole-quadrupole interaction, static path approximation.

doi: 10.1016/S0375-9474(96)00230-8
Citations: PlumX Metrics


1996SU03      Phys.Rev. C53, 2227 (1996)

Y.Sun, C.-L.Wu, D.H.Feng, J.L.Egido, M.Guidry

Identical Bands at Normal Deformation: Necessity of going beyond the mean-field approach

NUCLEAR STRUCTURE 170Yb, 171Lu; analyzed identical band data; deduced need to go beyond mean field approach. Projected shell model.

doi: 10.1103/PhysRevC.53.2227
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1996VA01      Phys.Rev. C53, 172 (1996)

A.Valor, J.L.Egido, L.M.Robledo

Approximate Particle Number Projection for Finite Range Density Dependent Forces

NUCLEAR STRUCTURE 164,168Er; calculated pairing energies, B(λ) vs spin. Lipkin-Nogami method.

doi: 10.1103/PhysRevC.53.172
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1995BA45      J.Phys.(London) G21, 657 (1995)

A.Baran, J.L.Egido, B.Nerlo-Pomorska, K.Pomorski, P.Ring, L.M.Robledo

Mean-Field Calculations of Proton and Neutron Distributions in Sr, Xe and Ba Isotopes

NUCLEAR STRUCTURE 78,80,82,84,86,88,90,92,94,96,98,100,102Sr, 114,116,118,120,122,124,126,128,130,132,134,136,138,140,142,144,146Xe, 120,122,124,126,130,132,134,136,138,140,142,144,146,148Ba; calculated rms radii, n-, p- radii, quadrupole deformations differences, electric quadrupole moments. Mean field approach.

doi: 10.1088/0954-3899/21/5/010
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1995CA33      Phys.Rev.Lett. 75, 2466 (1995)

E.Caurier, J.L.Egido, G.Martinez-Pinedo, A.Poves, J.Retamosa, L.M.Robledo, A.P.Zuker

Intrinsic vs Laboratory Frame Description of the Deformed Nucleus 48Cr

NUCLEAR STRUCTURE 48Cr; calculated levels, g vs spin, B(E2), intrinsic quadrupole moment. Spherical shell model, HFB method.

doi: 10.1103/PhysRevLett.75.2466
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1995EG01      Nucl.Phys. A594, 70 (1995)

J.L.Egido, J.Lessing, V.Martin, L.M.Robledo

On the Solution of the Hartree-Fock-Bogoliubov Equations by the Conjugate Gradient Method

NUCLEAR STRUCTURE 164Er; calculated yrast band levels. Gogny force, HFB by conjugate gradient method.

doi: 10.1016/0375-9474(95)00370-G
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1995MA39      Phys.Rev. C51, 3084 (1995)

V.Martin, J.L.Egido

Nuclear Structure Effects of the Nuclei 152,154,156Dy at High Excitation Energy and Large Angular Momentum

NUCLEAR STRUCTURE 152,154,156Dy; calculated energy gaps, moments of inertia, entropy; analyzed shapes; deduced observed structure. Cranked finite-temperature HFB theory.

doi: 10.1103/PhysRevC.51.3084
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1995MA40      Phys.Rev. C51, 3096 (1995)

V.Martin, J.L.Egido, T.L.Khoo, T.Lauritsen

Numerical Simulation of the Electromagnetic Decay of the Nuclei 152,154,156Dy with Self-Consistent Collective Strength Functions

NUCLEAR STRUCTURE 152,154,156Dy; calculated quasicontinuum associated γ transition probabilities. Finite temperature microscopic Hartree-Fock calculations.

doi: 10.1103/PhysRevC.51.3096
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1995RO26      Phys.Lett. 355B, 15 (1995)

R.Rossignoli, J.L.Egido

Microcanonical Averages and the Validity of Statistical Treatments

doi: 10.1016/0370-2693(95)00715-W
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1994EG02      Phys.Lett. 322B, 22 (1994)

J.L.Egido, L.M.Robledo, R.R.Chasman

High Spin Shapes in 182Os with Density Dependent Forces

NUCLEAR STRUCTURE 182Os; calculated potential energy, neutron, proton pairing energy vs quadrupole moment, shape density; deduced axis ratios for shape minima.

doi: 10.1016/0370-2693(94)90485-5
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1994EG03      Nucl.Phys. A570, 69c (1994)

J.L.Egido, L.M.Robledo

High Spin Properties of the Er and Yb Isotopes with the Gogny Force

NUCLEAR STRUCTURE 166Er, 166Yb; calculated B(E2), g factor; deduced i13/2 neutron intruder state role in backbending. Parameter free cranked mean field, Gogny force.

doi: 10.1016/0375-9474(94)90270-4
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1994SU07      Nucl.Phys. A570, 305c (1994)

Y.Sun, L.M.Robledo, J.L.Egido

Calculation of Transition Probabilities Beyond the Mean Field Approximation with Angular Momentum Projection

NUCLEAR STRUCTURE 144,148Nd; calculated B(λ). Generator coordinate method type wave functions, angular momentum projection, density-dependent Gogny force.

doi: 10.1016/0375-9474(94)90296-8
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1994SU15      Phys.Rev. C50, 1893 (1994)

Y.Sun, J.L.Egido

Excited Bands of 168Yb in an Angular Momentum Projected Theory

NUCLEAR STRUCTURE 168Yb; calculated levels, g-factors, transition quadrupole moments. Angular momentum projected TDA.

doi: 10.1103/PhysRevC.50.1893
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1994SU24      Nucl.Phys. A580, 1 (1994)

Y.Sun, J.L.Egido

Angular-Momentum-Projected Description of the Yrast Line of Dysprosium Isotopes

NUCLEAR STRUCTURE 154,156,158,160,162,164Dy; calculated levels, moment of inertia, g factors, B(λ). Cranking approach, angular momentum projected TDA.

doi: 10.1016/0375-9474(94)90811-7
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1993EG01      J.Phys.(London) G19, 1 (1993)

J.L.Egido, P.Ring

The Decay of Hot Nuclei

NUCLEAR STRUCTURE 158Er, 92Mo; compiled, reviewed dipole absorption σ(E). 164Er; compiled, reviewed GDR peak energy vs temperature. Other hot nuclei decay reviewed.

doi: 10.1088/0954-3899/19/1/002
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1993EG02      Phys.Rev.Lett. 70, 2876 (1993)

J.L.Egido, L.M.Robledo

High-Spin States in Heavy Nuclei with the Density Dependent Gogny Force

NUCLEAR STRUCTURE 164Er; calculated levels, B(λ), g-factors ratios. Self-consistent cranking Hartree-Fock-Bogoliubov equations.

doi: 10.1103/PhysRevLett.70.2876
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1993EG03      Nucl.Phys. A553, 539c (1993)

J.L.Egido, L.M.Robledo

High Spin Calculations with the Gogny Force

NUCLEAR STRUCTURE 80Sr; calculated levels. Self-consistent cranked calculations, Gogny interaction.

doi: 10.1016/0375-9474(93)90656-I
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1993EG04      Nucl.Phys. A560, 253 (1993)

J.L.Egido, L.M.Robledo, Y.Sun

On the Calculation of Transition Probabilities with Correlated Angular-Momentum-Projected Wave Functions and Realistic Forces

NUCLEAR STRUCTURE 14C, 16,18O; calculated level potential energies, B(λ). Angular momentum projected generator coordinate method.

doi: 10.1016/0375-9474(93)90095-F
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1992EG01      Nucl.Phys. A545, 589 (1992)

J.L.Egido, L.M.Robledo

A Systematic Study of the Octupole Correlations in the Lanthanides with Realistic Forces

NUCLEAR STRUCTURE 148,146,144,142,140Ba, 142,144,146,148,150Ce, 144,146,148,150,152Nd, 146,148,150,152,154Sm; calculated collective potential energies, level splittings, B(λ), dipole moments, ground state deformations. Adiabatic time dependent Hartree-Fock plus zero point energy, cranking approximation.

doi: 10.1016/0375-9474(92)90294-T
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1991EG01      Nucl.Phys. A524, 65 (1991)

J.L.Egido, L.M.Robledo

Parity-Projected Calculations on Octupole Deformed Nuclei

NUCLEAR STRUCTURE 142,144,146,148Ba, 218,220,222,226,228,230Ra; calculated level energies vs octupole moment, B(λ). Microscopic parity projection.

doi: 10.1016/0375-9474(91)90016-Y
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1990EG01      Nucl.Phys. A518, 475 (1990)

J.L.Egido, L.M.Robledo

A Self-Consistent Approach to the Ground State and Lowest-Lying Negative-Parity State in the Barium Isotopes

NUCLEAR STRUCTURE 142,144,146,148Ba; calculated pairing, single particle energies, collective potential energies, dipole moment, deformation parameters vs octupole moment, B(λ). Hartree-Fock plus BCS theory.

doi: 10.1016/0375-9474(90)90141-8
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1989EG02      Nucl.Phys. A494, 85 (1989)

J.L.Egido, L.M.Robledo

Microscopic Study of the Octupole Degree of Freedom in the Radium and Thorium Isotopes with Gogny Forces

NUCLEAR STRUCTURE 218,220,222,224,226,228,230Ra, 222,224,226,228,230Th; calculated octupole barrier energies, pairing energy, deformations β2, β4, β6, dipole moment vs constrained quadrupole moment. Microscopic model.

doi: 10.1016/0375-9474(89)90199-1
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