NSR Query Results
Output year order : Descending NSR database version of April 27, 2024. Search: Author = J.Barea Found 35 matches. 2023BA16 Phys.Rev. C 108, 014306 (2023) Next-to-leading order terms in the neutrinoless double-β decay transition operator of the interacting boson model RADIOACTIVITY 48Ca, 76Ge, 82Se, 96Zr, 100Mo, 110Pd, 116Cd, 124Sn, 128,130Te, 134,136Xe, 148,150Nd, 154Sm, 160Gd, 198Pt, 232Th, 238U(2β-); calculated nuclear matrix elements for 0ν2β-decay to the ground state and first exited 0+ states, GT matrix elements to the ground state. Evaluated the contribution of next-to-leading order terms using interacting boson model (IBM).
doi: 10.1103/PhysRevC.108.014306
2021VA08 Phys.Rev. C 104, 014308 (2021) Octupole and quadrupole modes in radon isotopes using the proton-neutron interacting boson model NUCLEAR STRUCTURE 214,216,218,220,222,224,226Rn; calculated levels, J, π, yrast positive- and negative-parity states, B(E1), B(E2), B(E3), B(M1), magnetic dipole and electric quadrupole moments, s-, p-, d-, and f-boson contents for protons and neutrons of the low-lying states using the spdf-IBM-2 interacting boson model; discussed transition from vibrational to rotational spectra. Comparison with experimental data.
doi: 10.1103/PhysRevC.104.014308
2017MA13 Phys.Rev. C 95, 034317 (2017) General form of the boson-fermion interaction in the interacting boson-fermion model-2
doi: 10.1103/PhysRevC.95.034317
2016KO28 Phys.Rev. C 94, 034320 (2016) Occupation probabilities of single particle levels using the microscopic interacting boson model: Application to some nuclei of interest in neutrinoless double-β decay NUCLEAR STRUCTURE 76Ge, 76Se; 100Mo, 100Ru; 128Te, 128Xe; 130Te, 130Xe; 136Xe, 136Ba; 150Nd, 150Sm; calculated neutron and proton occupancies and change in occupancies between the pair of nuclei involved for example in double-beta decay using microscopic interacting boson model IBM-2 approach. Comparison with BCS, (interacting) shell model (ISM), and available experimental data. Relevance to ground-state occupancies of valence protons and neutrons of double-β decay nuclei with A=76, 100, 128, 130, 136 and 150.
doi: 10.1103/PhysRevC.94.034320
2016MA19 Phys.Rev. C 93, 034332 (2016) E.Mardones, J.Barea, C.E.Alonso, J.M.Arias β-decay rates of 121-131Cs in the microscopic interacting boson-fermion model NUCLEAR STRUCTURE 121,123,125,127,129,131Cs, 121,123,125,127,129,131Xe; calculated positive-parity levels, J using IBFM-2 model. Comparison with experimental values. RADIOACTIVITY 121,123,125,127,129,131Cs(β+); calculated logft values with and without number operator approximation (NOA) using neutron-proton interacting boson fermion model (IBFM-2). Comparison with experimental values.
doi: 10.1103/PhysRevC.93.034332
2015BA12 Phys.Rev. C 91, 034304 (2015) 0νββ and 2νββ nuclear matrix elements in the interacting boson model with isospin restoration
doi: 10.1103/PhysRevC.91.034304
2015KO15 Phys.Rev. C 91, 064310 (2015) Phase-space factors and half-life predictions for Majoron-emitting β-β- decay RADIOACTIVITY 48Ca, 76Ge, 82Se, 96Zr, 100Mo, 110Pd, 116Cd, 124Sn, 128,130Te, 134,136Xe, 148,150Nd, 154Sm, 160Gd, 198Pt, 232Th, 238U(2β-); calculated Phase space factors using screened exact finite size Coulomb wave functions, half-lives for Majoron-emitting double-beta decay, single electron spectra, summed electron spectra, and angular correlations between the two outgoing electrons for 136Xe 0νββM decay mode. Comparison with experimental data for half-lives.
doi: 10.1103/PhysRevC.91.064310
2014KO18 Phys.Rev. C 89, 064319 (2014) Neutrinoless double-electron capture RADIOACTIVITY 124Xe, 152Gd, 156Dy, 164Er, 180W(2EC); calculated prefactors, nuclear matrix elements, half-lives for 0νϵϵ decay mode for light and heavy neutrino exchange. IBM-2 model and Argonne short-range correlation (SRC). NUCLEAR STRUCTURE 124Xe, 124Te, 152Gd, 152Sm, 156Dy, 156Gd, 164Er, 164Dy, 180W, 180Hf; calculated levels, J, π using microscopic interacting boson model (IBM-2). Comparison with experimental data.
doi: 10.1103/PhysRevC.89.064319
2013BA05 Phys.Rev. C 87, 014315 (2013) Nuclear matrix elements for double-β decay RADIOACTIVITY 48Ca, 76Ge, 82Se, 96Zr, 100Mo, 110Pd, 116Cd, 124Sn, 128,130Te, 148,150Nd, 154Sm, 160Gd, 198Pt(2β-); calculated nuclear matrix elements, half-lives for neutrinoless and two-neutrino double-β decay; deduced limits on ν mass from experiments and calculations, gA, gV. Microscopic interacting boson model (IBM-2). Light neutrino and heavy neutrino exchange. Comparison with QRPA-Tu and ISM calculation.
doi: 10.1103/PhysRevC.87.014315
2013BA18 Phys.Rev. C 87, 057301 (2013) Neutrinoless double-positron decay and positron-emitting electron capture in the interacting boson model RADIOACTIVITY 58Ni, 64Zn, 78Kr, 96Ru, 106Cd, 124Xe, 130Ba, 136Ce(2β+), (2EC), (β+EC); calculated nuclear matrix elements for 0νββ, 0νϵβ, and 0νϵϵ decay modes, half-lives. Microscopic interacting boson model (IBM-2).
doi: 10.1103/PhysRevC.87.057301
2013BE38 Phys.Rev.Lett. 111, 172501 (2013) J.Beller, N.Pietralla, J.Barea, M.Elvers, J.Endres, C.Fransen, J.Kotila, O.Moller, A.Richter, T.R.Rodriguez, C.Romig, D.Savran, M.Scheck, L.Schnorrenberger, K.Sonnabend, V.Werner, A.Zilges, M.Zweidinger Constraint on 0νββ Matrix Elements from a Novel Decay Channel of the Scissors Mode: The Case of 154Gd NUCLEAR REACTIONS 154Gd(γ, γ'), E<4.5 MeV; measured reaction products, Eγ, Iγ; deduced level energies, J, π, B(M1), B(E1). Comparison with IBM-2 and EDF calculations. RADIOACTIVITY 154Sm(2β-); calculated neutrinoless nuclear matrix elements.
doi: 10.1103/PhysRevLett.111.172501
2012BA30 Phys.Rev.Lett. 109, 042501 (2012) Limits on Neutrino Masses from Neutrinoless Double-β Decay RADIOACTIVITY 48Ca, 76Ge, 82Se, 96Zr, 100Mo, 110Pd, 116Cd, 124Sn, 128,130Te, 136Xe, 148,150Nd, 154Sm, 160Gd, 198Pt(2β-); analyzed theoretical and experimental data; calculated neutrinoless nuclear matrix elements; deduced neutrino mass limits.
doi: 10.1103/PhysRevLett.109.042501
2012FI01 Phys.Rev.Lett. 108, 062502 (2012) D.Fink, J.Barea, D.Beck, K.Blaum, Ch.Bohm, Ch.Borgmann, M.Breitenfeldt, F.Herfurth, A.Herlert, J.Kotila, M.Kowalska, S.Kreim, D.Lunney, S.Naimi, M.Rosenbusch, S.Schwarz, L.Schweikhard, F.Simkovic, J.Stanja, K.Zuber Q Value and Half-Lives for the Double-β-Decay Nuclide 110Pd RADIOACTIVITY 110Pd(2β-); measured resonance frequencies;deduced precise Q-value. Comparison with AME2003 atomic mass evaluation, phase-space factor calculations.
doi: 10.1103/PhysRevLett.108.062502
2011BA04 Phys.Rev. C 83, 024307 (2011) J.Barea, C.E.Alonso, J.M.Arias Odd-even 147-153Pm isotopes within the neutron-proton interacting boson-fermion model NUCLEAR STRUCTURE 147,149,151,153Pm; calculated levels, J, π, bands, B(M1), B(E2), spectroscopic factors for pickup and stripping reactions, electrical quadrupole and magnetic dipole moments. Neutron-proton interacting boson-fermion model (IBFM-2). Comparison with experimental data.
doi: 10.1103/PhysRevC.83.024307
2010BA32 Phys.Rev. C 82, 024316 (2010) J.Barea, J.M.Arias, J.E.Garcia Ramos Relationship between X(5) models and the interacting boson model
doi: 10.1103/PhysRevC.82.024316
2010MO02 Phys.Rev. C 81, 024304 (2010) I.O.Morales, P.Van Isacker, V.Velazquez, J.Barea, J.Mendoza-Temis, J.C.Lopez Vieyra, J.G.Hirsch, A.Frank Image reconstruction techniques applied to nuclear mass models ATOMIC MASSES N=8-160, Z=8-106; analyzed masses and S(2n) for about 7000 nuclides in N-Z plane using image reconstruction techniques. Comparison of measured and calculated masses using the liquid-drop model (LDM), the liquid-drop model with schematic shell correction (LDMM), the Duflo-Zuker model (DZ), and the Garvey-Kelson relations. Improved predictions of nuclear mass models.
doi: 10.1103/PhysRevC.81.024304
2009BA10 Phys.Rev. C 79, 031304 (2009) J.Barea, R.Bijker, A.Frank, G.Graw, R.Hertenberger, H.-F.Wirth, S.Christen, J.Jolie, D.Tonev, M.Balodis, J.Berzins, N.Kramere, T.von Egidy New supersymmetric quartet of nuclei in the A ∼ 190 mass region NUCLEAR STRUCTURE 192,193Os, 193,194Ir; calculated level energies, J, π in the framework of supersymmetric quartet using Interacting boson model and interacting boson-fermion model. Comparison with experimental data.
doi: 10.1103/PhysRevC.79.031304
2009BA20 Phys.Rev. C 79, 044301 (2009) Neutrinoless double-β decay in the microscopic interacting boson model RADIOACTIVITY 76Ge, 82Se, 100Mo, 128,130Te, 136Xe, 150Nd, 154Sm(2β-); calculated neutrinoless double-beta decay nuclear matrix elements, dependence of matrix elements on neutron number, valence neutron pairs and proton number. Microscopic interacting boson model, shell model and quasiparticle random phase approximation (QRPA) calculations.
doi: 10.1103/PhysRevC.79.044301
2009BA24 Phys.Rev. C 79, 054302 (2009) Eigenvalue correlations and the distribution of ground state angular momenta for random many-body quantum systems
doi: 10.1103/PhysRevC.79.054302
2008BA17 Phys.Rev. C 77, 041304 (2008) J.Barea, A.Frank, J.G.Hirsch, P.Van Isacker, S.Pittel, V.Velazquez Garvey-Kelson relations and the new nuclear mass tables NUCLEAR STRUCTURE Z=5-100, N=8-270; deduced Garvey-Kelson mass relations. Finite-range liquid-drop model (FRDM), Duflo-Zuker(DZ) model, and Hartree-Fock-Bogoliubov model. Comparison with evaluated masses.
doi: 10.1103/PhysRevC.77.041304
2008BA25 Phys.Rev. C 77, 064602 (2008) M.Balodis, H.-F.Wirth, G.Graw, R.Hertenberger, J.Berzins, N.Kramere, J.Jolie, S.Christen, O.Moller, D.Tonev, J.Barea, R.Bijker, A.Frank, T.von Egidy Transfer and neutron capture reactions to 194Ir as a test of Uν(6/12)(X)Uπ(6/4) supersymmetry NUCLEAR REACTIONS 193Ir(d, p), E=22 MeV; 196Pt(polarized d, α), E=18 MeV; measured particle spectra, σ(θ), spectroscopic strengths, analyzing powers, angular distributions. 193Ir(n, γ), (n, e-); analyzed Eγ, Iγ, electron spectra, conversion coefficients. 194Ir; deduced levels, J, π, multipolarities, bands. Comparison with theoretical data.
doi: 10.1103/PhysRevC.77.064602
2008HI20 Int.J.Mod.Phys. E17, Supplement 1, 398 (2008) J.G.Hirsch, I.Morales, J.Mendoza-Temis, A.Frank, J.C.Lopez-Vieyra, J.Barea, S.Pittel, P.van Isacker, V.Velazquez The art of predicting nuclear masses
doi: 10.1142/S0218301308012014
2008ME01 Nucl.Phys. A799, 84 (2008) J.Mendoza-Temis, A.Frank, J.G.Hirsch, J.C.Lopez Vieyra, I.Morales, J.Barea, P.Van Isacker, V.Velazquez Nuclear masses and the number of valence nucleons ATOMIC MASSES A=1-293; analyzed atomic mass data with new empirical mass formula.
doi: 10.1016/j.nuclphysa.2007.11.010
2008ME13 Nucl.Phys. A812, 28 (2008) J.Mendoza-Temis, I.Morales, J.Barea, A.Frank, J.G.Hirsch, J.C.Lopez Vieyra, P.Van Isacker, V.Velazquez Testing the predictive power of nuclear mass models ATOMIC MASSES Z=8-108; A=16-256; analyzed masses using extrapolation with three mass models.
doi: 10.1016/j.nuclphysa.2008.08.008
2007BA83 Eur.Phys.J. Special Topics 150, 189 (2007) J.Barea, A.Frank, J.G.Hirsch, P.Van Isacker, V.Velazquez Masses of atomic nuclei far from stability
doi: 10.1140/epjst/e2007-00301-x
2006HI14 Phys.Scr. T125, 158 (2006) J.G.Hirsch, V.Velazquez, A.Frank, J.Barea, P.Van Isacker, A.P.Zuker An upper limit of ground-state energy fluctuations in nuclear masses
doi: 10.1088/0031-8949/2006/T125/036
2006MO41 Int.J.Mod.Phys. E15, 1855 (2006) I.Morales, A.Frank, J.C.Lopez-Vieyra, J.Barea, J.G.Hirsch, V.Velazquez, P.van Isacker Predicting nuclear masses by image reconstruction
doi: 10.1142/S0218301306005228
2005BA03 Phys.Rev. C 71, 014314 (2005) J.Barea, C.E.Alonso, J.M.Arias, J.Jolie One nucleon transfer operator and nuclear supersymmetry NUCLEAR STRUCTURE 195Pt; calculated one-nucleon transfer strengths. Interacting boson-fermion model, importance of consistent coupling order for angular momenta discussed.
doi: 10.1103/PhysRevC.71.014314
2005BA24 Phys.Rev.Lett. 94, 102501 (2005) J.Barea, A.Frank, J.G.Hirsch, P.Van Isacker Nuclear Masses Set Bounds on Quantum Chaos
doi: 10.1103/PhysRevLett.94.102501
2005BA42 Phys.Rev.Lett. 94, 152501 (2005) Two-Nucleon Transfer Reactions Uphold Supersymmetry in Atomic Nuclei NUCLEAR REACTIONS 198Hg(polarized d, α), E not given; analyzed spectroscopic strength distribution, related data; deduced supersymmetry features.
doi: 10.1103/PhysRevLett.94.152501
2005HI22 Eur.Phys.J. A 25, Supplement 1, 75 (2005) J.G.Hirsch, A.Frank, J.Barea, P.Van Isacker, V.Velazquez Bounds on the presence of quantum chaos in nuclear masses NUCLEAR STRUCTURE Z=8-120; A=16-280; analyzed atomic masses. Finite-range droplet model, comparison with data and other models.
doi: 10.1140/epjad/i2005-06-050-0
2003GA22 Phys.Rev. C 68, 024307 (2003) J.E.Garcia-Ramos, J.M.Arias, J.Barea, A.Frank Phase transitions and critical points in the rare-earth region NUCLEAR STRUCTURE 144,146,148,150,152,154Nd, 146,148,150,152,154,156,158,160Sm, 148,150,152,154,156,158,160,162Gd, 150,152,154,156,158,160,162,164,166Dy; calculated levels, J, π, B(E2), two-neutron separation energies; deduced phase transitions, related features. Interacting boson model.
doi: 10.1103/PhysRevC.68.024307
2002BA27 Phys.Rev. C65, 034328 (2002) J.Barea, C.E.Alonso, J.M.Arias Boson-Conserving One-Nucleon Transfer Operator in the Interacting Boson Model
doi: 10.1103/PhysRevC.65.034328
2001BB01 Phys.Rev. C64, 064313 (2001) J.Barea, R.Bijker, A.Frank, G.Loyola Single-Particle Transfer and Nuclear Supersymmetry
doi: 10.1103/PhysRevC.64.064313
2000GI12 Eur.Phys.J. A 8, 41 (2000) A.Gizon, B.Weiss, P.Paris, C.F.Liang, J.Genevey, J.Gizon, V.Barci, Gh.Cata-Danil, J.S.Dionisio, J.M.Lagrange, M.Pautrat, J.Vanhorenbeeck, Ch.Vieu, L.Zolnai, J.M.Arias, J.Barea, Ch.Droste Level Structure of 123Cs Observed from 123Ba Decay and Described using the IBFM and CQPC Models RADIOACTIVITY 123Ba(EC) [from La(3He, X)]; measured Eγ, Iγ, E(ce), I(ce), γγ-, (X-ray)γ-, (ce)γ-coin. 123Cs deduced levels, J, π, configurations. Level systematics in Cs isotopes discussed. Mass-separated source. NUCLEAR REACTIONS In(12C, X)123Cs, E=57 MeV; measured Eγ, Iγ(t). 123Cs deduced isomers T1/2. NUCLEAR STRUCTURE 123Cs; calculated levels, J, π. Interacting boson-fermion model, core-quasiparticle coupling model.
doi: 10.1007/s100530050007
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