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NSR database version of April 11, 2024.

Search: Author = J.Barea

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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
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2021VA08      Phys.Rev. C 104, 014308 (2021)

O.Vallejos, J.Barea

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
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2017MA13      Phys.Rev. C 95, 034317 (2017)

F.A.Matus, J.Barea

General form of the boson-fermion interaction in the interacting boson-fermion model-2

doi: 10.1103/PhysRevC.95.034317
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2016KO28      Phys.Rev. C 94, 034320 (2016)

J.Kotila, J.Barea

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
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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
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2015BA12      Phys.Rev. C 91, 034304 (2015)

J.Barea, J.Kotila, F.Iachello

0νββ and 2νββ nuclear matrix elements in the interacting boson model with isospin restoration

doi: 10.1103/PhysRevC.91.034304
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2015KO15      Phys.Rev. C 91, 064310 (2015)

J.Kotila, J.Barea, F.Iachello

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
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2014KO18      Phys.Rev. C 89, 064319 (2014)

J.Kotila, J.Barea, F.Iachello

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
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2013BA05      Phys.Rev. C 87, 014315 (2013)

J.Barea, J.Kotila, F.Iachello

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
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2013BA18      Phys.Rev. C 87, 057301 (2013)

J.Barea, J.Kotila, F.Iachello

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
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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
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2012BA30      Phys.Rev.Lett. 109, 042501 (2012)

J.Barea, J.Kotila, F.Iachello

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
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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
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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
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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
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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
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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
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2009BA20      Phys.Rev. C 79, 044301 (2009)

J.Barea, F.Iachello

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
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2009BA24      Phys.Rev. C 79, 054302 (2009)

J.Barea, R.Bijker, A.Frank

Eigenvalue correlations and the distribution of ground state angular momenta for random many-body quantum systems

doi: 10.1103/PhysRevC.79.054302
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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
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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
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetD0501. Data from this article have been entered in the XUNDL database. For more information, click here.

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
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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
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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
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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
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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
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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
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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
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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
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2005BA42      Phys.Rev.Lett. 94, 152501 (2005)

J.Barea, R.Bijker, A.Frank

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
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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
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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
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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
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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
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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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