NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = J.E.Garcia-Ramos Found 56 matches. 2023GA24 Phys.Rev. C 108, L031305 (2023) N.Gavrielov, J.E.Garcia-Ramos, P.Van Isacker, A.Leviatan Persistent vibrational structure in 110-116Cd
doi: 10.1103/PhysRevC.108.L031305
2023MA43 Phys.Rev. C 108, 034316 (2023) E.Maya-Barbecho, S.Baid, J.M.Arias, J.E.Garcia-Ramos At the borderline of shape coexistence: Mo and Ru
doi: 10.1103/PhysRevC.108.034316
2022MA18 Phys.Rev. C 105, 034341 (2022) E.Maya-Barbecho, J.E.Garcia-Ramos Shape coexistence in Sr isotopes NUCLEAR STRUCTURE 92,94,96,98,100,102Sr; calculated levels, J, π, energies of the lowest unperturbed regular and intruder 0+ states, B(E2), S(2n), charge mean-square radii, isotope shifts, matrix coherent-state potential energy surfaces in (β, γ) plane, quadrupole deformation parameteres for first three 0 states, coexistence of a prolate and an oblate shape. Interacting boson model calculations with configuration mixing (IBM-CM). Comparison with experimental data.
doi: 10.1103/PhysRevC.105.034341
2022SA42 Phys.Rev. C 106, 064322 (2022) A.Saiz, J.-E.Garcia-Ramos, J.M.Arias, L.Lamata, P.Perez-Fernandez Digital quantum simulation of an extended Agassi model: Using machine learning to disentangle its phase-diagram
doi: 10.1103/PhysRevC.106.064322
2021NO02 Phys.Rev. C 103, 044311 (2021) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo, J.E.Garcia-Ramos Quadrupole-octupole coupling and the onset of octupole deformation in actinides NUCLEAR STRUCTURE 224,226,228,230,232,234Pu, 228,230,232,234,236,238Cf; calculated self-consistent mean-field potential energy surfaces (SCMF-PESs) and sdf-IBM PESs in (β2, β3) plane. 218,220,222,224,226,228,230,232,234,236,238Ra, 220,222,224,226,228,230,232,234,236,238,240Th, 222,224,226,228,230,232,234,236,238,240,242U, 224,226,228,230,232,234,236,238,240,242,244Pu, 226,228,230,232,234,236,238,240,242,244,246Cm, 228,230,232,234,236,238,240,242,244,246,248Cf; calculated β2 and β3 corresponding to the ground-state minimum, deformation energies with respect to spherical configuration, octupole deformation energies, low-energy levels, J, π, B(E1), B(E2), effective quadrupole and octupole deformation parameters. 240Pu; calculated levels, J, π, bands. Hartree-Fock-Bogoliubov approximation, based on the Gogny-D1M energy density functional and corresponding mapped sdf-IBM. Comparison with experimental data taken from databases at Brookhaven National Laboratory.
doi: 10.1103/PhysRevC.103.044311
2021NO11 Phys.Rev. C 104, 044324 (2021) K.Nomura, R.Rodriguez-Guzman, L.M.Robledo, J.E.Garcia-Ramos, N.C.Hernandez Evolution of octupole deformation and collectivity in neutron-rich lanthanides NUCLEAR STRUCTURE 140,142,144,146,148Xe, 142,144,146,148,150Ba, 144,146,148,150,152Ce, 146,148,150,152,154Nd; calculated potential energy surfaces in (β2, β3) planes using self-consistent mean-field (SCMF) and interacting boson model (IBM), low-lying levels of positive- and negative-parity yrast states, strength parameters, level-energy and B(E2) ratios, quadrupole and octupole moments. 144,146Ba, 148,150Nd; calculated levels, J, p, bands, B(E1), B(E2), B(E3) using interacting boson model (IBM). Self-consistent mean-field (SCMF), and interacting boson model (IBM) approaches with Hartree-Fock-Bogoliubov (HFB) approximation and constrains on axially symmetric quadrupole and octupole operators using the Gogny-D1M interaction. Comparison with experimental data.
doi: 10.1103/PhysRevC.104.044324
2020GA31 Phys.Rev. C 102, 054333 (2020) Subtle connection between shape coexistence and quantum phase transition: The Zr case NUCLEAR STRUCTURE 94,96,98,100,102,104,106,108,110Zr; calculated E(first 4+)/E(first 2+), S(2n), radii square with reference to 90Zr, energies of the unperturbed regular and intruder IBM bandheads with reference to ground-state energies, β2 corresponding to the unperturbed regular and intruder configurations, matrix coherent-state potential energy surface along the axial axis, matrix coherent-state potential energy surfaces in (β, γ) plane, U(5) decomposition of the yrast band and other states in regular and the intruder configurations, number of 0+ and other states below 4 MeV excitation, shape coexistence or with a quantum phase transition. 100,102Zr, 152Sm; calculated B(E2) and compared to values in X(5) limit. 94Zr; calculated ρ2(E0) for first excited 0+ state to ground state. Interacting boson model calculations with configuration mixing (IBM-CM). Comparison with experimental data. 90,92,94,96,98,100,102,104,106,108,110Zr; compiled experimental data for levels, J, π, 0+ states, two-nucleon and α transfer strengths to the first excited 0+ states.
doi: 10.1103/PhysRevC.102.054333
2020GA32 Chin.Phys.C 44, 124101 (2020) J.E.Garcia-Ramos, J.M.Arias, A.Vitturi Two-neutron transfer reactions as a tool to study the interplay between shape coexistence and quantum phase transitions NUCLEAR STRUCTURE Hg, Pt, Zr, Sm; analyzed available data; calculated two-neutron transfer intensities using the Interacting Boson Model (IBM), including its version with configuration mixing (IBM-CM).
doi: 10.1088/1674-1137/abb4ca
2020NO13 Phys.Rev. C 102, 064326 (2020) K.Nomura, R.Rodriguez-Guzman, Y.M.Humadi, L.M.Robledo, J.E.Garcia-Ramos Octupole correlations in light actinides from the interacting boson model based on the Gogny energy density functional NUCLEAR STRUCTURE 218,220,222,224,226,228,230,232,234,236,238Ra, 220,222,224,226,228,230,232,234,236,238,240Th; calculated potential energy surfaces in (β2, β3) plane using self-consistent mean-field (SCMF), and interacting boson model (IBM), energies of yrast positive-parity and negative-parity states, and relative energy splitting between positive- and negative-parity yrast bands, B(E1), B(E2), B(E3), transition quadrupole and octupole moments. Hartree-Fock-Bogoliubov approximation, based on Gogny-D1M energy density functional, and sdf interacting boson model (IBM) Hamiltonian for quadrupole-octupole coupling and collective excitations in even-even actinides. Comparison with experimental data.
doi: 10.1103/PhysRevC.102.064326
2019GA30 Phys.Rev. C 100, 044315 (2019) Quest of shape coexistence in Zr isotopes NUCLEAR STRUCTURE 94,96,98,100,102,104,106,108,110Zr; calculated positive-parity levels, J, B(E2), mean-square charge radii, ρ2(E0) for excited 0+ levels, S(2n), absolute energy of the lowest unperturbed regular and intruder first 0+ levels, energies of the two lowest lying regular levels and the lowest-lying intruder levels for J=0+, 2+, 3+, 4+, 5+, 6+ and 8+, B(E2) for levels in yrast bands and non-yrast intraband transitions, mean-field energy surfaces for 98,100,102Zr, intrinsic quadrupole moment, β and γ deformation parameters for first three 0+ states. Interacting boson model with configuration mixing (IBM-CM). Comparison with experimental data. Discussed shape coexistence, and other models such as large-scale shell-model side (LSSM), Monte-Carlo shell model (MCSM), and various mean field methods. 90,92,94,96,98,100,102,104,106,108,110Zr; systematics of experimental positive-parity levels, J, B(E2), spherical and deformed shapes up to 3 MeV excitation. Z=38-42, N=52-68; systematics of experimental S(2n) and difference in charge radii <r2> relative to those of N=50 nuclei.
doi: 10.1103/PhysRevC.100.044315
2019WR01 Eur.Phys.J. A 55, 130 (2019) K.Wrzosek-Lipska, K.Rezynkina, N.Bree, M.Zielinska, L.P.Gaffney, A.Petts, A.Andreyev, B.Bastin, M.Bender, A.Blazhev, B.Bruyneel, P.A.Butler, M.P.Carpenter, J.Cederkall, E.Clement, T.E.Cocolios, A.N.Deacon, J.Diriken, A.Ekstrom, C.Fitzpatrick, L.M.Fraile, Ch.Fransen, S.J.Freeman, J.E.Garcia-Ramos, K.Geibel, R.Gernhauser, T.Grahn, M.Guttormsen, B.Hadinia, K.Hadynska-Klek, M.Hass, P.-H.Heenen, R.-D.Herzberg, H.Hess, K.Heyde, M.Huyse, O.Ivanov, D.G.Jenkins, R.Julin, N.Kesteloot, Th.Kroll, R.Krucken, A.C.Larsen, R.Lutter, P.Marley, P.J.Napiorkowski, R.Orlandi, R.D.Page, J.Pakarinen, N.Patronis, P.J.Peura, E.Piselli, L.Prochniak, P.Rahkila, E.Rapisarda, P.Reiter, A.P.Robinson, M.Scheck, S.Siem, K.Singh Chakkal, J.F.Smith, J.Srebrny, I.Stefanescu, G.M.Tveten, P.Van Duppen, J.Van de Walle, D.Voulot, N.Warr, A.Wiens, J.L.Wood Electromagnetic properties of low-lying states in neutron-deficient Hg isotopes: Coulomb excitation of 182Hg, 184Hg, 186Hg and 188Hg NUCLEAR REACTIONS 112Cd(182Hg, 182Hg'), E=519 MeV; 120Sn, 107Ag, 112Cd(184Hg, 184Hg'), E=524 MeV; 120Sn, 107Ag, 114Cd(186Hg, 186Hg'), E=530 MeV; 120Sn, 107Ag, 114Cd(188Hg, 188Hg'), E=536 MeV; measured reaction products, Eγ, Iγ, X-rays. 182,184,186,188Hg; deduced γ-ray energies, J, π, transition E2 and M1 reduced matrix elements, branching ratios, B(E2). Comparison with theoretical calculations, GOSIA analysis. The Miniball set-up, REX postaccelerator.
doi: 10.1140/epja/i2019-12815-2
2018GA13 Phys.Rev. C 97, 054303 (2018) J.E.Garcia-Ramos, J.Dukelsky, P.Perez-Fernandez, J.M.Arias Phase diagram of an extended Agassi model
doi: 10.1103/PhysRevC.97.054303
2018LE12 Phys.Rev. C 98, 031302 (2018) A.Leviatan, N.Gavrielov, J.E.Garcia-Ramos, P.Van Isacker Quadrupole phonons in the cadmium isotopes NUCLEAR STRUCTURE 110Cd; calculated levels, J, π, B(E2) using U(5) partial dynamical symmetries U(5)-DS and U(5)-PDS-CM in the collective and interactive boson models. Comparison with experimental values.
doi: 10.1103/PhysRevC.98.031302
2017GA07 Phys.Rev. C 95, 054326 (2017) J.E.Garcia-Ramos, P.Perez-Fernandez, J.M.Arias Excited-state quantum phase transitions in a two-fluid Lipkin model
doi: 10.1103/PhysRevC.95.054326
2016GA09 Phys.Rev. C 93, 034336 (2016) J.E.Garcia-Ramos, P.Perez-Fernandez, J.M.Arias, E.Freire Phase diagram of the two-fluid Lipkin model: A "butterfly" catastrophe
doi: 10.1103/PhysRevC.93.034336
2015GA29 Phys.Rev. C 92, 034309 (2015) Nuclear shape coexistence in Po isotopes: An interacting boson model study NUCLEAR STRUCTURE 190,192,194,196,198,200,202,204,206,208,210Po; calculated levels, J, π, IBM-CM Hamiltonians, B(E2)s, electric quadrupole moments, nuclear radii and isotopic shifts, quadrupole shape invariants, wave functions, and deformations. Interacting boson model with configuration mixing (IBM-CM), by fixing the parameters of the Hamiltonians by a least-squares fit to experimental level energies and absolute B(E2) values. Comparison with experimental data.
doi: 10.1103/PhysRevC.92.034309
2015KE06 Phys.Rev. C 92, 054301 (2015) N.Kesteloot, B.Bastin, L.P.Gaffney, K.Wrzosek-Lipska, K.Auranen, C.Bauer, M.Bender, V.Bildstein, A.Blazhev, S.Bonig, N.Bree, E.Clement, T.E.Cocolios, A.Damyanova, I.Darby, H.De Witte, D.DiJulio, J.Diriken, C.Fransen, J.E.Garcia-Ramos, R.Gernhauser, T.Grahn, P.-H.Heenen, H.Hess, K.Heyde, M.Huyse, J.Iwanicki, U.Jakobsson, J.Konki, T.Kroll, B.Laurent, N.Lecesne, R.Lutter, J.Pakarinen, P.Peura, E.Piselli, L.Prochniak, P.Rahkila, E.Rapisarda, P.Reiter, M.Scheck, M.Seidlitz, M.Sferrazza, B.Siebeck, M.Sjodin, H.Tornqvist, E.Traykov, J.Van De Walle, P.Van Duppen, M.Vermeulen, D.Voulot, N.Warr, F.Wenander, K.Wimmer, M.Zielinska Deformation and mixing of coexisting shapes in neutron-deficient polonium isotopes NUCLEAR REACTIONS 104Pd(196Po, 196Po'), (200Po, 200Po'), (202Po, 202Po'), 94Mo(198Po, 198Po'), (202Po, 202Po'), E=2.85 MeV/nucleon, [secondary Po beams from U(p, X), E=1.4 GeV at REX-ISOLDE-CERN facility]; measured Eγ, Iγ, γγ-coin, (Po x ray)γ-coin, (scattered particle)γ-coin, (particle)γ(t), angular distribution of scattered particles, Coulomb excitation yields for excited states in beams and targets during laser-on and laser-off using double-sided silicon-strip detectors (DSSSDs) for particles and Miniball array for γ rays. 196,198,200,202Po; deduced levels, J, π, E2 matrix elements, B(E2), deformation parameters, transition quadrupole moments. 94Mo, 104Pd; deduced levels, Coulomb excitation yields. GOSIA analysis of Coulomb excitation yields. Comparison with predictions of beyond-mean-field (BMF) model, interacting boson model (IBM), general Bohr Hamiltonian (GBH) model, phenomenological two-level mixing model, and with previous measurement of mean-square charge radii.
doi: 10.1103/PhysRevC.92.054301
2014BR05 Phys.Rev.Lett. 112, 162701 (2014) N.Bree, K.Wrzosek-Lipska, A.Petts, A.Andreyev, B.Bastin, M.Bender, A.Blazhev, B.Bruyneel, P.A.Butler, J.Butterworth, M.P.Carpenter, J.Cederkall, E.Clement, T.E.Cocolios, A.Deacon, J.Diriken, A.Ekstrom, C.Fitzpatrick, L.M.Fraile, Ch.Fransen, S.J.Freeman, L.P.Gaffney, J.E.Garcia-Ramos, K.Geibel, R.Gernhauser, T.Grahn, M.Guttormsen, B.Hadinia, K.Hadynska-Klek, M.Hass, P.-H.Heenen, R.-D.Herzberg, H.Hess, K.Heyde, M.Huyse, O.Ivanov, D.G.Jenkins, R.Julin, N.Kesteloot, Th.Kroll, R.Krucken, A.C.Larsen, R.Lutter, P.Marley, P.J.Napiorkowski, R.Orlandi, R.D.Page, J.Pakarinen, N.Patronis, P.J.Peura, E.Piselli, P.Rahkila, E.Rapisarda, P.Reiter, A.P.Robinson, M.Scheck, S.Siem, K.Singh Chakkal, J.F.Smith, J.Srebrny, I.Stefanescu, G.M.Tveten, P.Van Duppen, J.Van de Walle, D.Voulot, N.Warr, F.Wenander, A.Wiens, J.L.Wood, M.Zielinska Shape Coexistence in the Neutron-Deficient Even-Even 182-188Hg Isotopes Studied via Coulomb Excitation NUCLEAR REACTIONS 120Sn, 107Ag, 112,114Cd(182Hg, 182Hg'), (184Hg, 184Hg'), (186Hg, 186Hg'), (188Hg, 188Hg'), E=2.85 MeV/nucleon; measured reaction products, Eγ, Iγ. 182,184,186,188Hg; deduced energy levels, J, π, nuclear matrix elements, B(E2). Comparison with IBM calculations, experimental data.
doi: 10.1103/PhysRevLett.112.162701
2014GA02 Phys.Rev. C 89, 014306 (2014) Nuclear shape coexistence: A study of the even-even Hg isotopes using the interacting boson model with configuration mixing NUCLEAR STRUCTURE 172,174,176,178,180,182,184,186,188,190,192,194,196,198,200Hg; calculated levels, J, π, absolute and relative B(E2), quadrupole moments, quadrupole shape invariants, wave functions, isotopic shifts, rms charge radii, mean-field energy surfaces, α-decay hindrance factor. Interacting boson model with configuration mixing. Comparisons with experimental data
doi: 10.1103/PhysRevC.89.014306
2014GA08 Phys.Rev. C 89, 034313 (2014) J.E.Garcia-Ramos, K.Heyde, L.M.Robledo, R.Rodriguez-Guzman Shape evolution and shape coexistence in Pt isotopes: Comparing interacting boson model configuration mixing and Gogny mean-field energy surfaces NUCLEAR STRUCTURE 172,174,176,178,180,182,184,186,188,190,192Pt; calculated total energy curves as function of β2, energy surface contours in (β, γ) plane, energies of unperturbed regular and intruder IBM bandheads. Interacting boson model with configuration mixing, and Hartree-Fock-Bogolyubov calculations with Gogny-D1S interaction. Detailed comparison of the two methods.
doi: 10.1103/PhysRevC.89.034313
2013LE04 Phys.Rev. C 87, 021302 (2013) A.Leviatan, J.E.Garcia-Ramos, P.Van Isacker Partial dynamical symmetry as a selection criterion for many-body interactions NUCLEAR STRUCTURE 156Gd; calculated levels, J, π, bands, B(E2), odd-even staggering. IBM Hamiltonians with SU(3) partial dynamical symmetry (PDS). Triaxial features. Comparison with experimental data.
doi: 10.1103/PhysRevC.87.021302
2012MU05 Phys.Rev. C 85, 044325 (2012) I.Mukha, L.Grigorenko, L.Acosta, M.A.G.Alvarez, E.Casarejos, A.Chatillon, D.Cortina-Gil, J.M.Espino, A.Fomichev, J.E.Garcia-Ramos, H.Geissel, J.Gomez-Camacho, J.Hofmann, O.Kiselev, A.Korsheninnikov, N.Kurz, Yu.A.Litvinov, I.Martel, C.Nociforo, W.Ott, M.Pfutzner, C.Rodriguez-Tajes, E.Roeckl, C.Scheidenberger, M.Stanoiu, K.Summerer, H.Weick, P.J.Woods New states in 18Na and 19Mg observed in the two-proton decay of 19Mg NUCLEAR REACTIONS 9Be(20Mg, 2p17Ne), [20Mg secondary beam from 9Be(24Mg, X), E=450 MeV/nucleon primary reaction], E not given; measured particle spectra, (proton)(proton)(17Ne)(θ), intensity distribution contours using microstrip detectors. 19Mg, 18Na; deduced decay energies, levels, J, π, proton decay widths. 19Mg; deduced simultaneous and sequential 2p decays from ground states and excited states, dominance of sequential 2p decay from excited states. Comparison with shell model calculations. RADIOACTIVITY 18Na(p), 19Mg(2p); measured proton branches; deduced one proton and two-proton decay energies. Dominance of direct 2p decay from 19Mg ground state.
doi: 10.1103/PhysRevC.85.044325
2011FO09 Phys.Rev. C 84, 014326 (2011) L.Fortunato, C.E.Alonso, J.M.Arias, J.E.Garcia-Ramos, A.Vitturi Phase diagram for a cubic- Q interacting boson model Hamiltonian: Signs of triaxiality
doi: 10.1103/PhysRevC.84.014326
2011GA35 Phys.Rev. C 84, 014331 (2011) J.E.Garcia-Ramos, V.Hellemans, K.Heyde Platinum nuclei: Concealed configuration mixing and shape coexistence NUCLEAR STRUCTURE 172,174,176,178,180,182,184,186,188,190,192,194Pt; calculated levels, J, π, unperturbed regular states, intruder states, g factors of first 2+ states, isotope shifts, rms charge radii. 174,180,186,192Pt; calculated unperturbed regular levels, intruder (2p-2h) levels, and levels with fully mixed configuration, B(E2), B(E2) ratios. 176,178,180Pt; calculated α-decay hindrance factors from the decay of 180,182,184Hg nuclei. Interacting boson model with configuration mixing (IBM-CM) calculations. Comparison with experimental data. 180,182,184,186,188,190,192,194,196,198,200,202,204,206,208Pb, 168,170,172,174,176,178,180,182,184,186,188,190,192,194,196,198,200,202,204Pt, 174,176,178,180,182,184,186,188,190,192,194,196,198,200,202,204,206Hg, 176Yb, 178Hf, 180W, 182Os; analyzed systematics of energy spectra of yrast and non-yrast levels.
doi: 10.1103/PhysRevC.84.014331
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
2010MU12 Phys.Rev. C 82, 054315 (2010) I.Mukha, K.Summerer, L.Acosta, M.A.G.Alvarez, E.Casarejos, A.Chatillon, D.Cortina-Gil, I.A.Egorova, J.M.Espino, A.Fomichev, J.E.Garcia-Ramos, H.Geissel, J.Gomez-Camacho, L.Grigorenko, J.Hofmann, O.Kiselev, A.Korsheninnikov, N.Kurz, Yu.A.Litvinov, E.Litvinova, I.Martel, C.Nociforo, W.Ott, M.Pfutzner, C.Rodriguez-Tajes, E.Roeckl, M.Stanoiu, N.K.Timofeyuk, H.Weick, P.J.Woods Spectroscopy of proton-unbound nuclei by tracking their decay products in-flight: One- and two- proton decays of 15F, 16Ne, and 19Na NUCLEAR REACTIONS 9Be(17Ne, X)16Ne, E=410 MeV/nucleon; 9Be(20Mg, X), E=450 MeV/nucleon; measured Ep, Ip, p(heavy-ion)-coin, p(heavy-ion)(θ), pp(heavy-ion fragment)-coin, pp(heavy-ion fragment)(θ), Monte-Carlo simulations. 14O, 15F, 16Ne; deduced levels, J, resonances, proton-decay modes, widths. 17Ne and 20Mg beams from fragmentation of 24Mg beam at 591 MeV/nucleon. RADIOACTIVITY 15F, 19Na(p); 16Ne(2p); measured Ep, Ip, p(14O)-coin, p(14O)(θ), p(18Ne)-coin, p(18Ne)(θ), pp(14O)(θ), pp(14O)-coin; deduced decay energies and widths. Monte-Carlo simulations of angular correlation spectra.
doi: 10.1103/PhysRevC.82.054315
2010RO06 Phys.Rev. C 81, 024310 (2010) R.Rodriguez-Guzman, P.Sarriguren, L.M.Robledo, J.E.Garcia-Ramos Mean field study of structural changes in Pt isotopes with the Gogny interaction NUCLEAR STRUCTURE 166,168,170,172,174,176,178,180,182,184,186,188,190,192,194,196,198,200,202,204Pt; calculated potential energy curves as function of axial quadrupole moment, Q-γ triaxial planes, mean field excitation energies, quadrupole moment, γ deformation parameter, neutron and proton pairing energies, Thouless-Valatin moments of inertia as function of atomic mass, and spherical occupancies in the proton and neutron ground-state wave functions using the self-consistent Hartree-Fock-Bogoliubov approximation with DIS, DIN, and DIM Gogny interactions. 180,188,202Pt; calculated neutron and proton single particle energies as functions of axial quadrupole moment and γ deformation parameter.
doi: 10.1103/PhysRevC.81.024310
2009GA15 Nucl.Phys. A825, 39 (2009) The Pt isotopes: Comparing the Interacting Boson Model with configuration mixing and the extended consistent-Q formalism NUCLEAR STRUCTURE 172,174,176,178,180,182,184,186,188,190,192,194Pt; calculated level energies, B(E2), quadrupole moments and effect of intruder states using interacting boson model. Comparison with previous results and data.
doi: 10.1016/j.nuclphysa.2009.04.003
2009MU09 Phys.Rev. C 79, 061301 (2009) I.Mukha, N.K.Timofeyuk, K.Summerer, L.Acosta, M.A.G.Alvarez, E.Casarejos, A.Chatillon, D.Cortina-Gil, J.M.Espino, A.Fomichev, J.E.Garcia-Ramos, H.Geissel, J.Gomez-Camacho, L.Grigorenko, J.Hofmann, O.Kiselev, A.Korsheninnikov, N.Kurz, Yu.Litvinov, I.Martel, C.Nociforo, W.Ott, M.Pfutzner, C.Rodriguez-Tajes, E.Roeckl, M.Stanoiu, H.Weick, P.J.Woods Observation of narrow states in nuclei beyond the proton drip line: 15F and 16Ne NUCLEAR REACTIONS 9Be(17Ne, X)16Ne/15F, E=450 MeV/nucleon; measured particle spectra, (particle)(proton)(θ), (particle)(proton)(proton)(θ), and widths. 15F, 16Ne; deduced levels, J, π.
doi: 10.1103/PhysRevC.79.061301
2008GA14 Phys.Rev. C 77, 054307 (2008) Relation between E(5) models and the interacting boson model
doi: 10.1103/PhysRevC.77.054307
2008MU13 Phys.Rev. C 77, 061303 (2008) I.Mukha, L.Grigorenko, K.Summerer, L.Acosta, M.A.G.Alvarez, E.Casarejos, A.Chatillon, D.Cortina-Gil, J.M.Espino, A.Fomichev, J.E.Garcia-Ramos, H.Geissel, J.Gomez-Camacho, J.Hofmann, O.Kiselev, A.Korsheninnikov, N.Kurz, Yu.Litvinov, I.Martel, C.Nociforo, W.Ott, M.Pfutzner, C.Rodriguez-Tajes, E.Roeckl, M.Stanoiu, H.Weick, P.J.Woods Proton-proton correlations observed in two-proton decay of 19Mg and 16Ne RADIOACTIVITY 16Ne, 19Mg(2p); measured decay product trajectories, angular correlations, angular distributions, three-body correlations. 15F, 16Ne, 18Na, 19Mg; deduced levels, J, π.
doi: 10.1103/PhysRevC.77.061303
2008SA09 Nucl.Phys. A803, 30 (2008) A.M.Sanchez-Benitez, D.Escrig, M.A.G.Alvarez, M.V.Andres, C.Angulo, M.J.G.Borge, J.Cabrera, S.Cherubini, P.Demaret, J.M.Espino, P.Figuera, M.Freer, J.E.Garcia-Ramos, J.Gomez-Camacho, M.Gulino, O.R.Kakuee, I.Martel, C.Metelko, A.M.Moro, F.Perez-Bernal, J.Rahighi, K.Rusek, D.Smirnov, O.Tengblad, P.Van Duppen, V.Ziman Study of the elastic scattering of 6He on 208Pb at energies around the Coulomb barrier NUCLEAR REACTIONS 208Pb(6He, 6He), E=14, 16, 18, 22 MeV; measured σ(θ). Comparison with optical model calculations, including Coulomb dipole polarizability and dispersion relations.
doi: 10.1016/j.nuclphysa.2008.01.030
2007AR03 Phys.Rev. C 75, 014301 (2007) J.M.Arias, J.Dukelsky, J.E.Garcia-Ramos, J.Vidal Two-level interacting boson models beyond the mean field
doi: 10.1103/PhysRevC.75.014301
2007ES06 Nucl.Phys. A792, 2 (2007) D.Escrig, A.M.Sanchez-Benitez, A.M.Moro, M.A.G.Alvarez, M.V.Andres, C.Angulo, M.J.G.Borge, J.Cabrera, S.Cherubini, P.Demaret, J.M.Espino, P.Figuera, M.Freer, J.E.Garcia-Ramos, J.Gomez-Camacho, M.Gulino, O.R.Kakuee, I.Martel, C.Metelko, F.Perez-Bernal, J.Rahighi, K.Rusek, D.Smirnov, O.Tengblad, V.Ziman α-particle production in the scattering of 6He by 208Pb at energies around the Coulomb barrier NUCLEAR REACTIONS 208Pb(6He, α), E=14, 16, 18, 22 MeV; measured Eα, Iα, σ(E, θ); deduced reaction mechanism features using DWBA analysis.
doi: 10.1016/j.nuclphysa.2007.05.012
2007MU15 Phys.Rev.Lett. 99, 182501 (2007) I.Mukha, K.Summerer, L.Acosta, M.A.G.Alvarez, E.Casarejos, A.Chatillon, D.Cortina-Gil, J.Espino, A.Fomichev, J.E.Garcia-Ramos, H.Geissel, J.Gomez-Camacho, L.Grigorenko, J.Hoffmann, O.Kiselev, A.Korsheninnikov, N.Kurz, Yu.Litvinov, I.Martel, C.Nociforo, W.Ott, M.Pfutzner, C.Rodriguez-Tajes, E.Roeckl, M.Stanoiu, H.Weick, P.J.Woods Observation of Two-Proton Radioactivity of 19Mg by Tracking the Decay Products RADIOACTIVITY 19Mg(2p) [from 9Be(20Mg, 19Mg), E=450 meV/nucleon]; measured Ep, Ip, (17Ne)p-coinc, angular correlations. 19Mg deduced T1/2, 2p-decay Q-value.
doi: 10.1103/PhysRevLett.99.182501
2006VI02 Phys.Rev. C 73, 054305 (2006) J.Vidal, J.M.Arias, J.Dukelsky, J.E.Garcia-Ramos Scalar two-level boson model to study the interacting boson model phase diagram in the Casten triangle
doi: 10.1103/PhysRevC.73.054305
2005DU17 Phys.Rev. C 72, 011301 (2005) S.Dusuel, J.Vidal, J.M.Arias, J.Dukelsky, J.E.Garcia-Ramos Finite-size scaling exponents in the interacting boson model
doi: 10.1103/PhysRevC.72.011301
2005DU27 Phys.Rev. C 72, 064332 (2005) S.Dusuel, J.Vidal, J.M.Arias, J.Dukelsky, J.E.Garcia-Ramos Continuous unitary transformations in two-level boson systems
doi: 10.1103/PhysRevC.72.064332
2005GA43 Phys.Rev. C 72, 037301 (2005) J.E.Garcia-Ramos, J.Dukelsky, J.M.Arias β4 potential at the U(5)-O(6) critical point of the interacting boson model
doi: 10.1103/PhysRevC.72.037301
2005GA58 Eur.Phys.J. A 26, 221 (2005) J.E.Garcia-Ramos, K.Heyde, R.Fossion, V.Hellemans, S.De Baerdemacker A theoretical description of energy spectra and two-neutron separation energies for neutron-rich zirconium isotopes NUCLEAR STRUCTURE 94,96,98,100,102,104Zr; calculated level energies, B(E2), two-neutron separation energies. Interacting boson model.
doi: 10.1140/epja/i2005-10176-1
2005SA52 J.Phys.(London) G31, S1953 (2005) A.M.Sanchez-Benitez, D.Escrig, M.A.G.Alvarez, M.V.Andres, C.Angulo, M.J.G.Borge, J.Cabrera, S.Cherubini, J.M.Espino, P.Figuera, M.Freer, J.E.Garcia-Ramos, J.Gomez-Camacho, M.Gulino, O.R.Kakuee, I.Martel, C.Metelco, A.M.Moro, J.Rahighi, K.Rusek, D.Smirnov, O.Tengblad, P.Van Duppen, V.Ziman Scattering of 6He at energies around the Coulomb barrier NUCLEAR REACTIONS 208Pb(6He, 6He), (6He, α), E=14, 16, 17, 18, 22 MeV; measured σ(θ); deduced reaction mechanism features.
doi: 10.1088/0954-3899/31/10/109
2004AR27 Phys.Rev.Lett. 93, 212501 (2004) J.M.Arias, J.E.Garcia-Ramos, J.Dukelsky Phase Diagram of the Proton-Neutron Interaction Boson Model
doi: 10.1103/PhysRevLett.93.212501
2003AR23 Phys.Rev.Lett. 91, 162502 (2003) J.M.Arias, J.Dukelsky, J.E.Garcia-Ramos Quantum Phase Transitions in the Interacting Boson Model: Integrability, Level Repulsion, and Level Crossing
doi: 10.1103/PhysRevLett.91.162502
2003AR24 Phys.Rev. C 68, 041302 (2003) J.M.Arias, C.E.Alonso, A.Vitturi, J.E.Garcia-Ramos, J.Dukelsky, A.Frank U(5)-O(6) transition in the interacting boson model and the E(5) critical point symmetry
doi: 10.1103/PhysRevC.68.041302
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
2002FO02 Nucl.Phys. A697, 703 (2002) R.Fossion, C.De Coster, J.E.Garcia-Ramos, T.Werner, K.Heyde Nuclear Binding Energies: Global collective structure and local shell-model correlations NUCLEAR STRUCTURE Z=50-82; analyzed binding energies, two-neutron separation energies; deduced possible shell, deformation, or configuration-mixing effects. Liquid drop model, shell model, interacting boson model.
doi: 10.1016/S0375-9474(01)01270-2
2002FO04 Phys.Rev. C65, 044309 (2002) R.Fossion, C.De Coster, J.E.Garcia-Ramos, K.Heyde Proton-Neutron Quadrupole Interactions: An effective contribution to the pairing field
doi: 10.1103/PhysRevC.65.044309
2002HE07 Eur.Phys.J. A 13, 401 (2002) K.Heyde, R.Fossion, J.E.Garcia-Ramos, C.De Coster, R.F.Casten Differences between Pairing and Zero-Range Effective Interactions for Nuclear Binding Energies
doi: 10.1007/s10050-002-8769-2
2001GA33 Nucl.Phys. A688, 735 (2001) J.E.Garcia-Ramos, C.De Coster, R.Fossion, K.Heyde Two-Neutron Separation Energies, Binding Energies and Phase Transitions in the Interacting Boson Model NUCLEAR STRUCTURE Sm, Gd, Ru, Pd, Os, Pt; calculated binding energies. 150,152,154,156,158,160,162Gd, 100,102,104,106,108,110,112Pd, 184,186,188,190,192,194,196Pt; calculated level energies, two-neutron separation energies. Interacting boson model, comparisons with data.
doi: 10.1016/S0375-9474(00)00592-3
2001SC41 Nucl.Phys. A693, 533 (2001) S.Schwarz, F.Ames, G.Audi, D.Beck, G.Bollen, C.De Coster, J.Dilling, O.Engels, R.Fossion, J.-E.Garcia Ramos, S.Henry, F.Herfurth, K.Heyde, A.Kellerbauer, H.-J.Kluge, A.Kohl, E.Lamour, D.Lunney, I.Martel, R.B.Moore, M.Oinonen, H.Raimbault-Hartmann, C.Scheidenberger, G.Sikler, J.Szerypo, C.Weber, and the ISOLDE Collaboration Accurate Masses of Neutron-Deficient Nuclides Close to Z = 82 ATOMIC MASSES 179,180,181,182,183,184,185,185m,186,187,187m,188,189m,190,191,191m,192,193,193m,194,195,196,197,197m,200Hg, 196,198,204Pb, 197Bi, 198Po, 203At; measured masses. Penning trap.
doi: 10.1016/S0375-9474(01)00881-8
2000GA09 Phys.Rev. C61, 034305 (2000) J.E.Garcia-Ramos, J.M.Arias, J.Dukelsky, P.Van Isacker Intrinsic State for an Extended Version of the Interacting Boson Model
doi: 10.1103/PhysRevC.61.034305
2000GA13 Phys.Rev. C61, 047305 (2000) J.E.Garcia-Ramos, C.E.Alonso, J.M.Arias, P.Van Isacker Anharmonic Double-γ Vibrations in Nuclei and Their Description in the Interacting Boson Model NUCLEAR STRUCTURE 166Er; calculated levels, J, π, B(E2), one-, two-phonon vibrational bands features. Interacting boson model.
doi: 10.1103/PhysRevC.61.047305
2000GA53 Phys.Rev. C62, 064309 (2000) J.E.Garcia-Ramos, J.M.Arias, P.Van Isacker Anharmonic Double-Phonon Excitations in the Interacting Boson Model NUCLEAR STRUCTURE 164Dy, 166,168Er; calculated levels, J, π, B(E2), vibrational bands features; deduced mechanism for anharmonicity. Interacting boson model.
doi: 10.1103/PhysRevC.62.064309
1999GA30 Ann.Phys.(New York) 274, 45 (1999) J.E.Garcia-Ramos, P.Van Isacker The Interacting Boson Model with SU(3) Charge Symmetry and Its Application to Even-Even N ≈ Z Nuclei NUCLEAR STRUCTURE 44,46,48Ti, 48Cr; calculated levels, J, π, B(M1); deduced symmetry features. Isospin-invariant IBM-3 calculations.
doi: 10.1006/aphy.1999.5911
1998GA03 Phys.Rev. C57, R479 (1998) J.E.Garcia-Ramos, J.M.Arias, J.Dukelsky, E.Moya de Guerra, P.Van Isacker Hartree-Bose Mean-Field Approximation for the Interacting Boson Model (IBM-3)
doi: 10.1103/PhysRevC.57.R479
1998GA22 Nucl.Phys. A637, 529 (1998) J.E.Garcia-Ramos, C.E.Alonso, J.M.Arias, P.Van Isacker, A.Vitturi Intrinsic Structure of Two-Phonon States in the Interacting Boson Model
doi: 10.1016/S0375-9474(98)00243-7
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