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NSR database version of May 21, 2024.

Search: Author = P.Sarriguren

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2024SA08      Phys.Rev. C 109, 024312 (2024)

P.Sarriguren

Elastic electron scattering from deformed and oriented odd-A nuclei

doi: 10.1103/PhysRevC.109.024312
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2023SA01      Phys.Lett. B 837, 137664 (2023)

P.Sarriguren

Quadrupole deformation signatures in elastic electron scattering from oriented odd-A nuclei

NUCLEAR REACTIONS 23Na, 25Mg, 59Co(e-, e-), E not given; calculated elastic electron scattering from oriented odd-A axially deformed nuclei using the plane wave Born approximation (PWBA) that assumes one-photon exchanged and plane waves for the electrons; deduced proton distributions, form factors, nuclear shapes.

doi: 10.1016/j.physletb.2022.137664
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2023XU06      Phys.Rev.Lett. 131, 022501 (2023)

Z.Y.Xu, M.Madurga, R.Grzywacz, T.T.King, A.Algora, A.N.Andreyev, J.Benito, T.Berry, M.J.G.Borge, C.Costache, H.De Witte, A.Fijalkowska, L.M.Fraile, H.O.U.Fynbo, A.Gottardo, C.Halverson, L.J.Harkness-Brennan, J.Heideman, M.Huyse, A.Illana, L.Janiak, D.S.Judson, A.Korgul, T.Kurtukian-Nieto, I.Lazarus, R.Lica, R.Lozeva, N.Marginean, R.Marginean, C.Mazzocchi, C.Mihai, R.E.Mihai, A.I.Morales, R.D.Page, J.Pakarinen, M.Piersa-Silkowska, Z.Podolyak, P.Sarriguren, M.Singh, C.Sotty, M.Stepaniuk, O.Tengblad, A.Turturica, P.Van Duppen, V.Vedia, S.Vinals, N.Warr, R.Yokoyama, C.X.Yuan

133In: A Rosetta Stone for Decays of r-Process Nuclei

RADIOACTIVITY 133In(IT), (β-), (β-n); measured decay products, En, In, Eβ, Iβ, Eγ, Iγ; deduced excitation energy and decay strength, partial T1/2. Comparison with large-scale shell model (LSSM) calculations. The ISOLDE Decay Station (IDS), The Isotope Separator On-Line (ISOLDE) facility at CERN.

doi: 10.1103/PhysRevLett.131.022501
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2023XU08      Phys.Rev. C 108, 014314 (2023)

Z.Y.Xu, M.Madurga, R.Grzywacz, T.T.King, A.Algora, A.N.Andreyev, J.Benito, T.Berry, M.J.G.Borge, C.Costache, H.De Witte, A.Fijalkowska, L.M.Fraile, H.O.U.Fynbo, A.Gottardo, C.Halverson, L.J.Harkness-Brennan, J.Heideman, M.Huyse, A.Illana, L.Janiak, D.S.Judson, A.Korgul, T.Kurtukian-Nieto, I.Lazarus, R.Lica, R.Lozeva, N.Marginean, R.Marginean, C.Mazzocchi, C.Mihai, R.E.Mihai, A.I.Morales, R.D.Page, J.Pakarinen, M.Piersa-Silkowska, Zs.Podolyak, P.Sarriguren, M.Singh, Ch.Sotty, M.Stepaniuk, O.Tengblad, A.Turturica, P.Van Duppen, V.Vedia, S.Vinals, N.Warr, R.Yokoyama, C.X.Yuan

β-delayed neutron spectroscopy of 133In

RADIOACTIVITY 133,133mIn(β-)(β-n); decay products, neutron time-of-flight, En, In, Eβ, Iβ, Eγ, Iγ, βγ-coin, nβ-coin; deduced feeding intensities, neutron-emission probabilities, logft, β-decay strength distribution, Gamow-Teller transition. 133Sn; deduced levels, J, π, configurations. Comparison of 133Sn and 131Sn level schemes. The ISOLDE Decay Station (IDS) at The Isotope Separator On-Line (ISOLDE) facility at CERN.

doi: 10.1103/PhysRevC.108.014314
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2023ZH34      Phys.Rev. C 108, 014614 (2023)

J.T.Zhang, P.Ma, Y.Huang, X.L.Tu, P.Sarriguren, Z.P.Li, Y.Kuang, W.Horiuchi, T.Inakura, L.Xayavong, Y.Sun, K.Kaneko, X.Q.Liu, K.Yue, C.J.Shao, Q.Zeng, B.Mei, P.Egelhof, Yu.A.Litvinov, M.Wang, Y.H.Zhang, X.H.Zhou, Z.Y.Sun

Matter radius of 78Kr from proton elastic scattering at 153 MeV

NUCLEAR REACTIONS 1H(78Kr, p), E=152 MeV/nucleon; measured Ep, Ip; deduced σ(θ). 78Kr; deduced point-matter radius, neutron skin thickness. Glauber model analysis. Comparison of the obtained σ to FRESCO calculations with the phenomenological OMP parameters (KD03). Collision in Cooler Storage Ring of the Heavy Ion Research Facility in Lanzhou (HIRFL-CSR) with molecular hydrogen-gas target. MICRON double-sided Si-strip detector (DSSD) used to measure the recoil protons.

doi: 10.1103/PhysRevC.108.014614
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2022BR01      Phys.Rev. C 105, 014323 (2022)

J.A.Briz, M.J.G.Borge, B.Rubio, J.Agramunt, A.Algora, A.Y.Deo, M.E.Estevez Aguado, G.Farrelly, L.M.Fraile, W.Gelletly, A.Maira, E.Nacher, A.Perea, Zs.Podolyak, A.Poves, P.Sarriguren, O.Tengblad

Clarifying the structure of low-lying states in 72Br

RADIOACTIVITY 72Kr(EC), (β+)[from Nb(p, X), E=1.4 GeV at ISOLDE-CERN, followed by high-resolution mass separation]; measured Eγ, Iγ, x rays, conversion electrons, conversion coefficients using HPGe detector for γ rays and a miniorange electron spectrometer for electrons. 72Br; deduced levels, J, π, multipolarities, multipole mixing ratios, configurations, no E0 transitions observed. 72Br(EC)[from 72Kr EC decay]; 72As(EC)[present as contaminant]; measured Eγ, Iγ, conversion electrons. 72Se, 72Ge; deduced Eγ and E0 transitions. Comparison of level structure in 72Br with theoretical calculations using the mean-field HF+BCS approach with SLy4 Skyrme-type interaction and large-scale shell-model using jun45.lnps interaction, and with previous experimental results.

doi: 10.1103/PhysRevC.105.014323
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2022MO31      Phys.Rev. C 106, 034317 (2022)

O.Moreno, P.Sarriguren, A.Algora, L.M.Fraile, S.E.A.Orrigo

Bulk and decay properties of neutron-deficient odd-mass Hg isotopes near A=185

NUCLEAR STRUCTURE 182,184,186,188Hg; calculated energy-deformation curves as function of β, accumulated Gamow-Teller strength distributions for oblate and prolate shapes of the ground states. 183,185,187Hg; calculated levels, J, π, β, Nilsson configurations, magnetic dipole moments, and T1/2 for β+/ϵ decays, accumulated Gamow-Teller strength distributions for ground and excited states. 182,183,184,185,186,187,188Hg; calculated mean-square charge radii differences with respect to that of 198Hg. Self-consistent, axially deformed Hartree-Fock mean field with the Skyrme SLy4, Sk3, SGII functional and pairing within the BCS approximation. Comparison with available experimental data. Relevance to planned total absorption γ spectra (TAGS) at ISOLDE-CERN.

doi: 10.1103/PhysRevC.106.034317
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2022SA03      Phys.Rev. C 105, 014312 (2022)

P.Sarriguren

Competition between weak and α-decay modes in superheavy nuclei

RADIOACTIVITY 287,288,289,290,291,292,293,294,295,296,297,298,299,300,301,302120, 283,284,285,286,287,288,289,290,291,292,293,294,295,296,297,298Og, 279,280,281,282,283,284,285,286,287,288,289,290,291,292,293,294Lv, 275,276,277,278,279,280,281,282,283,284,285,286,287,288,289,290Fl, 271,272,273,274,275,276,277,278,279,280,281,282,283,284,285,286Cn, 267,268,269,270,271,272,273,274,275,276,277,278,279,280,281,282Ds, 263,264,265,266,267,268,269,270,271,272,273,274,275,276,277,278Hs, 259,260,261,262,263,264,265,266,267,268,269,270,271,272,273,274Sg, 255,256,257,258,259,260,261,262,263,264,265,266,267,268Rf, 251,252,253,254,255,256,257,258,259,260,261,262,263,264No, 247,248,249,250,251,252,253,254,255Fm, 243,244,245,246,247Cf, 239,240,241,242,243Cm, 235,236,237Pu, 285,287,289,291,293,295,297,299,301119, 281,283,285,287,289,291,293,295,297Ts, 277,279,281,283,285,287,289,291,293Mc, 273,275,277,279,281,283,285,287,289Nh, 269,271,273,275,277,279,281,283,285Rg, 265,267,269,271,273,275,277,279,281Mt, 261,263,265,267,269,271,273,275,277Bh, 257,259,261,263,265,267,269Db, 253,255,257,259,261,263Lr, 249,251,253,255,257,259Md, 245,247,249,251,253,255Es, 241,243,245,247Bk, 237,239,241Am, 233,235Np, 229,231Pa(α), (EC); calculated Q(α), Q(EC), T1/2 for α and EC decay modes. Microscopic approach based on deformed self-consistent Skyrme-Hartree-Fock calculations with pairing correlations. Comparison with available experimental data. 260Sg; calculated Gamow-Teller strength distribution using HF+BCS(SLy4) and pnQRPA with spin-isospin separable forces.

doi: 10.1103/PhysRevC.105.014312
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2022VI03      Phys.Lett. B 830, 137123 (2022)

A.Vitez-Sveiczer, A.Algora, A.I.Morales, B.Rubio, G.G.Kiss, P.Sarriguren, P.Van Isacker, G.de Angelis, F.Recchia, S.Nishimura, J.Agramunt, V.Guadilla, A.Montaner-Piza, S.E.A.Orrigo, A.Horvath, D.Napoli, S.Lenzi, A.Boso, V.H.Phong, J.Wu, P.-A.Soderstrom, T.Sumikama, H.Suzuki, H.Takeda, D.S.Ahn, H.Baba, P.Doornebal, N.Fukuda, N.Inabe, T.Isobe, T.Kubo, S.Kubono, H.Sakurai, Y.Shimizu, C.Sidong, B.Blank, P.Ascher, M.Gerbaux, T.Goigoux, J.Giovinazzo, S.Grevy, T.Kurtukian Nieto, C.Magron, W.Gelletly, Zs.Dombradi, Y.Fujita, M.Tanaka, P.Aguilera, F.Molina, J.Eberth, F.Diel, D.Lubos, C.Borcea, E.Ganioglu, D.Nishimura, H.Oikawa, Y.Takei, S.Yagi, W.Korten, G.de France, P.Davies, J.Liu, J.Lee, T.Lokotko, I.Kojouharov, N.Kurz, H.Shaffner, A.Petrovici

The β-decay of 70Kr into 70Br: Restoration of the pseudo-SU(4) symmetry

RADIOACTIVITY 70Kr(EC), (β+p) [from 9Be(78Kr, X), E=345 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced γ-ray energies, partial level scheme, T1/2, log ft, B(GT), β-delayed proton emission probability, an approximate realization of pseudo-SU(4) symmetry in the system. Comparison with the proton-neutron quasiparticle random-phase approximation (pnQRPA) calculations. The Radioactive Ion Beam Factory (RIBF) of the RIKEN Nishina Center using the BigRIPS fragment separator, the ZeroDegree Spectrometer, the WAS3ABI implantation station and the EURICA HPGe cluster array.

doi: 10.1016/j.physletb.2022.137123
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2021AL18      Phys.Lett. B 819, 136438 (2021)

A.Algora, E.Ganioglu, P.Sarriguren, V.Guadilla, L.M.Fraile, E.Nacher, B.Rubio, J.L.Tain, J.Agramunt, W.Gelletly, J.A.Briz, R.B.Cakirli, M.Fallot, D.Jordan, Z.Halasz, I.Kuti, A.Montaner, A.Onillon, S.E.A.Orrigo, A.Perez Cerdan, S.Rice, V.Vedia, E.Valencia

Total absorption gamma-ray spectroscopy study of the β-decay of 186Hg

RADIOACTIVITY 186Hg(EC) [from Pb(p, X), E=1.4 GeV]; measured decay products, Eγ, Iγ, X-rays; deduced γ-ray energies, J, π, Gamow-Teller strength distribution. Comparison with QRPA calculations.

doi: 10.1016/j.physletb.2021.136438
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2021DO03      Phys.Rev. C 103, 025810 (2021)

A.C.Dombos, A.Spyrou, F.Naqvi, S.J.Quinn, S.N.Liddick, A.Algora, T.Baumann, J.Brett, B.P.Crider, P.A.DeYoung, T.Ginter, J.Gombas, S.Lyons, T.Marketin, P.Moller, W.-J.Ong, A.Palmisano, J.Pereira, C.J.Prokop, P.Sarriguren, D.P.Scriven, A.Simon, M.K.Smith, S.Valenta

Total absorption spectroscopy of the β decay of 101, 102Zr and 109Tc

RADIOACTIVITY 101,102Zr, 109Tc(β-)[from 9Be(124Sn, X), E=120 MeV/nucleon, followed by separation of fragments using A1900 separator at NSCL-MSU]; measured Eγ, Iγ, implanted ions, (implants)γ-correlations using Summing NaI(Tl) (SuN) detector for total absorption spectroscopy; deduced β feedings as function of excitation energy, B(GT). Comparison with theoretical results from three different quasiparticle random-phase approximation (QRPA) models to investigate the ground-state shapes of the parent nuclei, and to test commonly used models that provide β-decay properties in r-process network calculations.

doi: 10.1103/PhysRevC.103.025810
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2021GA30      Phys.Rev. C 104, 044312 (2021)

M.K.Gaidarov, E.Moya de Guerra, A.N.Antonov, I.C.Danchev, P.Sarriguren, D.N.Kadrev

Nuclear symmetry energy components and their ratio: A new approach within the coherent density fluctuation model

NUCLEAR STRUCTURE 78Ni; calculated symmetry energy as a function of the flucton radius with Brueckner EDF, Skyrme EDF, and the BHF method with Bonn-B and Bonn-CD potentials 78Ni, 132Sn, 208Pb; calculated weight functions in the Skyrme HF+BCS method with the SLy4 force. 74,75,76,77,78,79,80,81,82,83,84Ni, 124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152,153,154,155,156Sn, 202,203,204,205,206,207,208,209,210,211,212,213,214Pb; calculated symmetry energy, ratios of surface-to-volume components of nuclear symmetry energy using Brueckner EDF, Skyrme EDF, and BHF method with Bonn-B and Bonn-CD potentials, and densities from self-consistent Skyrme-Hartree-Fock plus BCS method with Skyrme SLy4 force. Coherent density fluctuation model (CDFM), based on Skyrme and Brueckner energy-density functionals (EDF) with SLy4 Skyrme effective interaction for nuclear matter, and on the nonrelativistic Brueckner-Hartree-Fock (BHF) method with realistic Bonn-B and Bonn-CD nucleon-nucleon potentials.

doi: 10.1103/PhysRevC.104.044312
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2021HE03      Phys.Rev. C 103, 014303 (2021)

B.Hernandez, P.Sarriguren, O.Moreno, E.Moya de Guerra, D.N.Kadrev, A.N.Antonov

Nuclear shape transitions and elastic magnetic electron scattering

NUCLEAR STRUCTURE 15C, 17,19O, 17,19,21F, 19,21Ne, 23Mg, 25,27,29Al, 45Ca, 47Ti, 49,51,53V, 49Cr, 51,53,55Mn, 99Mo, 101Ru, 103Pd, 125,127,129I, 131,133,135Cs; calculated charge root-mean-square radii, quadrupole deformation β, magnetic dipole and spectroscopic electric quadrupole moment using deformed self-consistent mean-field method based on a Skyrme HF+BCS formalism. Comparison with experimental values taken from published evaluations.

NUCLEAR REACTIONS 15C, 17,19O, 17,19,21F, 19,21Ne, 23Mg, 25,27,29Al, 45Ca, 47Ti, 49,51,53V, 49Cr, 51,53,55Mn, 99Mo, 101Ru, 103Pd, 125,127,129I, 131,133,135Cs(e, e'), at momentum transfer θ<4 fm-1; calculated total magnetic form factors, decomposition into the contributing multipoles using plane-wave Born approximation. Relevance to future electron scattering experiments with electron-radioactive beam colliders.

doi: 10.1103/PhysRevC.103.014303
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2021SA15      Phys.Lett. B 815, 136149 (2021)

P.Sarriguren

Self-consistent calculations of electron-capture decays in Z=118, 119, and 120 superheavy isotopes

RADIOACTIVITY 293,294,295,296,297,298,299,300,301,302Og, 294,295,296,297,298,299,300,301,302,303119, 295,296,297,298,299,300,301,302,303,304120(EC), (α); calculated T1/2 using five different phenomenological formulas.

doi: 10.1016/j.physletb.2021.136149
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2021ZH50      Phys.Rev. C 104, 034303 (2021)

J.T.Zhang, X.L.Tu, P.Sarriguren, K.Yue, Q.Zeng, Z.Y.Sun, M.Wang, Y.H.Zhang, X.H.Zhou, Yu.A.Litvinov

Systematic trends of neutron skin thickness versus relative neutron excess

NUCLEAR STRUCTURE 40,42,44,46,48Ca, 58,60,62,64Ni, 106,110,112,114,116Cd, 112,114,116,118,120,122,124Sn, 204,206,208Pb; compiled and evaluated experimental data for skin thicknesses from experiments involving interaction cross sections, antiprotonic atom, giant dipole resonance (GDR), spin dipole resonance (SDR), and pygmy dipole resonance (PDR); deduced trends of experimental neutron skin thickness versus relative neutron excess for isotopic chains, and compared with calculations using deformed Skyrme Hartree-Fock + Bardeen-Cooper-Schrieffer model with SLy4 force. Relevance to role of skin thicknesses in constraining the parameters of the equation of state (EOS) of isospin asymmetric nuclear matter.

doi: 10.1103/PhysRevC.104.034303
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2020CI04      Phys.Rev. C 101, 034305 (2020)

A.A.Ciemny, W.Dominik, T.Ginter, R.Grzywacz, Z.Janas, M.Kuich, C.Mazzocchi, M.Pfutzner, M.Pomorski, D.Bazin, T.Baumann, A.Bezbakh, B.P.Crider, M.Cwiok, S.Go, G.Kaminski, K.Kolos, A.Korgul, E.Kwan, S.Liddick, K.Miernik, S.V.Paulauskas, J.Pereira, T.Roginski, K.Rykaczewski, C.Sumithrarachchi, Y.Xiao, H.Schatz, P.Sarriguren

First identification of 58Zn β-delayed proton emission

RADIOACTIVITY 57,58Zn(β+), (β+p)[from 9Be(78Kr, X), followed by separation of fragments using A1900 separator]; measured reaction products, Ep, Ip, β-delayed proton branching ratio, half-life of 57Zn decay using the Warsaw Optical Time Projection Chamber (OTPC) with energy loss and time-of-flight method for particle identification at the NSCL-MSU facility. 58Cu; deduced levels, J, π, β+p branching ratios, B(GT) for 1+ states. Comparison with experimental B(GT) values from 58Ni(3He, t)58Cu reaction, and with QRPA calculations.

doi: 10.1103/PhysRevC.101.034305
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2020DA07      Phys.Rev. C 101, 064315 (2020)

I.C.Danchev, A.N.Antonov, D.N.Kadrev, M.K.Gaidarov, P.Sarriguren, E.Moya de Guerra

Symmetry energy properties of neutron-rich nuclei from the coherent density fluctuation model applied to nuclear matter calculations with Bonn potentials

NUCLEAR STRUCTURE 74,76,78,80,82,84Ni, 124,126,128,130,132,134,136,138,140,142,144,146,148,150,152Sn, 202,204,206,208,210,212,214Pb; calculated symmetry energies, volume- and surface-components of the symmetry energy, pressure at saturation density. Brueckner-Hartree-Fock (BHF) calculations with realistic Bonn B and Bonn CD potentials using the coherent density fluctuation model (CDFM) in the framework of a self-consistent Skyrme-Hartree-Fock + BCS method. Discussed role of the three-body forces.

doi: 10.1103/PhysRevC.101.064315
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2020GA30      Nucl.Phys. A1004, 122061 (2020)

M.K.Gaidarov, I.Moumene, A.N.Antonov, D.N.Kadrev, P.Sarriguren, E.Moya de Guerra

Proton and neutron skins and symmetry energy of mirror nuclei

NUCLEAR STRUCTURE N=20, 14, 50; analyzed available data; calculated correlation between the thickness of the neutron skin and the characteristics related with the density dependence of the nuclear symmetry energy within the framework of the Hartree-Fock-Bogoliubov method with Skyrme interactions.

doi: 10.1016/j.nuclphysa.2020.122061
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2020SA42      J.Phys.(London) G46, 125107 (2020)

P.Sarriguren

Electron-capture decay in isotopic transfermium chains from self-consistent calculations

RADIOACTIVITY 259Md, 260No, 255,261Lr, 255,258,261,264,267Rf, 257,263,269Db, 258,261,264,267,270Sg, 261,267,273Bh, 263,266,269,272,275Hs, 265,271,277Mt(EC), (β+), 255Lr, 255,257,265Rf, 257,263,267Db, 265,267Sg, 267Bh, 269Hs(α); calculated deformation energy curves, T1/2. Comparison with experimental data.

doi: 10.1088/1361-6471/ab920d
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2019GU20      Phys.Rev. C 100, 024311 (2019)

V.Guadilla, A.Algora, J.L.Tain, J.Agramunt, J.Aysto, J.A.Briz, A.Cucoanes, T.Eronen, M.Estienne, M.Fallot, L.M.Fraile, E.Ganioglu, W.Gelletly, D.Gorelov, J.Hakala, A.Jokinen, D.Jordan, A.Kankainen, V.Kolhinen, J.Koponen, M.Lebois, L.Le Meur, T.Martinez, M.Monserrate, A.Montaner-Piza, I.Moore, E.Nacher, S.E.A.Orrigo, H.Penttila, I.Pohjalainen, A.Porta, J.Reinikainen, M.Reponen, S.Rinta-Antila, B.Rubio, K.Rytkonen, P.Sarriguren, T.Shiba, V.Sonnenschein, A.A.Sonzogni, E.Valencia, V.Vedia, A.Voss, J.N.Wilson, A.-A.Zakari-Issoufou

Total absorption γ-ray spectroscopy of niobium isomers

RADIOACTIVITY 100,100m,102,102mNb, 100,102Zr, 103Tc(β-)[from U(p, F), E=25 MeV at the IGISOL facility and JYFLTRAP double Penning trap system at the university of Jyvaskyla]; measured Eγ, Iγ, Eβ, βγ-coin, total absorption γ spectrum using Decay Total Absorption γ-ray Spectrometer (DTAS) with 18 NaI(Tl) crystals, a plastic β detector and an HPGe detector; deduced average γ and β energies, impact on antineutrino spectrum summation calculations. Comparison with evaluated data in ENSDF, ENDF/B-VII.1 and JEFF-3.1.1 databases. 100,100mNb, 102Nb(β-); deduced absolute γ-intensities deexciting the main levels in 100,102Mo, and compared to data in the ENSDF database.

doi: 10.1103/PhysRevC.100.024311
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2019SA21      Phys.Rev. C 99, 034325 (2019)

P.Sarriguren, D.Merino, O.Moreno, E.Moya de Guerra, D.N.Kadrev, A.N.Antonov, M.K.Gaidarov

Elastic magnetic electron scattering from deformed nuclei

NUCLEAR STRUCTURE 17O, 25Mg, 29Si, 39K, 41Ca, 51V, 59Co, 93Nb, 115In; calculated magnetic form factors from elastic electron scattering, magnetic moments, rms charge radii, quadrupole deformation parameter, and spectroscopic nuclear electric quadrupole moment. Plane-wave Born approximation with self-consistent mean-field calculations based on deformed Skyrme-Hartree-Fock one-body properties and pairing (HF+BCS) correlations, including collective effects in the cranking approximation. Comparison with experimental values.

doi: 10.1103/PhysRevC.99.034325
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2019SA37      Phys.Rev. C 100, 014309 (2019)

P.Sarriguren

Microscopic calculations of weak decays in superheavy nuclei

RADIOACTIVITY 290Fl, 293Mc, 294Lv, 295Ts(EC), (β+), (α); 246,247,248,251,253Fm, 253,255,257Md, 253,254,255,257,259No(EC); calculated Q-value, half-lives, Gamow-Teller strength distribution in 290Fl; deduced sensitivity of the half-lives to deformation and to the Q(ϵ) energies. 252Fm; calculated deformation-energy curve. Self-consistent deformed Skyrme-Hartree-Fock calculations with pairing correlations (HF+BCS). Comparison with experimental values.

doi: 10.1103/PhysRevC.100.014309
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2019SA51      Phys.Rev. C 100, 054306 (2019)

P.Sarriguren

Mean-field calculations of charge radii in ground and isomeric states of Cd isotopes

NUCLEAR STRUCTURE 98,99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130Cd; calculated quadrupole moments and rms charge radii for ground and isomeric states based on self-consistent deformed Skyrme-Hartree-Fock (SLy4 and SKM) models, with pairing correlations. Deformation-energy curves, quadrupole deformation β, root-mean-square charge radii are plotted in comparison with experimental values.

doi: 10.1103/PhysRevC.100.054306
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2018AN14      Phys.Rev. C 98, 054315 (2018)

A.N.Antonov, D.N.Kadrev, M.K.Gaidarov, P.Sarriguren, E.Moya de Guerra

Temperature dependence of the volume and surface contributions to the nuclear symmetry energy within the coherent density fluctuation model

NUCLEAR STRUCTURE 74,75,76,77,78,79,80,81,82Ni, 124,125,126,127,128,129,130,131,132,133,134,135,136,137,138,139,140,141,142,143,144,145,146,147,148,149,150,151,152Sn, 202,203,204,205,206,207,208,209,210,211,212,213,214Pb; calculated temperature dependence of the total, surface, and volume components of the nuclear symmetry energy (NSE) using coherent density fluctuation model (CDFM) with SkM* or SLy4 Skyrme interactions employing the HFBTHO computer code.

doi: 10.1103/PhysRevC.98.054315
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2018HO02      Phys.Rev.Lett. 120, 052502 (2018)

D.Hove, E.Garrido, P.Sarriguren, D.V.Fedorov, H.O.U.Fynbo, A.S.Jensen, N.T.Zinner

Emergence of Clusters: Halos, Efimov States, and Experimental Signals

NUCLEAR STRUCTURE 70,72Ca; calculated rms radii, single-particle energy distributions for neutrons, halo structure parameters.

doi: 10.1103/PhysRevLett.120.052502
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2018HO07      J.Phys.(London) G45, 073001 (2018)

D.Hove, E.Garrido, P.Sarriguren, D.V.Fedorov, H.O.U.Fynbo, A.S.Jensen, N.T.Zinner

Combined few-body and mean-field model for nuclei

doi: 10.1088/1361-6471/aac6de
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2018HO08      Phys.Lett. B 782, 42 (2018)

D.Hove, E.Garrido, A.S.Jensen, P.Sarriguren, H.O.U.Fynbo, D.V.Fedorov, N.T.Zinner

Two-proton capture on the 68Se nucleus with a new self-consistent cluster model

NUCLEAR REACTIONS 68Se(2p, γ)70Kr, E not given; calculated E2 electromagnetic two-proton dissociation and capture σ; deduced the temperature dependent capture rates.

doi: 10.1016/j.physletb.2018.05.002
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2018SA40      Phys.Rev. C 98, 024311 (2018)

P.Sarriguren, A.Algora, G.Kiss

β-decay properties of neutron-rich Ca, Ti, and Cr isotopes

NUCLEAR STRUCTURE 50,52,54,56,58,60,62,64Ca, 56,58,60,62,64,66,68,70Cr, 52,54,56,58,60,62,64,66Ti; calculated potential energy curves using constrained HF+BCS with Skyrme force SLy4.

RADIOACTIVITY 50,52,54,56,58,60,62,64Ca, 56,58,60,62,64,66,68,70Cr, 52,54,56,58,60,62,64,66Ti(β-); calculated T1/2, Q(β), S(n) of daughter nuclei, β-delayed neutron-emission probabilities (Pn), Gamow-Teller strength distributions using self-consistent deformed Skyrme-Hartree-Fock model with pairing and QRPA correlations.Comparison with other theoretical calculations of half-lives and Pn, and with experimental data for half-lives.

doi: 10.1103/PhysRevC.98.024311
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2017AN01      Phys.Rev. C 95, 024314 (2017)

A.N.Antonov, D.N.Kadrev, M.K.Gaidarov, P.Sarriguren, E.Moya de Guerra

Temperature dependence of the symmetry energy and neutron skins in Ni, Sn, and Pb isotopic chains

NUCLEAR STRUCTURE 208Pb, 78Ni, 132Sn; calculated proton and neutron local density distributions. 60,62,64,66,68,70,72,74,76,78,80,82Ni, 124,126,128,130,132,134,136,138,140,142,144,146,148,150,152Sn, 200,202,204,206,208,210,212,214Pb; calculated mass and temperature dependence of the proton and neutron radii, temperature and mass dependence of the symmetry energy coefficient. Skyrme energy density functional with SkM* and SLy4 effective interactions, in the framework of the local density approximation (LDA), using HFBTHO computer code.

doi: 10.1103/PhysRevC.95.024314
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2017HO12      Phys.Rev. C 95, 061301 (2017)

D.Hove, E.Garrido, P.Sarriguren, D.V.Fedorov, H.O.U.Fynbo, A.S.Jensen, N.T.Zinner

Combined mean-field and three-body model tested on the 26O nucleus

NUCLEAR STRUCTURE 26O; calculated ground-state energy, probability distribution of the two valence neutrons in 26O, invariant mass spectra of core neutron, single-particle energy distributions after decay of the ground-state resonance. New self-consistent three-body model (core+two valence neutrons) with meanfield approximation and effective Skyrme interaction. 25,26O; comparison with experimental data.

doi: 10.1103/PhysRevC.95.061301
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2017RI08      Phys.Rev. C 96, 014320 (2017)

S.Rice, A.Algora, J.L.Tain, E.Valencia, J.Agramunt, B.Rubio, W.Gelletly, P.H.Regan, A.-A.Zakari-Issoufou, M.Fallot, A.Porta, J.Rissanen, T.Eronen, J.Aysto, L.Batist, M.Bowry, V.M.Bui, R.Caballero-Folch, D.Cano-Ott, V.-V.Elomaa, E.Estevez, G.F.Farrelly, A.R.Garcia, B.Gomez-Hornillos, V.Gorlychev, J.Hakala, M.D.Jordan, A.Jokinen, V.S.Kolhinen, F.G.Kondev, T.Martinez, P.Mason, E.Mendoza, I.Moore, H.Penttila, Zs.Podolyak, M.Reponen, V.Sonnenschein, A.A.Sonzogni, P.Sarriguren

Total absorption spectroscopy study of the β decay of 86Br and 91Rb

RADIOACTIVITY 86Br, 91Rb(β-)[from U(p, F), E not given, radioactive beams purified by JYFLTRAP Penning trap at Jyvaskyla]; measured Eγ, Iγ, βγ-coin, total absorption gamma spectrum (TAGS) using Valencia-Surrey Total Absorption Spectrometer Rocinante at the IGISOL facility of the University of Jyvaskyla; deduced mean average energy for β particles and γ rays, β spectra, B(GT) strengths, impact of the investigated decays in the prediction of decay heat and antineutrino spectrum from nuclear reactors. Comparison with previous experimental data, with the evaluated high-resolution decay data in the ENSDF database at NNDC-BNL, and with quasiparticle random-phase approximation calculations.

doi: 10.1103/PhysRevC.96.014320
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2017SA02      Phys.Rev. C 95, 014304 (2017)

P.Sarriguren

β-decay properties of neutron-rich rare-earth isotopes

NUCLEAR STRUCTURE 140,142,144,146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180Xe, 142,144,146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180,182Ba, 146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180,182,184Ce, 152,154,156,158,160,162,164,166,168,170,172,174,176,178,180,182,184,186Nd, 158,160,162,164,166,168,170,172,174,176,178,180,182,184,186,188Sm, 162,164,166,168,170,172,174,176,178,180,182,184,186,188,190Gd, 168,170,172,174,176,178,180,182,184,186,188,190,192Dy; calculated quadrupole deformation β2 from SLy4, energy curves that show the energy as a function of quadrupole deformation β2 using constrained Hartree-Fock (HF) + BCS formalism.

RADIOACTIVITY 140,142,144,146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180Xe, 142,144,146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180,182Ba, 146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,176,178,180,182,184Ce, 152,154,156,158,160,162,164,166,168,170,172,174,176,178,180,182,184,186Nd, 158,160,162,164,166,168,170,172,174,176,178,180,182,184,186,188Sm, 162,164,166,168,170,172,174,176,178,180,182,184,186,188,190Gd, 168,170,172,174,176,178,180,182,184,186,188,190,192Dy(β-), (β-n); calculated Gamow-Teller strength distributions, β-decay half-lives, β-delayed neutron emission probabilities. Self-consistent deformed Skyrme-Hartree-Fock calculations with pairing and QRPA correlations. Comparison with other theoretical calculations, phenomenological model, and with available experimental data.

doi: 10.1103/PhysRevC.95.014304
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2017SA08      Acta Phys.Pol. B48, 287 (2017)

P.Sarriguren

QRPA Calculations of Stellar Weak-interaction Rates

RADIOACTIVITY 55Mn(β+); calculated β-decay GT strength distribution from discrete states, Compared with data on (n, p) reaction. 55Mn, 76Sr(β+); calculated β-decay, weak decay rates vs temperature (0-10 GK) for different densities. SLy4-QRPA with account for deformation.

doi: 10.5506/APhysPolB.48.287
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2016AN11      Phys.Rev. C 94, 014319 (2016)

A.N.Antonov, M.K.Gaidarov, P.Sarriguren, E.Moya de Guerra

Volume and surface contributions to the nuclear symmetry energy within the coherent density fluctuation model

NUCLEAR STRUCTURE 74,76,78,80,82,84Ni, 124,126,128,130,132,134,136,138,140,142,144,146,148,150,152Sn, 206,208,210,212,214Pb; calculated volume and surface components of nuclear symmetry energy (NSE) and their ratios. Coherent density fluctuation model (CDFM), and Skyrme energy-density functional. Comparison with estimations in other approaches using available experimental data on binding energies, neutron-skin thicknesses, and excitation energies to isobaric analog states (IAS), and with other theoretical methods.

doi: 10.1103/PhysRevC.94.014319
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2016SA21      Phys.Rev. C 93, 054309 (2016)

P.Sarriguren

Contribution of excited states to stellar weak-interaction rates in odd-A nuclei

NUCLEAR STRUCTURE 45Sc, 51V, 53,55,57Fe, 55Mn; calculated Gamow-Teller (B(GT)) strength distributions and stellar weak interaction rates for odd-A nuclei. Selfconsistent deformed Skyrme-Hartree-Fock calculations with pairing and QRPA correlations (HF+BCS+QRPA) using SLY4 interaction. Comparison with experimental data from (p, n) reactions.

doi: 10.1103/PhysRevC.93.054309
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2015BO01      Phys.Rev. C 91, 034311 (2015)

J.M.Boillos, P.Sarriguren

Effects of deformation on the β-decay patterns of light even-even and odd-mass Hg and Pt isotopes

NUCLEAR STRUCTURE 176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192Hg, 172,173,174,175,176,177,178,179,180,181,182,183,184,185,186Pt; calculated deformation energy curves as function of β, quadrupole deformation parameter, rms radii, Gamow-Teller strength distributions; deduced signatures of nuclear deformation. Self-consistent Skyrme-Hartree-Fock calculations with pairing and QRPA correlations.

RADIOACTIVITY 176,177,178,179,180,181,182,183,184,185,186,187,188,189,190,191,192Hg, 172,173,174,175,176,177,178,179,180,181,182,183,184,185,186Pt(EC), (β+); calculated half-lives, Gamow-Teller strength distributions. Self-consistent Skyrme-Hartree-Fock calculations with pairing and QRPA correlations. Comparison with experimental data.

doi: 10.1103/PhysRevC.91.034311
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2015BR17      Phys.Rev. C 92, 054326 (2015)

J.A.Briz, E.Nacher, M.J.G.Borge, A.Algora, B.Rubio, Ph.Dessagne, A.Maira, D.Cano-Ott, S.Courtin, D.Escrig, L.M.Fraile, W.Gelletly, A.Jungclaus, G.Le Scornet, F.Marechal, Ch.Miehe, E.Poirier, A.Poves, P.Sarriguren, J.L.Tain, O.Tengblad

Shape study of the N = Z nucleus 72Kr via β decay

RADIOACTIVITY 72Kr(β+), (EC)[from Nb(p, X), E=1.4 GeV at ISOLDE-CERN]; measured Eγ, Iγ, Eβ, total absorption spectrum (TAS), β(TAS)-coin, using Lucrecia TAS detection system at CERN; deduced β++ϵ intensity distribution as function of excitation energy of 72Br, B(GT) distribution, shape coexistence, nuclear deformation. Comparison with QRPA and shell-model calculations. Comparison of relative intensities of γ-transitions from TAS analysis with those measured with HPGe coaxial detector and previous results from high-resolution spectroscopy.

doi: 10.1103/PhysRevC.92.054326
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2015ES07      Phys.Rev. C 92, 044321 (2015)

M.E.Estevez Aguado, A.Algora, J.Agramunt, B.Rubio, J.L.Tain, D.Jordan, L.M.Fraile, W.Gelletly, A.Frank, M.Csatlos, L.Csige, Zs.Dombradi, A.Krasznahorkay, E.Nacher, P.Sarriguren, M.J.G.Borge, J.A.Briz, O.Tengblad, F.Molina, O.Moreno, M.Kowalska, V.N.Fedosseev, B.A.Marsh, D.V.Fedorov, P.L.Molkanov, A.N.Andreyev, M.D.Seliverstov, K.Burkard, W.Huller

Shapes of 192, 190Pb ground states from β-decay studies using the total-absorption technique

RADIOACTIVITY 190,192Pb(EC), (β+)[from U(p, X), E=1.4 GeV]; measured Eγ, Iγ, (x ray)γ-coin using total absorption spectrometer Lucrecia (TAS) at CERN-ISOLDE facility; deduced I(ϵ), I(ϵ+β+) feedings, BG(T) strength distributions, deformation for ground states. Comparison with QRPA calculations, and with previous experimental data.

doi: 10.1103/PhysRevC.92.044321
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2015FU08      Phys.Rev. C 91, 064316 (2015)

Y.Fujita, H.Fujita, T.Adachi, G.Susoy, A.Algora, C.L.Bai, G.Colo, M.Csatlos, J.M.Deaven, E.Estevez Aguado, C.J.Guess, J.Gulyas, K.Hatanaka, K.Hirota, M.Honma, D.Ishikawa, A.Krasznahorkay, H.Matsubara, R.Meharchand, F.Molina, H.Nakada, H.Okamura, H.J.Ong, T.Otsuka, G.Perdikakis, B.Rubio, H.Sagawa, P.Sarriguren, C.Scholl, Y.Shimbara, E.J.Stephenson, T.Suzuki, A.Tamii, J.H.Thies, K.Yoshida, R.G.T.Zegers, J.Zenihiro

High-resolution study of Gamow-Teller excitations in the 42Ca (3He, t) 42Sc reaction and the observation of a "low-energy super-Gamow-Teller state"

NUCLEAR REACTIONS 42Ca(3He, t), E=140 MeV/nucleon; measured triton spectra, σ(θ) using Grand Raiden spectrometer at RCNP facility. 42Sc; deduced levels, J, π, IAS, isospin of excited GT states, L-transfers, B(GT), configurations. Comparison of B(GT) values with those for 44,48Sc, and from 42Ti β+ decay to 42Sc. Isospin assignments made in comparison with results from 42Ca(p, p') reaction. Comparison with shell-model calculations using GXPF1J interaction. 12N, 16F, 40,44Sc; observed peaks from contaminants in the target material, and appropriate corrections applied to triton spectra for 42Sc.

doi: 10.1103/PhysRevC.91.064316
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2015NA06      Phys.Rev. C 91, 024317 (2015)

D.Navas-Nicolas, P.Sarriguren

Gamow-Teller properties of the double-β-decay partners 116Cd(Sn) and 150Nd(Sm)

RADIOACTIVITY 116Cd, 150Nd(2β-); calculated Gamow-Teller strength distributions, 2νββ nuclear matrix elements. Self-consistent deformed skyrme-Hartree-Fock calculations with BCS pairing and QRPA correlations. Comparison with experimental Gamow-Teller strength distributions extracted from charge-exchange reactions.

doi: 10.1103/PhysRevC.91.024317
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2015SA14      Phys.Rev. C 91, 044304 (2015)

P.Sarriguren

β-decay properties of neutron-rich Ge, Se, Kr, Sr, Ru, and Pd isotopes from deformed quasiparticle random-phase approximation

NUCLEAR STRUCTURE 80,81,82,83,84,85,86,87,88,89,90,91,92,93,94Ge, 86,87,88,89,90,91,92,93,94,95,96,97,98,99,100Se, 90,91,92,93,94,95,96,97,98,99,100,101,102,103,104Kr, 94,95,96,97,98,99,100,101,102,103,104,105,106,107,108Sr, 100,102,104,106,108,110,112,114Zr, 104,106,108,110,112,114,116,118Mo, 110,111,112,113,114,115,116,117,118,119,120,121,122,123,124Ru, 114,115,116,117,118,119,120,121,122,123,124,125,126,127,128Pd; calculated potential energy curves as function of deformation parameter β for even-A Ge, Se, Kr, Sr, Zr, Mo, Ru and Pd nuclei, deformation parameter β, charge radii corresponding to the energy minima, QRPA-SLy4 Gamow-Teller B(GT) strength distributions up to excitation energy of 25 MeV and accumulated B(GT) strengths for prolate, oblate and spherical shapes of even-A and odd-A Ge, Se, Kr, Sr, Ru and Pd nuclei. Self-consistent deformed Skyrme-Hartree-Fock calculations with pairing and QRPA correlations, using SLy4 Skyrme force.

RADIOACTIVITY 80,81,82,83,84,85,86,87,88,89,90,91,92,93,94Ge, 86,87,88,89,90,91,92,93,94,95,96,97,98,99,100Se, 90,91,92,93,94,95,96,97,98,99,100,101,102,103,104Kr, 94,95,96,97,98,99,100,101,102,103,104,105,106,107,108Sr, 110,111,112,113,114,115,116,117,118,119,120,121,122,123,124Ru, 114,115,116,117,118,119,120,121,122,123,124,125,126,127,128Pd(β-); calculated half-lives for prolate and oblate shapes. Self-consistent deformed Skyrme-Hartree-Fock calculations with pairing and QRPA correlations, using SLy4 Skyrme force. Comparison with experimental values and systematics; deduced ratio of calculated to experimental β-decay half-lives for spherical and deformed shapes.

doi: 10.1103/PhysRevC.91.044304
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2014FU02      Phys.Rev.Lett. 112, 112502 (2014)

Y.Fujita, H.Fujita, T.Adachi, C.L.Bai, A.Algora, G.P.A.Berg, P.von Brentano, G.Colo, M.Csatlos, J.M.Deaven, E.Estevez Aguado, C.Fransen, D.De Frenne, K.Fujita, E.Ganioglu, C.J.Guess, J.Gulyas, K.Hatanaka, K.Hirota, M.Honma, D.Ishikawa, E.Jacobs, A.Krasznahorkay, H.Matsubara, K.Matsuyanagi, R.Meharchand, F.Molina, K.Muto, K.Nakanishi, A.Negret, H.Okamura, H.J.Ong, T.Otsuka, N.Pietralla, G.Perdikakis, L.Popescu, B.Rubio, H.Sagawa, P.Sarriguren, C.Scholl, Y.Shimbara, Y.Shimizu, G.Susoy, T.Suzuki, Y.Tameshige, A.Tamii, J.H.Thies, M.Uchida, T.Wakasa, M.Yosoi, R.G.T.Zegers, K.O.Zell, J.Zenihiro

Observation of Low- and High-Energy Gamow-Teller Phonon Excitations in Nuclei

NUCLEAR REACTIONS 42Ca, 46Ti, 50Cr, 54Fe(3He, t), E=140 MeV/nucleon; measured reaction products, Eγ, Iγ; deduced cumulative-sum strengths of the experimental B(GT) values in the final nuclei, two kinds of GT phonon states. GXPF1J, quasi particle random phase approximation (QRPA) framework based on a self-consistent Hartree-Fock mean field with Skyrme interaction calculations, comparison with available data.

doi: 10.1103/PhysRevLett.112.112502
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2014GA13      Phys.Rev. C 89, 064301 (2014)

M.K.Gaidarov, P.Sarriguren, A.N.Antonov, E.Moya de Guerra

Ground-state properties and symmetry energy of neutron-rich and neutron-deficient Mg isotopes

NUCLEAR STRUCTURE 20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36Mg; calculated potential energy curves, proton and neutron charge density distributions for even-even nuclei, nuclear symmetry energy, quadrupole deformation as function of mass, S(2n), proton, neutron, charge, and matter rms radii, neutron skin thickness, isotope shifts, charge radii in A=27-32 Mg isotopes in island of inversion. Self-consistent deformed Skyrme-Hartree-Fock plus BCS method. Comparison with experimental data.

doi: 10.1103/PhysRevC.89.064301
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2014GR10      Phys.Rev.Lett. 113, 092501 (2014)

E.Grodner, A.Gadea, P.Sarriguren, S.M.Lenzi, J.Grebosz, J.J.Valiente-Dobon, A.Algora, M.Gorska, P.H.Regan, D.Rudolph, G.de Angelis, J.Agramunt, N.Alkhomashi, L.Amon Susam, D.Bazzacco, J.Benlliure, G.Benzoni, P.Boutachkov, A.Bracco, L.Caceres, R.B.Cakirli, F.C.L.Crespi, C.Domingo-Pardo, M.Doncel, Zs.Dombradi, P.Doornenbal, E.Farnea, E.Ganioglu, W.Gelletly, J.Gerl, A.Gottardo, T.Huyuk, N.Kurz, S.Leoni, D.Mengoni, F.Molina, A.I.Morales, R.Orlandi, Y.Oktem, R.D.Page, D.Perez, S.Pietri, Zs.Podolyak, A.Poves, B.Quintana, S.Rinta-Antila, B.Rubio, B.S.Nara Singh, A.N.Steer, S.Verma, R.Wadsworth, O.Wieland, H.J.Wollersheim

Hindered Gamow-Teller Decay to the Odd-Odd N=Z 62Ga: Absence of Proton-Neutron T=0 Condensate in A=62

RADIOACTIVITY 62Ge(EC) [from 9Be(78Kr, X), E=750 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced T1/2, energy levels, J, π, Gamow-Teller strength B(GT). Comparison with ISM using KB3G interaction and QRPA approaches.

doi: 10.1103/PhysRevLett.113.092501
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2014HE29      Phys.Rev. C 90, 051303 (2014)

J.Henderson, D.G.Jenkins, K.Kaneko, P.Ruotsalainen, P.Sarriguren, K.Auranen, M.A.Bentley, P.J.Davies, A.Gorgen, T.Grahn, P.T.Greenlees, A.Hay, T.W.Henry, A.Herzan, U.Jakobsson, R.Julin, S.Juutinen, J.Konki, M.Leino, C.McPeake, S.Milne, A.J.Nichols, J.Pakarinen, P.Papadakis, J.Partanen, P.Peura, P.Rahkila, E.Sahin, M.Sandzelius, J.Saren, C.Scholey, M.Siciliano, L.Sinclair, J.Sorri, S.Stolze, J.Uusitalo, R.Wadsworth, M.Zielinska

Spectroscopy on the proton drip-line: Probing the structure dependence of isospin nonconserving interactions

NUCLEAR REACTIONS 40Ca(36Ar, 2n)74Sr, E=105 MeV; measured Eγ, Iγ, γγ-coin, Eβ, ΔE-E, TOF, half-lives of 74Sr and 74Rb ground states using RITU separator and JUROGAM II array at Jyvaskyla K130 cyclotron facility. Recoil-beta tagging technique. 74Sr, 74Rb; deduced levels, J, π, T=1 triplet energy differences (TEDs) for 74Sr, 74Rb and 74Kr. Comparison with State-of-the-art shell-model calculations using the JUN45 interaction, and isospin nonconserving (INC) interaction.

RADIOACTIVITY 74Sr, 74Rb(β+)[from 40Ca(36Ar, X), E=105 MeV]; measured half-lives of ground states.

doi: 10.1103/PhysRevC.90.051303
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2014SA18      Phys.Rev. C 89, 034311 (2014)

P.Sarriguren, A.Algora, J.Pereira

Gamow-Teller response in deformed even and odd neutron-rich Zr and Mo isotopes

RADIOACTIVITY 100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116Zr, 104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120Mo(β-); calculated Q(β), Gamow-Teller strength (B(GT)) distributions, half-lives, β-delayed neutron-emission probability Pn. Self-consistent deformed SLy4 Skyrme Hartree-Fock calculations with pairing and Quasi-particle random-phase approximation (QRPA) correlations. Comparison with experimental data.

doi: 10.1103/PhysRevC.89.034311
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2013MO39      Rom.J.Phys. 58, 1270 (2013)

O.Moreno, E.Navarro de Martino, E.Moya de Guerra, P.Sarriguren

Nuclear Structure Aspects of Atomic Parity Violation in Barium

NUCLEAR STRUCTURE 130,132,134,136,138,140Ba; calculated energy-deformation curves, spherical and weak charge densities, form factors, parity-violating asymmetry. HF+BCS calculation with three different Skyrme parameterization.


2013PE13      Phys.Rev. C 88, 014324 (2013)

A.B.Perez-Cerdan, B.Rubio, W.Gelletly, A.Algora, J.Agramunt, E.Nacher, J.L.Tain, P.Sarriguren, L.M.Fraile, M.J.G.Borge, L.Caballero, Ph.Dessagne, A.Jungclaus, G.Heitz, F.Marechal, E.Poirier, M.D.Salsac, O.Tengblad

Deformation of Sr and Rb isotopes close to the N=Z line via β-decay studies using the total absorption technique

RADIOACTIVITY 76,78Sr, 76,78Rb(β+), (EC)[from Nb(p, X), E=1.4 GeV]; measured Eγ, Iγ using total absorption spectrometer Lucrecia (TAS) at CERN-ISOLDE facility; deduced β feedings, BG(T) strength distributions, deformation in ground states. Comparison with QRPA calculations.

doi: 10.1103/PhysRevC.88.014324
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2013SA09      Phys.Rev. C 87, 045801 (2013)

P.Sarriguren

Stellar electron-capture rates in pf-shell nuclei from quasiparticle random-phase approximation calculations

NUCLEAR STRUCTURE 45Sc, 48Ti, 51V, 55Mn, 54,56Fe, 58,60,62,64Ni, 59Co, 64Zn; calculated Gamow-Teller strength distributions, and continuum electron capture rates at different density and temperature conditions in stellar scenarios. Self-consistent deformed Skyrme-Hartree-Fock calculations with pairing and QRPA correlations.

RADIOACTIVITY 45Sc, 48Ti, 51V, 55Mn, 54,56Fe, 58,60,62,64Ni, 59Co, 64Zn(EC); calculated Gamow-Teller strength distributions, and electron capture rates in stellar conditions. Self-consistent deformed Skyrme-Hartree-Fock calculations with pairing and QRPA correlations.

doi: 10.1103/PhysRevC.87.045801
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2013SA52      Rom.J.Phys. 58, 1242 (2013)

P.Sarriguren, O.Moreno, E.Moya de Guerra

Gamow-Teller Strength Distributions in the Double-Beta Decay Partners 128, 130Te and 128, 130Xe

NUCLEAR STRUCTURE 128,130Te, 128,130Xe; calculated Gamow-Teller strength distributions. Deformed QRPA, comparison with experimental data.

RADIOACTIVITY 128,130Te(2β-); calculated nuclear matrix elements for two-neutrino mode, Deformed QRPA, comparison with experimental data.


2012AL03      Phys.Rev.Lett. 108, 062701 (2012); Erratum Phys.Rev.Lett. 109, 209904 (2012)

M.Albers, N.Warr, K.Nomura, A.Blazhev, J.Jolie, D.Mucher, B.Bastin, C.Bauer, C.Bernards, L.Bettermann, V.Bildstein, J.Butterworth, M.Cappellazzo, J.Cederkall, D.Cline, I.Darby, S.Das Gupta, J.M.Daugas, T.Davinson, H.De Witte, J.Diriken, D.Filipescu, E.Fiori, C.Fransen, L.P.Gaffney, G.Georgiev, R.Gernhauser, M.Hackstein, S.Heinze, H.Hess, M.Huyse, D.Jenkins, J.Konki, M.Kowalczyk, T.Kroll, R.Krucken, J.Litzinger, R.Lutter, N.Marginean, C.Mihai, K.Moschner, P.Napiorkowski, B.S.Nara Singh, K.Nowak, T.Otsuka, J.Pakarinen, M.Pfeiffer, D.Radeck, P.Reiter, S.Rigby, L.M.Robledo, R.Rodriguez-Guzman, M.Rudigier, P.Sarriguren, M.Scheck, M.Seidlitz, B.Siebeck, G.Simpson, P.Thole, T.Thomas, J.Van de Walle, P.Van Duppen, M.Vermeulen, D.Voulot, R.Wadsworth, F.Wenander, K.Wimmer, K.O.Zell, M.Zielinska

Evidence for a Smooth Onset of Deformation in the Neutron-Rich Kr Isotopes

NUCLEAR REACTIONS 194,196Pt(94Kr, 94Kr'), (96Kr, 96Kr'), 285 MeV/nucleon; measured reaction products, Eγ, Iγ. 94,96Kr; deduced J, π, B(E2), spectroscopic quadrupole moments. Comparison with IBM calculations based on the constrained HFB approach using the microscopic Gogny-D1M energy density functional.

doi: 10.1103/PhysRevLett.108.062701
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2012DE30      J.Phys.:Conf.Ser. 366, 012011 (2012)

E.M.de Guerra, O.Moreno, P.Sarriguren, M.Ramon

Topics on Nuclear Structure with Electroweak Probes

NUCLEAR REACTIONS 12C, 208Pb(polarized e, e), E not given; calculated parity-violation asymmetry vs transferred momentum using self-consistent mean field with Skyrme interactions.

RADIOACTIVITY 187Re(β-); calculated differential β-decay rate vs electron energy for different assumptions on ν mass. 76Ge(2β-); calculated 2ν2β matrix elements vs energy using self-consistent MF with Skyrme interactions.

doi: 10.1088/1742-6596/366/1/012011
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2012GA24      Phys.Rev. C 85, 064319 (2012)

M.K.Gaidarov, A.N.Antonov, P.Sarriguren, E.Moya de Guerra

Symmetry energy of deformed neutron-rich nuclei

NUCLEAR STRUCTURE 82,84,86,88,90,92,94,96,98,100,102,104,106,108,110,112,114,116,118,120Kr; 140,142,144,146,148,150,152,154,156Sm, 202,204, 206,208,210,212,214Pb; calculated proton and neutron rms radii, and quadrupole parameter β in Kr isotopes for prolate and oblate shapes, symmetry energy and neutron skin thickness for Kr, Sm and Pb nuclei. 74,76,78,80,82Ni, 128,130,132,134,136Sn, 204,206,208,210,212Pb; calculated weight functions, contribution to the total symmetry energy, HF+BCS total densities. Microscopic approach based on (prolate and oblate) deformed HF+BCS calculations with SGII, Sk3, SLy4, and LNS Skyrme forces. Comparison with experimental data.

doi: 10.1103/PhysRevC.85.064319
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2012RO27      Phys.Rev. C 86, 034336 (2012)

R.Rodriguez-Guzman, L.M.Robledo, P.Sarriguren

Microscopic description of quadrupole-octupole coupling in Sm and Gd isotopes with the Gogny energy density functional

NUCLEAR STRUCTURE 146,148,150,152,154Sm, 148,150,152,154,156Gd; calculated mean-field potential energy surfaces in Q20-Q30 plane, B(E1), B(E3), proton and neutron pairing energies, electric dipole moment D, quadrupole moment Q20 and octupole moment Q30, single-particle energies as function of quadrupole and octupole moments, parity-projected potential energy surface contours, dynamical dipole, quadrupole and octupole moments. Gogny-DIS and Gogny-DIM energy density functionals. Comparison with experimental data.

doi: 10.1103/PhysRevC.86.034336
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2012SA38      Phys.Rev. C 86, 034335 (2012)

P.Sarriguren

Deformation effects on the Gamow-Teller strength distributions in the double-β decay partners 76Ge and 76Se

NUCLEAR STRUCTURE 76Ge, 76Se; calculated root mean square charge radii, intrinsic charge quadrupole moments, and quadrupole deformation β, B(GT) distributions, two-neutrino double-beta decay matrix elements using self-consistent deformed Skyrme-Hartree-Fock approach with pairing and QRPA. Comparison with experimental data.

NUCLEAR REACTIONS 76Ge(3He, t)76As, 76Se(d, 2He)76As, E not given; analyzed and calculated B(GT) using deformed quasiparticle random phase approximation built on a Skyrme self-consistent mean field.

doi: 10.1103/PhysRevC.86.034335
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2012SA64      J.Phys.:Conf.Ser. 366, 012039 (2012)

P.Sarriguren

Weak decay rates for waiting-point nuclei involved in the rp-process

doi: 10.1088/1742-6596/366/1/012039
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2012SM02      Phys.Rev. C 86, 014321 (2012)

A.G.Smith, J.L.Durell, W.R.Phillips, W.Urban, P.Sarriguren, I.Ahmad

Lifetime measurements and nuclear deformation in the A ≈ 100 region

RADIOACTIVITY 248Cm(SF); measured Eγ, γγ-coin, level half-lives by Doppler broadended line shape analysis using EUROGAM-2 array. 96,97,98,100Sr, 98,99,100,101,102,104Zr, 103Nb, 102,103,104,105,106,107,108Mo, 108,109,110,111,112Ru, 114,116Pd; deduced levels, J, π, transition quadrupole moments. Onset of deformation at N AP 60 in Sr and Zr isotopes. Comparison with several theoretical calculations in the context of prolate-oblate shape competition.

doi: 10.1103/PhysRevC.86.014321
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2011GA40      Phys.Rev. C 84, 034316 (2011)

M.K.Gaidarov, A.N.Antonov, P.Sarriguren, E.Moya de Guerra

Surface properties of neutron-rich exotic nuclei: A source for studying the nuclear symmetry energy

NUCLEAR STRUCTURE 74,76,78,80,82,84Ni, 206,208,210,212,214Pb, 124,126,128,130,132,134,136,138,140,142,144,146,148,150,152,154,156Sn; calculated neutron skin thickness, symmetry energy, neutron pressure, asymmetric compressibility. Coherent density fluctuation model, deformed self-consistent mean-field Skyrme HF+BCS method.

doi: 10.1103/PhysRevC.84.034316
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2011MO35      J.Phys.:Conf.Ser. 312, 092044 (2011)

O.Moreno, P.Sarriguren, E.Moya de Guerra, J.M.Udias, T.W.Donnelly, I.Sick

Neutron densities from parity-violating elastic electron scattering

NUCLEAR STRUCTURE 12C, 208Pb; calculated parity-violation asymmetry vs transferred momentum in elastic scattering of polarized electrons using HF+BCS.

doi: 10.1088/1742-6596/312/9/092044
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2011MO36      J.Phys.:Conf.Ser. 312, 092045 (2011)

E.Moya de Guerra, O.Moreno, P.Sarriguren

Remodelling the spin-orbit term of Skyrme energy density functionals

NUCLEAR STRUCTURE 76Ge, 76Se; calculated neutron, proton levels, J, π, deformation, binding energies, charge radii, level occupation, influence of spin-orbit potential using HF+BCS with Skyrme energy density functionals. Compared to available data.

doi: 10.1088/1742-6596/312/9/092045
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2011NO01      Phys.Rev. C 83, 014309 (2011)

K.Nomura, T.Otsuka, R.Rodriguez-Guzman, L.M.Robledo, P.Sarriguren

Structural evolution in Pt isotopes with the interacting boson model Hamiltonian derived from the Gogny energy density functional

NUCLEAR STRUCTURE 172,174,176,178,180,182,184,186,188,190,192,194,196,198,200Pt; calculated potential energy surfaces in the β-γ plane, low-lying spectra of g.s., quasi β and quasi γ bands, B(E2) values, Level schemes for 184,186,188,190,192,194Pt nuclei. Interacting boson model (IBM) Hamiltonian from constrained Hartree-Fock-Bogoliubov (HFB) calculations with the finite range and density-dependent Gogny-D1S energy density functional. Shape transition in Pt nuclei. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.014309
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2011NO05      Phys.Rev. C 83, 054303 (2011)

K.Nomura, T.Otsuka, R.Rodriguez-Guzman, L.M.Robledo, P.Sarriguren, P.H.Regan, P.D.Stevenson, Zs.Podolyak

Spectroscopic calculations of the low-lying structure in exotic Os and W isotopes

NUCLEAR STRUCTURE 186,188,190,192,194,196,198Os, 184,186,188,190,192,194,196W; calculated levels, J, π, B(E2), potential energy surfaces, g.s. and quasi γ bands. Interacting boson model (IBM) Hamiltonian determined by (constrained) Hartree-Fock-Bogoliubov calculations with the Gogny-D1S energy density functional (EDF). Comparison with experimental data.

doi: 10.1103/PhysRevC.83.054303
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2011NO15      Phys.Rev. C 84, 054316 (2011)

K.Nomura, T.Otsuka, R.Rodriguez-Guzmin, L.M.Robledo, P.Sarriguren

Collective structural evolution in neutron-rich Yb, Hf, W, Os, and Pt isotopes

NUCLEAR STRUCTURE 180,182,184,186,188,190,192Yb, 182,184,186,188,190,192,194Hf, 184,186,188,190,192,194,196W, 186,188,190,192,194,196,198Os, 188,190,192,194,196,198,200Pt; calculated potential energy surfaces, ground-state correlation energies, moments of inertia, low-lying levels, J, π, B(E2) ratios. Interacting-boson-model (IBM) Hamiltonian from constrained Hartree-Fock-Bogoliubov calculations with the Gogny-DIM energy density functional. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.054316
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2011PE29      Phys.Rev. C 84, 054311 (2011)

A.B.Perez-Cerdan, B.Rubio, W.Gelletly, A.Algora, J.Agramunt, K.Burkard, W.Huller, E.Nacher, P.Sarriguren, L.Caballero, F.Molina, L.M.Fraile, E.Reillo, M.J.G.Borge, Ph.Dessagne, A.Jungclaus, M.-D.Salsac

β decay of 78Sr

RADIOACTIVITY 78Sr(β+)[from Nb(p, X), E=1 GeV]; measured, Eγ, Iγ, γγ-coin, E(ce), I(ce), half-life of 78Sr. 78Rb; deduced levels, J, π, internal conversion coefficients, multipolarity, β-feeding, log ft, B(GT), configurations. Mini-orange spectrometer and mass-separated beam at ISOLDE-CERN. Comparison with deformed Hartree-Fock with Skyrme interactions with the BCS approximation.

doi: 10.1103/PhysRevC.84.054311
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2011RO08      Phys.Rev. C 83, 044307 (2011)

R.Rodriguez-Guzman, P.Sarriguren, L.M.Robledo

Shape evolution in yttrium and niobium neutron-rich isotopes

NUCLEAR STRUCTURE 87,89,91,93,95,97,99,101,103,105,107Y, 89,91,93,95,97,99,101,103,105,107,109Nb; calculated levels, J, π, charge radii, S(2n), one-quasiproton configurations, quadrupole deformations. 100Zr; calculated proton single-particle energies versus quadrupole deformation parameter. 92,94,96,98Kr; calculated Q-γ planes. Z=36-42, N=46-64; calculated charge radii. Self-consistent Hartree-Fock-Bogoliubov calculations with Gogny interactions. Comparison with experimental data.

doi: 10.1103/PhysRevC.83.044307
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2011SA06      Phys.Rev. C 83, 025801 (2011)

P.Sarriguren

Stellar weak decay rates in neutron-deficient medium-mass nuclei

RADIOACTIVITY 50,52,54Ni, 56,58,60Zn, 62,64,66Ge, 66,68,70Se, 70,72,74Kr, 74,76,78Sr, 80,82,84Zr, 84,86,88Mo, 88,90,92Ru, 92,94,96Pd, 96,98,100Cd, 100,102,104Sn(β+), (EC); calculated G-T strength distributions, and decay rates of waiting point and neighboring nuclides under stellar density and temperature conditions in rp process using self-consistent deformed Skyrme-Hartree Fock + BCS + quasiparticle random-phase-approximation (QRPA) approach.

doi: 10.1103/PhysRevC.83.025801
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2010MO05      Phys.Rev. C 81, 041303 (2010)

O.Moreno, E.Moya de Guerra, P.Sarriguren, A.Faessler

Theoretical mean-field and experimental occupation probabilities in the double-β decay system 76Ge to 76Se

RADIOACTIVITY 76Ge(2β-); calculated matrix elements using self-consistent Skyrme + HF + BCS deformed mean-field approximation. Comparison with experimental data.

NUCLEAR STRUCTURE 74,76Ge, 76,78Se; calculated active-shell occupations and single-particle energies using self-consistent Skyrme + HF + BCS deformed mean-field approximation. Comparison with experimental data.

doi: 10.1103/PhysRevC.81.041303
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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
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2010RO17      Phys.Lett. B 691, 202 (2010)

R.Rodriguez-Guzman, P.Sarriguren, L.M.Robledo, S.Perez-Martin

Charge radii and structural evolution in Sr, Zr, and Mo isotopes

NUCLEAR STRUCTURE 86,88,90,92,94,96,98,100,102,104,106Sr, 88,90,92,94,96,98,100,102,104,106,108Zr, 88,90,92,94,96,98,100,102,104,106,108Mo; calculated charge radii, neutron separation energies; deduced structure effects, deformation. HFB calculation based on Gogny-D1S.

doi: 10.1016/j.physletb.2010.06.035
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2010RO27      Phys.Rev. C 82, 044318 (2010)

R.Rodriguez-Guzman, P.Sarriguren, L.M.Robledo

Systematics of one-quasiparticle configurations in neutron-rich odd Sr, Zr, and Mo isotopes with the Gogny energy density functional

NUCLEAR STRUCTURE 90,92,94,96,98Sr, 92,94,96,98,100Zr, 94,96,98,100,102Mo; calculated potential energy curves as function of axial quadrupole moment. 85,87,89,91,93,95,97,99,101,103,105Sr, 87,89,91,93,95,97,99,101,103,105,107Zr, 89,91,93,95,97,99,101,103,105,107,109Mo; calculated one-quasineutron levels, J, π, configurations using Hartree-Fock-Bogoliubov (HFB)+ equal filling approximation (EFA)+generator coordinate method (GCM) framework. Comparison with experimental data.

doi: 10.1103/PhysRevC.82.044318
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2010RO31      Phys.Rev. C 82, 061302 (2010)

R.Rodriguez-Guzman, P.Sarriguren, L.M.Robledo

Signatures of shape transitions in odd-A neutron-rich rubidium isotopes

NUCLEAR STRUCTURE 85,87,89,91,93,95,97,99,101,103,105Rb; calculated one-quasiproton configurations, ground-state spins and parities, quadrupole deformation parameters, charge radii and S(2n) using self-consistent Hartree-Fock-Bogoliubov with Gogny interaction. Comparison with experimental data.

doi: 10.1103/PhysRevC.82.061302
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2010SA12      Phys.Rev. C 81, 064314 (2010)

P.Sarriguren, J.Pereira

β-decay properties of neutron-rich Zr and Mo isotopes

RADIOACTIVITY 100,102,104,106,108,110Zr, 104,106,108,110,112,114Mo(β-); calculated Gamow-Teller strength distributions, accumulated GT strengths, Qβ, neutron separation energies, half-lives, and β-delayed neutron emission probabilities using deformed quasiparticle random-phase approximation based on self-consistent Skyrme Hartree-Fock approach. Comparison with experimental data.

NUCLEAR STRUCTURE 100,102,104,106,108,110Zr, 104,106,108,110,112,114Mo; calculated potential energy curves as function of quadrupole deformation using constrained HF+BCS method with the Skyrme forces SG2 and SLy4.

doi: 10.1103/PhysRevC.81.064314
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2010SA40      J.Phys.:Conf.Ser. 205, 012024 (2010)

P.Sarriguren, R.R.Rodriguez-Guzman, L.M.Robledo

Microscopic description of shape evolution in medium-mass nuclei

NUCLEAR STRUCTURE 130Xe, 144,146,148,150,152,154,156,158Sm, 184,186,188,190,192,194,196W; calculated quadrupole moment, deformation including tri-axial degrees of freedom, potential energy surface, evolution of ground-state nuclear shapes. 190W; calculated single-particle levels. Self-consistent HFB with Gogny and Skyrme density-dependent interactions.

doi: 10.1088/1742-6596/205/1/012024
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2009GA39      Phys.Rev. C 80, 054305 (2009)

M.K.Gaidarov, G.Z.Krumova, P.Sarriguren, A.N.Antonov, M.V.Ivanov, E.Moya de Guerra

Momentum distributions in medium and heavy exotic nuclei

NUCLEAR STRUCTURE 50,64,78Ni, 84,86,98Kr, 100,120,136Sn; calculated proton, neutron, and total momentum distributions using self-consistent mean-field Skyrme Hartree-Fock + BCS method.

doi: 10.1103/PhysRevC.80.054305
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2009MO01      J.Phys.(London) G36, 015106 (2009)

O.Moreno, R.Alvarez-Rodriguez, P.Sarriguren, E.Moya de Guerra, F.Simkovic, A.Faessler

Single- and low-lying-states dominance in two-neutrino double-beta decay

RADIOACTIVITY 100Mo, 116Cd, 128Te(2β-); calculated matrix elements, decay rates. Single, low lying state dominance.

doi: 10.1088/0954-3899/36/1/015106
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2009MO35      Nucl.Phys. A828, 306 (2009)

O.Moreno, P.Sarriguren, E.Moya de Guerra, J.M.Udias, T.W.Donnelly, I.Sick

Nuclear isospin mixing and elastic parity-violating electron scattering

NUCLEAR REACTIONS 12C, 24Mg, 28Si, 32S(e, e), E=400, 1000 MeV; analyzed σ(θ, E), parity-violating asymmetry, related features using a self consistent axially symmetric mean field approximation with density dependent effective two body Skyrme interactions. Plane- and distorted-wave Born approximations.

doi: 10.1016/j.nuclphysa.2009.07.011
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2009RO20      J.Phys.(London) G36, 115104 (2009)

L.M.Robledo, R.Rodriguez-Guzman, P.Sarriguren

Role of triaxiality in the ground-state shape of neutron-rich Yb, Hf, W, Os and Pt isotopes

NUCLEAR STRUCTURE 180,182,184,186,188,190,192Yb, 182,184,186,188,190,192,194Hf, 184,186,188,190,192,194,194W, 186,188,190,192,194,196,198Os, 188,190,192,194,196,198,200Pt; calculated mean-field energies, single-particle energies, static moments of inertia. Self-consistent HFB approximation.

doi: 10.1088/0954-3899/36/11/115104
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2009SA15      Phys.Rev. C 79, 044315 (2009)

P.Sarriguren

Shape mixing and β-decay properties of neutron-deficient Kr and Sr isotopes

NUCLEAR STRUCTURE 72,74Kr, 76,78Sr; calculated potential energy curves, electric monopole strengths, Gamow-Teller (GT) strength distributions, half-lives, shape mixing coefficients using BCS approximation, quasiparticle random phase approximation (QRPA), and Skyrme Hartee-Fock (HF) calculations.

doi: 10.1103/PhysRevC.79.044315
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2009SA41      Phys.Lett. B 680, 438 (2009)

P.Sarriguren

Weak interaction rates for Kr and Sr waiting-point nuclei under rp-process conditions

RADIOACTIVITY 72,74Kr, 76,78Sr(EC), (β+); calculated T1/2 using a QRPA model in stellar rp conditions.

doi: 10.1016/j.physletb.2009.09.046
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2008RO22      Phys.Rev. C 78, 034314 (2008)

L.M.Robledo, R.R.Rodriguez-Guzman, P.Sarriguren

Evolution of nuclear shapes in medium mass isotopes from a microscopic perspective

NUCLEAR STRUCTURE 96,98,100,102,104,106,108,110,112,114,116,118Pd, 118,120,122,124,126,128,130,132,134,136,138,140Xe, 118,120,122,124,126,128,130,132,134,136,138Ba, 146,148,150,152,154,156,158,160Sm, 142,144,146,148,150,152,154,156Nd, 148,150,152,154,156,158,160Gd, 146,148,150,152,154,156,158,160,162Dy; calculated potential energy curves and surfaces as a function of deformation parameters and quadrupole moment. Hartree-Fock-Bogoliubov approximation based on finite range and density dependant Gogny interaction.

doi: 10.1103/PhysRevC.78.034314
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2008SA21      Phys.Rev. C 77, 064322 (2008)

P.Sarriguren, R.Rodriguez-Guzman, L.M.Robledo

Shape transitions in neutron-rich Yb, Hf, W, Os, and Pt isotopes within a Skyrme Hartree-Fock + BCS approach

NUCLEAR STRUCTURE 176,178,180,182,184,186,188,190,192Yb, 178,180,182,184,186,188,190,192,194Hf, 180,182,184,186,188,190,192,194,196W, 182,184,186,188,190,192,194,196,198Os, 184,186,188,190,192,194,196,198,200Pt; calculated ratio of excitation energies between first 4+ and 2+ states, potential energy curves, intrinsic quadrupole moments, moments of inertia. Skyrme Hartree-Fock with BCS model.

doi: 10.1103/PhysRevC.77.064322
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2007DU16      Phys.Rev. C 76, 011302 (2007)

G.G.Dussel, S.Pittel, J.Dukelsky, P.Sarriguren

Cooper pairs in atomic nuclei

doi: 10.1103/PhysRevC.76.011302
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2007RO26      Phys.Rev. C 76, 064303 (2007)

R.Rodriguez-Guzman, P.Sarriguren

E(5) and X(5) shape phase transitions within a Skyrme-Hartree-Fock + BCS approach

NUCLEAR STRUCTURE 96,98,100,102,104,106,108,110,112,114Pd, 118,120,122,124,126,128,130,132,134,136Xe, 120,122,124,126,128,130,132,134,136,138Ba, 142,144,146,148,150,152,154,156Nd, 144,146,148,150,152,154,156,158Sm, 146,148,150,152,154,156Gd, 148,150,152,154,156,158Dy; calculated E(5) and X(5) symmetries, deformation parameters, potential energy curves. Skyrme-Hartree-Fock model.

doi: 10.1103/PhysRevC.76.064303
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2007SA53      Phys.Rev. C 76, 044322 (2007)

P.Sarriguren, M.K.Gaidarov, E.Moya de Guerra, A.N.Antonov

Nuclear skin emergence in Skyrme deformed Hartree-Fock calculations

NUCLEAR STRUCTURE 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134,136Sn, 48,50,52,54,56,58,60,62,64,66,68,70,72,74,76,78Ni, 70,72,74,76,78,80,82,84,86,88,90,92,94,96,98,100Kr; calculated charge density, matter density, rms radii for even isotopes. Used Skyrme-deformed Hartree-Fock+BCS calculations.

doi: 10.1103/PhysRevC.76.044322
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2006AL08      Prog.Part.Nucl.Phys. 57, 251 (2006)

R.Alvarez-Rodriguez, P.Sarriguren, E.Moya de Guerra, L.Pacearescu, A.Faessler, F.Simkovic

Effect of deformation on two-neutrino double beta decay matrix elements

NUCLEAR STRUCTURE 100Mo; calculated Gamow-Teller strength distributions, 2νββ-decay matrix elements, deformation effects.

doi: 10.1016/j.ppnp.2005.10.003
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2006AN12      Phys.Rev. C 73, 047302 (2006), Erratum Phys.Rev. C 73, 059901 (2006)

A.N.Antonov, M.V.Ivanov, M.K.Gaidarov, E.Moya de Guerra, P.Sarriguren, J.M.Udias

Scaling functions and superscaling in medium and heavy nuclei

NUCLEAR STRUCTURE 62Ni, 82Kr, 118Sn, 197Au; calculated scaling functions. Coherent density fluctuation model, relativistic Fermi gas model, deformed self-consistent mean-field calculations.

doi: 10.1103/PhysRevC.73.047302
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2006AN29      Phys.Rev. C 74, 054603 (2006)

A.N.Antonov, M.V.Ivanov, M.K.Gaidarov, E.Moya de Guerra, J.A.Caballero, M.B.Barbaro, J.M.Udias, P.Sarriguren

Superscaling analysis of inclusive electron scattering and its extension to charge-changing neutrino-nucleus cross sections beyond the relativistic Fermi gas approach

NUCLEAR REACTIONS 12C(e, e'X), E ≈ 0.5-2 GeV; calculated σ(E, θ), scaling functions. Superscaling analysis, coherent density fluctuation model, relativistic Fermi gas model.

doi: 10.1103/PhysRevC.74.054603
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2006MO09      Prog.Part.Nucl.Phys. 57, 254 (2006)

O.Moreno, P.Sarriguren, R.Alvarez-Rodriguez, E.Moya de Guerra

Signatures of nuclear deformation in beta decay patterns

NUCLEAR STRUCTURE 184,186,188,190,192,194Pb; calculated energy vs deformation. 184Pb; calculated Gamow_teller strength distribution vs deformation.

doi: 10.1016/j.ppnp.2005.10.002
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2006MO15      Phys.Rev. C 73, 054302 (2006)

O.Moreno, P.Sarriguren, R.Alvarez-Rodriguez, E.Moya de Guerra

β-decay in neutron-deficient Hg, Pb, and Po isotopes

RADIOACTIVITY 180,182,184,186,188,190,192Hg, 184,186,188,190,192,194Pb, 198,200,202,204,206Po(β+), (EC); calculated Gamow-Teller strength distributions, T1/2, deformation effects. Self-consistent deformed mean-field approach.

doi: 10.1103/PhysRevC.73.054302
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2006MO34      Phys.Rev. C 74, 054308 (2006)

O.Moreno, R.Alvarez-Rodriguez, P.Sarriguren, E.Moya de Guerra, J.M.Udias, J.R.Vignote

Gamow-Teller strength distributions in Xe isotopes

NUCLEAR STRUCTURE 124,126,128,130,132,134,136,138,140,142Xe; calculated deformation and pairing parameters, Gamow-Teller strength distributions. Self-consistent microscopic formalism.

doi: 10.1103/PhysRevC.74.054308
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2006SA45      Int.J.Mod.Phys. E15, 1397 (2006)

P.Sarriguren, R.Alvarez-Rodriguez, O.Moreno, E.Moya de Guerra

The Gamow-Teller response in deformed nuclei

NUCLEAR STRUCTURE 74Kr, 76Sr, 96Zr, 150Nd, 150Sm, 192Pb; calculated Gamow-Teller strength distributions. 184,186,188,190,192,194Pb; calculated energy vs deformation. 64,66Ge, 68,70Se, 72,74Kr, 76,78Sr, 80,82Zr, 84,86Mo, 88,90Ru, 92,94Pd; calculated T1/2.

doi: 10.1142/S0218301306004958
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2005AL19      Phys.Rev. C 71, 044308 (2005)

R.Alvarez-Rodriguez, E.Moya de Guerra, P.Sarriguren

Isospin mixing and Fermi transitions: Self-consistent deformed mean field calculations and beyond

NUCLEAR STRUCTURE 70,72,74,76,78Kr; calculated Fermi and Gamow-Teller strength distributions, isospin mixing parameters, Coulomb effects. Self-consistent deformed mean field approach.

doi: 10.1103/PhysRevC.71.044308
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2005AN05      Phys.Rev. C 71, 014317 (2005)

A.N.Antonov, M.K.Gaidarov, M.V.Ivanov, D.N.Kadrev, E.Moya de Guerra, P.Sarriguren, J.M.Udias

Superscaling, scaling functions, and nucleon momentum distributions in nuclei

NUCLEAR STRUCTURE 4He, 12C, 27Al, 56Fe, 197Au; calculated electron-scattering scaling functions, nucleon momentum distributions.

doi: 10.1103/PhysRevC.71.014317
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2005AN29      Phys.Rev. C 72, 044307 (2005)

A.N.Antonov, D.N.Kadrev, M.K.Gaidarov, E.Moya de Guerra, P.Sarriguren, J.M.Udias, V.K.Lukyanov, E.V.Zemlyanaya, G.Z.Krumova

Charge and matter distributions and form factors of light, medium, and heavy neutron-rich nuclei

NUCLEAR STRUCTURE 4,6,8He, 6,11Li, 56,58,62,74Ni, 82,92,94Kr, 116,118,126,132Sn; calculated particle densities, radii, charge form factors, diffuseness parameters. PWBA, DWBA, large-scale shell model and deformed self-consistent mean-field calculations. Comparisons with data.

doi: 10.1103/PhysRevC.72.044307
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2005SA25      Eur.Phys.J. A 24, 193 (2005)

P.Sarriguren, R.Alvarez-Rodriguez, E.Moya de Guerra

Half-lives of rp-process waiting point nuclei

NUCLEAR STRUCTURE 64Ge, 68Se, 72Kr, 76Sr, 80Zr, 84Mo, 88Ru, 92Pd; calculated radii, deformation, β-decay T1/2. Dependence of half-life on deformation and residual interaction strength discussed. Quasiparticle RPA, self-consistent mean field.

doi: 10.1140/epja/i2004-10146-1
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2005SA60      Phys.Rev. C 72, 054317 (2005)

P.Sarriguren, O.Moreno, R.Alvarez-Rodriguez, E.Moya de Guerra

Nuclear shape dependence of Gamow-Teller distributions in neutron-deficient Pb isotopes

NUCLEAR STRUCTURE 184,186,188,190,192,194Pb; calculated Gamow-Teller strength distributions, deformation dependence. Selfconsistent Skyrme-Hartree-Fock calculations, deformed quasiparticle RPA.

doi: 10.1103/PhysRevC.72.054317
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2005ZA04      Phys.Rev. C 71, 034317 (2005)

L.Zamick, A.Escuderos, S.J.Lee, A.Z.Mekjian, E.Moya de Guerra, A.A.Raduta, P.Sarriguren

Expressions for the number of J=0 pairs in even-even Ti isotopes

NUCLEAR STRUCTURE 44,46,48Ti; calculated number of nucleon pairs vs angular momentum, effect of nucleon-nucleon interaction.

doi: 10.1103/PhysRevC.71.034317
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2004AL36      Phys.Rev. C 70, 064309 (2004)

R.Alvarez-Rodriguez, P.Sarriguren, E.Moya de Guerra, L.Pacearescu, A.Faessler, F.Simkovic

Deformed quasiparticle random phase approximation formalism for single- and two-neutrino double β decay

NUCLEAR STRUCTURE 48Ca, 48Ti, 76Ge, 76,82Se, 82Kr, 96Zr, 96,100Mo, 100Ru, 116Cd, 116Sn, 128,130Te, 128,130,136Xe, 136Ba, 150Nd, 150Sm; calculated pairing energies, deformation, Gamow-Teller strength distributions, 2β-decay matrix elements and Q-values. Deformed quasiparticle RPA approach.

doi: 10.1103/PhysRevC.70.064309
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2004NA16      Phys.Rev.Lett. 92, 232501 (2004)

E.Nacher, A.Algora, B.Rubio, J.L.Tain, D.Cano-Ott, S.Courtin, Ph.Dessagne, F.Marechal, Ch.Miehe, E.Poirier, M.J.G.Borge, D.Escrig, A.Jungclaus, P.Sarriguren, O.Tengblad, W.Gelletly, L.M.Fraile, G.Le Scornet

Deformation of the N = Z Nucleus 76Sr using β-Decay Studies

RADIOACTIVITY 76Sr(EC), (β+) [from Nb(p, X)]; measured Eγ, Iγ, Eβ, Iβ; deduced B(GT). 76Sr deduced ground-state deformation. Total absorption gamma spectrometer, quasi-RPA calculation.

doi: 10.1103/PhysRevLett.92.232501
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2004PO08      Phys.Rev. C 69, 034307 (2004)

E.Poirier, F.Marechal, Ph.Dessagne, A.Algora, M.J.G.Borge, D.Cano-Ott, J.C.Caspar, S.Courtin, J.Devin, L.M.Fraile, W.Gelletly, G.Heitz, A.Jungclaus, G.Le Scornet, Ch.Miehe, E.Nacher, B.Rubio, P.Sarriguren, J.L.Tain, O.Tengblad, C.Weber, and the ISOLDE Collaboration

B(GT) strength from β-decay measurements and inferred shape mixing in 74Kr

RADIOACTIVITY 74Kr(β+), (EC) [from Nb(p, X)]; measured Eβ, Eγ, βγ-coin; deduced Gamow-Teller strength distribution. 74Br levels deduced β-branching ratios. 74Kr deduced ground-state shape mixing. Total-absorption gamma spectrometer.

doi: 10.1103/PhysRevC.69.034307
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