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NSR database version of April 11, 2024.

Search: Author = J.Retamosa

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2012MU15      J.Phys.:Conf.Ser. 381, 012031 (2012)

L.Munoz, C.Fernandez-Ramirez, A.Relano, J.Retamosa

Chaos in hadrons

doi: 10.1088/1742-6596/381/1/012031
Citations: PlumX Metrics

2005MO19      Phys.Rev. C 71, 064317 (2005)

R.A.Molina, A.P.Zuker, A.Relano, J.Retamosa

Spectral statistics of Hamiltonian matrices in tridiagonal form

doi: 10.1103/PhysRevC.71.064317
Citations: PlumX Metrics

2004GO30      Phys.Rev. C 69, 057302 (2004)

J.M.G.Gomez, K.Kar, V.K.B.Kota, R.A.Molina, J.Retamosa

Number of principal components and localization length in E2 and M1 transition strengths in ⁴⁶V

NUCLEAR STRUCTURE ⁴⁶V; calculated E2 and M1 transition strengths, number of principal components. Embedded Gaussian orthogonal random matrix ensemble.

doi: 10.1103/PhysRevC.69.057302
Citations: PlumX Metrics

2003GO16      Phys.Lett. B 567, 251 (2003)

J.M.G.Gomez, K.Kar, V.K.B.Kota, R.A.Molina, J.Retamosa

Localization in 2p1f nuclear shell-model wavefunctions

NUCLEAR STRUCTURE ^48,50,52Ca, ^46,48,50Sc, ⁴⁶Ti; calculated localization lengths for shell-model wavefunctions; deduced isospin dependence in onset of nuclear chaos. Embedded Gaussian orthogonal ensemble.

doi: 10.1016/j.physletb.2003.06.041
Citations: PlumX Metrics

2001GO37      Phys.Rev. C64, 034305 (2001)

J.M.G.Gomez, K.Kar, V.K.B.Kota, J.Retamosa, R.Sahu

Transition Strengths and Quantum Chaos in Large Shell-Model Spaces

NUCLEAR STRUCTURE ³⁶Ne, ³⁶Na, ³⁶Mg, ⁴⁶Ti, ^48,52Sc; calculated E2, M1, and Gamow-Teller transition strength sums vs excitation energy. Shell model, comparison with embedded Gaussian orthogonal ensemble predictions.

doi: 10.1103/PhysRevC.64.034305
Citations: PlumX Metrics

2001MO01      Phys.Rev. C63, 014311 (2001)

R.A.Molina, J.M.G.Gomez, J.Retamosa

Energy and Isospin Dependence of Nuclear Chaos

NUCLEAR STRUCTURE ^46,48,50,52Ca, ^46,48,50,52Sc, ⁴⁶Ti; calculated level spacing distributions; deduced isospin dependence for nuclear chaoticity. Shell model.

doi: 10.1103/PhysRevC.63.014311
Citations: PlumX Metrics

2000GO14      Phys.Lett. 480B, 245 (2000)

J.M.G.Gomez, K.Kar, V.R.Manfredi, R.A.Molina, J.Retamosa

Statistical Theory versus Shell Model in a Large pf Configuration Space

NUCLEAR STRUCTURE ⁴⁶V, ⁵⁰Sc; calculated transition strength distributions. Comparison of shell model, statistical model.

doi: 10.1016/S0370-2693(00)00414-7
Citations: PlumX Metrics

1999CA12      Phys.Rev. C59, 2033 (1999)

E.Caurier, G.Martinez-Pinedo, F.Nowacki, A.Poves, J.Retamosa, A.P.Zuker

Full 0(h-bar)ω Shell Model Calculation of the Binding Energies of the 1f_7/2 Nuclei

NUCLEAR STRUCTURE ^{42,43,44,45,46,47,48}Ca, ^{42,43,44,45,46,47,48,49}Sc, ^{42,43,44,45,46,47,48,49,50}Ti, ^{43,44,45,46,47,48,49,50,51}V, ^{44,45,46,47,48,49,50,51,52}Cr, ^{45,46,47,48,49,50,51}Mn, ^{46,47,48,49,50,51,52,54}Fe, ^{48,49,50,51,54}Co, ^{50,51,52,54,56}Ni; calculated binding energies, M1, E2, Gamow-Teller sum rules. Shell model, quasispin formalism.

doi: 10.1103/PhysRevC.59.2033
Citations: PlumX Metrics

1999CA60      Nucl.Phys. (Supplement) A654, 747c (1999)

E.Caurier, F.Nowacki, A.P.Zuker, G.Martinez-Pinedo, A.Poves, J.Retamosa

Large Scale Diagonalizations in the pf Shell: Achievements and perspectives

NUCLEAR STRUCTURE ^48,50Cr; calculated levels, J, π. Shell model, comparison with data and with Hartree-Fock-Bogolyubov results. ^58,60Ni; calculated level densities vs excitation energy. Shell model, comparison with data.

doi: 10.1016/S0375-9474(00)88541-3
Citations: PlumX Metrics

1999CA62      Nucl.Phys. (Supplement) A654, 973c (1999)

E.Caurier, F.Nowacki, A.Poves, J.Retamosa

Shell Model Study of the Neutrinoless Double Beta Decays

RADIOACTIVITY ⁴⁸Ca, ⁷⁶Ge, ⁸²Se, ¹²⁴Sn, ^128,130Te, ¹³⁶Xe(2β^-); calculated 2ν-accompanied 2β-decay T_1/2, 0ν-accomanied 2β-decay matrix elements. Large-scale shell model calculations.

doi: 10.1016/S0375-9474(00)88583-8
Citations: PlumX Metrics

1999KO48      Phys.Rev. C60, 051306 (1999)

V.K.B.Kota, R.Sahu, K.Kar, J.M.G.Gomez, J.Retamosa

Transition Strength Sums and Quantum Chaos

doi: 10.1103/PhysRevC.60.051306
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1998CA40      Phys.Rev. C58, 2033 (1998)

E.Caurier, F.Nowacki, A.Poves, J.Retamosa

Shell Model Study of the Neutron Rich Isotopes from Oxygen to Silicon

NUCLEAR STRUCTURE Z=8-13; calculated neutron-rich nuclei 2⁺ levels, B(E2), one-, two-neutron separation energies, intruder states features. Shell model calculations.

doi: 10.1103/PhysRevC.58.2033
Citations: PlumX Metrics

1998VO12      Phys.Lett. 443B, 1 (1998)

P.von Neumann-Cosel, A.Poves, J.Retamosa, A.Richter

Magnetic Dipole Response in Nuclei at the N = 28 Shell Closure: A new look

NUCLEAR STRUCTURE ⁴⁸Ca, ⁵⁰Ti, ⁵²Cr, ⁵⁴Fe; calculated magnetic dipole response, B(M1) distributions; deduced spin quenching factors. Shell-model calculations.

doi: 10.1016/S0370-2693(98)01298-2
Citations: PlumX Metrics

1997RE04      Phys.Rev. C55, 1266 (1997)

J.Retamosa, E.Caurier, F.Nowacki, A.Poves

Shell Model Study of the Neutron-Rich Nuclei Around N = 28

NUCLEAR STRUCTURE ^40,41,42K, ^42,39,40,41Ar, ³⁸Cl; calculated levels. ^44,46Ar, ^38,40,42,44S; calculated total Gamow-Teller strength, B(λ) in some cases, β-decay T_1/2. Z=14-20; N=16-30; calculated two-neutron separation energies. ^40,42S deduced deformation β. ^{36,38,40,42,44}Si, ^{38,40,42,44,46}S, ^{40,42,44,46,48}Ar, ^{42,44,46,48,50}Ca, ^{44,46,48,50,52}Ti, ^{46,48,50,52,54}Cr; calculated 2⁺ levels. Shell model.

doi: 10.1103/PhysRevC.55.1266
Citations: PlumX Metrics

1996CA35      Phys.Rev.Lett. 77, 1954 (1996)

E.Caurier, F.Nowacki, A.Poves, J.Retamosa

Shell Model Studies of the Double Beta Decays of ⁷⁶Ge, ⁸²Se, and ¹³⁶Xe

RADIOACTIVITY ⁷⁶Ge, ⁸²Se, ¹³⁶Xe(2β); calculated 0ν-accompanied 2β-decay T_1/2 lower limits. Large shell model space.

doi: 10.1103/PhysRevLett.77.1954
Citations: PlumX Metrics

1996MA56      Phys.Rev. C54, R2150 (1996)

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

Backbending in ⁵⁰Cr

NUCLEAR STRUCTURE ⁵⁰Cr; analyzed collective yrast, high-spin states; deduced backbending features. Spherical shell model, cranked HFB method.

doi: 10.1103/PhysRevC.54.R2150
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1996RA21      Phys.Rev.Lett. 76, 2642 (1996)

P.B.Radha, D.J.Dean, S.E.Koonin, T.T.S.Kuo, K.Langanke, A.Poves, J.Retamosa, P.Vogel

Shell Model Monte Carlo Method for Two-Neutrino Double Beta Decay

NUCLEAR STRUCTURE ⁴⁸Ca, ⁷⁶Ge(2β); calculated 2ν-accompanied 2β-decay matrix element vs temperature. Shell model Monte Carlo techniques.

doi: 10.1103/PhysRevLett.76.2642
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1995CA33      Phys.Rev.Lett. 75, 2466 (1995)

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

Intrinsic vs Laboratory Frame Description of the Deformed Nucleus ⁴⁸Cr

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

doi: 10.1103/PhysRevLett.75.2466
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1995RE01      Phys.Rev. C51, 371 (1995)

J.Retamosa, E.Caurier, F.Nowacki

Neutrinoless Double Beta Decay of ⁴⁸Ca

RADIOACTIVITY ⁴⁸Ca(2β); calculated 0ν-accompanied 2β-decay T_1/2. Shell model, recoil terms in hadronic currents.

doi: 10.1103/PhysRevC.51.371
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1995ZU02      Phys.Rev. C52, R1741 (1995)

A.P.Zuker, J.Retamosa, A.Poves, E.Caurier

Spherical Shell Model Description of Rotational Motion

NUCLEAR STRUCTURE ^{152,154,156,158}Nd, ^{154,156,158,160}Sm, ^{156,158,160,162}Gd, ^{158,160,162,164}Dy; calculated B(E2). Spherical shell model.

doi: 10.1103/PhysRevC.52.R1741
Citations: PlumX Metrics

1994PO05      Nucl.Phys. A571, 221 (1994)

A.Poves, J.Retamosa

Theoretical Study of the Very Neutron-Rich Nuclei Around N = 20

NUCLEAR STRUCTURE ²⁸O, ³⁴Si, ³⁰Ne, ³²Mg; calculated intruder levels, B(λ), quadrupole moments. ^27,28,29,30O, ^28,29,30,31F, ^29,30,31,32Ne, ^30,31,32,33Na, ^31,32,33,34Mg, ^32,33,34,35Al, ^33,34,35,36Si; calculated levels, binding energies. Shell model.

doi: 10.1016/0375-9474(94)90058-2
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1994PO34      Z.Phys. A347, 227 (1994)

A.Poves, J.Retamosa, M.J.G.Borge, O.Tengblad

Halo Signals in the Beta Decay of ²⁸O

RADIOACTIVITY ²⁸O(β^-); calculated Gamow-Teller β-decay strength function. Shell model.

doi: 10.1007/BF01289788
Citations: PlumX Metrics

1993KL02      Phys.Rev. C47, 2502 (1993)

G.Klotz, P.Baumann, M.Bounajma, A.Huck, A.Knipper, G.Walter, G.Marguier, C.Richard-Serre, A.Poves, J.Retamosa

Beta Decay of ^31,32Na and ³¹Mg: Study of the N = 20 shell closure

RADIOACTIVITY ^31,32Na, ³¹Mg(β^-n) [from U(p, X), E=600 MeV]; measured Eγ, Iγ, γγ-, nγ-coin, Iβ; deduced log ft. ^31,32Mg, ³¹Al deduced levels, J, π. ³²Al deduced γ-cascade evidence.

doi: 10.1103/PhysRevC.47.2502
Citations: PlumX Metrics

1992TE03      Z.Phys. A342, 303 (1992)

O.Tengblad, M.J.G.Borge, L.Johannsen, B.Jonson, M.Lindroos, T.Nilsson, G.Nyman, A.Poves, H.L.Ravn, J.Retamosa, K.Riisager, P.Sona, K.Wilhelmsen, and the ISOLDE Collaboration

Study of Neutron Rich Neon Isotopes

RADIOACTIVITY ^26,27,28,29Ne(β^-n) [from Th(³He, X), E=910 MeV]; measured Iβ, T_1/2, neutron emission probabilities. Shell model analysis.

doi: 10.1007/BF01291514
Citations: PlumX Metrics

1991DU05      Phys.Rev. C44, 2872 (1991)

J.Dukelsky, A.Poves, J.Retamosa

Phase Transitions in Light Nuclei

NUCLEAR STRUCTURE ²⁰Ne; calculated intrinsic quadrupole moment expectation value, specific heat vs temperature; deduced phase transition features. SU(3) Elliott model.

doi: 10.1103/PhysRevC.44.2872
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1990RE06      Nucl.Phys. A511, 221 (1990)

J.Retamosa, J.M.Udias, A.Poves, E.Moya de Guerra

1⁺ Excitations in Light Nuclei: SU(3) versus realistic shell model results

NUCLEAR STRUCTURE ^20,22Ne, ²⁴Mg, ⁴⁴Ti; calculated levels, B(λ), form factor. Shell model.

doi: 10.1016/0375-9474(90)90157-H
Citations: PlumX Metrics

1989BA50      Phys.Lett. 228B, 458 (1989)

P.Baumann, A.Huck, G.Klotz, A.Knipper, G.Walter, G.Marguier, H.L.Ravn, C.Richard-Serre, A.Poves, J.Retamosa

³⁴Si: A new doubly magic nucleus ( Question )

RADIOACTIVITY ³⁴Al(β^-) [from U(p, X), E=600 MeV]; measured βγγ-coin, Eγ, Iγ; deduced log ft, neutron emission probability. ³⁴Al level deduced J, π. ³⁴Si deduced levels, J, π, γ-branching ratios.

doi: 10.1016/0370-2693(89)90974-X
Citations: PlumX Metrics

1989PO04      Phys.Rev. C39, 1639 (1989)

A.Poves, J.Retamosa, E.Moya de Guerra

Shell-Model Realization of the Scissors Mode

NUCLEAR STRUCTURE ²⁰Ne; calculated levels, B(M1), quadrupole moment ratio. Realistic shell model, SU(3) limit.

doi: 10.1103/PhysRevC.39.1639
Citations: PlumX Metrics

1987PO01      Phys.Lett. 184B, 311 (1987)

A.Poves, J.Retamosa

The Onset of Deformation at the N = 20 Neutron Shell Closure far from Stability

NUCLEAR STRUCTURE ^20,21O, ^20,21F, ^{18,19,20,21,22}Ne, ^{18,19,20,21,22}Na, ^{18,19,20,21,22}Mg, ^20,21Al, ^20,21Si; calculated ground state spins, percentages, centroid, correlation energies; ³⁰Ne, ³²Mg; calculated yrast states energies, J, π, B(E2); Na, Mg; calculated binding energies; ³¹Na, ³²Mg; calculated levels, J, π; deduced deformation onset mass dependence. Shell model.

doi: 10.1016/0370-2693(87)90171-7
Citations: PlumX Metrics