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NSR database version of May 24, 2024.

Search: Author = M.Lopez-Quelle

Found 31 matches.

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2024MA09      Eur.Phys.J. A 60, (2024)

S.Marcos, R.Niembro, M.Lopez-Quelle

Relativistic effects on the kink of nuclear charge radii in lead

NUCLEAR STRUCTURE 202,204,206,208,210,212,214Pb; calculated the nuclear charge radii of lead isotopes in the relativistic mean field approximation framework, using the parameter set NL3*; deduced the small component of the single-particle Dirac spinors plays an essential role in the kink formation through its effects on the single-particle central potential.

doi: 10.1140/epja/s10050-024-01304-8
Citations: PlumX Metrics


2018LO05      Nucl.Phys. A971, 149 (2018)

M.Lopez-Quelle, S.Marcos, R.Niembro, L.N.Savushkin

Tensor force effect on the evolution of single-particle energies in some isotopic chains in the relativistic Hartree-Fock approximation

NUCLEAR STRUCTURE 40,42,44,46,48Ca;116,118,120,122,124,126,128,130,132Sn; calculated sp energy, J of orbitals in the SO (Spin-Orbit) and PSO (Pseudo-Spin Orbit) doublets using nonlinear self-consistent relativistic Hartree-Fock approximation combined with BCS, with and without pairing correlations; deduced mutual dependence on the evolution of the shell closure gap Z=50, pairing correlations playing in opposite direction of the tensor term of one-pion-exchange force.

doi: 10.1016/j.nuclphysa.2018.01.012
Citations: PlumX Metrics


2012MA61      Phys.Atomic Nuclei 75, 1486 (2012)

S.Marcos, M.Lopez-Quelle, R.Niembro, L.N.Savushkin

Nuclear relativistic hartree-fock approximation with effective pions

NUCLEAR STRUCTURE 208Pb, 132Sn, 90Zr, 48Ca, 22O; calculated level energies, J, π; deduced πN PS coupling. Shell model calculations. Comparison with available data.

doi: 10.1134/S1063778812110166
Citations: PlumX Metrics


2012NI07      Phys.Atomic Nuclei 75, 269 (2012)

R.Niembro, S.Marcos, M.Lopez-Quelle, L.N.Savushkin

Isotopic dependence of the nuclear charge radii and binding energies in the relativistic Hartree-Fock formalism

NUCLEAR STRUCTURE 16O, 40,48Ca, 84Sr, 116,124,132Sn, 204,208,214Pb; calculated nuclear charge radius, energy per nucleon, isotopic evolution of charge radii. Relativistic nonlinear models, Hartree and Hartree-Fock approximations.

doi: 10.1134/S1063778812020159
Citations: PlumX Metrics


2008MA40      Eur.Phys.J. A 37, 251 (2008)

S.Marcos, M.Lopez-Quelle, R.Niembro, L.N.Savushkin

Pseudospin symmetry as an accidental symmetry in the relativistic framework

NUCLEAR STRUCTURE 40Ca, 208Pb; calculated pseudospin doublets energies, configurations, related features using relativistic framework of the Dirac equation.

doi: 10.1140/epja/i2008-10619-1
Citations: PlumX Metrics


2007MA93      Eur.Phys.J. A 34, 429 (2007)

S.Marcos, M.Lopez-Quelle, R.Niembro, L.N.Savushkin

Pseudospin symmetry in the Dirac phenomenology

doi: 10.1140/epja/i2007-10515-2
Citations: PlumX Metrics


2006SA31      Phys.Atomic Nuclei 69, 1233 (2006)

L.N.Savushkin, S.Marcos, M.Lopez-Quelle, R.Niembro

Pseudospin Symmetry in Finite Nuclei

doi: 10.1134/S1063778806070222
Citations: PlumX Metrics


2005LO11      J.Phys.(London) G31, S1911 (2005)

M.Lopez-Quelle, L.N.Savushkin, S.Marcos, R.Niembro

Pseudospin symmetry in finite nuclei within the relativistic Hartree-Fock framework

NUCLEAR STRUCTURE 208Pb; calculated pseudospin doublets energies, configurations, related features. Relativistic Hartree-Fock framework.

doi: 10.1088/0954-3899/31/10/100
Citations: PlumX Metrics


2005MA82      J.Phys.(London) G31, S1551 (2005)

S.Marcos, M.Lopez-Quelle, R.Niembro, L.N.Savushkin

The pseudospin symmetry in atomic nuclei

NUCLEAR STRUCTURE 208Pb; calculated pseudospin doublet energies, related features. Relativistic mean-field framework.

doi: 10.1088/0954-3899/31/10/030
Citations: PlumX Metrics


2005MB03      Eur.Phys.J. A 26, 253 (2005)

S.Marcos, V.N.Fomenko, M.Lopez-Quelle, R.Niembro, L.N.Savushkin

The spin and pseudospin symmetries in the relativistic formalism: Similarities and differences

NUCLEAR STRUCTURE 40Ca; calculated neutron wave functions, role of spin and pseudospin symmetries, symmetry breaking effects.

doi: 10.1140/epja/i2005-10177-0
Citations: PlumX Metrics


2004MA40      J.Phys.(London) G30, 703 (2004)

S.Marcos, L.N.Savushkin, V.N.Fomenko, M.Lopez-Quelle, R.Niembro

Description of nuclear systems within the relativistic Hartree-Fock method with zero-range self-interactions of the scalar field

NUCLEAR STRUCTURE 16O, 40,48Ca, 90Zr, 208Pb; calculated binding energies, radii, charge distributions, single-particle energy levels. Hartree-Fock method, zero-range self-interactions.

doi: 10.1088/0954-3899/30/6/002
Citations: PlumX Metrics


2004MA45      Eur.Phys.J. A 20, 443 (2004)

S.Marcos, M.Lopez-Quelle, R.Niembro, L.N.Savushkin

Origin of the pseudospin symmetry in the relativistic formalism

NUCLEAR STRUCTURE 40Ca, 208Pb; calculated wave functions, pseudospin symmetry features. Extended Dirac equation.

doi: 10.1140/epja/i2003-10160-9
Citations: PlumX Metrics


2003LO12      Nucl.Phys. A727, 269 (2003)

M.Lopez-Quelle, L.N.Savushkin, S.Marcos, P.Bernardos, R.Niembro

Pseudo-spin-orbit potential in the relativistic Hartree-Fock formalism

NUCLEAR STRUCTURE 40,48Ca; calculated pseudo-spin-orbit potentials, wave functions. Relativistic Hartree-Fock approximation.

doi: 10.1016/j.nuclphysa.2003.07.012
Citations: PlumX Metrics


2003MA21      Eur.Phys.J. A 17, 173 (2003)

S.Marcos, M.Lopez-Quelle, R.Niembro, L.N.Savushkin, P.Bernardos

Reliability of the pseudospin symmetry in atomic nuclei

NUCLEAR STRUCTURE 40Ca; calculated single-particle energies, pseudospin symmetry features.

doi: 10.1140/epja/i2002-10150-5
Citations: PlumX Metrics


2001BE03      J.Phys.(London) G27, 147 (2001)

P.Bernardos, V.N.Fomenko, S.Marcos, R.Niembro, M.Lopez-Quelle, L.N.Savushkin

Application of an Effective Gauge-Invariant MOdel to Nuclear Matter in the Relativistic Hartree-Fock Approximation

doi: 10.1088/0954-3899/27/2/301
Citations: PlumX Metrics


2001MA49      Phys.Lett. 507B, 135 (2001)

S.Marcos, L.N.Savushkin, M.Lopez-Quelle, R.Niembro, P.Bernardos

On the Relativistic Origin of the Kink Effect in the Chain of Pb Isotopes

NUCLEAR STRUCTURE 206,208,210Pb; calculated charge radii; deduced kink effect mechanism. Relativistic mean field theory.

doi: 10.1016/S0370-2693(01)00460-9
Citations: PlumX Metrics


2001MA65      Phys.Lett. 513B, 30 (2001)

S.Marcos, M.Lopez-Quelle, R.Niembro, L.N.Savushkin, P.Bernardos

On the Sufficient Conditions for the Pseudospin Symmetry in Relativistic Models

NUCLEAR STRUCTURE 40Ca, 208Pb; calculated single-particle energies, effect of pseudospin symmetry breaking term. Relativistic Hartree approximation.

doi: 10.1016/S0370-2693(01)00737-7
Citations: PlumX Metrics


2001NI14      Phys.Rev. C64, 055802 (2001)

R.Niembro, P.Bernardos, M.Lopez-Quelle, S.Marcos

Neutrino Cross Section and Mean Free Path in Neutron Stars in the Framework of the Dirac-Hartree-Fock Approximation

doi: 10.1103/PhysRevC.64.055802
Citations: PlumX Metrics


2000BE34      Phys.Rev. C62, 024314 (2000)

P.Bernardos, R.J.Lombard, M.Lopez-Quelle, S.Marcos, R.Niembro

Derivative Coupling Model Description of Nuclear Matter in the Dirac-Hartree-Fock Approximation

doi: 10.1103/PhysRevC.62.024314
Citations: PlumX Metrics


2000LO07      Phys.Rev. C61, 064321 (2000)

M.Lopez-Quelle, N.Van Giai, S.Marcos, L.N.Savushkin

Spin-Orbit Splitting in Nonrelativistic and Relativistic Self-Consistent Models

NUCLEAR STRUCTURE O, Ca, Sn; calculated proton spin-orbit splitting vs mass. Relativistic and nonrelativistic mean field approaches, comparisons with data.

doi: 10.1103/PhysRevC.61.064321
Citations: PlumX Metrics


2000MA91      Phys.Rev. C62, 054309 (2000)

S.Marcos, L.N.Savushkin, M.Lopez-Quelle, P.Ring

Pseudo Spin-Orbit Potential in Relativistic Self-Consistent Models

NUCLEAR STRUCTURE 40Ca; calculated pseudo spin-orbit potential, level splitting; deduced role of scalar meson mass, compressibility modulus. Relativistic Hartree formalism.

doi: 10.1103/PhysRevC.62.054309
Citations: PlumX Metrics


1998NI14      J.Phys.(London) G24, 1945 (1998)

R.Niembro, V.N.Fomenko, L.N.Savushkin, M.Lopez-Quelle, S.Marcos, P.Bernardos

Nuclear Matter Calculations with a Pseudoscalar-Pseudovector Chiral Model

doi: 10.1088/0954-3899/24/10/010
Citations: PlumX Metrics


1997SA02      Phys.Rev. C55, 167 (1997)

L.N.Savushkin, S.Marcos, M.L.Quelle, P.Bernardos, V.N.Fomenko, R.Niembro

Effective Interaction for Relativistic Theory of Nuclear Structure

NUCLEAR STRUCTURE 16O, 40Ca; calculated single particle energies, binding energy per nucleon charge radii. Relativistic Hartree-Fock approach, relevant effective interaction.

doi: 10.1103/PhysRevC.55.167
Citations: PlumX Metrics


1996BE07      J.Phys.(London) G22, 361 (1996)

P.Bernardos, V.N.Fomenko, M.L.Quelle, S.Marcos, R.Niembro, L.N.Savushkin

Investigation of a σ + ω + ρ + a Chiral Model in a Relativistic Hartree-Fock Approximation to Asymmetric Nuclear Matter

doi: 10.1088/0954-3899/22/3/009
Citations: PlumX Metrics


1996MA30      Nucl.Phys. A600, 529 (1996)

S.Marcos, J.-F.Mathiot, M.Lopez-Quelle, R.Niembro, P.Bernardos

A Density-Dependent Effective Interaction for Relativistic Hartree-Fock Calculations

doi: 10.1016/0375-9474(95)00507-2
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1995BE48      Phys.Lett. 356B, 175 (1995)

P.Bernardos, S.Marcos, R.Niembro, M.L.Quelle

Magnetic Properties of Strongly Asymmetric Nuclear Matter in a Dirac-Hartree-Fock Approach

doi: 10.1016/0370-2693(95)00846-D
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1995FO07      J.Phys.(London) G21, 53 (1995)

V.N.Fomenko, L.N.Savushkin, S.Marcos, R.Niembro, M.L.Quelle

Investigations of the Scalar Field Self-Interactions Generated by a Chiral Model in the Hartree-Fock Approach to Nuclear Structure

NUCLEAR STRUCTURE 4He, 16O, 40,48Ca; calculated binding energy per nucleon, charge radius, charge density distributions (in some cases). Chiral model in Hartree-Fock approach, normal, abnormal solutions.

doi: 10.1088/0954-3899/21/1/007
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1995FO17      Yad.Fiz. 58, No 2, 258 (1995); Phys.Atomic Nuclei 58, 214 (1995)

V.N.Fomenko, L.N.Savushkin, S.Marcos, R.Niembro, M.L.Quelle

Investigations of Scalar-Field Self-Interactions Generated by a Chiral Model in the Hartree-Fock Approach to Nuclear Structure

NUCLEAR STRUCTURE 16O, 12C, 4He; calculated binding energy per nucleon, rms charge radius, other aspects; deduced exchange effects role in chiral theory.


1993BE47      Phys.Rev. C48, 2665 (1993)

P.Bernardos, V.N.Fomenko, V.G.Nguyen, M.L.Quelle, S.Marcos, R.Niembro, L.N.Savushkin

Relativistic Hartree-Fock Approximation in a Nonlinear Model for Nuclear Matter and Finite Nuclei

NUCLEAR STRUCTURE 16O, 90Zr, 40,48Ca, 208Pb; calculated charge distributions. Relativistic Hartree-Fock approximation, nonlinear model.

doi: 10.1103/PhysRevC.48.2665
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1991MA23      Phys.Lett. 257B, 5 (1991)

S.Marcos, M.Lopez-Quelle, Nguyen Van Giai

Finite Nuclei Calculations Using Dirac-Brueckner Self-Energies

NUCLEAR STRUCTURE 40Ca, 90Zr, 208Pb; calculated charge densities, nucleon single-particle spectra, nucleon, charge rms radii. Dirac-Brueckner Hartree-Fock theory, local density approximation.

doi: 10.1016/0370-2693(91)90848-K
Citations: PlumX Metrics


1988LO06      Nucl.Phys. A483, 479 (1988)

M.Lopez-Quelle, S.Marcos, R.Niembro, A.Bouyssy, Nguyen Van Giai

Asymmetric Nuclear Matter in the Relativistic Approach

NUCLEAR STRUCTURE 1n, 1H; calculated self energies, Fermi energy differences.

doi: 10.1016/0375-9474(88)90080-2
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Note: The following list of authors and aliases matches the search parameter M.Lopez-Quelle: , M.L.QUELLE