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NSR database version of April 27, 2024.

Search: Author = N.Benhamouda

Found 20 matches.

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2021GA18      Phys.Rev. C 103, 054311 (2021)

A.Gaamouci, I.Dedes, J.Dudek, A.Baran, N.Benhamouda, D.Curien, H.L.Wang, J.Yang

Exotic toroidal and superdeformed configurations in light atomic nuclei: Predictions using a mean-field Hamiltonian without parametric correlations

NUCLEAR STRUCTURE 28Si, 28,30,38,40Si, 32,40,42S, 36Ar, 40Ca, 44Ti, 48Cr, 56Ni, 52,56Fe, 82,84,100Zr; A≈30-50; calculated nuclear potential energy surfaces in (α20, α40) and (β2cos(γ+30°)), (β2sin(γ+30°)) planes using mean-field calculations in multidimensional deformation spaces with phenomenological Woods-Saxon Hamiltonian, Monte-Carlo Hamiltonian parameter adjustments based on doubly-magic spherical nuclei: 16O, 40Ca, 48Ca, 56Ni, 90Zr, 132Sn, 146Gd and 208Pb, parametric-correlation removal; tested parametric uncertainties, theoretical prediction uncertainty propagation with nucleon numbers; generated nuclear shape coexistence, low-energy toroidal shape excitations, superdeformed oblate and prolate shapes, exotic shapes and isomers. Comparison with available experimental information for deformation parameters.

doi: 10.1103/PhysRevC.103.054311
Citations: PlumX Metrics


2016KA18      Int.J.Mod.Phys. E25, 1650028 (2016)

H.Kadi, N.Benhamouda

Thermal two-neutron separation energy in the case of Erbium isotopes

NUCLEAR STRUCTURE 146,148,150,152,154,156,158,160,162,164,166,168,170,172,174,176Er; calculated deformation parameters, two-neutron separation energy using the finite temperature Bardeen Cooper Schrieffer (FTBCS) method, comparison with experimental data.

doi: 10.1142/S0218301316500282
Citations: PlumX Metrics


2016KA33      Int.J.Mod.Phys. E25, 1650052 (2016)

H.Kadi, N.Benhamouda

Thermal properties of the Tin odd isotopes 117, 119, 121Sn

NUCLEAR STRUCTURE 116,117,118,119,120,121,122Sn; calculated variation of entropy and average odd pairing gap, neutron single-particle energies, heat capacity.

doi: 10.1142/S021830131650052X
Citations: PlumX Metrics


2015KA44      Int.J.Mod.Phys. E24, 1550072 (2015)

H.Kadi, N.Benhamouda

Pairing phase transition in 106, 107, 108Pd

NUCLEAR STRUCTURE 106,107,108Pd; calculated thermal pairing gap, excitation energy as a function of temperature, nuclear level density as a function of excitation energy. Modified BCS (MBCS), finite temperature BCS (FTBCS) methods.

doi: 10.1142/S021830131550072X
Citations: PlumX Metrics


2013DO12      Int.J.Mod.Phys. E22, 1350029 (2013)

M.Douici, N.H.Allal, M.Fellah, N.Benhamouda, M.R.Oudih

Number-projected electric quadrupole moments of even-even proton-rich nuclei in the isovector pairing case

NUCLEAR STRUCTURE Z=16-56; calculated single-particle energies and eigen-states, ground-state electric quadrupole moments. Comparison with available data.

doi: 10.1142/S0218301313500298
Citations: PlumX Metrics


2013KA25      Int.J.Mod.Phys. E22, 1350024 (2013)

H.Kadi, N.Benhamouda, A.Haddouche

Effect of the statistical fluctuations in the pairing transition in the case of 166Er

NUCLEAR STRUCTURE 166Er; calculated S-shaped heat capacity, superfluid-to-normal phase transition in nuclei. Modified Bardeen-Cooper-Schrieffer (MBCS) approach, comparison with available data.

doi: 10.1142/S0218301313500249
Citations: PlumX Metrics


2013KA35      Int.J.Mod.Phys. E22, 350034 (2013)

H.Kadi, A.Haddouche, N.Benhamouda

Statistical and Quantal Effects on Pairing Phase Transition in the Case of Hot Even-Even Neutron-Rich Tin Isotopes

NUCLEAR STRUCTURE 118,120,122,124,126,128Sn; calculated thermal properties. Modified Lipkin-Nogami (MLN) approach that takes into account the thermal and quantal fluctuations.

doi: 10.1142/S0218301313500341
Citations: PlumX Metrics


2012DO04      Int.J.Mod.Phys. E21, 1250046 (2012)

M.Douici, N.H.Allal, M.Fellah, N.Benhamouda, M.R.Oudih

Effect of the particle-number symmetry restoration on root mean square radii of even-even neutron-deficient nuclei in the isovector pairing case

NUCLEAR STRUCTURE 32,34,36S, 36,38,40Ar, 40,42,44Ca, 44,46,48Ti, 48,50,52Cr, 52,54,56Fe, 56,58,60Ni, 60,62,64Zn, 64,66,68Ge, 68,70,72Se, 72,74,76Kr, 78,80,82Sr, 82,84,86Zr, 86,88,90Mo, 90,92,94Ru, 94,96,98Pd, 98,100,102Cd, 104,106Sn, 108,110Te, 112,114Xe, 118Ba; calculated rms proton and neutron radii. SBCS (Sharp BCS) method, comparison with available data.

doi: 10.1142/S0218301312500462
Citations: PlumX Metrics


2011AM04      Int.J.Mod.Phys. E20, 1947 (2011)

I.Ami, M.Fellah, N.H.Allal, N.Benhamouda, M.Belabbas, M.R.Oudih

Isovector pairing effect on nuclear moment of inertia at finite temperature in N = Z even-even systems

NUCLEAR STRUCTURE 60Zn, 64Ge, 68Se, 72Kr, 76Sr; calculated moment of inertia as a function of temperature. Richardson model, deformed Woods-Saxon mean-field.

doi: 10.1142/S0218301311019519
Citations: PlumX Metrics


2010BE26      Int.J.Mod.Phys. E19, 1973 (2010)

M.Belabbas, M.Fellah, N.H.Allal, N.Benhamouda, I.Ami, M.R.Oudih

Influence of the isovector pairing effect on nuclear statistical quantities in N ≈ Z even-even systems

NUCLEAR STRUCTURE 36Ar, 48Cr, 52Fe, 64Ge; calculated gap parameters, the energy, the entropy and the heat capacity. FTBCS model.

doi: 10.1142/S0218301310016454
Citations: PlumX Metrics


2010OU01      Nucl.Phys. A834, 479c (2010)

M.R.Oudih, M.Fellah, N.H.Allal, N.Benhamouda

Systematic study of neutron-rich Molybdenum isotopes

NUCLEAR STRUCTURE 94,96,98,100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130Mo; calculated two-neutron separation energy, radii, deformation, related features. Comparison with data.

doi: 10.1016/j.nuclphysa.2010.01.070
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2008AL13      Phys.Rev. C 77, 054310 (2008)

N.H.Allal, M.Fellah, N.Benhamouda, M.R.Oudih

Temperature-dependent particle-number projected moment of inertia

NUCLEAR STRUCTURE 226Ra, 230Th, 240Pu, 246Cm, 248Cf; calculated dependence of moment of inertia on temperature, occupation probabilities. Discrete projection method. Deformed Woods-Saxon mean field calculations.

doi: 10.1103/PhysRevC.77.054310
Citations: PlumX Metrics


2008BE27      Int.J.Mod.Phys. E17, 1357 (2008)

N.Benhamouda, N.H.Allal, M.Fellah, M.R.Oudih

Number projected two-neutron separation energy in the neutron-rich rare-earth region

NUCLEAR STRUCTURE Nd, Sm, Gd, Dy, Er, Yb; N=78-114; calculated two-neutron separation energies; deduced shell closure features; microscopic model including pairing effects; particle number projection.

doi: 10.1142/S0218301308010490
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2007FE18      Phys.Rev. C 76, 047306 (2007)

M.Fellah, N.H.Allal, M.Belabbas, M.R.Oudih, N.Benhamouda

Temperature-dependent isovector pairing gap equations using a path integral approach

doi: 10.1103/PhysRevC.76.047306
Citations: PlumX Metrics


2007OU03      Phys.Rev. C 76, 047307 (2007)

M.R.Oudih, M.Fellah, N.H.Allal, N.Benhamouda

Projection techniques as methods of particle-number symmetry restoration

doi: 10.1103/PhysRevC.76.047307
Citations: PlumX Metrics


2006AL22      Eur.Phys.J. A 27, Supplement 1, 301 (2006)

N.H.Allal, M.Fellah, M.R.Oudih, N.Benhamouda

Effects of the particle-number projection on the isovector pairing energy

NUCLEAR STRUCTURE 32S, 36Ar, 40Ca, 44Ti, 48Cr, 52Fe, 56Ni, 60Zn, 64Ge; calculated wave functions, effects of isovector pairing correlations, particle-number fluctuation effects.

doi: 10.1140/epja/i2006-08-046-1
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2006OU01      Int.J.Mod.Phys. E15, 643 (2006)

M.R.Oudih, M.Fellah, N.H.Allal, N.Benhamouda

Quantum number projections of nuclear deformed states

NUCLEAR STRUCTURE 152Sm, 164Er, 170Yb, 182Hf; calculated pairing energy vs deformation, angular momentum probability distributions, rotational bands level energies. Sm, Gd, Dy, Er, Yb, Hf; calculated rotational bands moments of inertia. Exact particle-number projection.

doi: 10.1142/S0218301306004016
Citations: PlumX Metrics


2005BE35      Int.J.Mod.Phys. E14, 197 (2005)

N.Benhamouda, N.H.Allal, M.Fellah, M.R.Oudih

Nuclear shape properties of the even-even neutron-rich rare-earth nuclei

NUCLEAR STRUCTURE 158Sm, 164Er; calculated pairing energy vs deformation. Nd, Sm, Gd, Dy, Er, Yb; calculated radii, isotopic shifts, quadrupole and hexadecapole moments for even-even isotopes.

doi: 10.1142/S0218301305002965
Citations: PlumX Metrics


2004BE32      Acta Phys.Hung.N.S. 19, 191 (2004)

N.Benhamouda, M.R.Oudih, N.H.Allal, M.Fellah

Nuclear Properties of the Neutron-Deficient Nuclei Near the Shell Closure

NUCLEAR STRUCTURE Yb; calculated two-neutron separation energies, isotopic shifts in radii for even-even isotopes.

doi: 10.1556/APH.19.2004.3-4.3
Citations: PlumX Metrics


2001BE39      Nucl.Phys. A690, 219c (2001)

N.Benhamouda, M.R.Oudih, N.H.Allal, M.Fellah

Electric Quadrupole Moments of Even-Even Sm Neutron-Rich Nuclei

NUCLEAR MOMENTS 152,154,156,158,160,162,164,166,168Sm; calculated electric quadrupole moments. Particle-number projection before variation.

doi: 10.1016/S0375-9474(01)00945-9
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