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NSR database version of April 29, 2024.

Search: Author = Q.N.Usmani

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2012SA62      J.Phys.:Conf.Ser. 381, 012102 (2012)

Z.Sauli, N.Abdullah, K.Anwar, Q.N.Usmani

Symmetry Energy of Nuclear Matter at Low Densities and Clustering at the Nuclear Surface

doi: 10.1088/1742-6596/381/1/012101
Citations: PlumX Metrics

2012US01      Phys.Rev. C 86, 034323 (2012)

Q.N.Usmani, K.Anwar, N.Abdullah

Further improvement in the variational many-body wave functions for light nuclei

NUCLEAR STRUCTURE ³H, ⁴He, ⁶Li; calculated variational energies as function of number of configurations, rms radii using an improved ansatz for variational many-body wave functions with Argonne (AV18) and Urbana IX (UIX) interactions. ⁶Li found unstable for decay into α+d.

doi: 10.1103/PhysRevC.86.034323
Citations: PlumX Metrics

2011US04      Phys.Rev. C 84, 064313 (2011)

Q.N.Usmani, N.Abdullah, K.Anwar, Z.Sauli

Nuclear matter properties, phenomenological theory of clustering at the nuclear surface, and symmetry energy

NUCLEAR STRUCTURE Z>8, A>16; calculated symmetry energies, proton point rms radii, quadratic to quartic isospin ratios, neutron skin thickness. ⁴⁸Ca, ⁹⁰Zr, ^124,132Sn, ²⁰⁸Pb; calculated neutron skin thickness. Equation of state (EOS) of pure neutron matter. Thomas-Fermi theory with phenomenological pairing and Wigner contributions. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.064313
Citations: PlumX Metrics

2011US05      J.Phys.:Conf.Ser. 312, 092060 (2011)

Q.N.Usmani, Z.Sauli, N.Abdullah

Clustering at the nuclear surface and symmetry energy

NUCLEAR STRUCTURE A≈10-220; calculated mass excess. A≈35-220; calculated charge radii. Phenomenological theory of nuclei with clusterization at the surface. Compared with data.

doi: 10.1088/1742-6596/312/9/092060
Citations: PlumX Metrics

2009US02      Phys.Rev. C 80, 034309 (2009)

Q.N.Usmani, A.Singh, K.Anwar, G.Rawitscher

Improved variational many-body wave function in light nuclei

NUCLEAR STRUCTURE ³H, ⁴He, ⁶Li; calculated rms radii, variational and local energies, three-body variational parameters using Argonne two-body and Urbana-IX three-body interactions.

doi: 10.1103/PhysRevC.80.034309
Citations: PlumX Metrics

2008US02      Phys.Rev. C 77, 034312 (2008)

Q.N.Usmani, A.R.Bodmer, Z.Sauli

Core nucleus polarization in Λ hypernuclei

NUCLEAR STRUCTURE ^3,4H, ^4,5He; calculated binding energies. ¹⁰B, ^11,12C, ^15,16,18O, ²⁰Ne, ²³Na, ^27,28Si, ^31,32S, ^{39,40,42,44,48}Ca, ^50,51V, ⁵⁸Ni, ^88,89Y, ⁹¹Y, ¹⁰⁰Mo, ¹²²Sn, ^138,139La, ¹⁵⁰Nd, ¹⁶⁹Tm, ¹⁷⁴Yb, ¹⁹⁸Hg, ^207,208,210Pb, ²³⁸U, ²⁴³Am; calculated single particle energies, rms radii, wave functions for hypernuclei.

doi: 10.1103/PhysRevC.77.034312
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2004US01      Phys.Rev. C 70, 061001 (2004)

Q.N.Usmani, A.R.Bodmer, B.Sharma

Six-Body variational Monte Carlo study of ⁶_ΛΛ He

NUCLEAR STRUCTURE ⁶He; calculated incremental binding energy for two-Λ hypernucleus, three-body interaction effects, related features. Six-Body variational Monte Carlo approach.

doi: 10.1103/PhysRevC.70.061001
Citations: PlumX Metrics

2003BO07      Phys.Rev. C 67, 034305 (2003)

A.R.Bodmer, Q.N.Usmani

Neutron and proton densities and the symmetry energy

NUCLEAR STRUCTURE ²⁰⁸Pb; calculated neutron and proton radii, density distributions, density dependence of surface-symmetry energy, related features. Thomas-Fermi approach.

doi: 10.1103/PhysRevC.67.034305
Citations: PlumX Metrics

2002SI21      Phys.Rev. C66, 024006 (2002)

R.Sinha, Q.N.Usmani, B.M.Taib

Phenomenological Λ-nuclear interactions

NUCLEAR STRUCTURE ⁴H, ⁵He; calculated hypernucleus binding energies, radii, related features; deduced parameters. Variational Monte Carlo approach.

doi: 10.1103/PhysRevC.66.024006
Citations: PlumX Metrics

2001SI18      Nucl.Phys. A684, 586c (2001)

R.Sinha, Q.N.Usmani

Structure of Light Hypernuclei and Λ-Nuclear Interaction

NUCLEAR STRUCTURE ⁴H, ⁵He; calculated hypernucleus binding energies, dependence on Λ-nucleus potential.

doi: 10.1016/S0375-9474(01)00381-5
Citations: PlumX Metrics

1999SH21      Phys.Rev. C59, 2807 (1999)

M.Shoeb, N.Neelofer, Q.N.Usmani, M.Z.Rahman Khan

New Dispersive ΛNN Force and s-Shell Hypernuclei

NUCLEAR STRUCTURE ^3,4H, ^4,5He; calculated hypernucleus binding energy; deduced two-, three-body potential features. Variational Monte Carlo approach.

doi: 10.1103/PhysRevC.59.2807
Citations: PlumX Metrics

1999US03      Phys.Rev. C60, 055215 (1999)

Q.N.Usmani, A.R.Bodmer

Λ Single Particle Energies

NUCLEAR STRUCTURE ^11,12,13C, ¹⁶O, ²⁸Si, ³²S, ⁴⁰Ca, ⁵¹V, ⁸⁹Y, ¹³⁹La, ²⁰⁸Pb; calculated hyperon single-particle energies; deduced potential features. Comparison with data.

doi: 10.1103/PhysRevC.60.055215
Citations: PlumX Metrics

1998SH40      Pramana 51, 421 (1998)

M.Shoeb, Q.N.Usmani, A.R.Bodmer

ΛN Space-Exchange Effects in the s-Shell Hypernuclei and _Λ⁹Be

NUCLEAR STRUCTURE ^3,4H, ⁵He, ⁹Be; calculated hypernuclei ground-state separation energies; deduced space-exchange effects.

doi: 10.1007/BF02828935
Citations: PlumX Metrics

1998US02      Nucl.Phys. A639, 147c (1998)

Q.N.Usmani, A.R.Bodmer

Microscopic Calculations of Λ Single-Particle Energies

NUCLEAR STRUCTURE ^11,12,13C, ¹⁶O, ²⁸Si, ³²S, ⁴⁰Ca, ⁵¹V, ⁸⁹Y, ¹³⁹La, ²⁰⁸Pb; calculated hypernuclei Λ single-particle energies. Phenomenological model.

doi: 10.1016/S0375-9474(98)00263-2
Citations: PlumX Metrics

1996BO33      Nucl.Phys. A609, 326 (1996)

A.R.Bodmer, S.Murali, Q.N.Usmani

Nuclear Core Dynamics and Rearrangement Energy for Hypernuclei

NUCLEAR STRUCTURE A=5; calculated nucleon distribution rms radius in hypernucleus, Λ-binding energy. Variational correlated wave functions, ⁴He core.

doi: 10.1016/S0375-9474(96)00251-5
Citations: PlumX Metrics

1995SA38      Nuovo Cim. 108A, 147 (1995)

M.Salelem Khan, H.Khushnood, A.R.Ansari, Q.N.Usmani

Study of Disintegrations Caused by 4.5 GeV Carbon Nuclei in Nuclear Emulsion

1995US01      Phys.Rev. C51, 2347 (1995)

A.A.Usmani, S.C.Pieper, Q.N.Usmani

Variational Calculations of the (Lambda)-Separation Energy of the ¹⁷O(Lambda) Hypernucleus

NUCLEAR STRUCTURE A=17; calculated ¹⁷O(lambda) hypernucleus lambda separation energy. Variational Monte Carlo simulations.

doi: 10.1103/PhysRevC.51.2347
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1992US01      Phys.Rev. C45, 396 (1992)

A.A.Usmani, I.Ahmad, Q.N.Usmani

⁴He-⁴He Elastic Scattering and Variational Wave Functions

NUCLEAR REACTIONS ⁴He(α, α), E at 4.32 GeV/c; analyzed data. Glauber multiple scattering theory, correlated variational wave functions.

doi: 10.1103/PhysRevC.45.396
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1989US01      Phys.Rev. C39, 1182 (1989)

A.A.Usmani, I.Ahmad, Q.N.Usmani

α ⁴He Elastic Scattering at High Energies

NUCLEAR REACTIONS ⁴He(α, α), E at 4.32, 5.07 GeV/c; calculated σ(θ) vs momentum. Glauber multiple scattering theory.

doi: 10.1103/PhysRevC.39.1182
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1985BO17      Phys.Rev. C31, 1400 (1985)

A.R.Bodmer, Q.N.Usmani

Coulomb Effects and Charge Symmetry breaking for the A = 4 Hypernuclei

NUCLEAR STRUCTURE ³He, ³H; calculated binding energy, charge radii; deduced Coulomb effects, charge symmetry breaking for A=4 hypernuclei. Variational procedure.

doi: 10.1103/PhysRevC.31.1400
Citations: PlumX Metrics