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NSR database version of May 8, 2024.

Search: Author = M.J.Iqbal

Found 21 matches.

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2012PA31      Eur.Phys.J. A 48, 119 (2012)

T.M.Partanen, J.A.Niskanen, M.J.Iqbal

Parity nonconserving proton-proton elastic scattering

NUCLEAR REACTIONS 1H(p, p), E=1-350 MeV; calculated longitudinal analyzing power using DDH potential with short-range ρ and ω and longer-ranged 2π exchanges as parity nonconserving interactions.

doi: 10.1140/epja/i2012-12119-1
Citations: PlumX Metrics

2008NI08      Eur.Phys.J. A 36, 295 (2008)

J.A.Niskanen, T.M.Partanen, M.J.Iqbal

Parity nonconserving two-pion exchange in elastic proton-proton scattering

NUCLEAR REACTIONS 1H(polarized p, p), E=10-1000 MeV; calculated analyzing power using various models. Comparison with data.

doi: 10.1140/epja/i2007-10595-x
Citations: PlumX Metrics

1996IQ01      Phys.Lett. 386B, 55 (1996)

M.J.Iqbal, X.Jin, D.B.Leinweber

ρ-ω Mixing Via QCD Sum Rules with Finite Mesonic Widths

doi: 10.1016/0370-2693(96)00914-8
Citations: PlumX Metrics

1996IQ02      Phys.Lett. 367B, 45 (1996)

M.J.Iqbal, X.Jin, D.B.Leinweber

Mesonic Width Effects on the Momentum Dependence of the ρ-ω Mixing Matrix Element

doi: 10.1016/0370-2693(95)01447-0
Citations: PlumX Metrics

1994IQ01      Phys.Rev. C49, 355 (1994)

M.J.Iqbal, J.A.Niskanen

Isobar Excitation in Parity Nonconserving Proton-Proton Scattering

NUCLEAR REACTIONS 1H(polarized p, p), E=10-1000 MeV; calculated parity violating average longitudinal analyzing power. Meson exchange model, isobar excitation.

doi: 10.1103/PhysRevC.49.355
Citations: PlumX Metrics

1994IQ02      Phys.Lett. 322B, 7 (1994)

M.J.Iqbal, J.A.Niskanen

The Effect of Off-Shell Variations of (ρ(Omega)) Meson Mixing on Charged Symmetry Breaking Neutron-Proton Scattering

NUCLEAR REACTIONS 1n(polarized p, p), E=183-800 MeV; calculated charge symmetry breaking observable vs θ; deduced ρ(omega)-mixing matrix off-shell variations implications.

doi: 10.1016/0370-2693(94)90482-0
Citations: PlumX Metrics

1992SO16      Nucl.Phys. A548, 562 (1992)

V.Sossi, M.J.Iqbal, R.R.Johnson, G.Jones, M.Pavan, F.M.Rozon, M.Sevior, D.Vetterli, P.Weber, G.Sheffer, G.R.Smith, P.Camerini, N.Grion, R.Rui, N.R.Stevenson, M.J.Vicente-Vacas

Pion-Induced Pion Production on Deuterium: A quasifree process

NUCLEAR REACTIONS 2H(π+, π-), E=280 MeV; measured σ(θ(π+), θ(π-), E(π+), E(π-)). Comparison with isobar model with Fermi motion.

doi: 10.1016/0375-9474(92)90642-W
Citations: PlumX Metrics

1991HA01      Phys.Rev. C43, 230 (1991)

O.Hausser, M.C.Vetterli, R.W.Fergerson, C.Glashausser, R.C.Jeppesen, R.D.Smith, R.Abegg, F.T.Baker, A.Celler, R.L.Helmer, R.Henderson, K.Hicks, M.J.Iqbal, K.P.Jackson, K.W.Jones, J.Lisantti, J.Mildenberger, C.A.Miller, R.S.Sawafta, S.Yen

Nuclear Response in the 54Fe(p(pol), p(pol)') Reaction at 290 MeV

NUCLEAR REACTIONS 54Fe(polarized p, p'), E=290 MeV; measured σ(θ), spin observables, analyzing power, spin-flip probabilities. 54Fe(n, p), E=298 MeV; analyzed data. 54Fe deduced isovector giant dipole, isoscalar giant quadrupole resonance. 54Mn deduced Gamow-Teller transition strength, quenching. Surface RPA model.

doi: 10.1103/PhysRevC.43.230
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1606.

1990IQ01      Phys.Rev. C42, 1872 (1990)

M.J.Iqbal, J.A.Niskanen

Parity Violating Nuclear Force by Meson Mixing

NUCLEAR REACTIONS 1H(polarized p, p), E=10-1000 MeV; calculated average longitudinal analyzing power; deduced form factors, correlations role. Meson mixing, parity violating interaction.

doi: 10.1103/PhysRevC.42.1872
Citations: PlumX Metrics

1989CH39      Nucl.Phys. A505, 670 (1989)

X.Y.Chen, L.W.Swenson, F.Farzanpay, D.K.McDaniels, Z.Xu, Z.Tang, D.M.Drake, I.Bergqvist, A.Brockstedt, J.Lisantti, F.Bertrand, D.J.Horen, K.Hicks, M.Vetterli, M.J.Iqbal

Analyzing Powers and Cross Sections of Inclusive Polarized Proton Scattering on 208Pb

NUCLEAR REACTIONS 208Pb(polarized p, p'), E=290, 500 MeV; measured σ(θ), analyzing power vs θ. DWBA, relativistic impulse approximation analyses.

doi: 10.1016/0375-9474(89)90037-7
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO0271.

1989NI01      Phys.Lett. 218B, 272 (1989)

J.A.Niskanen, M.J.Iqbal

ρ(Omega) Meson Mixing in the Reaction np → dπ0

NUCLEAR REACTIONS 1n(p, π0), E=580, 800 MeV; calculated pion production σ asymmetry; deduced ρ(omega) mixing role.

doi: 10.1016/0370-2693(89)91579-7
Citations: PlumX Metrics

1989SW01      Phys.Rev. C40, 246 (1989)

L.W.Swenson, X.Y.Chen, J.Lisantti, D.K.McDaniels, I.Bergqvist, F.E.Bertrand, D.J.Horen, E.E.Gross, C.Glover, R.O.Sayer, B.L.Burks, O.Hausser, K.Hicks, M.J.Iqbal

Different Continuum Approaches to Giant Resonances in 208Pb with 400-MeV Protons

NUCLEAR REACTIONS 208Pb(p, p'), E=400 MeV; 208Pb(polarized p, p'), E=200 MeV; measured σ(θ). 208Pb deduced giant resonance L, Γ, EWSR. DWBA analysis, continuum models comparison.

doi: 10.1103/PhysRevC.40.246
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetT0166.

1988CH13      Phys.Lett. 205B, 436 (1988)

X.Y.Chen, L.W.Swenson, F.Farzanpay, D.K.McDaniels, Z.Tang, Z.Xu, D.M.Drake, I.Bergqvist, A.Brockstedt, F.E.Bertrand, D.J.Horen, J.Lisantti, K.Hicks, M.Vetterli, M.J.Iqbal

Relativistic Medium Effects for 208Pb(p(pol), p') at Intermediate Energies

NUCLEAR REACTIONS 208Pb(polarized p, p'), E=290 MeV; measured σ(θp', Ep'), analyzing power vs θ; deduced relativistic medium effects.

doi: 10.1016/0370-2693(88)90973-2
Citations: PlumX Metrics
Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO0198.

1988HA27      Phys.Rev.Lett. 61, 822 (1988)

O.Hausser, R.Abegg, R.G.Jeppesen, R.Sawafta, A.Celler, A.Green, R.L.Helmer, R.Henderson, K.Hicks, K.P.Jackson, J.Mildenberger, C.A.Miller, M.C.Vetterli, S.Yen, M.J.Iqbal, R.D.Smith

Complete Spin Observables for Quasielastic Proton Scattering from 54Fe at 290 MeV

NUCLEAR REACTIONS 54Fe(polarized p, p'X), E=290 MeV; measured σ(θ, Ep'), spin-transfer σ(θ, Ep'), analyzing power, spin observables; deduced Fermi motion, nuclear response function, nucleon-nucleon interaction role. Relativistic, non-relativistic models, impulse approximation.

doi: 10.1103/PhysRevLett.61.822
Citations: PlumX Metrics

1988IQ01      Phys.Rev. C38, 2259 (1988)

M.J.Iqbal, J.A.Niskanen

Charge Symmetry Breaking in Neutron-Proton Scattering Including Arbitrary Mesons

NUCLEAR REACTIONS 1n(polarized p, p), 1H(polarized n, n), E=100 MeV; analyzed polarization asymmetry data; deduced charge symmetry breaking sensitivity to meson-nucleon form factors.

doi: 10.1103/PhysRevC.38.2259
Citations: PlumX Metrics

1988IQ02      Nucl.Phys. A487, 626 (1988)

M.J.Iqbal, J.I.Johansson, S.Hama, H.S.Sherif

Isovector Dirac Optical Potentials and Nucleon Charge Exchange Reactions

NUCLEAR REACTIONS 90Zr(polarized p, n), E=160 MeV; 48Ca(polarized p, n), E=134 MeV; calculated σ(θ), analyzing power. 208Pb(polarized p, n), E=134 MeV; calculated σ(θ), spin rotation parameter vs θ; deduced model parameters. Dirac optical potentials.

doi: 10.1016/0375-9474(88)90030-9
Citations: PlumX Metrics

1987BL20      Phys.Lett. 196B, 295 (1987)

P.G.Blunden, M.J.Iqbal

Relativistic Hartree-Fock Calculations for Finite Nuclei

NUCLEAR STRUCTURE 16O, 40Ca; calculated charge, matter densities, binding energy, rms charge radii. Relativistic Hartree-Fock.

doi: 10.1016/0370-2693(87)90734-9
Citations: PlumX Metrics

1987BL22      Phys.Lett. 198B, 14 (1987)

P.G.Blunden, M.J.Iqbal

Contribution of Charge Symmetry Breaking Forces to Energy differences in Mirror Nuclei

NUCLEAR REACTIONS 1H(p, p), 1n(n, n), E=low; calculated scattering length differences, charge symmetry breaking potentials.

NUCLEAR STRUCTURE A=11-41; calculated odd mirror nuclei energy, differences. Charge symmetry breaking potentials.

doi: 10.1016/0370-2693(87)90148-1
Citations: PlumX Metrics

1987IQ02      Phys.Rev. C36, 2442 (1987)

M.J.Iqbal, J.Thaler, R.M.Woloshyn

Effect of Neutron-Proton Mass Difference on Charge Symmetry Breaking in Neutron-Proton Elastic Scattering

NUCLEAR REACTIONS 1H(n, n), E not given; calculated n-p mass difference contribution to charge symmetry breaking.

doi: 10.1103/PhysRevC.36.2442
Citations: PlumX Metrics

1986HO10      Phys.Rev. C33, 2059 (1986); Erratum Phys.Rev. C34, 2012 (1986)

C.J.Horowitz, M.J.Iqbal

Relativistic Effects on Spin Observables in Quasielastic Proton Scattering

NUCLEAR REACTIONS 12C, 40Ca, 208Pb(polarized p, p'), E=0.2-1 GeV; calculated polarization, analyzing powers, other spin observables vs θ. Relativistic DWBA analysis.

doi: 10.1103/PhysRevC.33.2059
Citations: PlumX Metrics

1985IQ01      Phys.Rev. C32, 556 (1985)

M.J.Iqbal, G.E.Walker

Intermediate Isobar Effects in a Two-Nucleon Mechanism for (p, π)

NUCLEAR REACTIONS 12C(p, π+), E=250, 265, 200 MeV; calculated σ(θ). Two-nucleon model, intermediate isobar effects.

doi: 10.1103/PhysRevC.32.556
Citations: PlumX Metrics

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