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NSR database version of May 23, 2024.

Search: Author = R.M.Laszewski

Found 27 matches.

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1993AL13      Phys.Rev. C48, 1431 (1993)

R.Alarcon, S.Choi, R.M.Laszewski, D.S.Dale

Isoscalar M1 Strength in Lead

NUCLEAR REACTIONS 206Pb(γ, γ), E=5.5-7 MeV; measured σ(Eγ). 206Pb deduced B(M1). Polarized photons.

doi: 10.1103/PhysRevC.48.1431
Citations: PlumX Metrics

1992DA09      Phys.Rev.Lett. 68, 3507 (1992)

D.S.Dale, R.M.Laszewski

Isovector E2 Resonance in 208Pb

NUCLEAR REACTIONS 208Pb(polarized γ, γ'), (γ, X), E=16-30 MeV; measured asymmetry, photoabsorption σ vs E. 208Pb deduced E2 resonance, width, transition strength relative to isovector quadrupole sum rule.

doi: 10.1103/PhysRevLett.68.3507
Citations: PlumX Metrics

1989AL18      Phys.Rev. C40, R1097 (1989)

R.Alarcon, R.M.Laszewski, D.S.Dale

Giant M1 Resonance in 120Sn and the Quenching of the Nucleon Spin g Factors

NUCLEAR REACTIONS 120Sn(polarized γ, γ), E=7.3-9.3 MeV; measured σ(E), asymmetry; deduced nucleon spin g factors. 120Sn deduced B(M1). Tagged photon beam.

doi: 10.1103/PhysRevC.40.R1097
Citations: PlumX Metrics

1988LA06      Phys.Rev.Lett. 60, 1202 (1988)

R.M.Laszewski, R.Alarcon

Laszewski and Alarcon Reply

NUCLEAR REACTIONS 90Zr(polarized γ, γ'), E not given; analyzed data, previous calculations. 90Zr deduced M1 transition strength distribution.

doi: 10.1103/PhysRevLett.60.1202
Citations: PlumX Metrics

1988LA23      Phys.Rev.Lett. 61, 1710 (1988)

R.M.Laszewski, R.Alarcon, D.S.Dale, S.D.Hoblit

Distribution of M1 Transitions in 208Pb

NUCLEAR REACTIONS 208Pb(polarized γ, γ'), E=5.8-7.6 MeV; measured σ(Eγ, E), asymmetry. 208Pb deduced B(M1) distribution. Linearly polarized tagged photon beam.

doi: 10.1103/PhysRevLett.61.1710
Citations: PlumX Metrics

1987AL16      Phys.Rev. C36, 954 (1987)

R.Alarcon, R.M.Laszewski, A.M.Nathan, S.D.Hoblit

Photon Scattering from 90Zr below Neutron Emission Threshold

NUCLEAR REACTIONS 90Zr(γ, γ), (γ, γ'), E=8.1-10.5 MeV; measured elastic, inelastic σ(E); deduced total σ(E). 90Zr deduced B(E1), GDR dominance.

doi: 10.1103/PhysRevC.36.954
Citations: PlumX Metrics

1987BI15      Phys.Rev. C36, 1293 (1987)

Y.Birenbaum, R.Alarcon, S.D.Hoblit, R.M.Laszewski, A.M.Nathan

Photon Scattering on 238U and the Interpretation of Near-Threshold Photofission Resonances

NUCLEAR REACTIONS 238U(γ, γ), E=4.8-6.4 MeV; measured σ(E, θ=135°); deduced total σ(E). 238U deduced fission transmission factors.

doi: 10.1103/PhysRevC.36.1293
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0263.

1987LA19      Phys.Rev.Lett. 59, 431 (1987)

R.M.Laszewski, R.Alarcon, S.D.Hoblit

Giant M1 Resonance in 90Zr

NUCLEAR REACTIONS 90Zr(polarized γ, γ), E=8.1-10.5 MeV; measured σ(E), γ asymmetry vs E. 90Zr deduced giant M1 transition strength distribution.

doi: 10.1103/PhysRevLett.59.431
Citations: PlumX Metrics

1986LA21      Phys.Rev. C34, 1114 (1986)


Photon Interactions below 9 MeV in Ba and Ce

NUCLEAR REACTIONS Ba, Ce(γ, γ), E=4.5-9 MeV; measured σ(θ) vs E; deduced total absorption σ(E). Photon tagging technique, natural targets.

doi: 10.1103/PhysRevC.34.1114
Citations: PlumX Metrics

1986LA31      Phys.Rev. C34, 2013 (1986)

R.M.Laszewski, P.Rullhusen, S.D.Hoblit, S.F.LeBrun

Giant M1 Resonance in 140Ce

NUCLEAR REACTIONS 140Ce(polarized γ, γ), E=6.7-8.7 MeV; measured σ, γ asymmetry. 140Ce deduced M1 transition strength, giant resonance. NaI detector.

doi: 10.1103/PhysRevC.34.2013
Citations: PlumX Metrics

1985LA02      Phys.Rev.Lett. 54, 530 (1985)

R.M.Laszewski, P.Rullhusen, S.D.Hoblit, S.F.LeBrun

Giant M1 Resonance in Pb

NUCLEAR REACTIONS 206Pb(polarized γ, γ), E=6.7-8.1 MeV; measured σ(E), asymmetry vs Eγ. 206Pb deduced B(M1) distribution strength.

doi: 10.1103/PhysRevLett.54.530
Citations: PlumX Metrics

1985LA07      Nucl.Instrum.Methods 228, 334 (1985)

R.M.Laszewski, P.Rullhusen, S.D.Hoblit, S.F.Lebrun

Enhanced Linear Polarization for Tagged Photon Beams

NUCLEAR REACTIONS 24Mg(polarized γ, γ), E=10.7 MeV; 28Si(polarized γ, γ), E=11.4 MeV; measured asymmetry ratio. Tagged linearly polarized beam.

doi: 10.1016/0168-9002(85)90278-5
Citations: PlumX Metrics

1984SC03      Phys.Rev.Lett. 52, 597 (1984)

M.E.Schulze, D.Beck, M.Farkhondeh, S.Gilad, R.Goloskie, R.J.Holt, S.Kowalski, R.M.Laszewski, M.J.Leitch, J.D.Moses, R.P.Redwine, D.P.Saylor, J.R.Specht, E.J.Stephenson, K.Stephenson, W.Turchinetz, B.Zeidman

Measurement of the Tensor Polarization in Electron-Deuteron Elastic Scattering

NUCLEAR REACTIONS 2H(e, e), E=310-317 MeV; measured recoil deuteron tensor polarization. Windowless D2O target.

doi: 10.1103/PhysRevLett.52.597
Citations: PlumX Metrics

1981BO06      Phys.Rev. C23, 439 (1981)

T.J.Bowles, D.F.Geesaman, R.J.Holt, H.E.Jackson, J.Julien, R.M.Laszewski, J.R.Specht, E.J.Stephenson, R.P.Redwine, L.L.Rutledge, Jr., R.E.Segel, M.A.Yates

Inclusive (π+-, π0) Reactions in Nuclei

NUCLEAR REACTIONS 9Be, 12C, 16O, 58Ni, 208Pb(π+, π0), (π-, π0), E=50-100 MeV; measured σ(E, θ); deduced quasifree scattering effects. Optical model analysis.

doi: 10.1103/PhysRevC.23.439
Citations: PlumX Metrics

1981BO35      Phys.Rev. C24, 1940 (1981)

T.J.Bowles, R.J.Holt, H.E.Jackson, R.M.Laszewski, R.D.McKeown, A.M.Nathan, J.R.Specht

Photon Scattering Studies of the Giant Dipole Resonance in Medium Weight Nuclei

NUCLEAR REACTIONS 52Cr, Fe, 60Ni, 92,96Mo(γ, γ), (γ, γ'), E=14-22 MeV; measured Eγ, σ(θ); deduced GDR, collective surface vibration coupling. 52Cr, Fe, 60Ni, 92,96Mo deduced GDR isospin splitting.

doi: 10.1103/PhysRevC.24.1940
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetM0495.

1981HO15      Phys.Rev.Lett. 47, 472 (1981)

R.J.Holt, J.R.Specht, K.Stephenson, B.Zeidman, J.S.Frank, M.J.Leitch, J.D.Moses, E.J.Stephenson, R.M.Laszewski

Measurement of the Angular Distribution of Tensor Polarization in Pion-Deuteron Elastic Scattering

NUCLEAR REACTIONS 2H(π+, π+), E=142 MeV; measured tensor polarization t20(θ(π)). CD2 target, quadrupole doublet focussing, plastic scintillator array.

doi: 10.1103/PhysRevLett.47.472
Citations: PlumX Metrics

1980HO11      Phys.Rev. C21, 1699 (1980); Erratum Phys.Rev. C23, 1841 (1981)

R.J.Holt, R.M.Laszewski, H.E.Jackson, J.E.Monahan, J.R.Specht

Photoneutron Studies of E1, M1, and E2 Excitations in 13C

NUCLEAR REACTIONS 13C(γ, n0), E=6.5-9.3 MeV; measured σ(θ), θ=90°, 135°; deduced Γγ.

doi: 10.1103/PhysRevC.21.1699
Citations: PlumX Metrics

1979HO12      Phys.Rev. C20, 93 (1979)

R.J.Holt, H.E.Jackson, R.M.Laszewski, J.R.Specht

High-Resolution Photoneutron Study of E1 and M1 Transitions in 208Pb

NUCLEAR REACTIONS 208Pb(γ, n), E=bremsstrahlung; measured σ(θ), P(θ). 208Pb deduced resonances, J, π, Γγ, B(M1), s-d admixture in E1 excitations.

doi: 10.1103/PhysRevC.20.93
Citations: PlumX Metrics

1979HO18      Phys.Rev.Lett. 43, 1229 (1979)

R.J.Holt, J.R.Specht, E.J.Stephenson, B.Zeidman, R.L.Burman, J.S.Frank, M.J.Leitch, J.D.Moses, M.A.Yates-Williams, R.M.Laszewski, R.P.Redwine

Measurement of Tensor Polarization and Cross Section for the Reaction 2H(π+, π+)2H at 180°

NUCLEAR REACTIONS 2H(π+, π+), E=60-140 MeV; measured σ(θ), T20 of recoil d.

doi: 10.1103/PhysRevLett.43.1229
Citations: PlumX Metrics

1979LA01      Phys.Rev. C19, 342 (1979)

R.M.Laszewski, P.Axel

Interaction of Photons with 208Pb and Neighboring Isotopes at Energies below the Neutron Emission Threshold

NUCLEAR REACTIONS 209Bi, 206,207,208Pb, Tl, Hg(γ, γ), 4.5 < E < neutron threshold bremsstrahlung; measured average σ. 208Pb level deduced Γ, B(E1).

doi: 10.1103/PhysRevC.19.342
Citations: PlumX Metrics

1979NA01      Phys.Rev.Lett. 42, 221 (1979); Erratum Phys.Rev.Lett. 42, 614 (1979)

A.M.Nathan, R.Starr, R.M.Laszewski, P.Axel

Parity of Bound J = 1 Levels in 208Pb

NUCLEAR REACTIONS 208Pb(polarized γ, γ), E < 14 MeV [from bremsstrahlung emitted by 14-MeV electrons on Al]; measured γe-coin. 208Pb J=1 levels deduced π. Pattern of M1 strength has to be reexamined.

doi: 10.1103/PhysRevLett.42.221
Citations: PlumX Metrics

1978BO01      Phys.Rev.Lett. 40, 97 (1978)

T.Bowles, D.F.Geesaman, R.J.Holt, H.E.Jackson, R.M.Laszewski, J.R.Specht, L.L.Rutledge, Jr., R.E.Segel, R.P.Redwine, M.A.Yates-Williams

Properties of Inclusive (π+, π0) Reactions in Nuclei

NUCLEAR REACTIONS Be, C, O, 58Ni, 208Pb(π+, π0), E=100 MeV; measured σ.

doi: 10.1103/PhysRevLett.40.97
Citations: PlumX Metrics

1978BO27      Phys.Rev.Lett. 41, 1095 (1978)

T.J.Bowles, R.J.Holt, H.E.Jackson, R.M.Laszewski, A.M.Nathan, J.R.Specht, R.Starr

Direct Observation of Elastic and Inelastic Photon Scattering by the Giant Dipole Resonance in 60Ni

NUCLEAR REACTIONS 60Ni(γ, γ'), E=15-22 MeV; measured σ(E, Eγ').

doi: 10.1103/PhysRevLett.41.1095
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1978HO16      Phys.Rev. C18, 1962 (1978)

R.J.Holt, H.E.Jackson, R.M.Laszewski, J.E.Monahan, J.R.Specht

Effects of Channel and Potential Radiative Transitions in the 17O(γ, n0)16O Reaction

NUCLEAR REACTIONS 17O(γ, n), E=4.3-7 MeV; measured σ(E, θ). 17O resonances deduced ground state Γγ for E1, M1. R-matrix analysis, astrophysical implications.

doi: 10.1103/PhysRevC.18.1962
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0196.

1977HO03      Phys.Rev. C15, 827 (1977)

R.J.Holt, R.M.Laszewski, H.E.Jackson

Search for the Collective M1 Resonance in 208Pb

NUCLEAR REACTIONS 208Pb(γ, n), E=7.55-7.72 MeV; measured polarization. 208Pb resonances deduced E1 character.

doi: 10.1103/PhysRevC.15.827
Citations: PlumX Metrics

1977LA02      Phys.Rev.Lett. 38, 813 (1977)

R.M.Laszewski, R.J.Holt, H.E.Jackson

Evidence for Collective M1 Strength in 208Pb between 8 and 10 MeV

NUCLEAR REACTIONS 208Pb(γ, n), E=8-10 MeV; measured neutron polarization. 208Pb deduced resonances, B(M1).

doi: 10.1103/PhysRevLett.38.813
Citations: PlumX Metrics

1976LA08      Phys.Rev. C13, 2257 (1976)

R.M.Laszewski, R.J.Holt, H.E.Jackson

M1 and E1 Transition Strength Near Threshold in 140Ce

NUCLEAR REACTIONS 140Ce(γ, n), E=9.1 MeV; measured σ(En, θ). 140Ce deduced M1, E1 strength functions.

doi: 10.1103/PhysRevC.13.2257
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