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NSR database version of April 27, 2024.

Search: Author = M.S.Johnson

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2022BL06      Appl.Radiat.Isot. 190, 110509 (2022)

D.L.Bleuel, S.G.Anderson, L.A.Bernstein, J.A.Brown, J.A.Caggiano, B.L.Goldblum, J.M.Gordon, J.M.Hall, K.P.Harrig, M.S.Johnson, T.A.Laplace, R.A.Marsh, M.E.Montague, A.Ratkiewicz, B.Rusnak, C.A.Velsko

The ⁴⁰Ar(d, p)⁴¹Ar cross section between 3-7 MeV

NUCLEAR REACTIONS ⁴⁰Ar(d, p), E=3.6, 5.5, 7 MeV; measured reaction products, Eγ, Iγ; deduced σ. Comparison with available data, TALYS calculations. Lawrence Berkeley National Laboratory's 88-Inch Cyclotron.

doi: 10.1016/j.apradiso.2022.110509
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2019PA21      Phys.Rev. C 99, 045807 (2019)

S.N.Paneru, C.R.Brune, R.Giri, R.J.Livesay, U.Greife, J.C.Blackmon, D.W.Bardayan, K.A.Chipps, B.Davids, D.S.Connolly, K.Y.Chae, A.E.Champagne, C.Deibel, K.L.Jones, M.S.Johnson, R.L.Kozub, Z.Ma, C.D.Nesaraja, S.D.Pain, F.Sarazin, J.F.Shriner, D.W.Stracener, M.S.Smith, J.S.Thomas, D.W.Visser, C.Wrede

s-wave scattering lengths for the ⁷Be + p system from an R-matrix analysis

NUCLEAR REACTIONS ¹H(⁷Be, ⁷Be), (⁷Be, ⁷Be'), E=4-27 MeV; ¹²C(⁷Be, ⁷Be), E=7, 14 meV; measured scattered ions, differential σ(θ) using (CH₂)_n target and segmented Silicon Detector Array (SIDAR) for scattered ion detection at ORNL-HRIBF; deduced s-wave scattering lengths, R-matrix analysis of elastic and inelastic scattering data; analyzed cross-section data from Louvain-la-Neuve reported in 2003An06 reference. Comparison with previous experimental values, and optical model calculations. Relevance to astrophysical S factor for ⁷Be(p, γ) reaction. ⁸B; verified levels at 1.9, 2.21 and 9.0 MeV.

doi: 10.1103/PhysRevC.99.045807
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC2695. Data from this article have been entered in the XUNDL database. For more information, click here.

2014MU01      Phys.Rev. C 89, 034615 (2014)

J.M.Mueller, M.W.Ahmed, R.H.France, M.S.Johnson, H.J.Karwowski, L.S.Myers, J.Randrup, M.H.Sikora, M.C.Spraker, S.Stave, J.R.Tompkins, R.Vogt, H.R.Weller, C.S.Whisnant, W.R.Zimmerman

Prompt neutron polarization asymmetries in photofission of ²³²Th, ^{233, 235, 238}U, ²³⁷Np, and ^{239, 240}Pu

NUCLEAR REACTIONS ²³²Th, ^233,235,238U, ²³⁷Np, ^239,240Pu(polarized γ, F), E=5.3-7.6 MeV; measured E(n), I(n), time-of flight spectrum, angular distribution, and polarization asymmetry of prompt neutrons generated by fission, θ(fragment) at HIγS-TUNL facility; deduced angular distribution coefficients b and c, and compared with predicted values from FREYA computer code of event-by-event Monte Carlo prompt neutron+γ-ray emission calculation. Discussed differences in polarization asymmetries between the even-even actinides and odd-A actinides.

doi: 10.1103/PhysRevC.89.034615
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2012MU01      Phys.Rev. C 85, 014605 (2012)

J.M.Mueller, M.W.Ahmed, B.Davis, J.M.Hall, S.S.Henshaw, M.S.Johnson, H.J.Karwowski, D.Markoff, L.S.Myers, B.A.Perdue, S.Stave, J.R.Tompkins, M.J.Tuffley, H.R.Weller

Measurement of prompt neutron polarization asymmetries in photofission of ^{235, 238}U, ²³⁹Pu, and ²³²Th

NUCLEAR REACTIONS ²³²Th, ^235,238U, ²³⁹Pu(polarized γ, F), E=5.6-7.3 MeV; measured neutron spectra, prompt fission neutron angular distributions polarization asymmetries using High Intensity γ-ray Source (HIγS). Comparison with simplified model of photofission.

doi: 10.1103/PhysRevC.85.014605
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0166.

2011JO11      J.Korean Phys.Soc. 59, 1414s (2011)

M.S.Johnson, J.M.Hall, D.P.McNabb, J.L.McFarland, E.B.Norman, W.Bertozzi, S.E.Korbly, R.J.Ledoux, W.H.Park

Applications of Photonuclear Physics for International Safeguards and Security

NUCLEAR REACTIONS ²³⁹Pu(γ, γ'), E=0-5.5 MeV[from HIGS (High-Intensity Gamma-ray Source) using bremsstrahlung spectra with endpoint energy 4.0-5.5 MeV]; measured thick target Eγ, Iγ using HPGe. ²³⁹Pu deduced prompt γ transitions.²⁷Al, ⁵⁵Mn, ⁵⁶Fe(γ, γ'), E=0-5.5 MeV;¹H, ¹⁴N, ³⁵Cl, ^52,53Cr(n, γ), E=background;⁵⁵Mn, ⁵⁶Fe(n, n'γ), E=background; measured Eγ, Iγ. ²⁸Al, ⁵⁶Fe deduced β-delayed γ transitions (NRF - Nuclear Resonance Fluorescence) peaks.

doi: 10.3938/jkps.59.1414
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2008BE31      Phys.Rev. C 78, 041601 (2008)

W.Bertozzi, J.A.Caggiano, W.K.Hensley, M.S.Johnson, S.E.Korbly, R.J.Ledoux, D.P.McNabb, E.B.Norman, W.H.Park, G.A.Warren

Nuclear resonance fluorescence excitations near 2 MeV in ²³⁵U and ²³⁹Pu

NUCLEAR REACTIONS ²³⁵U(γ, γ'), E=2.2 MeV;²³⁹Pu(γ, γ), E=2.8 MeV; measured Eγ, Iγ, σ; deduced level energies, dipole excitations.

doi: 10.1103/PhysRevC.78.041601
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetL0139. Data from this article have been entered in the XUNDL database. For more information, click here.

2007CI05      Nucl.Instrum.Methods Phys.Res. B261, 938 (2007)

J.A.Cizewski, R.Hatarik, K.L.Jones, S.D.Pain, J.S.Thomas, M.S.Johnson, D.W.Bardayan, J.C.Blackmon, M.S.Smith, R.L.Kozub

(d, pγ) Reactions and the surrogate reaction technique

NUCLEAR REACTIONS ²H(⁹⁰Zr, pγ), (⁸⁰Se, pγ), E=4 MeV/nucleon; measured Eγ, Ep, pγ-coinc.

doi: 10.1016/j.nimb.2007.03.028
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2007JO09      Acta Phys.Pol. B38, 1205 (2007)

K.L.Jones, A.S.Adekola, D.W.Bardayan, J.C.Blackmon, K.Y.Chae, K.Chipps, J.A.Cizewski, D.J.Dean, L.Erikson, R.P.Fitzgerald, A.L.Gaddis, U.Greife, C.Harlin, R.Hatarik, J.A.Howard, M.S.Johnson, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, P.D.O'Malley, C.D.Nesaraja, S.D.Pain, N.P.Patterson, S.V.Paulauskas, D.Shapira, J.F.Shriner Jr, D.J.Sissom, M.S.Smith, T.P.Swan, J.S.Thomas

Single Neutron Transfer Experiments Close to the r-Process Path

NUCLEAR REACTIONS ²H(⁸²Ge, p), E=4 MeV/nucleon; ²H(⁸⁴Se, p), E=4.5 MeV/nucleon; ²H(¹³²Sn, p), E=4.77 MeV/nucleon; measured Ep and angular distributions. ⁸³Ge, ⁸⁵Se, ¹³³Sn deduced levels, J, π and spectroscopic factors. Compared results to model calculations.

2007TH15      Phys.Rev. C 76, 044302 (2007)

J.S.Thomas, G.Arbanas, D.W.Bardayan, J.C.Blackmon, J.A.Cizewski, D.J.Dean, R.P.Fitzgerald, U.Greife, C.J.Gross, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, D.Shapira, M.S.Smith, D.W.Visser

Single-neutron excitations in neutron-rich ⁸³Ge and ⁸⁵Se

NUCLEAR REACTIONS ²H(⁸²Ge, p), (⁸⁴Se, p), E=330, 380 MeV; measured Ep, Ip, recoil-proton-coin, angular distributions; deduced asymptotic normalization coefficients, spectroscopic factors. ⁸³Ge, ⁸⁵Se; deduced levels, J, π, angular momentum using DWBA analysis. ⁸²Ge, ⁸⁴Se(n, γ), E=0-1 MeV; calculated cross sections.

doi: 10.1103/PhysRevC.76.044302
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1577. Data from this article have been entered in the XUNDL database. For more information, click here.

2006BA65      Phys.Rev. C 74, 045804 (2006)

D.W.Bardayan, J.A.Howard, J.C.Blackmon, C.R.Brune, K.Y.Chae, W.R.Hix, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, E.J.Lingerfelt, R.J.Livesay, S.D.Pain, J.P.Scott, M.S.Smith, J.S.Thomas, D.W.Visser

Astrophysically important ²⁶Si states studied with the ²⁸Si(p, t)²⁶Si reaction. II. Spin of the 5.914-MeV ²⁶Si level and galactic ²⁶Al production

NUCLEAR REACTIONS ²⁸Si(p, t), (p, d), E=40 MeV; measured particle spectra, angular distributions. ²⁶Si level deduced J, π. ²⁵Al(p, γ), E=low; deduced astrophysical reaction rate.

doi: 10.1103/PhysRevC.74.045804
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1509. Data from this article have been entered in the XUNDL database. For more information, click here.

2006CH30      Phys.Rev. C 74, 012801 (2006)

K.Y.Chae, D.W.Bardayan, J.C.Blackmon, D.Gregory, M.W.Guidry, M.S.Johnson, R.L.Kozub, R.J.Livesay, Z.Ma, C.D.Nesaraja, S.D.Pain, S.Paulauskas, M.Porter-Peden, J.F.Shriner, Jr., N.Smith, M.S.Smith, J.S.Thomas

First experimental constraints on the interference of (3/2)⁺ resonances in the ¹⁸F(p, α)¹⁵O reaction

NUCLEAR REACTIONS ¹H(¹⁸F, α), E(cm) ≈ 663-877 keV; measured particle spectra, excitation functions; deduced resonance interference effects. ¹⁹Ne deduced upper limits on resonance widths. R-matrix calculations.

doi: 10.1103/PhysRevC.74.012801
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1446.

2005CI07      Nucl.Instrum.Methods Phys.Res. B241, 200 (2005)

J.A.Cizewski, K.L.Jones, S.D.Pain, J.S.Thomas, C.Baktash, D.W.Bardayan, J.C.Blackmon, C.Gross, J.F.Liang, D.Shapira, M.S.Smith, R.L.Kozub, B.H.Moazen, C.D.Nesaraja, H.K.Carter, M.S.Johnson, R.P.Fitzgerald, D.W.Visser, U.Greife, R.J.Livesay, W.Catford, Z.Ma

Neutron transfer reactions with neutron-rich radioactive ion beams

NUCLEAR REACTIONS ²H(⁸²Ge, p), (⁸⁴Se, p), E=4 MeV/nucleon; measured Ep, σ(θ). ⁸³Ge, ⁸⁵Se deduced ground and excited states energies, J, π.

doi: 10.1016/j.nimb.2005.07.025
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2005JO03      Phys.Rev. C 71, 024317 (2005)

M.S.Johnson, J.A.Cizewski, M.B.Smith, J.S.Thomas, J.A.Becker, L.A.Bernstein, A.Schiller, D.P.McNabb, P.Fallon, A.O.Macchiavelli

Population of superdeformed excitations in ¹⁹⁸Po

NUCLEAR REACTIONS ¹⁷⁴Yb(²⁹Si, 5n), E=148 MeV; measured Eγ, Iγ, γγ-coin. ¹⁹⁸Po deduced spin-energy entry distributions for superdeformed and normal-deformed rotational bands. Gammasphere array.

doi: 10.1103/PhysRevC.71.024317
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2005JO10      Phys.Rev. C 71, 044310 (2005)

M.S.Johnson, J.A.Cizewski, K.Y.Ding, N.Fotiades, M.B.Smith, J.S.Thomas, W.Younes, J.A.Becker, L.A.Bernstein, K.Hauschild, D.P.McNabb, M.A.Deleplanque, R.M.Diamond, P.Fallon, I.Y.Lee, A.O.Macchiavelli, F.S.Stephens

Quasicontinuous decay and properties of superdeformed excitations in ¹⁹⁵Pb

NUCLEAR REACTIONS ¹⁷⁴Yb(²⁶Mg, 5n), E=132 MeV; measured Eγ, Iγ, γγ-coin. ¹⁹⁵Pb deduced high-spin levels, J, π, superdeformed bands, quasi-continuum decay-out spectra. Gammasphere array.

doi: 10.1103/PhysRevC.71.044310
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Data from this article have been entered in the XUNDL database. For more information, click here.

2005JO23      Eur.Phys.J. A 25, Supplement 1, 283 (2005)

K.L.Jones, C.Baktash, D.W.Bardayan, J.C.Blackmon, W.N.Catford, J.A.Cizewski, R.P.Fitzgerald, U.Greife, M.S.Johnson, R.L.Kozub, R.J.Livesay, Z.Ma, C.D.Nesaraja, D.Shapira, M.S.Smith, J.S.Thomas, D.Visser

Developing techniques to study A ∼ 132 nuclei with (d, p) reactions in inverse kinematics

NUCLEAR REACTIONS ²H(¹²⁴Sn, p), E=4.5 MeV/nucleon; measured σ(θ). ¹²⁵Sn levels deduced spectroscopic factors. DWBA analysis.

doi: 10.1140/epjad/i2005-06-112-3
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2005TH03      Phys.Rev. C 71, 021302 (2005)

J.S.Thomas, D.W.Bardayan, J.C.Blackmon, J.A.Cizewski, U.Greife, C.J.Gross, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, D.Shapira, M.S.Smith

First study of the level structure of the r-process nucleus ⁸³Ge

NUCLEAR REACTIONS ²H(⁸²Ge, p), E=330 MeV; measured proton spectra, σ(θ), Q value. ⁸³Ge deduced levels, J, π, spectroscopic factors, mass excess.

doi: 10.1103/PhysRevC.71.021302
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1186. Data from this article have been entered in the XUNDL database. For more information, click here.

2005TH09      Nucl.Phys. A758, 663c (2005)

J.S.Thomas, D.W.Bardayan, J.C.Blackmon, J.A.Cizewski, R.P.Fitzgerald, U.Greife, C.J.Gross, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, D.Shapira, M.S.Smith, D.W.Visser

Neutron Single-Particle States in r-Process Nuclei Near Closed Shells

NUCLEAR REACTIONS ²H(⁸⁴Se, p), (¹²⁴Sn, p), E=4.5 MeV/nucleon; measured recoil proton spectra, σ(E, θ). ⁸⁵Se, ¹²⁵Sn deduced levels, J, π.

doi: 10.1016/j.nuclphysa.2005.05.119
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2005TH12      Eur.Phys.J. A 25, Supplement 1, 371 (2005)

J.S.Thomas, D.W.Bardayan, J.C.Blackmon, J.A.Cizewski, R.P.Fitzgerald, U.Greife, C.J.Gross, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, D.Shapira, M.S.Smith, D.W.Visser

Single-neutron excitations in neutron-rich N = 51 nuclei

NUCLEAR REACTIONS ²H(⁸²Ge, p), E=4 MeV/nucleon; ²H(⁸⁴Se, p), E=4.5 MeV/nucleon; measured Ep, recoil particle spectrum, proton angular distribution. ⁸³Ge, ⁸⁵Se deduced levels J, π, spectroscopic factors. DWBA analysis.

doi: 10.1140/epjad/i2005-06-127-8
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2004JO19      Phys.Rev. C 70, 067602 (2004)

K.L.Jones, R.L.Kozub, C.Baktash, D.W.Bardayan, J.C.Blackmon, W.N.Catford, J.A.Cizewski, R.P.Fitzgerald, M.S.Johnson, R.J.Livesay, Z.Ma, C.D.Nesaraja, D.Shapira, M.S.Smith, J.S.Thomas, D.W.Visser

Study of the ¹²⁴Sn(d, p) reaction in inverse kinematics close to the Coulomb barrier

NUCLEAR REACTIONS ²H(¹²⁴Sn, p), E=562 MeV; measured Ep, σ(θ). ¹²⁵Sn deduced levels, spectroscopic factors. DWBA analysis. Comparison with previous results.

doi: 10.1103/PhysRevC.70.067602
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1158.

2004TH12      Nucl.Phys. A746, 178c (2004)

J.S.Thomas, D.W.Bardayan, J.C.Blackmon, J.A.Cizewski, U.Greife, C.J.Gross, M.S.Johnson, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, B.H.Moazen, C.D.Nesaraja, D.Shapira, M.S.Smith

Studies of the neutron single-particle structure of exotic nuclei at the HRIBF

NUCLEAR REACTIONS ²H(⁸²Ge, p), E=4 MeV/nucleon; measured Ep, σ(θ). ⁸³Ge deduced levels.

doi: 10.1016/j.nuclphysa.2004.09.032
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1182. Data from this article have been entered in the XUNDL database. For more information, click here.