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NSR database version of May 22, 2024.

Search: Author = L.Roberts

Found 30 matches.

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2022SC17      J.Phys.(London) G49, 110502 (2022)

H.Schatz, A.D.Becerril Reyes, A.Best, E.F.Brown, K.Chatziioannou, K.A.Chipps, C.M.Deibel, R.Ezzeddine, D.K.Galloway, C.J.Hansen, F.Herwig, A.P.Ji, M.Lugaro, Z.Meisel, D.Norman, J.S.Read, L.F.Roberts, A.Spyrou, I.Tews, F.X.Timmes, C.Travaglio, N.Vassh, C.Abia, P.Adsley, S.Agarwal, M.Aliotta, W.Aoki, A.Arcones, A.Aryan, A.Bandyopadhyay, A.Banu, D.W.Bardayan, J.Barnes, A.Bauswein, T.C.Beers, J.Bishop, T.Boztepe, B.Cote, M.E.Caplan, A.E.Champagne, J.A.Clark, M.Couder, A.Couture, S.E.de Mink, S.Debnath, R.J.deBoer, J.den Hartogh, P.Denissenkov, V.Dexheimer, I.Dillmann, J.E.Escher, M.A.Famiano, R.Farmer, R.Fisher, C.Frohlich, A.Frebel, C.Fryer, G.Fuller, A.K.Ganguly, S.Ghosh, B.K.Gibson, T.Gorda, K.N.Gourgouliatos, V.Graber, M.Gupta, W.C.Haxton, A.Heger, W.R.Hix, W.C.G.Ho, E.M.Holmbeck, A.A.Hood, S.Huth, G.Imbriani, R.G.Izzard, R.Jain, H.Jayatissa, Z.Johnston, T.Kajino, A.Kankainen, G.G.Kiss, A.Kwiatkowski, M.La Cognata, A.M.Laird, L.Lamia, P.Landry, E.Laplace, K.D.Launey, D.Leahy, G.Leckenby, A.Lennarz, B.Longfellow, A.E.Lovell, W.G.Lynch, S.M.Lyons, K.Maeda, E.Masha, C.Matei, J.Merc, B.Messer, F.Montes, A.Mukherjee, M.R.Mumpower, D.Neto, B.Nevins, W.G.Newton, L.Q.Nguyen, K.Nishikawa, N.Nishimura, F.M.Nunes, E.O'Connor, B.W.O'Shea, W.-J.Ong, S.D.Pain, M.A.Pajkos, M.Pignatari, R.G.Pizzone, V.M.Placco, T.Plewa, B.Pritychenko, A.Psaltis, D.Puentes, Y.-Z.Qian, D.Radice, D.Rapagnani, B.M.Rebeiro, R.Reifarth, A.L.Richard, N.Rijal, I.U.Roederer, J.S.Rojo, J.S K, Y.Saito, A.Schwenk, M.L.Sergi, R.S.Sidhu, A.Simon, T.Sivarani, A.Skuladottir, M.S.Smith, A.Spiridon, T.M.Sprouse, S.Starrfield, A.W.Steiner, F.Strieder, I.Sultana, R.Surman, T.Szucs, A.Tawfik, F.Thielemann, L.Trache, R.Trappitsch, M.B.Tsang, A.Tumino, S.Upadhyayula, J.O.Valle Martinez, M.Van der Swaelmen, C.Viscasillas Vazquez, A.Watts, B.Wehmeyer, M.Wiescher, C.Wrede, J.Yoon, R.G.T.Zegers, M.A.Zermane, M.Zingale, the Horizon 2020 Collaborations

Horizons: nuclear astrophysics in the 2020s and beyond

doi: https://dx.doi.org/10.1088/1361-6471/ac8890
Citations: PlumX Metrics


2020JI12      Nature(London) 588, 57 (2020)

S.Jin, L.F.Roberts, S.M.Austin, H.Schatz

Enhanced triple-α reaction reduces proton-rich nucleosynthesis in supernovae

NUCLEAR REACTIONS 8Be(α, X)12C, 4He(α, X)8Be, E<0.5 MeV; analyzed available data; deduced rate of the triple-α reaction, impact on the synthesis of heavy elements in the Ga-Cd range in proton-rich neutrino-driven outflows of core-collapse supernovae.

doi: 10.1038/s41586-020-2948-7
Citations: PlumX Metrics


2020RE04      Phys.Rev. C 101, 025803 (2020)

M.P.Reiter, S.Ayet San Andres, S.Nikas, J.Lippuner, C.Andreoiu, C.Babcock, B.R.Barquest, J.Bollig, T.Brunner, T.Dickel, J.Dilling, I.Dillmann, E.Dunling, G.Gwinner, L.Graham, C.Hornung, R.Klawitter, B.Kootte, A.A.Kwiatkowski, Y.Lan, D.Lascar, K.G.Leach, E.Leistenschneider, G.Martinez-Pinedo, J.E.McKay, S.F.Paul, W.R.Plass, L.Roberts, H.Schatz, C.Scheidenberger, A.Sieverding, R.Steinbrugge, R.Thompson, M.E.Wieser, C.Will, D.Welch

Mass measurements of neutron-rich gallium isotopes refine production of nuclei of the first r-process abundance peak in neutron-star merger calculations

ATOMIC MASSES 80,81,82,83,84,85Ga; measured time-of-flight spectra and mass excesses using the Ion Guide Laser Ion Source (IG-LIS) and Multiple-Reflection Time-of-Flight Mass-Spectrometer and isobar separator (MR-TOF-MS) at TRIUMF-TITAN facility; deduced solar r-process abundances for A=70-140. Comparison with AME-2016 values. Systematics of experimental and theoretical S(2n) values for Z=30-33, N=46-57 isotopes.

doi: 10.1103/PhysRevC.101.025803
Citations: PlumX Metrics


2019SC20      Phys.Rev. C 100, 055802 (2019)

A.S.Schneider, L.F.Roberts, C.D.Ott, E.O'Connor

Equation of state effects in the core collapse of a 20-M(.) star

doi: 10.1103/PhysRevC.100.055802
Citations: PlumX Metrics


2018RO06      Phys.Rev. C 97, 045804 (2018)

A.Roggero, J.Margueron, L.F.Roberts, S.Reddy

Nuclear pasta in hot dense matter and its implications for neutrino scattering

doi: 10.1103/PhysRevC.97.045804
Citations: PlumX Metrics


2017RO10      Phys.Rev. C 95, 045807 (2017)

L.F.Roberts, S.Reddy

Charged current neutrino interactions in hot and dense matter

NUCLEAR REACTIONS 1n(ν, e-)p, E=3-100 MeV; calculated contours of double-differential absorption rate, and angle integrated cross section as a function of electron scattering angle and energy transfer, mean free path as a function of total density, variation of charged current neutrino mean free path with the nucleon effective masses at saturation density, electron neutrinos; derived expressions for charged current neutrino interactions in the mean field approximation, including weak magnetism. Relevance to radiation hydrodynamic simulations of core-collapse supernovae and neutron star mergers.

doi: 10.1103/PhysRevC.95.045807
Citations: PlumX Metrics


2017SC26      Phys.Rev. C 96, 065802 (2017)

A.S.Schneider, L.F.Roberts, C.D.Ott

Open-source nuclear equation of state framework based on the liquid-drop model with Skyrme interaction

doi: 10.1103/PhysRevC.96.065802
Citations: PlumX Metrics


2012RO41      Phys.Rev. C 86, 065803 (2012)

L.F.Roberts, S.Reddy, G.Shen

Medium modification of the charged-current neutrino opacity and its implications

doi: 10.1103/PhysRevC.86.065803
Citations: PlumX Metrics


2007BA69      Phys.Rev. C 76, 045803 (2007)

D.W.Bardayan, J.C.Blackmon, R.P.Fitzgerald, W.R.Hix, K.L.Jones, R.L.Kozub, J.F.Liang, R.J.Livesay, Z.Ma, L.F.Roberts, M.S.Smith, J.S.Thomas, D.W.Visser

30S studied with the 32S(p, t)30S reaction and the 29P(p, γ)30S reaction rate

NUCLEAR REACTIONS 32S(p, t), E=37 MeV; measured triton energies, angular distributions. 30S deduced levels, J, π. 29P(p, γ)30S; deduced reaction rates of astrophysical significance.

doi: 10.1103/PhysRevC.76.045803
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Data from this article have been entered in the XUNDL database. For more information, click here.


2007MO20      Phys.Rev. C 75, 065801 (2007)

B.H.Moazen, D.W.Bardayan, J.C.Blackmon, K.Y.Chae, K.Chipps, C.P.Domizioli, R.Fitzgerald, U.Greife, W.R.Hix, K.L.Jones, R.L.Kozub, E.J.Lingerfelt, R.J.Livesay, C.D.Nesaraja, S.D.Pain, L.F.Roberts, J.F.Shriner, Jr., M.S.Smith, J.S.Thomas

Measurement of the 183 keV resonance in 17O(p, α)14N using a novel technique

NUCLEAR REACTIONS 1H(17O, α)14N, E=3.3 MeV; measured resonance energy and strength. Discussed astrophysical implications.

doi: 10.1103/PhysRevC.75.065801
Citations: PlumX Metrics

Data from this article have been entered in the EXFOR database. For more information, access X4 datasetC1567.


1973ER15      Phys.Rev. C8, 1916 (1973)

D.J.Erickson, J.F.Prince, L.D.Roberts

Thick-Absorber Line-Shape Analysis and Interference Effects in Mossbauer Absorption Spectra for the E2/M1 77.3-keV Transition of 197Au

NUCLEAR REACTIONS 197Au(γ, γ), Eγ=77.3 keV; measured Mossbauer effect. Deduced interference effect in absorption spectra.

doi: 10.1103/PhysRevC.8.1916
Citations: PlumX Metrics


1971ER18      Phys.Rev. B3, 2180 (1971)

D.J.Erickson, L.D.Roberts, J.W.Burton, J.O.Thomson

Precision Determinations of the Mossbauer Recoilless Fraction for Metallic Gold in the Temperature Range 4.2 < T < 100°K

NUCLEAR REACTIONS 197Au(γ, γ), E=77.3 keV measured; Mossbauer effect vs temperature. 197Au level deduced T1/2, α, γ-mixing.

doi: 10.1103/PhysRevB.3.2180
Citations: PlumX Metrics


1969RO09      Phys.Rev. 179, 656 (1969)

L.D.Roberts, D.O.Patterson, J.O.Thomson, R.P.Levey

Solid-State and Nuclear Results from a Measurement of the Pressure Dependence of the Energy of the Resonance Gamma Ray of 197Au

NUCLEAR REACTIONS 197Au(γ, γ), E=77 keV; measured Mossbauer effect, pressure dependence; deduced isomer shift.

doi: 10.1103/PhysRev.179.656
Citations: PlumX Metrics


1969TU02      Phys.Rev. 178, 998 (1969)

T.C.Tucker, L.D.Roberts, C.W.Nestor, Jr., T.A.Carlson, F.B.Malik

Relativistic Self-Consistent-Field Calculation of the Wave Functions, Eigenvalues, Isotope Shifts, and the 6S Hyperfine-Structure Coupling Constant as a Function of Pressure for Metallic Gold in the Wigner-Seitz Model

ATOMIC PHYSICS Au; calculated wave functions, eigenvalues, isotope shift , hfs coupling constant.

doi: 10.1103/PhysRev.178.998
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1968TU03      Phys.Rev. 174, 118 (1968)

T.C.Tucker, L.D.Roberts, C.W.Nestor, Jr., T.A.Carlson, F.B.Malik

Calculation of the Electron Binding Energies and X-Ray Energies for the Superheavy Elements 114, 126, and 140 Using Relativistic Self-Consistent-Field Atomic Wave Functions

ATOMIC PHYSICS Au, U; Z=114, 116, 140; calculated electron binding energies, X-ray energies.

doi: 10.1103/PhysRev.174.118
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1966NE10      ORNL-4027 (1966)

C.W.Nestor, T.C.Tucker, T.A.Carlson, L.D.Roberts, F.B.Malik, C.Froese

Relativistic and Non-Relativistic scf Wave Functions for Atoms and Ions from Z = 2 to 80, Together with Calculations of Binding Energies, Mean Radii, Screening Constants, Charge Distributions, and Electron Shake-Off Probabilities


1963RO05      Phys.Rev. 129, 664 (1963)

L.D.Roberts, J.O.Thomson

Solid State and Nuclear Results from a Mossbauer-Type Study of Au197

NUCLEAR STRUCTURE 197Au; measured not abstracted; deduced nuclear properties.

doi: 10.1103/PhysRev.129.664
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1962RO11      ORNL-3268, p.70 (1962); Priv.Comm. (Aug. 1962)

L.D.Roberts, J.O.Thomson

A Mossbauer Study of the 77-keV Gamma Transition of Au197 in a Series of Ferromagnetic Alloys. the Magnetic Moment of the First Excited State of Au197

NUCLEAR STRUCTURE 197Au; measured not abstracted; deduced nuclear properties.


1962RO28      Bull.Am.Phys.Soc. 7, 350, Wa13 (1962)

L.D.Roberts, J.O.Thomson

Isomer Shift and Magnetic Field at the Nucleus of Au197 in Au-Ni Alloys as a Function of Composition by the Mossbauer Method


1962TH06      Bull.Am.Phys.Soc. 7, No.4, 351, WA16 (1962)

J.O.Thomson, L.D.Roberts

Magnetic Moment of the First-Excited State of Au197 and the Effective Field at the Au Nucleus in 1% Alloys of Au with Fe, Co, and Ni

NUCLEAR STRUCTURE 197Au; measured not abstracted; deduced nuclear properties.


1961HA34      Phys.Rev. 124, 1512 (1961)

S.H.Hanauer, J.W.T.Dabbs, L.D.Roberts, G.W.Parker

Angular Distribution of Alpha Particles Emitted by Oriented Np237 Nuclei

NUCLEAR STRUCTURE 237Np; measured not abstracted; deduced nuclear properties.

doi: 10.1103/PhysRev.124.1512
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1961RO03      Bull.Am.Phys.Soc. 6, No.1, 75, Y11 (1961)

L.D.Roberts, J.O.Thomason

Study of the Mossbauer Method of the hfs Splitting of Au197 Alloyed in Fe

NUCLEAR STRUCTURE 197Au; measured not abstracted; deduced nuclear properties.


1961RO11      Bull.Am.Phys.Soc. 6, No.5, 462, F3 (1961)

L.D.Roberts, J.O.Thomson

Measurement of the Lifetime of the 77 keV Excited State of Au197 by the Mossbauer Method

NUCLEAR STRUCTURE 197Au; measured not abstracted; deduced nuclear properties.


1960DA09      ORNL-2910, p.60 (1960)

J.W.T.Dabbs, F.J.Walter, L.D.Roberts, G.W.Parker, J.O.Thomson

Fission Fragments from Aligned U233 and U235 Nuclei

NUCLEAR STRUCTURE, Fission 235U, 233U; measured not abstracted; deduced nuclear properties.


1960HA15      ORNL-2910, p.56 (1960)

S.H.Hanauer, J.W.T.Dabbs, L.D.Roberts, G.W.Parker

Angular Distribution of ALpha Particles Emitted by Oriented Np237 Nuclei

NUCLEAR STRUCTURE 239Np; measured not abstracted; deduced nuclear properties.


1960RO27      Proc.Intern.Conf.Nucl.Struct., Kingston, Canada, D.A.Bromley, E.W.Vogt, Eds., Univ.Toronto Press, p.884 (1960)

L.D.Roberts, F.J.Walter, J.W.T.Dabbs, G.W.Parker, J.O.Thomson

Fission Fragments from Oriented U233 and U235


1958DA21      Physica 24, S69 (1958)

J.W.T.Dabbs, L.D.Roberts, G.W.Parker

Alpha-Particle and Fission Anisotropies from Oriented Actinide Nuclei

doi: 10.1016/S0031-8914(58)80503-0
Citations: PlumX Metrics


1958RO64      Proc.Intern.Conf.Peaceful Uses At.Energy, 2nd, Geneva 15, 322 (1958)

L.D.Roberts, J.W.T.Dabbs, G.W.Parker

Alpha-Particle Emission from Oriented Np237 and U233 Nuclei


1955DA39      Phys.Rev. 98, 1512 (1955)

J.W.T.Dabbs, L.D.Roberts, S.Bernstein

"Brute Force" Polarization Of In115 Nuclei, Angular Momentum Of 1.458 E v Neutron Resonance

NUCLEAR REACTIONS 115In(n, n), E=1.458 eV; measured products; deduced resonance parameters. Data were imported from EXFOR entry 11967.

doi: 10.1103/PhysRev.98.1512
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset11967.


1954RO25      Phys.Rev. 95, 105 (1954)

L.D.Roberts, S.Bernstein, J.W.T.Dabbs, C.P.Stanford

Capture of Polarized Neutrons by Polarized Sm149 Nuclei

doi: 10.1103/PhysRev.95.105
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Data from this article have been entered in the EXFOR database. For more information, access X4 dataset12148.


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Note: The following list of authors and aliases matches the search parameter L.Roberts: , L.D.ROBERTS, L.F.ROBERTS