NSR Query Results
Output year order : Descending NSR database version of May 3, 2024. Search: Author = G.Mitchell Found 236 matches. Showing 1 to 100. [Next]2022KN01 Phys.Rev. C 106, 034607 (2022) I.Knapova, S.Valenta, B.Baramsai, T.A.Bredeweg, A.Couture, C.Fry, M.Jandel, J.Kroll, M.Krticka, G.E.Mitchell, J.M.O'Donnell, C.J.Prokop, G.Rusev, J.L.Ullmann Spin assignment and statistical properties of neutron resonances from 161, 163Dy(n, γ) and 167Er(n, γ) measured at the DANCE facility NUCLEAR REACTIONS 161,163Dy, 167Er(n, γ), E=2-345 eV; measured Eγ, Iγ, γγ-coin, γ-sum energy; deduced J, resonances parameters, average resonance spacings. Checked the ratio of spacings for the two spins formed in s-wave resonance capture against predictions of different nuclear level density models. Comparison to other experimental data, Mughabghab "Atlas of Neutron Resonances" evaluation and TALYS calculations. Highly segmented γ-ray calorimeter Detector for Advanced Neutron Capture Experiments (DANCE) consisting of 160 BaF2 crystals the Los Alamos Neutron Science Center.
doi: 10.1103/PhysRevC.106.034607
2017UL01 Phys.Rev. C 96, 024627 (2017), Erratum Phys.Rev. C 96, 019902 (2017) J.L.Ullmann, T.Kawano, B.Baramsai, T.A.Bredeweg, A.Couture, R.C.Haight, M.Jandel, J.M.O'Donnell, R.S.Rundberg, D.J.Vieira, J.B.Wilhelmy, M.Krticka, J.A.Becker, A.Chyzh, C.Y.Wu, G.E.Mitchell Constraining the calculation of 234, 236, 238U (n, γ) cross sections with measurements of the γ-ray spectra at the DANCE facility NUCLEAR REACTIONS 234U(n, γ), E=31, 77 eV; 236U(n, γ), E=44, 71 eV; 238U(n, γ), E=21, 36, 66, 102 eV; measured Eγ, Iγ for 1/2+ neutron-resonances using the Detector for Advanced Neutron Capture Experiments (DANCE) at Los Alamos Neutron Science Center (LANSC); deduced total radiation widths Γγ of s-wave 1/2+ resonances using different models of photon strength function (PSF) and nuclear level-density (NLD) parametrizations, and significant contribution to Γγ from a resonance structure at Eγ=2-3 MeV, identified with the M1 scissors mode; comparison of measured and summed γ spectra with calculations using the PSF and NLD parameters obtained from the Oslo method, from renormalized Oslo results, from systematics used in the CoH3 code, and from the MGLO and CoH3 models for the E1 strength. 234,236,238U(n, γ), E=1-500 keV; calculated σ(E) and compared with previous experimental data listed in the EXFOR database, and with ENDFB/VII-1 evaluation.
doi: 10.1103/PhysRevC.96.024627
2017VA25 Phys.Rev. C 96, 054315 (2017) S.Valenta, B.Baramsai, T.A.Bredeweg, A.Couture, A.Chyzh, M.Jandel, J.Kroll, M.Krticka, G.E.Mitchell, J.M.O'Donnell, G.Rusev, J.L.Ullmann, C.L.Walker Examination of photon strength functions for 162, 164Dy from radiative capture of resonance neutrons NUCLEAR REACTIONS 161,163Dy(n, γ), E=10-40 s-wave neutrons; measured time-of-flight spectrum for neutrons, Eγ, Iγ using segmented γ-ray calorimeter Detector for Advanced Neutron Capture Experiments (DANCE), an array of BaF2 scintillators at Los Alamos Neutron Science Center (LANSCE) spallation neutron source; deduced neutron resonances, cluster multiplicities, multistep cascade (MSC) spectra, E1 and M1 photon strength functions (PSFs) as function of γ-ray energy, total radiation widths, scissors mode, nuclear level density. Comparison with other experimental data, and with statistical model calculations.
doi: 10.1103/PhysRevC.96.054315
2015WA18 Phys.Rev. C 92, 014324 (2015) C.L.Walker, M.Krticka, B.Baramsai, F.Becvar, T.A.Bredeweg, A.Chyzh, R.C.Haight, M.Jandel, J.Kroll, G.E.Mitchell, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, S.Valenta, J.B.Wilhelmy Measurement of the 97Mo(n, γ) reaction with the DANCE γ calorimeter array NUCLEAR REACTIONS 97Mo(n, γ), E<1.7 eV. Measured Eγ, Iγ, multistep gamma cascades (MSCs) with the DANCE array of 160 BaF2 detectors at the LANSCE-LANL facility. 98Mo; deduced neutron resonances, J, π, neutron widths, photon-strength functions (PSFs), simulated total radiation width of resonances for all considered model combinations. Analysis using DICEBOX statistical computer code. 93,95,99Mo, 94Nb, 100Ru; deduced photon-strength functions (PSFs) using averaged s-wave resonance spacings D0 from literature. Comparison with statistical model calculations.
doi: 10.1103/PhysRevC.92.014324
2014KR08 Nucl.Data Sheets 119, 158 (2014) J.Kroll, U.Agvaanluvsan, B.Baramsai, J.A.Becker, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, G.E.Mitchell, J.M.O'Donnell, W.Parker, R.S.Rundberg, J.L.Ullmann, S.Valenta, D.J.Vieira, C.L.Walker, J.B.Wilhelmy, J.M.Wouters, C.Y.Wu Systematics of Scissors Mode in Gd Nuclei from Experiments with the DANCE Detector NUCLEAR REACTIONS 152,154,155,156,157,158Gd(n, γ), E=subthermal-1 MeV; measured Eγ, Iγ using ToF LANSCE/DANCE array (BaF2); calculated γ emission, γ cascades using MSC code DICEBOX with fitted parameters and all models of RIPL-3; deduced M1 scissors mode vibrations; calculated scissors mode B(M1) vs deformation for (n, γ), (γ, γ') and 3He-induced reactions data.
doi: 10.1016/j.nds.2014.08.044
2014UL01 Phys.Rev. C 89, 034603 (2014) J.L.Ullmann, T.Kawano, T.A.Bredeweg, A.Couture, R.C.Haight, M.Jandel, J.M.O'Donnell, R.S.Rundberg, D.J.Vieira, J.B.Wilhelmy, J.A.Becker, A.Chyzh, C.Y.Wu, B.Baramsai, G.E.Mitchell, M.Krticka Cross section and γ-ray spectra for 238U(n, γ) measured with the DANCE detector array at the Los Alamos Neutron Science Center NUCLEAR REACTIONS 238U(n, γ), E=1-500 keV; measured Eγ, Iγ, σ(E) using DANCE array at LANSCE-LLNL spallation neutron source facility. Comparison with Hauser-Feshbach calculations using CoH3 computer code and cascade spectra calculations by DICEBOX code using level data from ENSDF database, with evaluated cross section in ENDF/B-VII.1, and with previous experimental data. M1 scissors mode contribution to the radiative strength function.
doi: 10.1103/PhysRevC.89.034603
2014UL02 Nucl.Data Sheets 119, 22 (2014) J.L.Ullmann, S.Mosby, T.A.Bredeweg, A.J.Couture, R.C.Haight, M.Jandel, T.Kawano, J.M.O'Donnell, R.S.Rundberg, D.J.Vieira, J.B.Wilhelmy, C.-Y.Wu, J.A.Becker, A.Chyzh, B.Baramsai, G.E.Mitchell, M.Krticka Neutron Capture Cross Sections and Gamma Emission Spectra from Neutron Capture on 234, 236, 238U Measured with DANCE NUCLEAR REACTIONS 234,236,238U(n, γ), E=10 eV-700 keV; measured Eγ, Iγ using DANCE at LANSCE; deduced two-step cascade γ-ray spectrum. 238U deduced σ. Cross sections compared with data and ENDF/B-VII.
doi: 10.1016/j.nds.2014.08.008
2013BA15 Phys.Rev. C 87, 044609 (2013) B.Baramsai, J.Kroll, G.E.Mitchell, U.Agvaanluvsan, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, C.L.Walker Photon strength functions of 156Gd from radiative capture of resonance neutrons NUCLEAR REACTIONS 155Gd(n, γ), E=7.8, 21.0 eV; measured Eγ, Iγ, sum energy spectra, cluster multiplicity of γ cascades using DANCE γ-ray calorimeter at LANSCE facility; deduced spectra of multistep γ cascades (MSCs) and those of gated MSCs, E1 and M1 photon strength functions, scissors mode. DICEBOX algorithm. Validity of various photon strength functions (PSF), and nuclear level density (NLD) models Comparison with previous experimental studies, and with theoretical calculations.
doi: 10.1103/PhysRevC.87.044609
2013KR07 Phys.Scr. T154, 014009 (2013) J.Kroll, F.Becvar, M.Krticka, S.Valenta, B.Baramsai, G.E.Mitchell, C.L.Walker, T.A.Bredeweg, A.Couture, R.C.Haight, M.Jandel, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters, J.A.Becker, A.Chyzh, D.Dashdorj, W.Parker, C.Y.Wu Scissors mode of Gd nuclei measured, with the DANCE detector NUCLEAR REACTIONS 152,154,155,156,157,158Gd(n, γ), E<1 MeV; measured reaction products, Eγ, Iγ; deduced photon strength, summed scissors-mode strength B(M1). Comparison with available data.
doi: 10.1088/0031-8949/2013/T154/014009
2013KR11 Phys.Rev. C 88, 034317 (2013) J.Kroll, B.Baramsai, G.E.Mitchell, U.Agvaanluvsan, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, J.M.O'Donnell, W.Parker, R.S.Rundberg, J.L.Ullmann, S.Valenta, D.J.Vieira, C.Walker, C.Y.Wu Strength of the scissors mode in odd-mass Gd isotopes from the radiative capture of resonance neutrons NUCLEAR REACTIONS 152,154,156,158Gd(n, γ), E<1 MeV white neutron spectrum; measured multistep cascade (MSC) γ spectra for different multiplicities and several resolved s-wave resonances using DANCE array at LANSCE, LANL facility; deduced E1 and M1 photon strength functions, level density. GEANT4-based simulations. Comparison with several model calculations of photon strength functions (PSF) and nuclear level densities (NLD) for deformed nuclei, and with experimental data from other reactions. Discussed scissors mode in odd-A Gd isotopes from summed reduced M1 strengths. Evidence of odd-even effect in strength of scissors mode.
doi: 10.1103/PhysRevC.88.034317
2013PO05 Phys.Rev. C 88, 015808 (2013) I.Pogrebnyak, C.Howard, C.Iliadis, R.Longland, G.E.Mitchell Mean proton and α-particle reduced widths of the Porter-Thomas distribution and astrophysical applications NUCLEAR REACTIONS 27Al, 31P, 35Cl, 39K(p, α); 33S, 35Cl, 39K, 42Ca, 44Ca, 46Ti, 48Ti, 50Cr, 52Cr, 54Cr, 54Fe, 56Fe, 60Ni, 64Zn, 66Zn(p, p); analyzed previous experimental resonance data collected at TUNL facility. 28Si, 32S, 34Cl, 36Ar, 40Ca, 43,45Sc, 47,49V, 51,53,55Mn, 55,57Co, 61Cu, 65Ge, 67Ga; deduced mean reduced proton width and α widths. Porter-Thomas distributions. 40Ti(α, γ)44Ti; deduced thermonuclear reaction rates based on mean reduced α widths. Impact on 44Ti abundance in core-collapse novae.
doi: 10.1103/PhysRevC.88.015808
2012BA07 Phys.Rev. C 85, 024622 (2012) B.Baramsai, G.E.Mitchell, U.Agvaanluvsan, F.Becvar, T.A.Bredeweg, A.Chyzh, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, A.L.Keksis, M.Krticka, J.M.O'Donnell, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, C.L.Walker Neutron resonance parameters in 155Gd measured with the DANCE γ-ray calorimeter array NUCLEAR REACTIONS 155Gd(n, γ), E=1.36-185 eV; measured neutron spectra by time-of-flight, E(n), I(n), Eγ, sum-energy spectra, average γ-ray multiplicity of s-wave resonances, cross sections using DANCE calorimeter at LANSC. 156Gd; deduced resonances, spins by various methods, resonance parameters, s-wave level density, normalized yields for J=1 and J=2 resonances, neutron and radiative width, Sammy fit of experimental cross sections. Comparison with previous studies, and ENDF/B-VII.0, JENDL-4.0, JEFF-3.1, ROSFOND-2010 libraries.
doi: 10.1103/PhysRevC.85.024622
2012ST15 Nucl.Phys. A895, 33 (2012) S.L.Stephenson, B.E.Crawford, W.I.Furman, E.V.Lychagin, A.Yu.Muzichka, G.V.Nekhaev, E.I.Sharapov, V.N.Shvetsov, A.V.Strelkov, B.G.Levakov, A.E.Lyzhin, Yu.I.Chernukhin, C.R.Howell, G.E.Mitchell, W.Tornow, R.A.Showalter-Bucher Experiment on direct nn scattering - The radiation-induced outgassing complication NUCLEAR REACTIONS 1n(n, n), E=thermal[thermalized from YAGUAR pulsed reactor]; measured En, In using 3He thick and thin ionization detector and n4He ToF; analyzed feasibility to deduce σnn, neutron-neutron scattering length, neutron-neutron interaction, electron energy deposition in walls and radiation-induced desorption.
doi: 10.1016/j.nuclphysa.2012.09.005
2011BE58 Nucl.Instrum.Methods Phys.Res. A647, 73 (2011) F.Becvar, P.E.Koehler, M.Krticka, G.E.Mitchell, J.L.Ullmann Optimized γ-multiplicity-based spin assignments of s-wave neutron resonances NUCLEAR REACTIONS 147,149Sm(n, γ), E<600 eV; analyzed available data; deduced yields, neutron resonance parameters. Comparison with available data.
doi: 10.1016/j.nima.2011.04.026
2011CH31 Phys.Rev. C 84, 014306 (2011) A.Chyzh, B.Baramsai, J.A.Becker, F.Becvar, T.A.Bredeweg, A.Couture, D.Dashdorj, R.C.Haight, M.Jandel, J.Kroll, M.Krticka, G.E.Mitchell, J.M.O'Donnell, W.Parker, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, C.L.Walker, J.B.Wilhelmy, J.M.Wouters, C.Y.Wu Measurement of the 157Gd(n, γ) reaction with the DANCE γ calorimeter array NUCLEAR REACTIONS 157Gd(n, γ), E=<300 eV; measured Eγ, Iγ using DANCE γ calorimeter. 158Gd; deduced E1, M1 and E1 photon strength distributions, resonances, multiplicity, spin distribution, multistep cascade (MSC) spectra. Statistical model calculations using DICEBOX code. Scissors mode.
doi: 10.1103/PhysRevC.84.014306
2011UL01 J.Korean Phys.Soc. 59, 1406s (2011) J.L.Ullmann, A.J.Couture, A.L.Keksis, D.J.Vieira, J.M.O'Donnell, J.M.Wouters, M.Jandel, R.C.Haight, R.S.Rundberg, T.A.Bredeweg, T.Kawano, C.Y.Wu, J.A.Becker, A.Chyzh, B.Baramsai, G.E.Mitchell, M.Krticka Measurement of the 238U Neutron-capture Cross Section and Gamma-emission Spectra from 10 eV to 100 keV Using the DANCE Detector at LANSCE NUCLEAR REACTIONS 238U(n, γ), E=10 eV-100 keV; measured Eγ, Iγ, γγ-coin using DANCE at LANSCE; deduced σ, γ multiplicity, 36 eV resonance σ(Eγ); calculated γ multiplicity, σ(Eγ) using DICEBOX code.
doi: 10.3938/jkps.59.1406
2010DA13 Nucl.Instrum.Methods Phys.Res. B268, 114 (2010) D.Dashdorj, G.E.Mitchell, T.Kawano, M.Devlin, N.Fotiades, R.O.Nelson, J.A.Becker, C.Y.Wu, P.E.Garrett, S.Kuneida (n, 2n) and (n, 3n) cross-sections of neutron-induced reactions on 150Sm for En=1-35 MeV NUCLEAR REACTIONS 150Sm(n, 2n), (n, 3n), (n, 2nγ), (n, 3nγ), E<35 MeV; measured TOF, Eγ, Iγ; deduced σ. Comparison with FKK GNASH calculations.
doi: 10.1016/j.nimb.2009.10.189
2010TO06 Phys.Rev. C 81, 064311 (2010) H.K.Toft, A.C.Larsen, U.Agvaanluvsan, A.Burger, M.Guttormsen, G.E.Mitchell, H.T.Nyhus, A.Schiller, S.Siem, N.U.H.Syed, A.Voinov Level densities and γ-ray strength functions in Sn isotopes NUCLEAR REACTIONS 119Sn(3He, 3He), (3He, α), E=38 MeV; measured Eγ, particle-γ coin. 118,119Sn; deduced γ-ray strength functions, level densities, parity asymmetry functions, collective enhancement factors, and spin distributions. Oslo method. Combinatorial BCS model.
doi: 10.1103/PhysRevC.81.064311
2009AG01 Phys.Rev. C 79, 014320 (2009) U.Agvaanluvsan, A.C.Larsen, M.Guttormsen, R.Chankova, G.E.Mitchell, A.Schiller, S.Siem, A.Voinov Evidence for the pair-breaking process in 116, 117Sn NUCLEAR REACTIONS 117Sn(3He, αγ), (3He, 3He'γ), E=38 MeV; measured Eγ, Iγ, particle spectra, (particle)γ-coin. 116,117Sn; deduced excitation energies, entropies, level densities, microcanonical temperatures.
doi: 10.1103/PhysRevC.79.014320
2009AG03 Phys.Rev.Lett. 102, 162504 (2009) U.Agvaanluvsan, A.C.Larsen, R.Chankova, M.Guttormsen, G.E.Mitchell, A.Schiller, S.Siem, A.Voinov Enhanced Radiative Strength in the Quasicontinuum of 117Sn NUCLEAR REACTIONS 117Sn(3He, 3He'), E=38 MeV; measured Eγ, Iγ, 7radiative strength function. 117Sn; deduced level density.
doi: 10.1103/PhysRevLett.102.162504
2009SH05 Phys.Rev. C 79, 024301 (2009) S.A.Sheets, U.Agvaanluvsan, J.A.Becker, F.Becvar, T.A.Bredeweg, R.C.Haight, M.Jandel, M.Krticka, G.E.Mitchell, J.M.O'Donnell, W.Parker, R.Reifarth, R.S.Rundberg, E.I.Sharapov, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters, C.Y.Wu Test of the statistical model in 96Mo with the BaF2γ calorimeter DANCE array NUCLEAR REACTIONS 95Mo(n, γ), E<2 keV; measured Eγ, Iγ, from multi-step γ cascades for s- and p-wave neutron resonances below 2 keV. Compared γ spectral shapes to DICEBOX statistical model simulations. Compared multi-step γ-cascade spectra for different multiplicities from various resonances with predictions of different photon strength function models.
doi: 10.1103/PhysRevC.79.024301
2008AL35 Phys.Rev. C 78, 054321 (2008) E.Algin, U.Agvaanluvsan, M.Guttormsen, A.C.Larsen, G.E.Mitchell, J.Rekstad, A.Schiller, S.Siem, A.Voinov Thermodynamic properties of 56, 57Fe NUCLEAR REACTIONS 57Fe(3He, 3He'γ), (3He, αγ), E=45 MeV; measured Eγ, Iγ, (particle)γ-coin. Deduced level densities, thermodynamic properties.
doi: 10.1103/PhysRevC.78.054321
2008KR04 Phys.Rev. C 77, 054319 (2008) M.Krticka, F.Becvar, I.Tomandl, G.Rusev, U.Agvaanluvsan, G.E.Mitchell Two-step gamma cascades following thermal neutron capture in 95Mo NUCLEAR REACTIONS 94Mo(n, γ), E=thermal; measured Eγ, Iγ, γγ-coin, two-step γ cascades, σγ, , multipolarities. 95Mo; deduced levels, J, π, level densities. 96Mo(3He, 3He), 97Mo(3He, αγ); systematics.
doi: 10.1103/PhysRevC.77.054319
2007AG09 Nucl.Instrum.Methods Phys.Res. B261, 934 (2007) U.Agvaanluvsan, J.A.Becker, R.A.Macri, W.Parker, P.Wilk, C.Y.Wu, T.A.Bredeweg, E.Esch, R.C.Haight, J.M.O'Donnell, R.Reifarth, R.S.Rundberg, J.M.Schwantes, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters, G.E.Mitchell, S.Sheets, F.Becvar, M.Krticka Progress on the europium neutron capture study using DANCE NUCLEAR REACTIONS 151,153Eu(n, γ), E=0.1-100 keV; measured Eγ, Iγ, and multiplicity distributions.
doi: 10.1016/j.nimb.2007.03.107
2007AL49 Phys.Atomic Nuclei 70, 1634 (2007) E.Algin, A.Schiller, A.Voinov, U.Agvaanluvsan, T.Belgya, L.A.Bernstein, C.R.Brune, R.Chankova, P.E.Garrett, S.M.Grimes, M.Guttormsen, M.Hjorth-Jensen, M.J.Hornish, C.W.Johnson, T.Massey, G.E.Mitchell, J.Rekstad, S.Siem, W.Younes Bulk properties of iron isotopes NUCLEAR REACTIONS 57Fe(3He, α), (3He, 3He'), E=45 MeV; 56Fe(n, γ), E=thermal; 55Mn(d, n), E=7.0 MeV; measured Eγ, Iγ. Deduced nuclear level densities and radiative strength functions. Compared results to model calculations.
doi: 10.1134/S1063778807090232
2007DA21 Phys.Rev. C 75, 054612 (2007) D.Dashdorj, T.Kawano, P.E.Garrett, J.A.Becker, U.Agvaanluvsan, L.A.Bernstein, M.B.Chadwick, M.Devlin, N.Fotiades, G.E.Mitchell, R.O.Nelson, W.Younes Effect of preequilibrium spin distribution on 48Ti + n cross sections NUCLEAR REACTIONS 48Ti(n, n'γ), (n, 2nγ), E=1-35 MeV; calculated discrete γ-ray production cross section using Hauser-Feshbach formalism with spin distribution for the preequlibrium process calculated using the Feshbach-Kerman-Koonin theory. Compared results to experimental data.
doi: 10.1103/PhysRevC.75.054612
2007DA23 Nucl.Instrum.Methods Phys.Res. B261, 948 (2007) D.Dashdorj, G.E.Mitchell, T.Kawano, J.A.Becker, U.Agvaanluvsan, M.B.Chadwick, J.R.Cooper, M.Devlin, N.Fotiades, P.E.Garrett, R.O.Nelson, C.Y.Wu, W.Younes Neutron induced inelastic cross-sections of 150Sm for En = 1-35 MeV NUCLEAR REACTIONS 150Sm(n, γ), E=1-35 MeV; measured Eγ, Iγ, excitation functions and partial γ-ray production cross sections. Compared results to model calculations.
doi: 10.1016/j.nimb.2007.04.161
2007DA24 Nucl.Sci.Eng. 157, 65 (2007) D.Dashdorj, G.E.Mitchell, J.A.Becker, U.Agvaanluvsan, L.A.Bernstein, W.Younes, P.E.Garrett, M.B.Chadwick, M.Devlin, N.Fotiades, T.Kawano, R.O.Nelson Gamma-Ray Production Cross Sections in Multiple Channels for Neutron-Induced Reaction on 48Ti for En = 1 to 200 MeV NUCLEAR REACTIONS 48Ti(n, γX), E=1-200 MeV; measured prompt γ-ray production cross sections. Compared results to model calculations.
doi: 10.13182/NSE07-A2713
2007MU11 Nucl.Phys. A789, 30 (2007) A.Yu.Muzichka, W.I.Furman, E.V.Lychagin, A.R.Krylov, G.V.Nekhaev, E.I.Sharapov, V.N.Shvetsov, A.V.Strelkov, B.G.Levakov, A.E.Lyzhin, Yu.I.Chernukhin, Ya.Z.Kandiev, C.R.Howell, G.E.Mitchell, B.E.Crawford, S.L.Stephenson, W.Tornow, and the DIANNA Collaboration Background determination for the neutron-neutron scattering experiment at the reactor YAGUAR
doi: 10.1016/j.nuclphysa.2007.03.163
2007SH46 Phys.Rev. C 76, 064317 (2007) S.A.Sheets, U.Agvaanluvsan, J.A.Becker, F.Becvar, T.A.Bredeweg, R.C.Haight, M.Krticka, M.Jandel, G.E.Mitchell, J.M.O'Donnell, W.E.Parker, R.Reifarth, R.S.Rundberg, E.I.Sharapov, I.Tomandl, J.L.Ullmann, D.J.Vieira, J.M.Wouters, J.B.Wilhelmy, C.Y.Wu Spin and parity assignments for 94, 95Mo neutron resonances NUCLEAR REACTIONS 94,95Mo(n, γ), E=800 MeV; measured neutron energies, Eγ, Iγ, γ-ray multiplicities. 95,96Mo; deduced neutron resonance levels, J, π.
doi: 10.1103/PhysRevC.76.064317
2006CH14 Phys.Rev. C 73, 034311 (2006) R.Chankova, A.Schiller, U.Agvaanluvsan, E.Algin, L.A.Bernstein, M.Guttormsen, F.Ingebretsen, T.Lonnroth, S.Messelt, G.E.Mitchell, J.Rekstad, S.Siem, A.C.Larsen, A.Voinov, S.Odegard Level densities and thermodynamical quantities of heated 93-98Mo isotopes NUCLEAR REACTIONS 94,96Mo(3He, 3He'), (3He, α), E=30 MeV; 98Mo(3He, 3He'), (3He, α), E=45 MeV; measured particle spectra, Eγ, Iγ, (particle)γ-coin. 93,94,95,96,97,98Mo deduced level densities; deduced thermodynamical quantities, phase transition features.
doi: 10.1103/PhysRevC.73.034311
2006GE20 Phys.Rev.C 74, 065503 (2006) M.T.Gericke, J.D.Bowman, R.D.Carlini, T.E.Chupp, K.P.Coulter, M.Dabaghyan, M.Dawkins, D.Desai, S.J.Freedman, T.R.Gentile, R.C.Gillis, G.L.Greene, F.W.Hersman, T.Ino, G.L.Jones, M.Kandes, B.Lauss, M.Leuschner, W.R.Lozowski, R.Mahurin, M.Mason, Y.Masuda, G.S.Mitchell, S.Muto, H.Nann, S.A.Page, S.I.Penttila, W.D.Ramsay, S.Santra, P.-N.Seo, E.I.Sharapov, T.B.Smith, W.M.Snow, W.S.Wilburn, V.Yuan, H.Zhu, and the NPDGamma Collaboration Upper bounds on parity-violating γ-ray asymmetries in compound nuclei from polarized cold neutron capture NUCLEAR REACTIONS B, C, 27Al, Cu, 115In(polarized n, γ), E=low; measured Eγ, Iγ(θ); deduced upper bounds on parity-violating γ-ray asymmetry.
doi: 10.1103/PhysRevC.74.065503
2006KA40 Phys.Rev. C 74, 024325 (2006) K.Kaneko, M.Hasegawa, U.Agvaanluvsan, E.Algin, R.Chankova, M.Guttormsen, A.C.Larsen, G.E.Mitchell, J.Rekstad, A.Schiller, S.Siem, A.Voinov Breaking of nucleon Cooper pairs at finite temperature in 93-98Mo NUCLEAR STRUCTURE 93,94,95,96,97,98Mo; calculated level densities, heat capacities, pair correlation features.
doi: 10.1103/PhysRevC.74.024325
2006VO06 Phys.Rev. C 74, 014314 (2006) A.V.Voinov, S.M.Grimes, U.Agvaanluvsan, E.Algin, T.Belgya, C.R.Brune, M.Guttormsen, M.J.Hornish, T.Massey, G.E.Mitchell, J.Rekstad, A.Schiller, S.Siem Level density of 56Fe and low-energy enhancement of γ-strength function NUCLEAR REACTIONS 55Mn(d, n), E=7 MeV; measured En, σ(E, θ). 56Fe deduced level density, γ-strength function.
doi: 10.1103/PhysRevC.74.014314
2005AG15 Nucl.Instrum.Methods Phys.Res. B241, 180 (2005) U.Agvaanluvsan, E.Algin, J.A.Becker, M.Guttormsen, G.E.Mitchell, S.Siem, A.Schiller, A.Voinov Investigation of the radiative strength function NUCLEAR REACTIONS 57Fe, 171Yb(3He, 3He'), E=38-45 MeV; 117Sn, 172Yb(3He, α), E=38-45 MeV; measured Eγ, Iγ, (particle)γ-coin; deduced radiative strength functions.
doi: 10.1016/j.nimb.2005.07.081
2005CR08 Nucl.Instrum.Methods Phys.Res. B241, 190 (2005) B.E.Crawford, W.I.Furman, C.R.Howell, E.V.Lychagin, B.G.Levakov, V.I.Litvin, A.E.Lyzhin, E.P.Magda, G.E.Mitchell, A.Yu.Muzichka, G.V.Nekhaev, E.I.Sharapov, V.N.Shvetsov, S.L.Stephenson, A.V.Strelkov, W.Tornow Direct nn-scattering at the YAGUAR reactor
doi: 10.1016/j.nimb.2005.07.023
2005DA33 J.Res.Natl.Inst.Stand.Technol. 110, 485 (2005) E.D.Davis, C.R.Gould, G.E.Mitchell, E.I.Sharapov Bounds on Time Reversal Violation From Polarized Neutron Capture With Unpolarized Targets
doi: 10.6028/jres.110.075
2005GE07 J.Res.Natl.Inst.Stand.Technol. 110, 215 (2005) M.T.Gericke, J.D.Bowman, R.D.Carlini, T.E.Chupp, K.P.Coulter, M.Dabaghyan, D.Desai, S.J.Freeman, T.R.Gentile, R.C.Gillis, G.L.Greene, F.W.Hersman, T.Ino, S.Ishimoto, G.L.Jones, B.Lauss, M.B.Leuschner, B.Losowski, R.Mahurin, Y.Masuda, G.S.Mitchell, S.Muto, H.Nann, S.A.Page, S.I.Penttila, W.D.Ramsay, S.Santra, P.-N.Seo, E.I.Sharapov, T.B.Smith, W.M.Snow, W.S.Wilburn, V.Yuan, H.Zhu Commissioning of the NPDGamma Detector Array: Counting Statistics in Current Mode Operation and Parity Violation in the Capture of Cold Neutrons on B4C and 27Al NUCLEAR REACTIONS 10B, 27Al(polarized n, γ), E=low; measured parity-violating γ-ray asymmetry.
doi: 10.6028/jres.110.027
2005GU16 Phys.Rev. C 71, 044307 (2005) M.Guttormsen, R.Chankova, U.Agvaanluvsan, E.Algin, L.A.Bernstein, F.Ingebretsen, T.Lonnroth, S.Messelt, G.E.Mitchell, J.Rekstad, A.Schiller, S.Siem, A.C.Sunde, A.Voinov, S.Odegard Radiative strength functions in 93-98Mo NUCLEAR REACTIONS 94,96Mo(3He, 3He'), (3He, α), E=30 MeV; 97,98Mo(3He, 3He'), (3He, α), E=45 MeV; measured particle spectra, Eγ, Iγ, (particle)γ-coin. 93,94,95,96,97,98Mo deduced radiative strength functions.
doi: 10.1103/PhysRevC.71.044307
2005LO06 Phys.Rev. C 71, 064315 (2005) S.J.Lokitz, G.E.Mitchell, J.F.Shriner, Jr. Test of 45Sc level densities with proton resonances NUCLEAR REACTIONS 44Ca(p, p), (p, p'), E=2.50-3.53 MeV; measured Ep, σ(E, θ). 45Sc deduced resonance parameters, level densities.
doi: 10.1103/PhysRevC.71.064315
2005MI17 J.Res.Natl.Inst.Stand.Technol. 110, 225 (2005) G.E.Mitchell, W.I.Furman, E.V.Lychagin, A.Yu.Muzichka, G.V.Nekhaev, A.V.Strelkov, E.I.Sharapov, V.N.Shvetsov, Yu.I.Chernukhin, B.G.Levakov, V.I.Litvin, A.E.Lyzhin, E.P.Magda, B.E.Crawford, S.L.Stephenson, C.R.Howell, W.Tornow Direct nn-Scattering Measurement With the Pulsed Reactor YAGUAR
doi: 10.6028/jres.110.029
2005MI36 Braz.J.Phys. 35, 850 (2005) G.E.Mitchell, W.I.Furman, E.V.Lychagin, A.Yu.Muzichka, G.V.Nekhaev, A.V.Strelkov, E.I.Sharapov, V.N.Shvetsov, B.G.Levakov, V.I.Litvin, A.E.Lyzhin, E.P.Magda, B.E.Crawford, S.L.Stephenson, C.R.Howell, W.Tornow A Direct Measurement of the Neutron-Neutron Scattering Length
doi: 10.1590/S0103-97332005000500036
2005PA37 J.Res.Natl.Inst.Stand.Technol. 110, 195 (2005) S.A.Page, J.D.Bowman, R.D.Carlini, T.Case, T.E.Chupp, K.P.Coulter, M.Dabaghyan, D.Desai, S.J.Freedman, T.R.Gentile, M.T.Gericke, R.C.Gillis, G.L.Greene, F.W.Hersman, T.Ino, S.Ishimoto, G.L.Jones, B.Lauss, M.B.Leuschner, B.Losowski, R.Mahurin, Y.Masuda, G.S.Mitchell, H.Nann, S.I.Penttila, W.D.Ramsay, S.Santra, P.-N.Seo, E.I.Sharapov, T.B.Smith, W.M.Snow, W.S.Wilburn, V.Yuan, H.Zhu Measurement of Parity Violation in np Capture: the NPDGamma Experiment NUCLEAR REACTIONS Al(polarized n, γ), E=low; measured parity-violating γ-ray asymmetry.
doi: 10.6028/jres.110.024
2005SH07 Phys.Rev. C 71, 024313 (2005) J.F.Shriner, Jr., G.E.Mitchell, B.A.Brown Statistical properties and broken symmetries within the shell model NUCLEAR STRUCTURE 22Na, 26Al, 34Cl; calculated level spacing distributions, transition probability distributions; deduced effect of broken isospin symmetry.
doi: 10.1103/PhysRevC.71.024313
2005SI07 Acta Phys.Pol. B36, 1089 (2005) S.Siem, M.Guttormsen, E.Algin, U.Agvaanluvsan, T.Belgya, R.Chankova, G.Mitchell, L.A.Bernstein, J.Rekstad, A.Schiller, A.C.Sunde, N.Syed, A.Voinov Soft resonances in hot nuclei NUCLEAR STRUCTURE 93,94,95,96,97,98Mo, 148,149Sm, 161,162Dy, 166,167Er, 171,172Yb; analyzed radiative strength functions, resonance features.
2005WI18 J.Res.Natl.Inst.Stand.Technol. 110, 389 (2005) W.S.Wilburn, J.D.Bowman, G.S.Mitchell, J.M.O'Donnell, S.I.Penttila, P.-N.Seo, J.R.Calarco, F.W.Hersmann, T.E.Chupp, T.V.Cianciolo, K.P.Rykaczewski, G.R.Young, R.T.De Souza, W.M.Snow, D.Desai, G.L.Greene, R.K.Grzywacz, E.Frlez, D.Pocanic, T.R.Gentile, V.Gudkov, G.L.Jones Measurement of Neutron Decay Parameters-The abBA Experiment
doi: 10.6028/jres.110.058
2004AB18 Phys.Lett. B 598, 42 (2004) S.Aberg, A.Heine, G.E.Mitchell, A.Richter Isospin symmetry breaking in 93Tc and statistical properties NUCLEAR STRUCTURE 93Tc; analyzed proton resonance energy, widths, isospin mixing effects. Random matrix theory.
doi: 10.1016/j.physletb.2004.07.051
2004AG05 Phys.Rev. C 70, 054611 (2004) U.Agvaanluvsan, A.Schiller, J.A.Becker, L.A.Bernstein, P.E.Garrett, M.Guttormsen, G.E.Mitchell, J.Rekstad, S.Siem, A.Voinov, W.Younes Level densities and γ-ray strength functions in 170, 171, 172Yb NUCLEAR REACTIONS 171Yb(3He, 3He'), (3He, α), E=45 MeV; measured Eγ, Iγ, (particle)γ-coin. 172Yb(3He, 3He'), (3He, α), E=45 MeV; 173Yb(3He, α), E=45 MeV; analyzed Eγ, Iγ, (particle)γ-coin. 170,171,172Yb deduced level densities, radiative strength functions, pygmy resonance features.
doi: 10.1103/PhysRevC.70.054611
2004CR02 J.Phys.(London) G30, 1269 (2004) B.E.Crawford, S.L.Stephenson, C.R.Howell, G.E.Mitchell, W.Tornow, W.I.Furman, E.V.Lychagin, A.Yu.Muzichka, G.V.Nekhaev, A.V.Strelkov, E.I.Sharapov, V.N.Shvetsov Calculations of neutron spectra after neutron-neutron scattering NUCLEAR REACTIONS 1n, He, Ar(n, n'), E=reactor; calculated neutron spectra.
doi: 10.1088/0954-3899/30/9/024
2004DA03 Phys.Rev. C 69, 015501 (2004) E.D.Davis, C.R.Gould, G.E.Mitchell, E.I.Sharapov Bounds on P-odd T-odd interactions from polarized neutron capture with unpolarized targets
doi: 10.1103/PhysRevC.69.015501
2004LO15 Phys.Lett. B 599, 223 (2004) S.J.Lokitz, G.E.Mitchell, J.F.Shriner, Jr. Parity dependence of 45Sc level densities NUCLEAR REACTIONS 44Ca(p, p), (p, p'), E=2.5-3.53 MeV; measured Ep, σ(θ). 45Sc deduced proton resonances, level density parameters.
doi: 10.1016/j.physletb.2004.08.039
2004MI14 Nucl.Instrum.Methods Phys.Res. A521, 468 (2004) G.S.Mitchell, C.S.Blessinger, J.D.Bowman, T.E.Chupp, K.P.Coulter, M.Gericke, G.L.Jones, M.B.Leuschner, H.Nann, S.A.Page, S.I.Penttila, T.B.Smith, W.M.Snow, W.S.Wilburn A measurement of parity-violating gamma-ray asymmetries in polarized cold neutron capture on 35Cl, 113Cd, and 139La NUCLEAR REACTIONS 35Cl, 113Cd, 139La(polarized n, γ), E=low; measured Iγ(θ), parity-violating asymmetry.
doi: 10.1016/j.nima.2003.11.192
2004SH11 Phys.Lett. B 586, 232 (2004) J.F.Shriner, Jr., G.E.Mitchell, B.A.Brown Isospin symmetry breaking and the nuclear shell model NUCLEAR STRUCTURE 26Al; calculated shell model eigenvalues, statistical features, isospin symmetry breaking effects.
doi: 10.1016/j.physletb.2004.02.062
2004VO12 Phys.Rev.Lett. 93, 142504 (2004) A.Voinov, E.Algin, U.Agvaanluvsan, T.Belgya, R.Chankova, M.Guttormsen, G.E.Mitchell, J.Rekstad, A.Schiller, S.Siem Large Enhancement of Radiative Strength for Soft Transitions in the Quasicontinuum NUCLEAR REACTIONS 57Fe(3He, 3He'), (3He, α), E=45 MeV; measured Eγ, Iγ, (particle)γ-coin. 56Fe(n, γ), E=thermal; measured Eγ, Iγ, γγ-coin. 56,57Fe deduced radiative strength functions, quasicontinuum enhancement.
doi: 10.1103/PhysRevLett.93.142504
2003AG02 Nucl.Instrum.Methods Phys.Res. A498, 459 (2003) U.Agvaanluvasan, G.E.Mitchell, J.F.Shriner, Jr., M.P.Pato Missing level corrections in nuclear resonances NUCLEAR REACTIONS 48Ti(p, X), E=3.08-3.86 MeV; 238U(n, X), E not given; analyzed resonance data, level densities; deduced missing fraction.
doi: 10.1016/S0168-9002(02)02144-7
2003AG07 Phys.Rev. C 67, 064608 (2003) U.Agvaanluvsan, G.E.Mitchell, J.F.Shriner, Jr., M.Pato Parity dependence of nuclear level densities NUCLEAR REACTIONS 44Ca, 48Ti, 56Fe(p, p), E ≈ 2-4 MeV; analyzed proton resonance data. 45Sc, 49V, 57Co deduced proton resonance level densities, parity asymmetry.
doi: 10.1103/PhysRevC.67.064608
2003MA61 Nucl.Phys. A721, 485c (2003) Y.Masuda, J.D.Bowman, R.D.Carlini, T.Case, T.E.Chupp, K.P.Coulter, S.J.Freedman, T.R.Gentile, M.Gericke, G.L.Greene, F.W.Hersmann, T.Ino, S.Ishimoto, G.L.Jones, M.B.Leuschner, G.S.Mitchell, K.Morimoto, S.Muto, H.Nann, S.A.Page, S.I.Penttila, W.D.Ramsay, E.I.Sharapov, T.B.Smith, W.M.Snow, S.W.Wilburn, Y.W.Yuan, and the NPDGAMMA Collaboration Parity-violating gamma-ray asymmetry in the neutron-proton capture
doi: 10.1016/S0375-9474(03)01105-9
2003SC32 Phys.Rev. C 68, 054326 (2003) A.Schiller, E.Algin, L.A.Bernstein, P.E.Garrett, M.Guttormsen, M.Hjorth-Jensen, C.W.Johnson, G.E.Mitchell, J.Rekstad, S.Siem, A.Voinov, W.Younes Level densities in 56, 57Fe and 96, 97Mo NUCLEAR REACTIONS 57Fe, 97Mo(3He, 3He'), (3He, α), E=45 MeV; measured particle spectra, Eγ, Iγ. 56,57Fe, 96,97Mo deduced level densities. Microscopic model, pairing plus random interaction.
doi: 10.1103/PhysRevC.68.054326
2002FU16 J.Phys.(London) G28, 2627 (2002) W.I.Furman, E.V.Lychagin, A.Yu.Muzichka, G.V.Nekhaev, Yu.V.Safronov, A. V.Strelkov, E.I.Sharapov, V.N.Shvetsov, B.G.Levakov, V.I.Litvin, A.E.Lyzhin, E.P.Magda, C.R.Howell, G.E.Mitchell, W.Tornow, B.E.Crawford, S.L.Stephenson, C.D.Bowman Direct measurement of the neutron-neutron scattering cross section at the reactor YAGUAR NUCLEAR REACTIONS 63Cu, 197Au(n, γ), E=thermal; measured activation yields; deduced neutron flux density. Application to proposed neutron-neutron scattering experiment discussed.
doi: 10.1088/0954-3899/28/10/308
2002SM02 Phys.Rev. C65, 024607 (2002) D.A.Smith, J.D.Bowman, B.E.Crawford, C.A.Grossmann, T.Haseyama, A.Masaike, Y.Matsuda, G.E.Mitchell, S.I.Penttila, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, S.L.Stephenson, A.M.Sukhovoj, V.W.Yuan Neutron Resonance Spectroscopy of 104Pd, 105Pd, and 110Pd NUCLEAR REACTIONS 104,105,110Pd(n, γ), (n, X), E=1-2100 MeV; measured transmission spectra, Eγ, Iγ. 106,108Pd(n, X), (n, γ), E not given; analyzed data. 104,105,106,108,110Pd deduced resonance parameters, level spacings, strength functions.
doi: 10.1103/PhysRevC.65.024607
2002SM04 Phys.Rev. C65, 035503 (2002) D.A.Smith, J.D.Bowman, B.E.Crawford, C.A.Grossmann, T.Haseyama, A.Masaike, Y.Matsuda, G.E.Mitchell, S.I.Penttila, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, S.L.Stephenson, V.W.Yuan Parity Violation in Neutron Resonances of Palladium NUCLEAR REACTIONS Pd(polarized n, X), E=60-160 eV; measured transmission neutron spectra. 104,105,106,108Pd deduced resonance parameters, parity nonconservation asymmetries.
doi: 10.1103/PhysRevC.65.035503
2002TA14 Phys.Rev. C65, 064309 (2002) E.Tavukcu, L.A.Bernstein, K.Hauschild, J.A.Becker, P.E.Garrett, C.A.McGrath, D.P.McNabb, W.Younes, P.Navratil, R.O.Nelson, G.D.Johns, G.E.Mitchell, J.A.Cizewski State in 196Pt Observed with the (n, n'γ) Reaction NUCLEAR REACTIONS 196Pt(n, n'γ), E=1-8 MeV; measured Eγ, Iγ, γγ-coin; deduced γ-ray excitation functions. 196Pt deduced levels, J, π. Geanie array, interacting boson model calculations.
doi: 10.1103/PhysRevC.65.064309
2001MA55 Phys.Rev. C64, 015501 (2001) Y.Matsuda, J.D.Bowman, B.E.Crawford, P.P.J.Delheij, T.Haseyama, J.N.Knudson, L.Y.Lowie, A.Masaike, Y.Masuda, G.E.Mitchell, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, S.L.Stephenson, Y.-F.Yen, V.W.Yuan Parity Violation in Neutron Resonances of Antimony and Iodine NUCLEAR REACTIONS 121,123Sb, 127I(polarized n, n'), E ≈ 5-350 eV; measured transmission neutron spectra. 121,123Sb, 127I deduced resonance parameters, parity-nonconserving asymmetries, weak spreading widths.
doi: 10.1103/PhysRevC.64.015501
2001MI34 Phys.Rep. 354, 157 (2001) G.E.Mitchell, J.D.Bowman, S.I.Penttila, E.I.Sharapov Parity Violation in Compound Nuclei: Experimental methods and recent results NUCLEAR STRUCTURE 81Br, 93Nb, 103Rh, 107,109Ag, 104,105,106,108Pd, 113Cd, 115In, 117Sn, 121,123Sb, 127I, 131Xe, 133Cs, 139La, 232Th, 238U; compiled, analyzed resonance parameters, parity nonconserving asymmetry data.
doi: 10.1016/S0370-1573(01)00016-3
2001SM07 Phys.Rev. C64, 015502 (2001) D.A.Smith, J.D.Bowman, B.E.Crawford, C.A.Grossmann, T.Haseyama, M.B.Johnson, A.Masaike, Y.Matsuda, G.E.Mitchell, V.A.Nazarenko, S.I.Penttila, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, L.M.Smotritsky, S.L.Stephenson, S.Tomsovic, V.W.Yuan Parity Violation in Neutron Resonances of 117Sn NUCLEAR REACTIONS 117Sn(polarized n, n'), E ≈ 0.8-1100 eV; measured neutron spectra. 117Sn deduced resonance parameters, parity-nonconserving asymmetries, weak spreading width.
doi: 10.1103/PhysRevC.64.015502
2001TA31 Phys.Rev. C64, 054614 (2001) E.Tavukcu, L.A.Bernstein, K.Hauschild, J.A.Becker, P.E.Garrett, C.A.McGrath, D.P.McNabb, W.Younes, M.B.Chadwick, R.O.Nelson, G.D.Johns, G.E.Mitchell 196Pt(n, xnypγ) Reactions using Spallation Neutrons from En = 1 to 250 MeV NUCLEAR REACTIONS 196Pt(n, xnyp)184Pt/186Pt/188Pt/190Pt/191Pt/192Pt/193Pt/194Pt/194Pt/196Pt/189Ir/191Ir/193Ir, E=1-250 MeV; measured prompt Eγ, Iγ, γγ-coin; deduced γ-ray excitation functions. Comparison with model predictions.
doi: 10.1103/PhysRevC.64.054614
2000GR19 Phys.Rev. C62, 024323 (2000) C.A.Grossmann, M.A.LaBonte, G.E.Mitchell, J.D.Shriner, J.F.Shriner, Jr., G.A.Vavrina, P.M.Wallace Complete Spectroscopy of 30P NUCLEAR REACTIONS 29Si(p, γ), E=1.0-2.5 MeV; measured Eγ, Iγ(θ). 30P deduced levels, J, π, δ, partial widths. Comparison with shell model.
doi: 10.1103/PhysRevC.62.024323
2000MI09 Phys.Rev. C61, 045503 (2000) G.E.Mitchell, J.D.Bowman, B.E.Crawford, P.P.J.Delheij, C.M.Frankle, M.Iinuma, J.N.Knudson, L.Y.Lowie, A.Masaike, Y.Matsuda, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, S.L.Stephenson, Y.-F.Yen, V.W.Yuan New Search for Parity Violation in Nonresonant Neutron Scattering on Thorium NUCLEAR REACTIONS 232Th(polarized n, n), E=30-300 eV; measured transmission neutron spectra; deduced off-resonance parity violating asymmetry.
doi: 10.1103/PhysRevC.61.045503
2000SH02 Phys.Rev. C61, 025501 (2000) E.I.Sharapov, J.D.Bowman, B.E.Crawford, P.P.J.Delheij, C.M.Frankle, M.Iinuma, J.N.Knudson, L.Y.Lowie, J.E.Lynch, A.Masaike, Y.Matsuda, G.E.Mitchell, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, S.L.Stephenson, Y.-F.Yen, V.W.Yuan Parity Violation in 232Th Neutron Resonances Above 250 eV NUCLEAR REACTIONS 232Th(polarized n, n), E=40-2100 eV; measured transimission yields, asymmetry. 232Th deduced resonances, parity-nonconservation effects.
doi: 10.1103/PhysRevC.61.025501
2000SH42 Phys.Rev. C62, 054305 (2000) J.F.Shriner, Jr., C.A.Grossmann, G.E.Mitchell Level Statistics and Transition Distributions of 30P NUCLEAR STRUCTURE 30P; analyzed level statistics, transition probability distributions; deduced broken isospin symmetry.
doi: 10.1103/PhysRevC.62.054305
2000ST08 Phys.Rev. C61, 045501 (2000) S.L.Stephenson, J.D.Bowman, F.Corvi, B.E.Crawford, P.P.J.Delheij, C.M.Frankle, M.Iinuma, J.N.Knudson, L.Y.Lowie, A.Masaike, Y.Masuda, Y.Matsuda, G.E.Mitchell, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, H.M.Shimizu, Y.-F.Yen, V.W.Yuan, L.Zanini Parity Violation in Neutron Resonances in 115In NUCLEAR REACTIONS In(polarized n, n), E=6-316 eV; measured transmission neutron spectra. 115In(n, γ), E=3-480 eV; measured Eγ, Iγ, σ(En). 115In deduced p-wave resonances J, π, asymmetries, parity violation, weak spreading width.
doi: 10.1103/PhysRevC.61.045501
1999AN43 Phys.Lett. 463B, 339 (1999) P.L.Anthony, R.G.Arnold, T.Averett, H.R.Band, M.C.Berisso, H.Borel, P.E.Bosted, S.L.Bultmann, M.Buenerd, T.Chupp, S.Churchwell, G.R.Court, D.Crabb, D.Day, P.Decowski, P.DePietro, R.Erbacher, R.Erickson, A.Feltham, H.Fonvieille, E.Frlez, R.Gearhart, V.Ghazikhanian, J.Gomez, K.A.Griffioen, C.Harris, M.A.Houlden, E.W.Hughes, C.E.Hyde-Wright, G.Igo, S.Incerti, J.Jensen, J.R.Johnson, P.M.King, Yu.G.Kolomensky, S.E.Kuhn, R.Lindgren, R.M.Lombard-Nelsen, J.Marroncle, J.McCarthy, P.McKee, W.Meyer, G.Mitchell, J.Mitchell, M.Olson, S.Penttila, G.Peterson, G.G.Petratos, R.Pitthan, D.Pocanic, R.Prepost, C.Prescott, L.M.Qin, B.A.Raue, D.Reyna, L.S.Rochester, S.Rock, O.A.Rondon-Aramayo, F.Sabatie, I.Sick, T.Smith, L.Sorrell, F.Staley, S.St.Lorant, L.M.Stuart, Z.Szalata, Y.Terrien, A.Tobias, L.Todor, T.Toole, S.Trentalange, D.Walz, R.C.Welsh, F.R.Wesselmann, T.R.Wright, C.C.Young, M.Zeier, H.Zhu, B.Zihlmann Measurement of the Deuteron Spin Structure Function g1d(x) for 1 (GeV/c)2 < Q2 < 40 (GeV/c)2 NUCLEAR REACTIONS 2H, 6Li(polarized e, e'X), E=48.3 GeV; measured electrons σ(θ), longitudinal asymmetries. 2H deduced spin structure function.
doi: 10.1016/S0370-2693(99)00940-5
1999CR03 Phys.Rev. C60, 055503 (1999) B.E.Crawford, J.D.Bowman, P.P.J.Delheij, T.Haseyama, J.N.Knudson, L.Y.Lowie, A.Masaike, Y.Matsuda, G.E.Mitchell, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, S.L.Stephenson, V.W.Yuan Parity Nonconservation in 106Pd and 108Pd Neutron Resonances NUCLEAR REACTIONS 106,108Pd(polarized n, γ), E=20-2000 eV; measured capture σ vs helicity; deduced weak spreading widths, possible parity nonconservation effects.
doi: 10.1103/PhysRevC.60.055503
1999LO01 Phys.Rev. C59, 1119 (1999) L.Y.Lowie, J.D.Bowman, F.Corvi, B.E.Crawford, P.P.J.Delheij, C.M.Frankle, M.Iinuma, J.N.Knudson, A.Masaike, Y.Masuda, Y.Matsuda, G.E.Mitchell, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, H.M.Shimizu, S.L.Stephenson, Y.-F.Yen, V.W.Yuan, L.Zanini Parity Violation in Neutron Resonances in 107, 109Ag NUCLEAR REACTIONS Ag(polarized n, X), E=32-422 eV; measured total σ helicity dependence, longitudinal asymmetries; deduced parity nonconservation features. 107,109Ag(n, γ), E=10-800 eV; measured Eγ, Iγ, tof spectra. 107,109Ag deduced resonances E, Γ, J.
doi: 10.1103/PhysRevC.59.1119
1999MI05 Rev.Mod.Phys. 71, 445 (1999) G.E.Mitchell, J.D.Bowman, H.A.Weidenmuller Parity Violation in the Compound Nucleus NUCLEAR STRUCTURE 93Nb, 107,109Ag, 104,105,106,108Pd, 113Cd, 115In, 117Sn, 121,123Sb, 127I, 232Th, 238U; reviewed, analyzed neutron scattering data, parity-violation effects, weak spreading widths.
doi: 10.1103/RevModPhys.71.445
1999SH11 Phys.Rev. C59, 1131 (1999) E.I.Sharapov, J.D.Bowman, B.E.Crawford, P.P.J.Delheij, C.M.Frankle, K.Fukuda, M.Iinuma, J.N.Knudson, S.J.Lokitz, L.Y.Lowie, A.Masaike, Y.Masuda, Y.Matsuda, G.E.Mitchell, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, H.M.Shimizu, S.L.Stephenson, Y.-F.Yen, V.W.Yuan Search for Parity Violation in 93Nb Neutron Resonances NUCLEAR REACTIONS 93Nb(polarized n, n), E=32-1000 eV; measured total σ, longitudinal asymmetries. 93Nb deduced resonances E, Γ, upper limit for weak spreading width.
doi: 10.1103/PhysRevC.59.1131
1999SH17 Phys.Rev. C59, 1772 (1999) E.I.Sharapov, J.D.Bowman, B.E.Crawford, P.P.J.Delheij, T.Haseyama, J.N.Knudson, L.Y.Lowie, A.Masaike, Y.Masuda, Y.Matsuda, G.E.Mitchell, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, S.L.Stephenson, Y.-F.Yen, V.W.Yuan Parity Nonconservation in Neutron Resonances in 133Cs NUCLEAR REACTIONS 133Cs(polarized n, γ), E=5-400 eV; measured transmission spectra, σ(E) asymmetry. 133Cs deduced resonances E, Γ, parity non-conserving matrix element, weak spreading width.
doi: 10.1103/PhysRevC.59.1772
1999SM03 Phys.Rev. C59, 2836 (1999) D.A.Smith, J.D.Bowman, B.E.Crawford, C.A.Grossmann, T.Haseyama, M.B.Johnson, A.Masaike, Y.Matsuda, G.E.Mitchell, V.A.Nazarenko, S.I.Penttila, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, L.M.Smotritsky, S.L.Stephenson, V.Yuan Neutron Resonance Spectroscopy of 117Sn from 1 eV to 1.5 keV NUCLEAR REACTIONS 117Sn(n, γ), E=1-1500 eV; measured σ(E). 117Sn deduced neutron resonance parameters.
doi: 10.1103/PhysRevC.59.2836
1999SM15 Phys.Rev. C60, 045502 (1999) D.A.Smith, J.D.Bowman, B.E.Crawford, C.A.Grossmann, T.Haseyama, A.Masaike, Y.Matsuda, G.E.Mitchell, S.I.Penttila, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, S.L.Stephenson, V.Yuan Neutron Resonance Spectroscopy of 103Rh from 30 eV to 2 keV NUCLEAR REACTIONS 103Rh(n, γ), E=30-2000 eV; measured σ(En); deduced resonance parameters. Tof technique.
doi: 10.1103/PhysRevC.60.045502
1999SM16 Phys.Rev. C60, 045503 (1999) D.A.Smith, J.D.Bowman, B.E.Crawford, C.A.Grossmann, T.Haseyama, A.Masaike, Y.Matsuda, G.E.Mitchell, S.I.Penttila, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, S.L.Stephenson, V.Yuan Parity Violation in Neutron Resonances of 103Rh NUCLEAR REACTIONS 103Rh(n, γ), E=30-490 eV; analyzed data; deduced resonance parameters, parity nonconservation.
doi: 10.1103/PhysRevC.60.045503
1998AD05 Phys.Lett. 422B, 13 (1998) A.A.Adams, G.E.Mitchell, J.F.Shriner, Jr. Statistical Distribution of Reduced Transition Probabilities in 26Al NUCLEAR STRUCTURE 26Al; analyzed reduced transition probabilities; deduced possible symmetry breaking.
doi: 10.1016/S0370-2693(98)00031-8
1998BE71 Phys.Rev. B58, 11103 (1998) M.Berheide, W.H.Schulte, H.-W.Becker, L.Borucki, M.Buschmann, N.Piel, C.Rolfs, G.E.Mitchell, J.S.Schweitzer Average Kinetic Energy of Atoms in a Solid Measured with Resonant Nuclear Reactions NUCLEAR REACTIONS 21Ne(p, γ), E ≈ 272 keV; measured thick target yield curves; deduced target atoms average kinetic energy.
doi: 10.1103/PhysRevB.58.11103
1998CR04 Phys.Rev. C58, 729 (1998) B.E.Crawford, J.D.Bowman, P.P.J.Delheij, T.Haseyama, J.N.Knudson, L.Y.Lowie, A.Masaike, Y.Matsuda, G.E.Mitchell, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, S.L.Stephenson, V.W.Yuan Neutron Resonance Spectroscopy of 106Pd and 108Pd from 20 to 2000 eV NUCLEAR REACTIONS 106,108Pd(n, γ), (n, n'γ), E=20-2000 eV; measured transmission, capture Eγ, Iγ. 106,108Pd deduced resonances E, Γ, J, π. Multilevel, multichannel analysis.
doi: 10.1103/PhysRevC.58.729
1998CR05 Phys.Rev. C58, 1225 (1998) B.E.Crawford, J.D.Bowman, P.P.J.Delheij, C.M.Frankle, M.Iinuma, J.N.Knudson, L.Y.Lowie, A.Masaike, Y.Matsuda, G.E.Mitchell, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, S.L.Stephenson, Y.-F.Yen, V.W.Yuan, and the TRIPLE Collaboration Parity Nonconservation in Neutron Resonances in 238U NUCLEAR REACTIONS 238U(polarized n, n), E=10-300 eV; measured total σ, longitudinal asymmetries. 238U deduced resonance parameters, parity violating matrix element.
doi: 10.1103/PhysRevC.58.1225
1998SE21 Phys.Rev. C58, 2977 (1998) S.J.Seestrom, J.D.Bowman, B.E.Crawford, P.P.J.Delheij, C.M.Frankle, C.R.Gould, D.G.Haase, M.Iinuma, J.N.Knudson, P.E.Koehler, L.Y.Lowie, A.Masaike, Y.Masuda, Y.Matsuda, G.E.Mitchell, S.I.Penttila, Yu.P.Popov, H.Postma, N.R.Roberson, E.I.Sharapov, H.M.Shimizu, D.A.Smith, S.L.Stephenson, Y.F.Yen, V.W.Yuan Parity Nonconservation in Neutron Capture on 113Cd NUCLEAR REACTIONS Cd, 113Cd(polarized n, γ), E=7-520 eV; measured Eγ, Iγ, transmission spectra, total capture σ helicity dependence. 113Cd deduced resonances J, π, widths, parity-violating asymmetries.
doi: 10.1103/PhysRevC.58.2977
1998ST14 Phys.Rev. C58, 1236 (1998) S.L.Stephenson, J.D.Bowman, B.E.Crawford, P.P.J.Delheij, C.M.Frankle, M.Iinuma, J.N.Knudson, L.Y.Lowie, A.Masaike, Y.Matsuda, G.E.Mitchell, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, Y.-F.Yen, V.W.Yuan Parity Nonconservation in Neutron Resonances in 232Th NUCLEAR REACTIONS 232Th(polarized n, n), E=8-300 eV; measured total σ, longitudinal asymmetries. 232Th deduced resonance parameters, parity violating matrix element.
doi: 10.1103/PhysRevC.58.1236
1997AD03 Phys.Lett. 392B, 1 (1997) A.A.Adams, G.E.Mitchell, W.E.Ormand, J.F.Shriner, Jr. Distribution of Shell Model Reduced Transition Probabilities in 22Na NUCLEAR STRUCTURE 22Na; calculated B(λ); deduced chaotic nature related features. Shell model.
doi: 10.1016/S0370-2693(96)01510-9
1997LO04 Phys.Rev. C56, 90 (1997) L.Y.Lowie, J.D.Bowman, B.E.Crawford, P.P.J.Delheij, T.Haseyama, J.N.Knudson, A.Masaike, Y.Matsuda, G.E.Mitchell, S.I.Penttila, H.Postma, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, S.L.Stephenson, Y.-F.Yen, V.W.Yuan Neutron Resonance Spectroscopy of 107Ag and 109Ag NUCLEAR REACTIONS 107,109Ag(n, X), E=10-800 eV; measured neutron transmission spectra. 108,110Ag deduced resonances, gΓ(n), l, J. 107Ag(n, γ), E=10-800 eV; measured Eγ, Iγ. 108Ag deduced resonance isotopic assignments.
doi: 10.1103/PhysRevC.56.90
1997VA02 Phys.Rev. C55, 1119 (1997) G.A.Vavrina, E.G.Bilpuch, C.R.Bybee, G.E.Mitchell, E.F.Moore, J.D.Shriner, J.F.Shriner, Jr., P.M.Wallace, C.R.Westerfeldt Spectroscopy of the 29Si(p, γ) Reaction for E(p) = 1.00-1.75 MeV NUCLEAR REACTIONS, ICPND 29Si(p, γ), E=1-1.75 MeV; measured Eγ, Iγ, σ(E). 30P deduced levels, J, π, γ strengths, branching ratios. Enriched targets.
doi: 10.1103/PhysRevC.55.1119
1996BO03 Phys.Rev. C53, 285 (1996) J.D.Bowman, L.Y.Lowie, G.E.Mitchell, E.I.Sharapov, Y.-F.Yen Analysis of Parity Violation in Neutron Resonances NUCLEAR STRUCTURE 116In; calculated probability density function vs p, ρ. 232Th, 238U; calculated p-wave resonances spin densities, relative probabilities. Parity violation, neutron resonances.
doi: 10.1103/PhysRevC.53.285
1996BY02 Z.Phys. A355, 327 (1996) C.R.Bybee, G.E.Mitchell, J.F.Shriner, Jr. The Fourier Transform as a Signature for Chaos in Nuclear Energy Levels NUCLEAR STRUCTURE 57Co, 167Er; analyzed neutron resonance, nearest neighbor spacing distribution data. Fourier transform of autocorrelation function.
doi: 10.1007/s002180050115
1996MI10 Phys.Rev. C54, 371 (1996) G.E.Mitchell, J.F.Shriner, Jr. Parity Violation in Charged-Particle Resonance Reactions NUCLEAR REACTIONS 31P(polarized p, α), E ≈ 3.032-3.038 MeV; calculated σ(θ), analyzing power, (A(z)/V), nucleon figure of merit vs E, parity nonconserving observables; deduced proposed detector design.
doi: 10.1103/PhysRevC.54.371
1996SK01 Phys.Rev. C53, R2573 (1996) V.R.Skoy, E.I.Sharapov, N.A.Gundorin, Yu.P.Popov, Yu.V.Prokofichev, N.R.Roberson, G.E.Mitchell Isotopic Identification of the Parity-Violating Neutron p-Wave Resonance at Energy E0 = 3.2 eV in Xe NUCLEAR REACTIONS 129Xe, Xe(n, γ), (n, X), E=epithermal; measured reaction products, TOF, En, In, Eγ, Iγ. 131Xe; deduced resonance parameters.
doi: 10.1103/PhysRevC.53.R2573
1996SZ02 Phys.Rev. C53, R2576 (1996) J.J.Szymanski, W.M.Snow, J.D.Bowman, B.Cain, B.E.Crawford, P.P.J.Delheij, R.D.Hartman, T.Haseyama, C.D.Keith, J.N.Knudson, A.Komives, M.Leuschner, L.Y.Lowie, A.Masaike, Y.Matsuda, G.E.Mitchell, S.I.Penttila, H.Postma, D.Rich, N.R.Roberson, S.J.Seestrom, E.I.Sharapov, S.L.Stephenson, Y.F.Yen, V.W.Yuan Observation of a Large Parity Nonconserving Analyzing Power in Xe NUCLEAR REACTIONS Xe(polarized n, X), E ≈ resonance; measured large parity nonconserving analyzing power. Transmission through liquid Xe target, natural isotopic abundance.
doi: 10.1103/PhysRevC.53.R2576
1996WA33 Phys.Rev. C54, 2916 (1996) P.M.Wallace, E.G.Bilpuch, C.R.Bybee, G.E.Mitchell, E.F.Moore, J.D.Shriner, J.F.Shriner, Jr., G.A.Vavrina, C.R.Westerfeldt Spectroscopy of the 29Si(p, γ) Reaction for E(p) = 1.75 - 2.51 MeV NUCLEAR REACTIONS 29Si(p, γ), E=1.75-2.51 MeV; measured σ(p, γ), Eγ, Iγ. 30P deduced levels, J, π, T, γ-branching ratios. Enriched targets.
doi: 10.1103/PhysRevC.54.2916
1995BE29 Z.Phys. A351, 453 (1995) H.W.Becker, M.Bahr, M.Berheide, L.Borucki, M.Buschmann, C.Rolfs, G.Roters, S.Schmidt, W.H.Schulte, G.E.Mitchell, J.S.Schweitzer Hydrogen Depth Profiling using 18O Ions NUCLEAR REACTIONS, ICPND 1H(15N, α), E=6.58 MeV; 1H(18O, α), E=2.9 MeV; measured spectra. 18O(p, α), E ≈ 140-160 keV; calculated astrophysical S-factor vs E. 1H(15N, α), E ≈ 6.525-6.625 MeV; 1H(18O, α), E ≈ 2.85-2.95 MeV; measured yield ratio Iα/I(H) vs E. 16O, 19F deduced more accurate resonance parameters. 1H(18O, α), E ≈ 2.68-2.78 MeV; measured α-yield vs E. 1H(15N, α), E ≈ 6.36-6.48 MeV; measured γ yield vs E. Single stage accelerator technique, depth profiling applications.
doi: 10.1007/BF01291151
1995MI28 Nucl.Instrum.Methods Phys.Res. B99, 305 (1995) G.E.Mitchell, J.F.Shriner, Jr. Parity Violation in Charged Particle Resonances NUCLEAR REACTIONS 31P(polarized p, α), E=3.0356, 3.0341 MeV; 23Na, 27Al, 35Cl, 39K(polarized p, p), (polarized p, α), E not given; compiled, reviewed (analyzing power)/(parity violating interaction matrix element V) vs E; deduced local rms V for each resonance.
doi: 10.1016/0168-583X(94)00686-5
1995SH54 Nucl.Instrum.Methods Phys.Res. B99, 641 (1995) J.F.Shriner, Jr., E.G.Bilpuch, C.R.Bybee, G.E.Mitchell, E.F.Moore, J.D.Shriner, C.R.Westerfeldt A Compton-Suppressed Spectrometer for Studies of Chaos in Nuclei NUCLEAR REACTIONS 29Si(p, γ), E=2.4866 MeV; measured Eγ, Iγ. Compton-suppressed spectrometer.
doi: 10.1016/0168-583X(94)00760-8
1994DR01 Phys.Rev. C49, 411 (1994) J.M.Drake, E.G.Bilpuch, G.E.Mitchell, J.F.Shriner, Jr. Detailed-Balance Tests of Time-Reversal Invariance with Interfering Charged-Particle Resonances NUCLEAR STRUCTURE 24Mg, 28Si, 32S, 36Ar, 40Ca; analyzed resonances data; calculated σ(θ) differences for (p, α), (α, p) leading to these compound nuclei; deduced time reversal invariance testing possibility. NUCLEAR REACTIONS 23Na, 27Al, 31P, 35Cl, 39K(p, p), (p, α), E ≈ resonance; analyzed data; deduced time reversal invariance testing possibility.
doi: 10.1103/PhysRevC.49.411
1994SH01 Phys.Rev. C49, R616 (1994) J.F.Shriner, Jr., G.E.Mitchell Parity Violation in Charged Particle Nuclear Reactions NUCLEAR REACTIONS 39K(polarized p, α), E(cm)=3.342-3.348 MeV; calculated σ(θ), longitudinal analyzing power/parity violating matrix element vs E; deduced charge particle resonance studies usefulness in parity nonconservation investigations. Standard two-state model, experimental data input.
doi: 10.1103/PhysRevC.49.R616
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