NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = A.Couture Found 93 matches. 2023FI01 Eur.Phys.J. A 59, 36 (2023) S.Fiebiger, B.Baramsai, A.Couture, M.Krticka, S.Mosby, J.O'Donnell, R.Reifarth, G.Rusev, J.Ullmann, M.Weigand, C.Wolf Neutron capture cross section of 83Kr NUCLEAR REACTIONS 83Kr(n, γ), (n, X), E<500 keV; measured reaction products, En, In, TOF; deduced σ, MACS. Comparison with available data. The DANCE array at the Los Alamos National Laboratory.
doi: 10.1140/epja/s10050-023-00945-5
2023KN03 Phys.Rev. C 107, 044313 (2023) I.Knapova, A.Couture, C.Fry, J.Kvasil, M.Krticka, V.O.Nesterenko, J.M.O'Donnell, C.J.Prokop, G.Rusev, J.L.Ullmann, S.Valenta Photon strength functions, level densities, and isomeric ratio in 168Er from the radiative neutron capture measured at the DANCE facility NUCLEAR REACTIONS 168Er(n, γ), E=15-350 eV; measured neutron Time-of-Flight, Eγ, Iγ, γγ-coin, total γ-sum energy, multistep γ-cascade spectra; deduced γ- multiplicity, isomeric ratios, resonances, total radiative width of s-wave resonances. 168Er; deduced isomer levels, T1/2, nuclear level density (NLD), photon strength functions (PSFs), total B(M1) strength. Comparison to experimental data obtained by Oslo method and in NRF experiments. Confirmed scissor mode resonance-like structure in the M1 PSF with its centroid between 3.1 and 3.3 MeV and a width of about 1 MeV. Analysis of multistep cascade fluctuations indicate possible invalidity of the assumed Porter-Thomas distribution of the primary transition intensities. Comparison to TALYS and DICEBOX simulations. Highly segmented γ-ray calorimeter Detector for Advanced Neutron Capture Experiments DANCE (160 BaF2 scintillation crystals) at at the moderated spallation neutron source LANSCE (Los Alamos Neutron Science Center).
doi: 10.1103/PhysRevC.107.044313
2023LE04 Eur.Phys.J. A 59, 42 (2023) R.Lewis, A.Couture, S.N.Liddick, A.Spyrou, D.L.Bleuel, L.Crespo Campo, B.P.Crider, A.C.Dombos, M.Guttormsen, T.Kawano, A.C.Larsen, A.M.Lewis, S.Mosby, G.Perdikakis, C.J.Prokop, S.J.Quinn, T.Renstrom, S.Siem Statistical (n, γ) cross section model comparison for short-lived nuclei NUCLEAR REACTIONS 73Zn(n, γ), E<1 MeV; calculated σ using TALYS, EMPIRE, and CoH, level densities, γ-ray strength function. Comparison with experimental data.
doi: 10.1140/epja/s10050-023-00920-0
2023LE08 Phys.Rev. C 108, 014608 (2023) E.Leal-Cidoncha, A.Couture, E.M.Bond, T.A.Bredeweg, C.Fry, T.Kawano, A.E.Lovell, G.Rusev, I.Stetcu, J.L.Ullmann, L.Leal, M.T.Pigni Measurement of the neutron-induced capture-to-fission cross section ratio in 233U at LANSCE NUCLEAR REACTIONS 235U(n, F), (n, γ), E=0.007-250 keV; measured Eγ, Iγ, γ-sum, En, In, nγ-coin; deduced capture-to-fission σ ratio, σ(E) of (n, γ) reaction derived from obtained ratio and ENDF/B-VIII.0 fission σ. Comparison to other experimental data, statistical model calculations and data from ENDF/B-VIII.0, JEFF-3.3, and JENDL-5 libraries. Discussed impact of the data on Th-U fuel cycle. Detector for Advanced Neutron Capture Experiments (DANCE) γ-calorimeter composed of 160 BaF2 crystals combined with the neutron detector array at DANCE (NEUANCE) composed of 21 stilbene crystals at Los Alamos Neutron Science Center (LANSCE, LANL).
doi: 10.1103/PhysRevC.108.014608
2022AL01 J.Phys.(London) G49, 010501 (2022) M.Aliotta, R.Buompane, M.Couder, A.Couture, R.J.deBoer, A.Formicola, L.Gialanella, J.Glorius, G.Imbriani, M.Junker, C.Langer, A.Lennarz, Y.A.Litvinov, W.-P.Liu, M.Lugaro, C.Matei, Z.Meisel, L.Piersanti, R.Reifarth, D.Robertson, A.Simon, O.Straniero, A.Tumino, M.Wiescher, Y.Xu The status and future of direct nuclear reaction measurements for stellar burning NUCLEAR REACTIONS 12C(α, γ), 22Ne(α, n), (α, γ), 12C(12C, X), E(cm)<7 MeV; analyzed available data; deduced σ, S-factors.
doi: 10.1088/1361-6471/ac2b0f
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
2022KO29 Eur.Phys.J. A 58, 195 (2022) P.E.Koehler, J.L.Ullmann, A.J.Couture, S.M.Mosby Constraining the nuclear spin distribution using improved 197Au neutron resonance parameters NUCLEAR REACTIONS 197Au(n, X), E<3 keV; measured reaction products, En, In; deduced transmission, resonance parameters, distributions of total radiation widths for 197Au neutron resonances . R-matrix analysis. Comparison with available data, ENDF library. An early version of the Device for Indirect Capture Experiments on Radionuclides (DICER), which is under development at the Los Alamos Neutron Science Center (LANSCE).
doi: 10.1140/epja/s10050-022-00842-3
2022LA09 Phys.Rev. C 106, 025802 (2022) A.Laminack, J.C.Blackmon, A.Couture, J.P.Greene, M.Krticka, K.T.Macon, S.Mosby, C.Prokop, J.L.Ullmann, S.Valenta Measurement of neutron-capture cross sections of 70, 72Ge using the DANCE facility NUCLEAR REACTIONS 70,72Ge(n, γ), E=0.000001-1 MeV; measured Eγ, Iγ, γ sum energy; deduced neutron capture σ(E), Maxwellian averaged σ(E). Comparison to other experimental results and evaluated data from ENDF/B-VIII.0, KADoNiS-v1.0. Presented analysis of the impact of measured σ on stellar nucleosynthesis abundances.Detector for Advanced Neutron Capture Experiments (DANCE) consisting of 160 BaF2 detectors combined into calorimeter at Los Alamos Neutron Science Center (LANSCE, LANL).
doi: 10.1103/PhysRevC.106.025802
2022NA07 Nucl.Phys. A1018, 122359 (2022) F.Naqvi, S.Karampagia, A.Spyrou, S.N.Liddick, A.C.Dombos, D.L.Bleuel, B.A.Brown, L.Crespo Campo, A.Couture, B.Crider, T.Ginter, M.Guttormsen, A.C.Larsen, R.Lewis, P.Moller, S.Mosby, G.Perdikakis, C.Prokop, T.Renstrom, S.Siem Total absorption spectroscopy measurement on neutron-rich 74, 75Cu isotopes RADIOACTIVITY 74,75Cu(β-) [from 9Be(86Kr, X), E=140 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced T1/2, cumulative β-decay intensities, B(GT). Comparison with available data.
doi: 10.1016/j.nuclphysa.2021.122359
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
2022ST09 Nucl.Instrum.Methods Phys.Res. A1025, 166166 (2022) A.Stamatopoulos, P.Koehler, A.Couture, B.DiGiovine, G.Rusev, J.Ullmann New capability for neutron transmission measurements at LANSCE: The DICER instrument NUCLEAR REACTIONS 209Bi, Cd, Gd, 95Mo(n, X), E<3 keV; measured reaction products, En, In, TOF; deduced transmission. The DICER (Device for Indirect Capture Experiments on Radionuclides) instrument, Los Alamos Neutron Science Center (LANSCE).
doi: 10.1016/j.nima.2021.166166
2021CO15 Phys.Rev. C 104, 054608 (2021) A.Couture, R.F.Casten, R.B.Cakirli Significantly improved estimates of neutron capture cross sections relevant to the r process NUCLEAR REACTIONS 149,151,152,153,154,155Nd, 151,153,154,155,156,157,158Pm, 151,153,155,156,157,158,159Sm, 157,158,159,160,161,162Eu, 159,161Gd, 161Tb, 158,165,166,167Dy, 167,168,169,170Ho, 169,171Er, 171,172,173,174Tm, 175,177Yb, 177,178,179,180,181,182Lu, 172,175,181,183,184,185Hf, 179,181,182,183,184,185,186Ta, 176,178,181,187,188,189W(n, γ), E=30 keV; 116,118,119,121,123,125,127,129,131,132Te, 123,125,126,127,128,129,130,131,132,133I, 122,125,127,129,131,133Xe, 127,129,131,132,133,134,135Cs, 126,128,129,131,133,135Ba, 143,145Ce, 143,144,145,146Pr, 145,146,147Nd, 188,190,191,192,193,194,195,197,199,201,203Hg(n, γ), E=30 keV; 180,182,185,187,189,191,193,194,195Os, 189,191,193,194,195,196,197,198Ir, 186,188,191,192,193,194,195,197,199,200,201Pt(n, γ), E=30 keV; 224,225,226,227Rn, 222,223,224,225,226,227,228,229,230,231,232,233Ra, 229,231,233,234Ac, 224,226,228,230,231,233,234,235Th, 235Pa, 232,235,237,239U, 239Np, 236,238,241,243,245Pu, 242,245,247,248,249Cm, 249Bk, 246,248,250,251,252,253Cf, 253Es, 252,254,255Fm(n, γ), E=30 keV; predicted Maxwellian-averaged cross section (σMACS) from fitting of correlation between S(2n) and neutron capture cross sections at kT=5-100 keV neutron energies, with S(2n) taken from AME2016. Relevance to r process nucleosynthesis and elemental abundances. COMPILATION 120,122,124,126,128,130Te, 124,126,128,130,132,134Xe, 130,132,134,136Ba, 148,150Nd, 150,152,154Sm, 152,154,156,158,160Gd, 156,160,162,164Dy, 162,164,166,168,170Er, 168,170,172,174,176Yb, 174,176,178,180,182Hf, 180,182,184,186W(n, γ), E=5-100 keV; 155,157Gd, 161,163Dy, 167Er, 171,173Yb, 177,179Hf, 183,185W(n, γ), E=5-100 keV; 151,153,155Eu, 159Tb, 163,165Ho, 169Tm, 175Lu, 181Ta(n, γ), E=5-100 keV; 184,186,188,190,192Os, 190,196,198Pt, 142Ce, 144Nd, 196,198,200,202,204Hg(n, γ), E=5-100 keV; 232Th, 234,236,238U, 240,242Pu, 244,246Cm, 127,129I, 133,135Cs, 154Eu, 176Lu(n, γ), E=30 keV; compiled S(2n) from AME2016, and Maxwellian-averaged cross section (σMACS) from KADoNiS database, NNDC webpage (www.nndc.bnl.gov/astro/), and 2011Ch57: Nucl. Data Sheets 112, 2887.
doi: 10.1103/PhysRevC.104.054608
2021DE13 Phys.Rev. C 103, 055815 (2021) R.J.deBoer, O.Clarkson, A.J.Couture, J.Gorres, F.Herwig, I.Lombardo, P.Scholz, M.Wiescher 19F(p, γ)20Ne and 19F(p, αγ)16O reaction rates and their effect on calcium production in Population III stars from hot CNO breakout NUCLEAR REACTIONS 19F(p, αγ)16O, E(cm)<865 keV; 19F(p, p), E(cm)=0.5-0.9 MeV; analyzed and evaluated available experimental data for σ(E, θ), differential S factors, angular distributions, R-matrix fit to secondary γ-ray data, secondary on-resonance γ-ray angular distributions. 16O; deduced levels, resonance energies, J, π, Γp, Γα, Γγ. 19F(p, γ)20Ne, E(cm)<0.8 MeV; analyzed and evaluated experimental data for S factor. 20Ne; deduced levels, resonance energies, J, π, resonance strengths, Γp, Γγ, Γα, Γtotal. 19F(p, γ)20Ne, 19F(p, αγ)16O, T=0.01-1 GK; recommended astrophysical reaction rates, and compared with compilation in NACRE database. Phenomenological R-matrix approach. Discussed astrophysical impact of the evaluated data, and recommended further measurements of importance, for example proton transfer studies needed to determine the proton ANCs of proton bound states. Relevance to the presence of Ca in Fe-poor stars in hot CNO breakout H-burning nucleosynthesis.
doi: 10.1103/PhysRevC.103.055815
2021PE08 Phys.Rev. C 103, 055808 (2021) C.F.Persch, P.A.DeYoung, S.Lyons, A.Spyrou, S.N.Liddick, F.Naqvi, B.P.Crider, A.C.Dombos, J.Gombas, D.L.Bleuel, B.A.Brown, A.Couture, L.Crespo Campo, J.Engel, M.Guttormsen, A.C.Larsen, R.Lewis, S.Karampagia, S.Mosby, E.M.Ney, A.Palmisano, G.Perdikakis, C.J.Prokop, T.Renstrom, S.Siem, M.K.Smith, S.J.Quinn β-decay feeding intensity distributions of 71, 73Ni RADIOACTIVITY 71,73Ni(β-)[from 9Be(86Kr, X), E=140 MeV/nucleon, followed by separation of fragments using A1900 fragment separator at NSCL-MSU facility]; measured implantation events and β particles using position-sensitive, double-sided, silicon-strip detector (DSSD), and two silicon PIN detectors for TOF and energy loss, Eγ, Iγ, half-lives of decays of 71,73Ni using a total absorption summing NaI(Tl) detector (SuN) surrounding the DSSD; deduced multiplicity spectra, Iβ(E) feedings, B(GT). GEANT4 and DICEBOX analysis of total absorption spectrum (TAS). Comparison with QRPA, and shell-model calculations, the latter using NuShellX@MSU code with JJ44B and JUN45 interaction Hamiltonians. Relevance to improvement in the nuclear input for r-process calculations. NUCLEAR REACTIONS 9Be(86Kr, X)71Ni/73Ni/71Cu/73Cu/, E=140 MeV/nucleon; measured yields of reaction products using A1900 fragment separator and two silicon PIN detectors for TOF and energy loss at NSCL-MSU facility.
doi: 10.1103/PhysRevC.103.055808
2020SI05 Phys.Rev. C 101, 024302 (2020) N.Simbirtseva, M.Krticka, R.F.Casten, A.Couture, W.I.Furman, I.Knapova, J.M.O'Donnell, G.Rusev, J.L.Ullmann, S.Valenta Examination of photon strength functions and nuclear level density in 196Pt from the γ-ray spectra measured at the DANCE facility NUCLEAR REACTIONS 195Pt(n, γ), E=9-1000 eV; measured E(n) by time of flight, Eγ, Iγ, γγ-coin, multi-step γ-ray cascades (MSCs) using the segmented γ-ray Detector for Advanced Neutron Capture (DANCE) of 160 BaF2 crystals at the Los Alamos Neutron Science Center (LANSC). 196Pt; deduced nuclear level density (NLD) and photon strength functions (PSFs); confirmed E1 PSF resonance at ≈5.6 MeV. Comparison of experimental MSC spectra with previous experimental data from Oslo and others, and with constant-temperature (CT) and back-shifted Fermi-gas (BSFG) model calculations.
doi: 10.1103/PhysRevC.101.024302
2019AB12 J.Phys.(London) G46, 100501 (2019) E.P.Abel, M.Avilov, V.Ayres, E.Birnbaum, G.Bollen, G.Bonito, T.Bredeweg, H.Clause, A.Couture, J.DeVore, M.Dietrich, P.Ellison, J.Engle, R.Ferrieri, J.Fitzsimmons, M.Friedman, D.Georgobiani, S.Graves, J.Greene, S.Lapi, C.S.Loveless, T.Mastren, C.Martinez-Gomez, S.McGuinness, W.Mittig, D.Morrissey, G.Peaslee, F.Pellemoine, J.D.Robertson, N.Scielzo, M.Scott, G.Severin, D.Shaughnessy, J.Shusterman, J.Singh, M.Stoyer, L.Sutherlin, A.Visser, J.Wilkinson Isotope harvesting at FRIB: additional opportunities for scientific discovery
doi: 10.1088/1361-6471/ab26cc
2019EB01 Phys.Rev. C 99, 064603 (2019) A.Ebran, O.Roig, V.Meot, M.Jandel, C.Theroine, E.M.Bond, T.A.Bredeweg, A.Couture, F.M.Nortier, J.M.O'Donnell, W.A.Taylor, J.L.Ullmann, D.J.Vieira Cross section for the neutron radiative capture on 173Lu nuclei NUCLEAR REACTIONS 173,174,175Lu(n, γ), (n, X), E=0.025-200 eV; measured Eγ, Iγ, and neutron radiative capture σ(E) using the DANCE detector with high-γ activity target at the Los Alamos Neutron Science Center (LANSCE) spallation neutron source facility; deduced resonance energies, J, Γγ, Γn for 102 resonances from 3.1-202.8 eV for 173Lu(n, γ). TALYS and SAMMY codes used for analysis of resonance data, and QRPA model for interpretation of the high gamma activity target.
doi: 10.1103/PhysRevC.99.064603
2019FI01 Phys.Rev. D 99, 103021 (2019) V.Fischer, L.Pagani, L.Pickard, A.Couture, S.Gardiner, C.Grant, J.He, T.Johnson, E.Pantic, C.Prokop, R.Svoboda, J.Ullmann, J.Wang, for the ACED Collaboration Measurement of the neutron capture cross section on argon NUCLEAR REACTIONS 40Ar(n, γ), E=0.0147-0.14125 eV; measured reaction products; deduced thermal neutron σ.
doi: 10.1103/physrevd.99.103021
2019LE05 Phys.Rev. C 99, 034601 (2019) R.Lewis, S.N.Liddick, A.C.Larsen, A.Spyrou, D.L.Bleuel, A.Couture, L.Crespo Campo, B.P.Crider, A.C.Dombos, M.Guttormsen, S.Mosby, F.Naqvi, G.Perdikakis, C.J.Prokop, S.J.Quinn, T.Renstrom, S.Siem Experimental constraints on the 73Zn(n, γ)74Zn reaction rate RADIOACTIVITY 74Cu(β-)[74Cu ions from Be(86Kr, X), E=140 MeV/nucleon reaction and using A1900 separator at NSCL-MSU facility]; measured β particles, Eγ, Iγ, βγ-coin, half-life of 74Cu decay using the Summing NaI detector for total absorption spectroscopy (TAS); deduced nuclear level density (NLD), and γ strength function (γSF) using the β-Oslo method, distribution of spins for levels in 74Zn around S(n). Comparison with previous experimental results, and with theoretical calculations using TALYS code. Results used to deduce σ for 73Zn(n, γ) reaction. NUCLEAR REACTIONS 73Zn(n, γ), E=0.01-1 MeV; deduced σ(E), and astrophysical reaction rates using the experimental NLD and γSF. Comparison with Hauser-Feshbach statistical model calculations using TALYS code.
doi: 10.1103/PhysRevC.99.034601
2019LI35 Phys.Rev. C 100, 024624 (2019) S.N.Liddick, A.C.Larsen, M.Guttormsen, A.Spyrou, B.P.Crider, F.Naqvi, J.E.Midtbo, F.L.Bello Garrote, D.L.Bleuel, L.Crespo Campo, A.Couture, A.C.Dombos, F.Giacoppo, A.Gorgen, K.Hadynska-Klek, T.W.Hagen, V.W.Ingeberg, B.V.Kheswa, R.Lewis, S.Mosby, G.Perdikakis, C.J.Prokop, S.J.Quinn, T.Renstrom, S.J.Rose, E.Sahin, S.Siem, G.M.Tveten, M.Wiedeking, F.Zeiser Benchmarking the extraction of statistical neutron capture cross sections on short-lived nuclei for applications using the β-Oslo method RADIOACTIVITY 51Sc(β-)[from 9Be(86Kr, X), E=140 MeV/nucleon]; measured Eβ, Iβ, Eγ, Iγ, βγ-coin; deduced level density, γ-strength function. Measurement was performed at NSCL using the Summing NaI(Tl) detector SuN, used as a TAS. NUCLEAR REACTIONS 50Ti(d, p)51Ti, E=12.5 MeV; measured Ep, Ip, Eγ, Iγ, γp-coin; deduced nuclear level density (NLD), γ strength function (γSF). Measurement was performed at the Oslo Cyclotron Laboratory, Sweden using the CACTUS NaI scintillator array.
doi: 10.1103/PhysRevC.100.024624
2019LY02 Phys.Rev. C 100, 025806 (2019) S.Lyons, A.Spyrou, S.N.Liddick, F.Naqvi, B.P.Crider, A.C.Dombos, D.L.Bleuel, B.A.Brown, A.Couture, L.Crespo Campo, J.Engel, M.Guttormsen, A.C.Larsen, R.Lewis, P.Moller, S.Mosby, M.R.Mumpower, E.M.Ney, A.Palmisano, G.Perdikakis, C.J.Prokop, T.Renstrom, S.Siem, M.K.Smith, S.J.Quinn 69, 71Co β-decay strength distributions from total absorption spectroscopy RADIOACTIVITY 69,71Co(β-)[from 9Be(86Kr, X), E=140 MeV/nucleon, followed by in flight separation of fragments by the A1900 fragment separator at NSCL-MSU]; measured Eγ, Iγ, Eβ, βγ-coin, half-lives of decays of 69,71Co decays, total absorption spectra using Summing NaI(Tl) (SuN) detector for γ rays and double-sided silicon strip detector (DSSD) for β; deduced cumulative Iβ distributions and compared to QRPA and Skyrme QRPA calculations, Gamow-Teller (GT) strength distribution. Comparison of decay half-lives with ENSDF values, and theoretical calculations using shell mode, QRPA and Skyrme QRPA. Relevance to r process in nucleosynthesis.
doi: 10.1103/PhysRevC.100.025806
2019PR03 Phys.Rev. C 99, 055809 (2019) C.J.Prokop, A.Couture, S.Jones, S.Mosby, G.Rusev, J.Ullmann, M.Krticka Measurement of the 65Cu(n, γ) cross section using the Detector for Advanced Neutron Capture Experiments at LANL NUCLEAR REACTIONS 65Cu(n, γ), E=10 eV-1 MeV; measured E(n), I(n), Eγ, Iγ, nγ-coin, σ(E) using the DANCE detector at LANSCE; deduced Maxwellian averaged cross section, and final composition of supernovae ejecta using new reaction rate. Comparison with evaluated data in ENDF/B-VIII.0 library and KADoNiS v0.3 database.
doi: 10.1103/PhysRevC.99.055809
2019WI03 Phys.Rev. C 99, 024318 (2019) J.R.Winkelbauer, S.M.Mosby, A.Couture, H.Y.Lee, J.L.Ullmann, T.Kawano, G.Rusev, M.Jandel, M.Krticka Statistical neutron capture in the limit of low nuclear level density NUCLEAR REACTIONS 96Zr, 208Pb(n, γ), E=thermal, 301, 3818, 4133, 5443, 5971, 9004, 17779 eV; measured Eγ, Iγ, γγ-coin, Spectra of γ-ray cascades using DANCE array at the LANSCE-LANL facility. 97Zr; deduced photon strength function (γPSF), multiplicity distributions for resonances. Comparison with simulated γ spectra from DICEBOX calculations for the cascades from the capture state and neutron resonances, and with ENSDF/B-VII.1 evaluation. Maxwellian averaged cross section (MACS).
doi: 10.1103/PhysRevC.99.024318
2018LA07 Phys.Rev. C 97, 054329 (2018) A.C.Larsen, J.E.Midtbo, M.Guttormsen, T.Renstrom, S.N.Liddick, A.Spyrou, S.Karampagia, B.A.Brown, O.Achakovskiy, S.Kamerdzhiev, D.L.Bleuel, A.Couture, L.Crespo Campo, B.P.Crider, A.C.Dombos, R.Lewis, S.Mosby, F.Naqvi, G.Perdikakis, C.J.Prokop, S.J.Quinn, S.Siem Enhanced low-energy γ-decay strength of 70Ni and its robustness within the shell model RADIOACTIVITY 70Co(β-)[from 9Be(86Kr, X), E=140 MeV/nucleon followed by fragment separation using A1900 fragment separator at NSCL-MSU]; measured Eγ, Iγ, summed γ energies, β-γ-coin using double-sided silicon strip detector (DSSD) for electrons placed in the center of the Summing NaI (SuN) total absorption spectrometer for γ radiation. 70Ni; deduced nuclear level density (NLD) and γ-strength function (γSF) using β-Oslo method. Comparison with previous experimental results, and with HFB+c calculations. NUCLEAR STRUCTURE 70Ni; calculated levels, J, π, B(E2), level densities, γSF, summed γSF, and M1 γ strengths for A=56-76 Ni isotopes. Quasiparticle time-blocking approximation and large-scale shell-model calculations with CA48MH1G and JUN45 interactions. Comparison with experimental results.
doi: 10.1103/PhysRevC.97.054329
2018MO06 Nucl.Data Sheets 148, 312 (2018) S.Mosby, T.A.Bredeweg, A.Couture, M.Jandel, T.Kawano, J.Ullmann, R.A.Henderson, C.Y.Wu 239Pu(n, γ) from 10 eV to 1.3 MeV NUCLEAR REACTIONS 239Pu(n, γ), E=0.00001-1.3 MeV; measured reaction products, Eγ, Iγ; deduced σ and uncertainties. Detector for Advanced Neutron Capture Experiments (DANCE). Comparison with theoretical calculations.
doi: 10.1016/j.nds.2018.02.007
2018MO08 Phys.Rev. C 97, 041601 (2018) S.Mosby, T.A.Bredeweg, A.Couture, M.Jandel, T.Kawano, J.L.Ullmann, R.A.Henderson, C.Y.Wu Unifying measurement of 239Pu(n, γ) in the keV to MeV energy regime NUCLEAR REACTIONS 239Pu(n, γ), E=0.001-1.3 MeV; measured Eγ, Iγ, σ(E), using the Detector for Advanced Neutron Capture Experiments (DANCE) at LANL-LANSCE facility. Comparison with previous experimental results, evaluated data in ENDF/B-VII.1, ENDF/B-VIII.0, JENDL-4, and with theoretical calculations using CoH3 for the M1 scissors mode.
doi: 10.1103/PhysRevC.97.041601
2018ZH34 Astrophys.J. 863, L23 (2018) Y.Zhu, R.T.Wollaeger, N.Vassh, R.Surman, T.M.Sprouse, M.R.Mumpower, P.Moller, G.C.McLaughlin, O.Korobkin, T.Kawano, P.J.Jaffke, E.M.Holmbeck, C.L.Fryer, W.P.Even, A.J.Couture, J.Barnes Californium-254 and Kilonova Light Curves RADIOACTIVITY 254Cf(SF); calculated abundance, fission product yields, heating rates, mid-IR light curves.
doi: 10.3847/2041-8213/aad5de
2017AR04 Prog.Part.Nucl.Phys. 94, 1 (2017) A.Arcones, D.W.Bardayan, T.C.Beers, L.A.Bernstein, J.C.Blackmon, B.Messer, B.A.Brown, E.F.Brown, C.R.Brune, A.E.Champagne, A.Chieffi, A.J.Couture, P.Danielewicz, R.Diehl, M.El Eid, J.E.Escher, B.D.Fields, C.Frohlich, F.Herwig, W.R.Hix, C.Iliadis, W.G.Lynch, G.C.McLaughlin, B.S.Meyer, A.Mezzacappa, F.Nunes, B.W.O'Shea, M.Prakash, B.Pritychenko, S.Reddy, E.Rehm, G.Rogachev, R.E.Rutledge, H.Schatz, M.S.Smith, I.H.Stairs, A.W.Steiner, T.E.Strohmayer, F.X.Timmes, D.M.Townsley, M.Wiescher, R.G.T.Zegers, M.Zingale White paper on nuclear astrophysics and low energy nuclear physics Part 1: Nuclear astrophysics
doi: 10.1016/j.ppnp.2016.12.003
2017BA28 Phys.Rev. C 96, 024619 (2017) B.Baramsai, M.Jandel, T.A.Bredeweg, E.M.Bond, A.R.Roman, G.Rusev, C.L.Walker, A.Couture, S.Mosby, J.M.O'Donnell, J.L.Ullmann, T.Kawano Radiative neutron capture cross section from 236U NUCLEAR REACTIONS 236U(n, γ), E=10 eV-800 keV; measured neutron time-of-flight spectrum, Eγ, Iγ, (n-resonance)γ-coin using the Detector for Advanced Neutron Capture Experiments (DANCE) γ-ray calorimeter at the Los Alamos Neutron Science Center; deduced multistep cascade spectra and multiplicity distribution of strong resonances, average multiplicity of resonances, capture σ(E), energies, Γγ, and Γn of neutron resonances for E(n)=29.8-998.1 eV. R-matrix analysis using code SAMMY. Comparison with earlier experimental data, and with ENDF/B-VII.1 and JEFF-3.2 nuclear data libraries.
doi: 10.1103/PhysRevC.96.024619
2017BU04 Phys.Rev. C 95, 024610 (2017) M.Q.Buckner, C.Y.Wu, R.A.Henderson, B.Bucher, N.Wimer, A.Chyzh, T.A.Bredeweg, B.Baramsai, A.Couture, M.Jandel, S.Mosby, J.L.Ullmann Measurement of the 242mAm neutron-induced reaction cross sections NUCLEAR REACTIONS 242mAm(n, γ), (n, F), E=0.023-0.98 eV; measured Eγ, Iγ, σ(E) for both reactions using DANCE array of 160 BaF2 crystals at LANSCE-LLNL facility. Comparison with previous experimental data.
doi: 10.1103/PhysRevC.95.024610
2017BU10 Phys.Rev. C 95, 061602 (2017) M.Q.Buckner, C.Y.Wu, R.A.Henderson, B.Bucher, N.Wimer, A.Chyzh, T.A.Bredeweg, B.Baramsai, A.Couture, M.Jandel, S.Mosby, J.L.Ullmann Comprehensive 242mAm neutron-induced reaction cross sections and resonance parameters NUCLEAR REACTIONS 242mAm(n, γ), (n, F), E=0.1 eV to 1 MeV; measured Eγ, Iγ, neutron capture and neutron-induced fission σ(E) using DANCE array of 160 equal-volume BaF2 crystals at the LANSCE-LLNL Lujan Neutron Scattering Center; deduced neutron-induced resonance energies, Γγ, Γn, and Γf of 106 resonances with energies between 0.15 and 45 eV by analyzing spectra using the R-matrix code SAMMY. Comparison with previous experimental data, and with evaluated data in ENDF/B-VII.1.
doi: 10.1103/PhysRevC.95.061602
2017CO16 Phys.Rev. C 96, 061601 (2017) A.Couture, R.F.Casten, R.B.Cakirli Simple, empirical approach to predict neutron capture cross sections from nuclear masses NUCLEAR REACTIONS 156,158,160,162Nd, 158,160,162,164,166,168Sm, 168Gd, 154,156Dy, 174,176,178W(n, γ), kT=30 keV; deduced Maxwellian capture cross sections from empirical fits of experimental neutron capture cross sections to S(2n) values. Similar analysis carried out for other nuclei such as N>82 Ce, Nd, Hg, Os, Pt, Z=52-56 and odd-N, Z=60-74 nuclei. Comparison with predictions from TALYS and NONSMOKER models. Proposed a simple empirical approach to correlate neutron capture cross sections and nuclear masses. Relevance to astrophysical s- and r-processes, modeling of nuclear reactor designs, and nuclear forensics applications.
doi: 10.1103/PhysRevC.96.061601
2017SP03 J.Phys.(London) G44, 044002 (2017) A.Spyrou, A.C.Larsen, S.N.Liddick, F.Naqvi, B.P.Crider, A.C.Dombos, M.Guttormsen, D.L.Bleuel, A.Couture, L.Crespo Campo, R.Lewis, S.Mosby, M.R.Mumpower, G.Perdikakis, C.J.Prokop, S.J.Quinn, T.Renstrom, S.Siem, R.Surman Neutron-capture rates for explosive nucleosynthesis: the case of 68Ni(n, γ)69Ni RADIOACTIVITY 69Co(β-); measured decay products, Eγ, Iγ; deduced the γ-ray strength function and the nuclear level density, T1/2. Comparison with available data.
doi: 10.1088/1361-6471/aa5ae7
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
2017WE02 Phys.Rev. C 95, 015808 (2017) M.Weigand, C.Beinrucker, A.Couture, S.Fiebiger, M.Fonseca, K.Gobel, M.Heftrich, T.Heftrich, M.Jandel, F.Kappeler, A.Krasa, C.Lederer, H.Y.Lee, R.Plag, A.Plompen, R.Reifarth, S.Schmidt, K.Sonnabend, J.L.Ullmann 63Cu (n, γ) cross section measured via 25 keV activation and time of flight NUCLEAR REACTIONS 63Cu(n, γ), E=75 eV to 500 keV; measured Eγ, Iγ, time of flight, σ(E) by activation with a quasistellar neutron spectrum at JRC-Geel, and the energy dependence of the cross section measured with an isotopically enriched 63Cu sample placed in the center of the DANCE detector array at LANSCE-LANL facility; deduced Maxwellian-averaged cross sections for the whole temperature range relevant for different scenarios of the s-process nucleosynthesis. Comparison with previous experimental measurements and with evaluated cross sections from TENDL-2015.
doi: 10.1103/PhysRevC.95.015808
2016AL19 Phys.Rev. C 94, 034617 (2016) J.B.Albert, S.J.Daugherty, T.N.Johnson, T.O'Conner, L.J.Kaufman, A.Couture, J.L.Ullmann, M.Krticka Measurement of neutron capture on 136Xe NUCLEAR REACTIONS 136Xe(n, γ), E=0.01 eV to 1 MeV; measured prompt Eγ, Iγ, multistep cascade (MSC) spectra using DANCE Los Alamos Neutron Science Center; deduced relative and absolute cross sections, neutron resonance at 2.154 keV, capture cascade γ-ray emission intensities by DICEBOX simulations. Comparison of measured cross section with previous experimental results, and with evaluated data in ENDF-B/VII.1 and JENDL-4.0. Relevance to experiments on 136Xe 0νββ decay and presence of 137Xe contaminant in such experiments.
doi: 10.1103/PhysRevC.94.034617
2016BU09 Phys.Rev. C 93, 044613 (2016) M.Q.Buckner, C.Y.Wu, R.A.Henderson, B.Bucher, A.Chyzh, T.A.Bredeweg, B.Baramsai, A.Couture, M.Jandel, S.Mosby, J.M.O'Donnell, J.L.Ullmann Absolute measurement of the 242Pu neutron-capture cross section NUCLEAR REACTIONS 242Pu(n, γ), E=thermal-several hundred keV; measured Eγ, Iγ, summed γ-ray energy versus cluster multiplicity using LANSC-DANCE at LLNL facility, absolute σ(E) from thermal to ≈40 keV neutrons; deduced energies, Γγ and Γn of neutron resonances from 2.662 eV to 495.0 eV. Comparison with literature and evaluated data in ENDF/B-VII.1.
doi: 10.1103/PhysRevC.93.044613
2016CA41 Phys.Rev. C 94, 061303 (2016) R.F.Casten, J.Jolie, R.B.Cakirli, A.Couture Finite valence nucleon number and rotation-vibration interactions NUCLEAR STRUCTURE 168Er; calculated relative interband B(E2) values with bandmixing formalism and Partial Dynamical Symmetry SU(3) model for deformed nuclei; derived relation between the two approaches. Linkage of rotation-vibration coupling to valence nucleon number. General formalism in the paper with an example of 168Er.
doi: 10.1103/PhysRevC.94.061303
2016DE30 Phys.Rev. C 94, 054612 (2016) D.Denis-Petit, O.Roig, V.Meot, B.Morillon, P.Romain, M.Jandel, T.Kawano, D.J.Vieira, E.M.Bond, T.A.Bredeweg, A.J.Couture, R.C.Haight, A.L.Keksis, R.S.Rundberg, J.L.Ullmann Isomeric ratio measurements for the radiative neutron capture 176Lu(n, γ) at the LANL DANCE facility NUCLEAR REACTIONS 176Lu(n, γ), E=8.5 eV-100 keV; measured Eγ, Iγ, delayed γ spectra using DANCE array at the LANSCE-LANL facility; deduced isomeric ratios to the 5/2-, 761.7 keV and 15/2+, 1356.9 keV nanosecond isomers in 177Lu. Comparison with TALYS calculations using different models for photon strength functions, level densities, and optical potentials.
doi: 10.1103/PhysRevC.94.054612
2016LI30 Phys.Rev.Lett. 116, 242502 (2016) S.N.Liddick, A.Spyrou, B.P.Crider, F.Naqvi, A.C.Larsen, M.Guttormsen, M.Mumpower, R.Surman, G.Perdikakis, D.L.Bleuel, A.Couture, L.C.Campo, A.C.Dombos, R.Lewis, S.Mosby, S.Nikas, C.J.Prokop, T.Renstrom, B.Rubio, S.Siem, S.J.Quinn Experimental Neutron Capture Rate Constraint Far from Stability RADIOACTIVITY 70Co(β-) [from 9Be(86Kr, X), E=140 MeV/nucleon]; measured decay products, Eγ, Iγ; deduced nuclear level density as a function of excitation energy. Comparison with available data. NUCLEAR REACTIONS 69Ni(n, γ), E<10 GK; calculated nuclear reaction capture rates using experimental level densities and code TALYS.
doi: 10.1103/PhysRevLett.116.242502
2016RO08 Phys.Rev. C 93, 034602 (2016) O.Roig, M.Jandel, V.Meot, E.M.Bond, T.A.Bredeweg, A.J.Couture, R.C.Haight, A.L.Keksis, R.S.Rundberg, J.L.Ullmann, D.J.Vieira Radiative neutron capture cross sections on 176Lu at DANCE NUCLEAR REACTIONS 176Lu(n, γ), E=0.02-100 keV; measured Eγ, Iγ, neutron flux, σ(E) using 4π BaF2 array DANCE at LANSCE-LANL; deduced radiative capture yield as function of neutron energy, resonances from 0.138-906 eV, J, Γγ and Γn versus neutron energy, resonance parameters using R-matrix analysis with SAMMY-7.0 code, Maxwellian averaged cross sections (MACS) in a stellar plasma for thermal energies between 5-100 keV. Comparison with theoretical calculations and evaluations in Atlas of Neutron resonances (2006), ENSDF/B-VII.1, JEFF-3.2, BRC and KADoNiS databases, and with previous experimental data.
doi: 10.1103/PhysRevC.93.034602
2016SP04 Phys.Rev.Lett. 117, 142701 (2016) A.Spyrou, S.N.Liddick, F.Naqvi, B.P.Crider, A.C.Dombos, D.L.Bleuel, B.A.Brown, A.Couture, L.Crespo Campo, M.Guttormsen, A.C.Larsen, R.Lewis, P.Moller, S.Mosby, M.R.Mumpower, G.Perdikakis, C.J.Prokop, T.Renstrom, S.Siem, S.J.Quinn, S.Valenta Strong Neutron-γ Competition above the Neutron Threshold in the Decay of 70Co RADIOACTIVITY 70Co(β-) [9Be(86Kr, X)70Co, E=140 MeV/nucleon]; measured decay products, Eβ, Iβ, Eγ, Iγ; deduced β-decay intensity, the large fragmentation of the β intensity at high energies, as well as the strong competition between γ-rays and neutrons. Comparison with shell model calculations.
doi: 10.1103/PhysRevLett.117.142701
2015CO01 Phys.Rev. C 91, 014312 (2015) A.Couture, R.F.Casten, R.B.Cakirli Extended tests of an SU(3) partial dynamical symmetry NUCLEAR STRUCTURE 104,106,108Mo, 168Er, 228Ra, 228,230,232Th, 232,234,236,238U, 238,240Pu; calculated B(E2) for transitions between γ band and ground-state band members. Parameter-free description in terms of a partial SU(3) dynamical symmetry (PDS). Comparison with predictions of pure rotor (Alaga) model, and with experimental results.
doi: 10.1103/PhysRevC.91.014312
2015JA07 Eur.Phys.J. A 51, 179 (2015) M.Jandel, B.Baramsai, E.Bond, G.Rusev, C.Walker, T.A.Bredeweg, M.B.Chadwick, A.Couture, M.M.Fowler, A.Hayes, T.Kawano, S.Mosby, I.Stetcu, T.N.Taddeucci, P.Talou, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy Capture and fission with DANCE and NEUANCE
doi: 10.1140/epja/i2015-15179-7
2015WE14 Phys.Rev. C 92, 045810 (2015) M.Weigand, T.A.Bredeweg, A.Couture, K.Gobel, T.Heftrich, M.Jandel, F.Kappeler, C.Lederer, N.Kivel, G.Korschinek, M.Krticka, J.M.O'Donnell, J.Ostermoller, R.Plag, R.Reifarth, D.Schumann, J.L.Ullmann, A.Wallner 63Ni(n, γ) cross sections measured with DANCE NUCLEAR REACTIONS 63Ni(n, γ), E=40 eV-500 keV; measured Eγ, Iγ, σ(E) using 4π BaF2 array DANCE at LANSCE-LANL, neutron flux; deduced resonances, Maxwellian averaged cross sections (MACS), relative production of isotopes in the vicinity of 63Ni and Ni to As elements for the s process. Comparison with KADoNiS database and experimental data from n_TOF collaboration.
doi: 10.1103/PhysRevC.92.045810
2014CA29 Phys.Rev.Lett. 113, 112501 (2014) R.F.Casten, R.B.Cakirli, K.Blaum, A.Couture Evidence for Partial Dynamical Symmetries in Atomic Nuclei NUCLEAR STRUCTURE 166,168Er, 158Gd, 168Yb, 162Dy, 184W, 184,186Os; analyzed available data; deduced relative B(E2) values, transition properties. Comparison with experimental data.
doi: 10.1103/PhysRevLett.113.112501
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
2014MO04 Phys.Rev. C 89, 034610 (2014) S.Mosby, T.A.Bredeweg, A.Chyzh, A.Couture, R.Henderson, M.Jandel, E.Kwan, J.M.O'Donnell, J.Ullmann, C.Y.Wu Improved neutron capture cross section of 239Pu NUCLEAR REACTIONS 239Pu(n, γ), E=10-1000 eV; measured Eγ, Iγ, (fission fragment)γ-coin, time-of-flight spectrum, fission σ(E), ratio of capture to fission σ(E), α-particle derived capture σ(E), integrated σ using DANCE detector and a parallel-plate avalanche counter (PPAC) at LANSCE-LLNL facility. Comparison with theoretical calculations, ENDF/B-VII.1 evaluation, and with previous experimental data.
doi: 10.1103/PhysRevC.89.034610
2014MO21 Nucl.Data Sheets 119, 31 (2014) S.Mosby, C.Arnold, T.A.Bredeweg, A.Chyzh, A.Couture, R.Henderson, M.Jandel, E.Kwan, J.M.O'Donnell, G.Rusev, J.L.Ullmann, C.Y.Wu Neutron Capture Cross Section of 239Pu NUCLEAR REACTIONS 239Pu(n, γ), E=10 eV - 100 keV; measured prompt fission Eγ, Iγ using DANCE; deduced σ. Preliminary. Compared to ENDF/B-VII.1.
doi: 10.1016/j.nds.2014.08.010
2014RO17 Nucl.Data Sheets 119, 165 (2014) O.Roig, C.Theroine, A.Ebran, V.Meot, E.M.Bond, T.A.Bredeweg, A.Couture, R.C.Haight, M.Jandel, F.M.Nortier, J.M.O'Donnell, R.S.Rundberg, W.A.Taylor, J.L.Ullmann, D.J.Vieira Measurement of 173Lu(n, γ) Cross Sections at DANCE NUCLEAR REACTIONS 173Lu(n, γ), E=0-200 eV[target from Hf(p, xn)]; measured Eγ, Iγ using DANCE array; deduced radiative capture yield vs neutron energy, reduced neutron width vs neutron energy, resonances, resonance parameters; calculated radiative neutron capture σ from resonance parameters using SAMMY-7.0, σ from ROSFOND2010 data using TALYS.
doi: 10.1016/j.nds.2014.08.046
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
2013CH15 Phys.Rev. C 87, 034620 (2013) A.Chyzh, C.Y.Wu, E.Kwan, R.A.Henderson, J.M.Gostic, T.A.Bredeweg, A.Couture, R.C.Haight, A.C.Hayes-Sterbenz, M.Jandel, H.Y.Lee, J.M.O'Donnell, J.L.Ullmann Systematics of prompt γ-ray emission in fission NUCLEAR REACTIONS 235U, 239,241Pu(n, F), E=thermal to 1 MeV; measured prompt Eγ, Iγ, charged particles, (particle)γ(t), γ multiplicity, total γ-ray energy vs cluster multiplicity, TOF using DANCE array and PPACs at LANSCE facility. Possible population of pygmy resonances. Comparison of measured γ-ray multiplicity distributions with iterative Bayesian and SVD methods.
doi: 10.1103/PhysRevC.87.034620
2013CH48 Phys.Rev. C 88, 044607 (2013) A.Chyzh, C.Y.Wu, E.Kwan, R.A.Henderson, J.M.Gostic, T.A.Bredeweg, A.Couture, R.C.Haight, H.Y.Lee, J.M.O'Donnell, J.L.Ullmann Precision measurement of the 238Pu (n, γ) cross section NUCLEAR REACTIONS 238Pu(n, γ), E=thermal-30 keV; measured Eγ, Iγ, summed-γ spectra, γ-ray multiplicity, precise σ(E) using DANCE array at LANSCE facility; deduced resonance parameters, energies, γ and neutron widths from 2.87 eV to 407 eV energy region. Comparison with evaluated data in ENDF/B-VII.1.
doi: 10.1103/PhysRevC.88.044607
2013EN02 Phys.Rev. C 88, 014604 (2013) J.W.Engle, S.G.Mashnik, J.W.Weidner, L.E.Wolfsberg, M.E.Fassbender, K.Jackman, A.Couture, L.J.Bitteker, J.L.Ullmann, M.S.Gulley, C.Pillai, K.D.John, E.R.Birnbaum, F.M.Nortier Cross sections from proton irradiation of thorium at 800 MeV NUCLEAR REACTIONS 232Th(p, X)7Be/46Sc/48Sc/59Fe/74As/76As/77Br/82Br/86Rb/87Y/87mY/88Y/91Sr/95Nb/96Nb/95Tc/96Tc/99Tc/95Zr/99Mo/100Pd/100Rh/105Rh/103Ru/105Ru/106mAg/110mAg/111In/114mIn/115Cd/117mSn/120Sb/122Sb/124Sb/126Sb/127Sb/121mTe/123mTe/123I/124I/126I/130I/131I/133I/135I/127Xe/135Xe/131Ba/140Ba/134Cs/136Cs/139Ce/143Ce/188Pt/200Pb/203Bi/205Bi/204Po/206Po/207Po/209At/210At/211Rn/226Ac, E=800 MeV; measured Eγ, Iγ, σ by activation method at WNRF-LANSCE, Los Alamos facility. 99Mo, 139,143Ce, 140Ba, 203,205Bi, 223,225Ra, 225,226,227Ac; deduced yields and instantaneous reaction rates. Comparison of measured cross sections with calculations using CEM03.03, Bertini, and INCL+ABLA transportation codes of MCNP6 event generator; and with previous experimental data. Application to design of spallation-based radioisotope production for multiple radiotherapeutic pharmaceutical agents.
doi: 10.1103/PhysRevC.88.014604
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
2013RU05 Phys.Rev. C 87, 054603 (2013) G.Rusev, M.Jandel, M.Krticka, T.A.Bredeweg, A.Couture, T.N.Taddeucci, J.L.Ullmann γ-ray cascade transitions in 112Cd and 114Cd following resonance capture of epithermal neutrons NUCLEAR REACTIONS 111,113Cd(n, γ), E=epithermal; measured E(n), I(n), TOF, Eγ, Iγ, γγ-coin, σ, multiplicity distribution using DANCE calorimeter at LANSCE facility. 112,114Cd; deduced levels, resonances, J, π, neutron, two-step γ cascades and radiative width of s-wave resonances, E1, M1 and E2 strength function. Comparison with statistical-model calculations using DICEBOX code, SLO and KMF models.
doi: 10.1103/PhysRevC.87.054603
2013RU14 Phys.Rev. C 88, 057602 (2013) G.Rusev, M.Jandel, M.Krticka, C.W.Arnold, T.A.Bredeweg, A.Couture, W.A.Moody, S.M.Mosby, J.L.Ullmann Cascade γ rays following capture of thermal neutrons on 113Cd NUCLEAR REACTIONS 113Cd(n, γ), E=0.178 eV; measured Eγ, Iγ, γγ-coin using DANCE array of BaF2 detectors at LANSCE-LANL facility; deduced multiplicity of γ cascades. DICEBOX analysis. GEANT4 simulations. Comparison with ENDF-6 evaluation.
doi: 10.1103/PhysRevC.88.057602
2013UL01 Phys.Rev. C 87, 044607 (2013) J.L.Ullmann, E.M.Bond, T.A.Bredeweg, A.Couture, R.C.Haight, M.Jandel, T.Kawano, H.Y.Lee, J.M.O'Donnell, A.C.Hayes, I.Stetcu, T.N.Taddeucci, P.Talou, D.J.Vieira, J.B.Wilhelmy, J.A.Becker, A.Chyzh, J.Gostic, R.Henderson, E.Kwan, C.Y.Wu Prompt γ-ray production in neutron-induced fission of 239Pu NUCLEAR REACTIONS 239Pu(n, F), E<30 keV; measured prompt Eγ, Iγ, fission σ(E), Gamma-ray multiplicity using DANCE γ-ray calorimeter at LANSCE facility; deduced average multiplicity, average total energy. GEANT4 simulation of DANCE detector. Fission Tagging. Comparison with Monte Carlo Hauser-Feshbach (MCHF) calculations, previous experimental studies, and with ENDF/B-VII.
doi: 10.1103/PhysRevC.87.044607
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
2012CO11 Phys.Rev. C 85, 054004 (2012) A.H.Couture, T.B.Clegg, S.Tajima, C.R.Howell, B.Fallin, J.H.Esterline, A.S.Crowell, B.J.Crowe, D.M.Markoff, L.C.Cumberbatch, R.S.Pedroni, H.Witala Cross-section measurements of 2H(n, np)n in symmetric star configurations NUCLEAR REACTIONS 2H(n, np), E=16, 19 MeV; measured particle spectra, time-of-flight, np-coin, σ in space-star (SST) and coplanar star (CST) neutron-deuteron breakup configurations. Comparison with Monte Carlo simulations based on rigorous three-nucleon Faddeev calculations. Discussed discrepancies between data and theory; deficiencies in theoretical treatment of three-nucleon forces or in knowledge of the neutron-neutron 1S0 force.
doi: 10.1103/PhysRevC.85.054004
2012DE08 Phys.Rev. C 85, 045804 (2012) R.J.de Boer, A.Couture, R.Detwiler, J.Gorres, P.Tischhauser, E.Uberseder, C.Ugalde, E.Stech, M.Wiescher, R.E.Azuma Measurement of elastic 12C + α scattering: Above the proton separation energy NUCLEAR REACTIONS 12C(α, α), E=2.6-8.2 MeV; measured Eα, Iα, σ(E, θ). 12C(α, α'), (α, p), E=6.6-8.2 MeV; analyzed σ(E, θ) data. 16O; deduced resonances, levels, J, π, α and proton widths. R-matrix analysis. Relevance to CNO cycle.
doi: 10.1103/PhysRevC.85.045804
2012EN04 Nucl.Phys. A893, 87 (2012) J.W.Engle, S.G.Mashnik, H.Bach, A.Couture, K.Jackman, R.Gritzo, B.D.Ballard, M.Fassbender, D.M.Smith, L.J.Bitteker, J.L.Ullmann, M.S.Gulley, C.Pillai, K.D.John, E.R.Birnbaum, F.M.Nortier Cross sections from 800 MeV proton irradiation of terbium NUCLEAR REACTIONS 159Tb(p, X), E=795.4 MeV; measured thick target activation Eγ, Iγ(t); deduced 7Be, 54Mn, 60Co, 113Sn, 129Cs, 128,131,133Ba, 139,141Ce, 143,144,146Pm, 145,153Sm, 145,146,147,148,149,150,155,156Eu, 146,149,151,153Gd, 151,152,153,155,156m2,158Tb production σ; calculated fragments σ using CEOM03.03, Bertini INC+MPM (multistage preequilibrium model)+EVAP, INCL+ABLA codes.
doi: 10.1016/j.nuclphysa.2012.08.001
2012JA16 Phys.Rev.Lett. 109, 202506 (2012) M.Jandel, T.A.Bredeweg, E.M.Bond, M.B.Chadwick, A.Couture, J.M.O'Donnell, M.Fowler, R.C.Haight, T.Kawano, R.Reifarth, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, J.M.Wouters, J.B.Wilhelmy, C.Y.Wu, J.A.Becker New Precision Measurements of the 235U(n, γ) Cross Section NUCLEAR REACTIONS 235U(n, γ), (n, F), E=0.000004-1 MeV; measured reaction products, Eγ, Iγ; deduced thick-target σ. Comparison with ENDF/B-VII, JENDL-4 evaluated libraries and available data.
doi: 10.1103/PhysRevLett.109.202506
2012WE09 Appl.Radiat.Isot. 70, 2590 (2012) J.W.Weidner, S.G.Mashnik, K.D.John, B.Ballard, E.R.Birnbaum, L.J.Bitteker, A.Couture, M.E.Fassbender, G.S.Goff, R.Gritzo, F.M.Hemez, W.Runde, J.L.Ullmann, L.E.Wolfsberg, F.M.Nortier 225Ac and 223Ra production via 800 MeV proton irradiation of natural thorium targets NUCLEAR REACTIONS Th(p, X)225Ac/227Ac/223Ra/225Ra/227Th, E=800 MeV; measured reaction products, Eγ, Iγ, Eα, Iα; deduced production rate s, yields, cumulative σ. Comparison with theoretical calculations.
doi: 10.1016/j.apradiso.2012.07.003
2012WE10 Appl.Radiat.Isot. 70, 2602 (2012) J.W.Weidner, S.G.Mashnik, K.D.John, F.Hemez, B.Ballard, H.Bach, E.R.Birnbaum, L.J.Bitteker, A.Couture, D.Dry, M.E.Fassbender, M.S.Gulley, K.R.Jackman, J.L.Ullmann, L.E.Wolfsberg, F.M.Nortier Proton-induced cross sections relevant to production of 225Ac and 223Ra in natural thorium targets below 200 MeV NUCLEAR REACTIONS Th(p, X)223Ra/225Ra/225Ac/227Th, E<200 MeV; measured reaction products, Eγ, Iγ; deduced cumulative σ, production rates, yields. Comparison with available data.
doi: 10.1016/j.apradiso.2012.07.006
2011BE47 Eur.Phys.J. A 47, 160 (2011) F.Belloni, M.Calviani, N.Colonna, P.Mastinu, P.M.Milazzo, U.Abbondanno, G.Aerts, H.Alvarez, F.Alvarez-Velarde, S.Andriamonje, J.Andrzejewski, L.Audouin, G.Badurek, M.Barbagallo, P.Baumann, F.Becvar, E.Berthoumieux, F.Calvino, D.Cano-Ott, R.Capote, C.Carrapico, P.Cennini, V.Chepel, E.Chiaveri, G.Cortes, A.Couture, J.Cox, M.Dahlfors, S.David, I.Dillmann, C.Domingo-Pardo, W.Dridi, I.Duran, C.Eleftheriadis, M.Embid-Segura, A.Ferrari, R.Ferreira-Marques, K.Fujii, W.Furman, I.Goncalves, E.Gonzalez-Romero, A.Goverdovski, F.Gramegna, C.Guerrero, F.Gunsing, B.Haas, R.Haight, M.Heil, A.Herrera-Martinez, M.Igashira, E.Jericha, F.Kappeler, Y.Kadi, D.Karadimos, D.Karamanis, M.Kerveno, P.Koehler, E.Kossionides, M.Krticka, C.Lamboudis, H.Leeb, A.Lindote, I.Lopes, M.Lozano, S.Lukic, J.Marganiec, S.Marrone, T.Martinez, C.Massimi, M.H.Meaze, A.Mengoni, C.Moreau, M.Mosconi, F.Neves, H.Oberhummer, S.O'Brien, J.Pancin, C.Papachristodoulou, C.Papadopoulos, C.Paradela, N.Patronis, A.Pavlik, P.Pavlopoulos, L.Perrot, M.T.Pigni, R.Plag, A.Plompen, A.Plukis, A.Poch, J.Praena, C.Pretel, J.Quesada, T.Rauscher, R.Reifarth, M.Rosetti, C.Rubbia, G.Rudolf, P.Rullhusen, J.Salgado, C.Santos, L.Sarchiapone, I.Savvidis, C.Stephan, G.Tagliente, J.L.Tain, D.Tarrio, L.Tassan-Got, L.Tavora, R.Terlizzi, G.Vannini, P.Vaz, A.Ventura, D.Villamarin, M.C.Vincente, V.Vlachoudis, R.Vlastou, F.Voss, S.Walter, M.Wiescher, K.Wisshak Measurement of the neutron-induced fission cross-section of 243Am relative to 235U from 0.5 to 20 MeV NUCLEAR REACTIONS 235U, 243Am(n, F), E=0.5-20 MeV; measured fission products using n_TOF fast ionization chamber; deduced σ; calculated σ using EMPIRE code. Compared with other data, ENDF/B-VII.0, JENDL-4.0, JEFF-3.1.1, ROSFOND, BROND-2.2.
doi: 10.1140/epja/i2011-11160-x
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
2011MA82 J.Phys.:Conf.Ser. 312, 042014 (2011) L.Martin, L.Buchmann, J.F.Carpino, A.Chen, A.Couture, B.Davids, J.Fallis, S.P.Fox, U.Hager, A.Hussein, A.M.Laird, K.Olchanski, D.Ottewell, C.Ruiz, G.Ruprecht, G.Sheffer, S.Sjue, O.Tengblad, F.Tovesson NEURAL - a tracking detector for neutron-induced reactions of astrophysical importance
doi: 10.1088/1742-6596/312/4/042014
2011TA17 Phys.Rev. C 84, 015801 (2011) G.Tagliente, P.M.Milazzo, K.Fujii, U.Abbondanno, G.Aerts, H.Alvarez, F.Alvarez-Velarde, S.Andriamonje, J.Andrzejewski, L.Audouin, G.Badurek, P.Baumann, F.Becvar, F.Belloni, E.Berthoumieux, S.Bisterzo, F.Calvino, M.Calviani, D.Cano-Ott, R.Capote, C.Carrapico, P.Cennini, V.Chepel, E.Chiaveri, N.Colonna, G.Cortes, A.Couture, J.Cox, M.Dahlfors, S.David, I.Dillmann, C.Domingo-Pardo, W.Dridi, I.Duran, C.Eleftheriadis, M.Embid-Segura, A.Ferrari, R.Ferreira-Marques, W.Furman, R.Gallino, I.Goncalves, E.Gonzalez-Romero, F.Gramegna, C.Guerrero, F.Gunsing, B.Haas, R.Haight, M.Heil, A.Herrera-Martinez, E.Jericha, F.Kappeler, Y.Kadi, D.Karadimos, D.Karamanis, M.Kerveno, E.Kossionides, M.Krticka, C.Lamboudis, H.Leeb, A.Lindote, I.Lopes, M.Lozano, S.Lukic, J.Marganiec, S.Marrone, T.Martnez, C.Massimi, P.Mastinu, A.Mengoni, C.Moreau, M.Mosconi, F.Neves, H.Oberhummer, S.O'Brien, J.Pancin, C.Papachristodoulou, C.Papadopoulos, C.Paradela, N.Patronis, A.Pavlik, P.Pavlopoulos, L.Perrot, M.T.Pigni, R.Plag, A.Plompen, A.Plukis, A.Poch, J.Praena, C.Pretel, J.Quesada, T.Rauscher, R.Reifarth, M.Rosetti, C.Rubbia, G.Rudolf, P.Rullhusen, J.Salgado, C.Santos, L.Sarchiapone, I.Savvidis, C.Stephan, J.L.Tain, L.Tassan-Got, L.Tavora, R.Terlizzi, G.Vannini, P.Vaz, A.Ventura, D.Villamarin, M.C.Vincente, V.Vlachoudis, R.Vlastou, F.Voss, S.Walter, M.Wiescher, K.Wisshak Neutron capture on 94Zr: Resonance parameters and Maxwellian-averaged cross sections NUCLEAR REACTIONS 94Zr(n, γ), E=0.001-60 keV; measured E(n), I(n), capture yield using CERN n_TOF neutron source; deduced resonance parameters ER, gamma and neutron widths, capture kernels; calculated Maxwellian-averaged capture cross sections. 95Zr; deduced resonances, J, l-values, R-matrix analysis. Comparison with previous studies. Discussed astrophysical implications.
doi: 10.1103/PhysRevC.84.015801
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
2010DA18 Phys.Rev. C 82, 034002 (2010) T.V.Daniels, C.W.Arnold, J.M.Cesaratto, T.B.Clegg, A.H.Couture, H.J.Karwowski, T.Katabuchi Spin-correlation coefficients and phase-shift analysis for p+3He elastic scattering NUCLEAR REACTIONS 3He(polarized p, p), E=2-6 MeV; measured Ep, Ip, analyzing powers; deduced phase shifts, spin-correlation coefficients using polarized 3He target. Comparison with theoretical calculations using realistic nucleon-nucleon potential models.
doi: 10.1103/PhysRevC.82.034002
2010LA05 Phys.Rev. C 82, 015502 (2010) C.M.Lavelle, C.-Y.Liu, W.Fox, G.Manus, P.M.McChesney, D.J.Salvat, Y.Shin, M.Makela, C.Morris, A.Saunders, A.Couture, A.R.Young Ultracold-neutron production in a pulsed-neutron beam line NUCLEAR REACTIONS 2H, 16O(n, n), E=ultracold; measured σ, γ-spectra, Bragg reflection spectra, low-temperature dependence on yield of ultracold neutrons. Liquid orthodeuterium and solid oxygen targets. Pulse-neutron incident beam.
doi: 10.1103/PhysRevC.82.015502
2009LE23 Phys.Rev. C 80, 025805 (2009) H.Y.Lee, M.Couder, A.Couture, S.Falahat, J.Gorres, L.Lamm, P.J.LeBlanc, S.O'Brien, A.Palumbo, E.Stech, E.Strandberg, W.Tan, C.Ugalde, M.Wiescher Cross-section measurement of the 18F(α, p)21Ne reaction and possible implication for neutron production in explosive helium burning NUCLEAR REACTIONS 21Ne(p, α)18F, E=2.3-4.0 MeV; measured Eγ, Iγ, decay curves, half-lives; deduced reaction yields and σ by R-matrix analysis. 18F(α, p)21Ne, E=0.5-2.1 MeV; deduced σ and reaction rates. Comparison with Hauser-Feshbach calculations. Discussed implications for astrophysical r-process and evolution of elemental abundances in supernovae.
doi: 10.1103/PhysRevC.80.025805
2009TA09 Phys.Rev. C 79, 055805 (2009) W.P.Tan, J.Gorres, M.Beard, M.Couder, A.Couture, S.Falahat, J.L.Fisker, L.Lamm, P.J.LeBlanc, H.Y.Lee, S.O'Brien, A.Palumbo, E.Stech, E.Strandberg, M.Wiescher Measurement of the decay branching ratios of the α-unbound states in 19Ne and the 15O(α, γ) reaction rate NUCLEAR REACTIONS 19F(3He, t), E=24 MeV; measured triton spectra, tα-coin, α(θ), α-decay branching ratios. 19Ne; deduced levels, J, π, α-unbound resonances. 15O(α, γ); deduced reaction rates versus temperature.
doi: 10.1103/PhysRevC.79.055805
2009TI02 Phys.Rev. C 79, 055803 (2009) P.Tischhauser, A.Couture, R.Detwiler, J.Gorres, C.Ugalde, E.Stech, M.Wiescher, M.Heil, F.Kappeler, R.E.Azuma, L.Buchmann Measurement of elastic 12C+α scattering: Details of the experiment, analysis, and discussion of phase shifts NUCLEAR REACTIONS 12C(α, α), E=2.6-8.2 MeV; measured Eα, Iα, σ(θ); deduced phase shifts using R-matrix analysis. 16O; deduced levels, resonances, α-widths. Application to 12C(α, γ)16O reaction of astrophysical interest.
doi: 10.1103/PhysRevC.79.055803
2008CO03 Phys.Rev. C 77, 015802 (2008) A.Couture, M.Beard, M.Couder, J.Gorres, L.Lamm, P.J.LeBlanc, H.Y.Lee, S.O'Brien, A.Palumbo, E.Stech, E.Strandberg, W.Tan, E.Uberseder, C.Ugalde, M.Wiescher, R.Azuma Measurement of the 19F(p, γ)20Ne reaction and interference terms from Ec.m.=200-760 keV NUCLEAR REACTIONS 19F(p, γ), E(cm)=200-700 keV; measured Eγ, Iγ, resonance parameters, interference signs. 20Ne, 16O, 19F; deduced levels, J, π.
doi: 10.1103/PhysRevC.77.015802
2008DO05 J.Phys.(London) G35, 014020 (2008) C.Domingo-Pardo, U.Abbondanno, G.Aerts, H.Alvarez, F.Alvarez-Velarde, S.Andriamonje, J.Andrzejewski, P.Assimakopoulos, L.Audouin, G.Badurek, P.Baumann, F.Becvar, E.Berthoumieux, S.Bisterzo, F.Calvino, M.Calviani, D.Cano-Ott, R.Capote, C.Carrapico, P.Cennini, V.Chepel, N.Colonna, G.Cortes, A.Couture, J.Cox, M.Dahlfors, S.David, I.Dillmann, W.Dridi, I.Duran, C.Eleftheriadis, M.Embid-Segura, L.Ferrant, A.Ferrari, R.Ferreira-Marques, K.Fujii, W.Furman, R.Gallino, I.Goncalves, E.Gonzalez-Romero, F.Gramegna, C.Guerrero, F.Gunsing, B.Haas, R.Haight, M.Heil, A.Herrera-Martinez, M.Igashira, E.Jericha, Y.Kadi, F.Kappeler, D.Karadimos, D.Karamanis, M.Kerveno, P.Koehler, E.Kossionides, M.Krticka, C.Lamboudis, H.Leeb, A.Lindote, I.Lopes, M.Lozano, S.Lukic, J.Marganiec, S.Marrone, C.Massimi, P.Mastinu, A.Mengoni, P.M.Milazzo, M.Mosconi, F.Neves, H.Oberhummer, S.O'Brien, J.Pancin, C.Papachristodoulou, C.Papadopoulos, C.Paradela, N.Patronis, A.Pavlik, P.Pavlopoulos, L.Perrot, M.T.Pigni, R.Plag, A.Plompen, A.Plukis, A.Poch, C.Pretel, J.Quesada, T.Rauscher, R.Reifarth, C.Rubbia, G.Rudolf, P.Rullhusen, J.Salgado, C.Santos, L.Sarchiapone, I.Savvidis, C.Stephan, G.Tagliente, J.L.Tain, L.Tassan-Got, L.Tavora, R.Terlizzi, G.Vannini, P.Vaz, A.Ventura, D.Villamarin, M.C.Vincente, V.Vlachoudis, R.Vlastou, F.Voss, S.Walter, M.Wiescher, K.Wisshak The measurement of the 206Pb(n, γ) cross section and stellar implications NUCLEAR REACTIONS 206Pb(n, γ), E=0.001-1000 keV; measured Eγ, Iγ, capture cross sections. Deduced maxwellian averaged sections.
doi: 10.1088/0954-3899/35/1/014020
2008ES01 Phys.Rev. C 77, 034309 (2008) E.-I.Esch, R.Reifarth, E.M.Bond, T.A.Bredeweg, A.Couture, S.E.Glover, U.Greife, R.C.Haight, A.M.Hatarik, R.Hatarik, M.Jandel, T.Kawano, A.Mertz, J.M.O'Donnell, R.S.Rundberg, J.M.Schwantes, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters Measurement of the 237Np(n, γ) cross section from 20 meV to 500 keV with a high efficiency, highly segmented 4π BaF2 detector NUCLEAR REACTIONS 237Np(n, γ), E=0.02-500 keV; measured σ, neutron flux, Eγ, Iγ, time-of-flight spectra, α-spectra. DANCE array. Comparisons with Hauser-Feshbach-Moldauer calculations.
doi: 10.1103/PhysRevC.77.034309
2008HE11 Phys.Rev. C 78, 025803 (2008) M.Heil, R.Detwiler, R.E.Azuma, A.Couture, J.Daly, J.Goerres, F.Kappeler, R.Reifarth, P.Tischhauser, C.Ugalde, M.Wiescher The 13C(α, n) reaction and its role as a neutron source for the s process NUCLEAR REACTIONS 13C(α, n), E(cm)=320-700 keV; 13C(α, α), E=2.6-6.2 MeV; measured radii, σ, σ(θ), S-factor. 17O; deduced levels, J, π, resonance parameters.16O(n, n), (n, αγ); analyzed σ. R-matrix analysis.
doi: 10.1103/PhysRevC.78.025803
2008JA08 Phys.Rev. C 78, 034609 (2008); Publishers Note Phys.Rev. C 78, 049904 (2008) M.Jandel, T.A.Bredeweg, E.M.Bond, M.B.Chadwick, R.R.Clement, A.Couture, J.M.O'Donnell, R.C.Haight, T.Kawano, R.Reifarth, R.S.Rundberg, J.L.Ullmann, D.J.Vieira, J.B.Wilhelmy, J.M.Wouters, U.Agvaanluvsan, W.E.Parker, C.Y.Wu, J.A.Becker Neutron capture cross section of 241Am NUCLEAR REACTIONS 241Am(n, γ), E=0.02 eV-320 keV; measured Eγ, Iγ, σ, resonance parameters. Comparison with evaluated cross sections databases.
doi: 10.1103/PhysRevC.78.034609
2008RE01 Phys.Rev. C 77, 015804 (2008) R.Reifarth, M.Heil, C.Forssen, U.Besserer, A.Couture, S.Dababneh, L.Dorr, J.Gorres, R.C.Haight, F.Kappeler, A.Mengoni, S.O'Brien, N.Patronis, R.Plag, R.S.Rundberg, M.Wiescher, J.B.Wilhelmy The 14C(n, γ) cross section between 10 keV and 1 MeV NUCLEAR REACTIONS 14C(n, γ), E=10-1000 keV; measured neutron spectra, neutron flux, Eγ, Iγ, cross sections; deduced reaction rate. 15C; measured half-life.
doi: 10.1103/PhysRevC.77.015804
2008ST11 Phys.Rev. C 77, 055801 (2008) E.Strandberg, M.Beard, M.Couder, A.Couture, S.Falahat, J.Gorres, P.J.LeBlanc, H.Y.Lee, S.O'Brien, A.Palumbo, E.Stech, W.P.Tan, C.Ugalde, M.Wiescher, H.Costantini, K.Scheller, M.Pignatari, R.Azuma, L.Buchmann 24Mg(α, γ)28Si resonance parameters at low alpha-particle energies NUCLEAR REACTIONS 24Mg(α, γ), E=1.0-1.5 MeV; measured Eγ, Iγ, γγ-coin, branching ratios, resonance strengths. 28Si; deduced levels, J, π, reaction rates. 13C, 17O, 21,22Ne, 25Mg(α, n); 16O, 20Ne(α, γ); 23Na, 24Mg, 27Al(p, γ); 23Na, 24Mg, 27Al, 28Si(n, γ); 25Al(γ, p); 27Al(p, α); analyzed reaction rates.
doi: 10.1103/PhysRevC.77.055801
2008UG01 Phys.Rev. C 77, 035801 (2008) C.Ugalde, R.E.Azuma, A.Couture, J.Gorres, H.Y.Lee, E.Stech, E.Strandberg, W.Tan, M.Wiescher Thermonuclear rate for the 19F(α, p)22Ne reaction at stellar temperatures NUCLEAR REACTIONS 19F(α, p), E=792-1993 keV; measured yield curves, σ, σ(θ), reaction rate at stellar temperatures; calculated low energy S-factor. R-matrix analysis.
doi: 10.1103/PhysRevC.77.035801
2007CO19 At.Data Nucl.Data Tables 93, 807 (2007) Direct measurements of neutron capture on radioactive isotopes
doi: 10.1016/j.adt.2007.06.003
2005TA28 Phys.Rev. C 72, 041302 (2005) W.P.Tan, J.Gorres, J.Daly, M.Couder, A.Couture, H.Y.Lee, E.Stech, E.Strandberg, C.Ugalde, M.Wiescher Lifetime of the astrophysically important 4.03-MeV state in 19Ne NUCLEAR REACTIONS 17O(3He, n), E=3.0 MeV; measured Eγ, Iγ, nγ-coin, DSA. 19Ne levels deduced energies, T1/2. Astrophysical implications discussed. Comparison with model predictions.
doi: 10.1103/PhysRevC.72.041302
2005UG04 Nucl.Phys. A758, 577c (2005) C.Ugalde, R.Azuma, A.Couture, J.Gorres, M.Heil, K.Scheller, E.Stech, W.Tan, M.Wiescher The reaction rate for the destruction of fluorine in AGB stars NUCLEAR REACTIONS 19F(α, p), E=1238-2009 keV; measured yields; deduced astrophysical reaction rates.
doi: 10.1016/j.nuclphysa.2005.05.106
2004RA29 Phys.Rev. C 70, 065803 (2004) U.Ratzel, C.Arlandini, F.Kappeler, A.Couture, M.Wiescher, R.Reifarth, R.Gallino, A.Mengoni, C.Travaglio Nucleosynthesis at the termination point of the s process NUCLEAR REACTIONS 208Pb, 209Bi(n, γ), E=spectrum; measured σ. Astrophysical implications discussed. Activation technique.
doi: 10.1103/PhysRevC.70.065803
2003GO21 Nucl.Phys. A718, 155c (2003) J.Gorres, S.Dababneh, A.Couture, M.Heil, F.Kappeler, H.Leiste, M.Lugaro, C.Ugalde, M.Wiescher Nucleosynthesis in TP-AGB Stars and the Production of 19F NUCLEAR REACTIONS 18O(α, γ), E ≈ 470, 566 MeV; measured Eγ, Iγ, γγ-coin; deduced resonance strengths, reaction rate. Implications for 19F nucleosynthesis discussed.
doi: 10.1016/S0375-9474(03)00707-3
2001HE22 Nucl.Phys. A688, 499c (2001) M.Heil, A.Couture, J.Daly, R.Detwiler, J.Gorres, G.Hale, F.Kappeler, R.Reifarth, U.Giesen, E.Stech, P.Tischhauser, C.Ugalde, M.Wiescher A Measurement of the 13C(α, α) Differential Cross Section and Its Application to the 13C(α, n) Reaction NUCLEAR REACTIONS 13C(α, α), E=2.6-6.2 MeV; measured σ(θ). 13C(α, n), E=0-2 MeV; calculated σ, S-factor following r-matrix analysis of elastic scattering data. Comparison with earlier results for s-process conditions.
doi: 10.1016/S0375-9474(01)00768-0
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