NSR Query Results
Output year order : Descending NSR database version of March 21, 2024. Search: Author = J.Last Found 22 matches. 1999AH07 Phys.Rev. C60, 064601 (1999) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, C.M.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, A.L.Hallin, Th.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.M.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, A.R.Young, J.E.Yurkon Positron-Electron Pairs Produced in Heavy-Ion Collisions NUCLEAR REACTIONS 232Th(238U, X), E=5.95 MeV/nucleon; 181Ta(238U, X), E=5.95, 6.1, 6.3 MeV/nucleon; measured positron, electron spectra, multiplicities, e-e+-coin, angular correlation; deduced no sharp structure in sum-energy spectra. APEX spectrometer.
doi: 10.1103/PhysRevC.60.064601
1997AB32 Phys.Lett. 407B, 212 (1997) H.Abele, S.Baessler, D.Dubbers, J.Last, U.Mayerhofer, C.Metz, T.M.Muller, V.Nesvizhevsky, C.Raven, O.Scharpf, O.Zimmer A Measurement of the Beta Asymmetry A in the Decay of Free Neutrons RADIOACTIVITY 1n(β-); measured β asymmetry from polarized neutron decay; deduced axial vector to vector coupling constants ratio, right-handed currents limits.
doi: 10.1016/S0370-2693(97)00739-9
1997AH01 Phys.Rev.Lett. 78, 618 (1997) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.R.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.Young, J.E.Yurkon, and the APEX Collaboration Search for Monoenergetic Positron Emission from Heavy-Ion Collisions at Coulomb-Barrier Energies NUCLEAR REACTIONS 181Ta(238U, X), E=5.95-6.3 MeV/nucleon; 232Th(238U, X), E=5.95 MeV/nucleon; measured positron energy spectra; deduced no structure.
doi: 10.1103/PhysRevLett.78.618
1997AH04 Phys.Rev. C55, R2755 (1997) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.A.Chishti, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, J.S.Greenberg, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.Young, J.E.Yurkon, and the APEX Collaboration Internal Pair Conversion in Heavy Nuclei NUCLEAR REACTIONS 206Pb(206Pb, X), E=5.90 MeV/nucleon; measured e+e--sum energy spectra, Doppler corrected Eγ; deduced internal pair conversion to gamma branching ratio. 232Th(208Pb, X), E=5.80 MeV/nucleon; 238U(208Pb, X), E=5.80 MeV/nucleon; 181Ta(238U, X), E=5.95 MeV/nucleon; 232Th(238U, X), E=5.90 MeV/nucleon; measured e+e--sum energy, Doppler corrected Eγ; deduced no discrete lines evidence in e+e- spectra. 238U deduced new levels evidence.
doi: 10.1103/PhysRevC.55.R2755
1997AH05 Z.Phys. A358, 235 (1997) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, A.Young, J.E.Yurkon, and the APEX Collaboration The Positron-Electron Peak Puzzle: Results from APEX NUCLEAR REACTIONS 232Th(238U, X), E=5.78-5.95 MeV/nucleon; 181Ta(238U, X), E=5.79-6.3 MeV/nucleon; measured total (e+)(heavy-ion)-, (e+e-)(heavy-ion)-coin events number; deduced very low light neutral particle production upper limits.
doi: 10.1007/s002180050316
1996AH05 Acta Phys.Pol. B27, 387 (1996) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.Gazes, A.L.Hallin, T.Happ, N.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, A.Young, J.E.Yurkon, and the APEX Collaboration The Positron Peak Puzzle - Recent Results from APEX NUCLEAR REACTIONS 232Th(238U, X), E=5.95 MeV/nucleon; 181Ta(238U, X), E=5.96-6.3 MeV/nucleon; 206Pb(206Pb, X), E not given; analyzed e+e--sum energy spectra. 232Th, 238U(208Pb, X), E=5.8 MeV/nucleon; 232Th, 181Ta(238U, X), E=5.95 MeV/nucleon; 206Pb(206Pb, X), E=5.9 MeV/nucleon; analyzed Doppler reconstructed γ spectra; deduced limits on 1.78 MeV 238U transition possible contribution to (heavy ion)γ-coin.
1996AH07 Nucl.Instrum.Methods Phys.Res. A370, 539 (1996) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, J.S.Greenberg, J.P.Greene, A.L.Hallin, Th.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.M.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.R.Young, J.E.Yurkon A Solenoidal Spectrometer for Positron-Electron Pairs Produced in Heavy-Ion Collisions RADIOACTIVITY 85Sr(EC); 113Sn(EC); 203Hg(β-); measured electron spectra; deduced apparatus response, efficiency. New solenoidal spectrometer. NUCLEAR REACTIONS 181Ta(238U, X), E=6.1 MeV/nucleon; measured γ-, positron energy spectra. New solenoidal spectrometer.
doi: 10.1016/0168-9002(95)00829-2
1995AH01 Nucl.Phys. A583, 247c (1995) I.Ahmad, S.M.Austin, B.B.Back, D.Bazin, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, J.S.Greenberg, A.L.Hallin, T.Happ, J.Last, N.Kaloskamis, E.Kashy, W.Kutschera, C.J.Lister, M.Liu, M.R.Maier, D.Mercer, A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.Young, J.E.Yurkon Positron Production in Heavy Ion Collisions: Current status of the problem NUCLEAR REACTIONS 181Ta(238U, X), E=5.9-6.3 MeV/nucleon; compiled, analyzed, reviewed electron, positron production data.
doi: 10.1016/0375-9474(94)00667-C
1995AH06 Phys.Rev.Lett. 75, 2658 (1995) I.Ahmad, S.M.Austin, B.B.Back, R.R.Betts, F.P.Calaprice, K.C.Chan, A.Chishti, P.Chowdhury, C.Conner, R.W.Dunford, J.D.Fox, S.J.Freedman, M.Freer, S.B.Gazes, A.L.Hallin, T.Happ, D.Henderson, N.I.Kaloskamis, E.Kashy, W.Kutschera, J.Last, C.J.Lister, M.Liu, M.R.Maier, D.J.Mercer, D.Mikolas, P.A.A.Perera, M.D.Rhein, D.E.Roa, J.P.Schiffer, T.A.Trainor, P.Wilt, J.S.Winfield, M.Wolanski, F.L.H.Wolfs, A.H.Wuosmaa, G.Xu, A.Young, J.E.Yurkon, and the APEX Collaboration Search for Narrow Sum-Energy Lines in Electron-Positron Pair Emission from Heavy-Ion Collisions Near the Coulomb Barrier NUCLEAR REACTIONS 181Ta(238U, X), E=5.95-6.3 MeV/nucleon; 232Th(238U, X), E=5.95 MeV/nucleon; measured pair emission sum spectra; deduced no sharp lines evidence, neutral particle isolated decay related features.
doi: 10.1103/PhysRevLett.75.2658
1995AL26 Yad.Fiz. 58, No 5, 799 (1995); Phys.Atomic Nuclei 58, 737 (1995) V.P.Alfimenkov, G.V.Valsky, A.M.Gagarsky, B.Geltenborg, I.S.Guseva, J.Last, G.A.Petrov, A.K.Petukhov, L.B.Pikelner, Yu.S.Pleva, V.E.Sokolov, V.I.Furman, K.Schreckenbach, O.A.Shcherbakov Interference Effects in the Angular Distributions of Fragments of Heavy-Nucleus Fission Induced by Thermal and Resonance Neutrons NUCLEAR REACTIONS 229Th, 239,241Pu, 233,235U, 241Am, 245Cm(polarized n, F), E=cold; 233,235U, 239Pu(polarized n, F), E=slow; analyzed P-odd, P-even asymmetry data following fission. Data from this article have been entered in the EXFOR database. For more information, access X4 dataset41174. 1995GL04 Nucl.Phys. A593, 125 (1995) Measurable Parameters of Neutron Decay RADIOACTIVITY 1n(β-); analyzed electron, proton asymmetries; deduced important phenomenological parameters. Statistical methods.
doi: 10.1016/0375-9474(95)00354-4
1994AL05 Nucl.Phys. A567, 541 (1994) A.Ya.Aleksandrovich, A.M.Gagarsky, I.A.Krasnoschokova, G.A.Petrov, V.I.Petrova, A.K.Petukhov, Yu.S.Pleva, P.Geltenbort, J.Last, K.Schreckenbach New Observation of Space-Parity Violation in Neutron-Induced Fission of 229Th, 241Pu and 241Am NUCLEAR REACTIONS 229Th, 233U, 237Np, 241Pu, 241Am(polarized n, F), E=cold; measured fission fragment σ(θ); deduced parity violating asymmetry coefficients.
doi: 10.1016/0375-9474(94)90023-X
1994GO02 Nucl.Phys. A567, 303 (1994) F.Gonnenwein, A.V.Belozerov, A.G.Beda, S.I.Burov, G.V.Danilyan, A.N.Martemyanov, V.S.Pavlov, V.A.Shchenev, L.N.Bondarenko, Yu.A.Mostovoi, P.Geltenbort, J.Last, K.Schreckenbach Parity Violation in Ternary Fission NUCLEAR REACTIONS 233U, 239Pu(polarized n, F), E=cold; measured correlation between neutron spin, fragment momentum for binary, ternary fission. 234U, 240Pu deduced ratio of parity-violating asymmetries for ternary relative to binary fission.
doi: 10.1016/0375-9474(94)90150-3
1993AB11 Phys.Lett. 316B, 26 (1993) H.Abele, G.Helm, U.Kania, C.Schmidt, J.Last, D.Dubbers On the Origin of the 17 keV Neutrino Signals, and a Loss-Free Measurement of the 35S β-Spectrum RADIOACTIVITY 35S(β-); measured β-spectra; deduced no 17 keV neutrino evidence. Virtually loss free β-spectroscopy method.
doi: 10.1016/0370-2693(93)90652-X
1993KA34 Nucl.Instrum.Methods Phys.Res. A330, 447 (1993) N.I.Kaloskamis, K.C.Chan, A.A.Chishti, J.S.Greenberg, C.J.Lister, S.J.Freedman, M.Wolanski, J.Last, B.Utts The Trigger Detector for APEX: An array of position-sensitive NaI(Tl) detectors for the imaging of positrons from heavy-ion collisions RADIOACTIVITY 68Ge(EC); measured γγ-coin. Position sensitive cylindrical NaI(Tl) detector.
doi: 10.1016/0168-9002(93)90574-2
1991BE37 Pisma Zh.Eksp.Teor.Fiz. 54, 136 (1991); JETP Lett.(USSR) 54, 132 (1991) A.V.Belozerov, A.G.Beda, S.I.Burov, G.V.Danilyan, A.N.Martemyanov, V.S.Pavlov, V.A.Shchenev, L.H.Bondarenko, Yu.A.Mostovoi, P.G.Geltenbort, J.Last, K.Schreckenbach, F.Gonnenwein Ratio of the P-Odd Asymmetry Coefficients in the Separation of Fragments in Double and Triple Fission of U-233 Nuclei by Polarized Neutrons NUCLEAR REACTIONS 233U(polarized n, F), E=reactor; measured fission fragment P-odd asymmetry coefficients; deduced double, triple fission channel equivalence.
1989DO17 Nucl.Instrum.Methods Phys.Res. A284, 123 (1989) J.Dohner, H.Abele, I.Reichert, H.Borel, D.Dubbers, S.J.Freedman, J.Last Measurement of Neutron-Decay Parameters with PERKEO RADIOACTIVITY 1n(β-); measured β-decay asymmetry T1/2; deduced g(A), g(V). Solenoidal electron spectrometer.
doi: 10.1016/0168-9002(89)90263-5
1988DO15 Phys.Rev. D38, 2722 (1988) J.Dohner, J.Last, M.Arnold, S.J.Freedom, D.Dubbers Pair Decay of the 2.2-MeV Excited State of the Deuteron: Limits on light-particle emission NUCLEAR REACTIONS 1H(n, γ), E=cold neutron; measured pair spectra features; deduced 2H level Γ(pair)/Γγ.
doi: 10.1103/PhysRevD.38.2722
1988KL01 Z.Phys. C37, 179 (1988) E.Klemt, P.Bopp, L.Hornig, J.Last, S.J.Freedman, D.Dubbers, O.Scharpf The Beta-Decay Asymmetry of the Neutron RADIOACTIVITY 1n(β-); measured β-decay asymmetry; deduced g(A)/g(V).
doi: 10.1007/BF01579905
1988LA04 Phys.Rev.Lett. 60, 995 (1988) J.Last, M.Arnold, J.Dohner, D.Dubbers, S.J.Freedman Pulsed-Beam Neutron-Lifetime Measurement RADIOACTIVITY 1n; measured T1/2; deduced (G(A)/G(V)).
doi: 10.1103/PhysRevLett.60.995
1986BO04 Phys.Rev.Lett. 56, 919 (1986); Erratum Phys.Rev. 57, 1192 (1986) P.Bopp, D.Dubbers, L.Hornig, E.Klemt, J.Last, H.Schutze, S.J.Freedman, O.Scharpf Beta-Decay Asymmetry of the Neutron and g(A)/g(V) RADIOACTIVITY 1n; measured β-asymmetry, Eβ, Iβ; deduced (g(A)/g(V)). Polarized neutron beam, long solenoidal β-spectrometer.
doi: 10.1103/PhysRevLett.56.919
1984BO28 J.Phys.(Paris), Colloq.C3, 21 (1984) P.Bopp, D.Dubbers, E.Klemt, J.Last, H.Schutze, W.Weibler, S.J.Freedman, O.Scharpf The β-Decay Asymmetry of the Free Neutron RADIOACTIVITY 1n(β-); measured β-decay asymmetry vs E; deduced (gp/g(A)). Polarized source, superconducting spectrometer.
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