NSR Query Results
Output year order : Descending NSR database version of April 26, 2024. Search: Author = J.G.Keller Found 24 matches. 1996BA17 Phys.Rev. C53, 1734 (1996) B.B.Back, P.B.Fernandez, B.G.Glagola, D.Henderson, S.Kaufman, J.G.Keller, S.J.Sanders, F.Videbaek, T.F.Wang, B.D.Wilkins Entrance-Channel Effects in Quasifission Reactions NUCLEAR REACTIONS 182W(32S, X), (32S, 32S), E=166-260 MeV; 166Er(48Ti, X), (48Ti, 48Ti), E=220-298 MeV; 154Sm(60Ni, X), (60Ni, 60Ni), E=269-421 MeV; measured σ(θ), deep-inelastic, fission like σ(θ) vs fragment mass; deduced complete fusion contribution to fission like σ, entrance channel dependence.
doi: 10.1103/PhysRevC.53.1734
1996NI02 Nucl.Phys. A598, 418 (1996) T.Nilsson, F.Humbert, W.Schwab, H.Simon, M.H.Smedberg, M.Zinser, Th.Blaich, M.J.G.Borge, L.V.Chulkov, Th.W.Elze, H.Emling, H.Geissel, K.Grimm, D.Guillemaud-Mueller, P.G.Hansen, R.Holzmann, H.Irnich, B.Jonson, J.G.Keller, H.Klingler, A.A.Korsheninnikov, J.V.Kratz, R.Kulessa, D.Lambrecht, Y.Leifels, A.Magel, M.Mohar, A.C.Mueller, G.Munzenberg, F.Nickel, G.Nyman, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, B.M.Sherrill, K.Stelzer, J.Stroth, O.Tengblad, W.Trautmann, E.Wajda, M.V.Zhukov, E.Zude 6He and Neutron Momentum Distributions from 8He in Nuclear Break-Up Reactions at 240 MeV/u NUCLEAR REACTIONS C(8He, X), E=240 MeV/nucleon; measured 6He, n-momentum distributions, invariant mass spectra; deduced two-neutron removal σ, reaction mechanism. Secondary 8He beam from 9Be(18O, X) reactions.
doi: 10.1016/0375-9474(95)00468-8
1995HU06 Phys.Lett. 347B, 198 (1995) F.Humbert, T.Nilsson, W.Schwab, M.Zinser, Th.Blaich, M.J.G.Borge, L.V.Chulkov, Th.W.Elze, H.Emling, B.Franzke, H.Freiesleben, H.Geissel, K.Grimm, D.Guillemaud-Mueller, P.G.Hansen, R.Holzmann, H.Irnich, L.Johannsen, B.Jonson, J.G.Keller, O.Klepper, H.Klingler, J.V.Kratz, R.Kulessa, D.Lambrecht, Y.Leifels, A.Magel, M.Mohar, A.C.Mueller, G.Munzenberg, P.Moller, F.Nickel, G.Nyman, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, B.M.Sherrill, H.Simon, K.Stelzer, J.Stroth, O.Tengblad, W.Trautmann, E.Wajda, E.Zude Longitudinal and Transverse Momentum Distributions of 9Li Fragments from Break-Up of 11Li NUCLEAR REACTIONS C, 27Al, Pb(11Li, X), E=280 MeV/nucleon; measured 9Li transverse longitudinal momentum distributions following 11Li breakup, two-neutron removal σ.
doi: 10.1016/0370-2693(95)00072-S
1995NI04 Nucl.Phys. A583, 795c (1995) T.Nilsson, F.Humbert, W.Schwab, M.Zinser, Th.Blaich, M.J.G.Borge, L.V.Chulkov, H.Eickhoff, Th.W.Elze, H.Emling, B.Franzke, H.Freiesleben, H.Geissel, K.Grimm, D.Guillemaud-Mueller, P.G.Hansen, R.Holzmann, H.Irnich, L.Johannsen, B.Jonson, J.G.Keller, O.Klepper, H.Klingler, J.V.Kratz, R.Kulessa, D.Lambrecht, Y.Leifels, A.Magel, M.Mohar, E.F.Moore, A.C.Mueller, G.Munzenberg, P.Moller, F.Nickel, G.Nyman, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, B.M.Sherrill, H.Simon, K.Stelzer, J.Stroth, O.Tengblad, W.Trautmann, E.Wajda, E.Zude, and the S034 Collaboration Dissociation of 8He into 6He + n + X at 240 MeV/u NUCLEAR REACTIONS C, Pb(8He, X), E=240 MeV/nucleon; measured (6He+n) projectile breakup, product transverse momentum distribution.
doi: 10.1016/0375-9474(94)00760-K
1995ZI03 Phys.Rev.Lett. 75, 1719 (1995) M.Zinser, F.Humbert, T.Nilsson, W.Schwab, Th.Blaich, M.J.G.Borge, L.V.Chulkov, H.Eickhoff, Th.W.Elze, H.Emling, B.Franzke, H.Freiesleben, H.Geissel, K.Grimm, D.Guillemaud-Mueller, P.G.Hansen, R.Holzmann, H.Irnich, B.Jonson, J.G.Keller, O.Klepper, H.Klingler, J.V.Kratz, R.Kulessa, D.Lambrecht, Y.Leifels, A.Magel, M.Mohar, A.C.Mueller, G.Munzenberg, F.Nickel, G.Nyman, A.Richter, K.Riisager, C.Scheidenberger, G.Schrieder, B.M.Sherrill, H.Simon, K.Stelzer, J.Stroth, O.Tengblad, W.Trautmann, E.Wajda, E.Zude Study of the Unstable Nucleus 10Li in Stripping Reactions of the Radioactive Projectiles 11Be and 11Li NUCLEAR REACTIONS C(11Li, X), E=280 MeV/nucleon; (11Be, X), E=460 MeV/nucleon; measured neutron radial momentum distributions in coincidence with fragment following projectile breakup. 10Li deduced possible level. 11Li deduced neutron halo related features.
doi: 10.1103/PhysRevLett.75.1719
1994LA28 Z.Phys. A350, 115 (1994) D.Lambrecht, T.Blaich, T.W.Elze, H.Emling, H.Freiesleben, K.Grimm, W.Henning, R.Holzmann, J.G.Keller, H.Klingler, J.V.Kratz, R.Kulessa, S.Lange, Y.Leifels, E.Lubkiewicz, E.F.Moore, W.Prokopowicz, R.Schmidt, C.Schutter, H.Spies, K.Stelzer, J.Stroth, E.Wajda, W.Walus, M.Zinser, E.Zude, and the FOPI-Collaboration Energy Dependence of Collective Flow of Neutrons and Protons in 197Au + 197Au Collisions NUCLEAR REACTIONS 197Au(197Au, X), E=400-800 MeV/nucleon; measured mid-rapidity azimuthal distributions for neutrons, protons; deduced collective nucleon flow energy dependence.
doi: 10.1007/BF01290679
1993LE12 Phys.Rev.Lett. 71, 963 (1993) Y.Leifels, Th.Blaich, Th.W.Elze, H.Emling, H.Freiesleben, K.Grimm, W.Henning, R.Holzmann, J.G.Keller, H.Klingler, J.V.Kratz, R.Kulessa, D.Lambrecht, S.Lange, E.Lubkiewicz, E.F.Moore, W.Prokopowicz, R.Schmidt, C.Schutter, H.Spies, K.Stelzer, J.Stroth, E.Wajda, W.Walus, M.Zinser, E.Zude, and the FOPI Collaboration Exclusive Studies of Neutron and Charged Particle Emission in Collisions of 197Au + 197Au at 400 MeV/Nucleon NUCLEAR REACTIONS 197Au(197Au, X), E=400 MeV/nucleon; measured σ(φn); deduced neutron squeezeout evidence.
doi: 10.1103/PhysRevLett.71.963
1993SC07 Phys.Rev.Lett. 70, 1767 (1993) R.Schmidt, Th.Blaich, Th.W.Elze, H.Emling, H.Freiesleben, K.Grimm, W.Henning, R.Holzmann, J.G.Keller, H.Klingler, R.Kulessa, J.V.Kratz, D.Lambrecht, J.S.Lange, Y.Leifels, E.Lubkiewicz, E.F.Moore, E.Wajda, W.Prokopowicz, Ch.Schutter, H.Spies, K.Stelzer, J.Stroth, W.Walus, H.J.Wollersheim, M.Zinser, E.Zude Electromagnetic Excitation of the Double Giant Dipole Resonance in 136Xe NUCLEAR REACTIONS Pb(136Xe, 136Xe'), E=700 MeV/nucleon; measured projectile neutron decay, response to electromagnetic excitation; deduced isovector GDR excitation σ for projectile. 136Xe deduced double isovector GDR energy, width.
doi: 10.1103/PhysRevLett.70.1767
1989MU09 Z.Phys. A333, 163 (1989) G.Munzenberg, P.Armbruster, S.Hofmann, F.P.Hessberger, H.Folger, J.G.Keller, V.Ninov, K.Poppensieker, A.B.Quint, W.Reisdorf, K.-H.Schmidt, J.R.H.Schneider, H.-J.Schott, K.Summerer, I.Zychor, M.E.Leino, D.Ackermann, U.Gollerthan, E.Hanelt, W.Morawek, D.Vermeulen, Y.Fujita, T.Schwab Element 107 NUCLEAR REACTIONS 209Bi(54Cr, xn), E=4.87-5.07 MeV/nucleon; measured α-spectra; deduced evidence for 261,262,262mBh, formation σ, reaction σ(E). RADIOACTIVITY 261,262,262mBh(α) [from 209Bi(54Cr, xn), E=4.87-5.07 MeV/nucleon]; measured α-spectra, αα-correlations, T1/2; deduced no SF-decay evidence.
1987KE04 Phys.Rev. C36, 1364 (1987) J.G.Keller, B.B.Back, B.G.Glagola, D.Henderson, S.B.Kaufman, S.J.Sanders, R.H.Siemssen, F.Videbaek, B.D.Wilkins, A.Worsham Distribution of Reaction Strength in 32S + 182W Collisions NUCLEAR REACTIONS 182W(32S, 32S), (32S, X), E=166, 177, 222, 260 MeV; measured σ(θ); deduced reaction, deep inelastic, fission σ(E), fission product mass, reaction strength distributions.
doi: 10.1103/PhysRevC.36.1364
1987SA52 Phys.Rev.Lett. 59, 2856 (1987) S.J.Sanders, D.G.Kovar, B.B.Back, C.Beck, B.K.Dichter, D.Henderson, R.V.F.Janssens, J.G.Keller, S.Kaufman, T.-F.Wang, B.Wilkins, F.Videbaek Asymmetric Fission of 56Ni NUCLEAR REACTIONS, ICPND 24Mg(32S, X), E=141.8 MeV; measured mass, velocity spectra, binary reaction σ(A); deduced fission reaction yield characteristics. 56Ni deduced fission mechanism.
doi: 10.1103/PhysRevLett.59.2856
1986KE03 Nucl.Phys. A452, 173 (1986) J.G.Keller, K.-H.Schmidt, F.P.Hessberger, G.Munzenberg, W.Reisdorf, H.-G.Clerc, C.-C.Sahm Cold Fusion in Symmetric 90Zr-Induced Reactions RADIOACTIVITY 172,173,174,175,176,177Ir, 175Pt, 178,179,180Au, 181Hg, 182Tl, 181,182,183Pb(α); measured E(α); deduced α-branching ratios. NUCLEAR REACTIONS 89Y, 90,92,96Zr, 94Mo(90Zr, xn), E=321-390 MeV; measured evaporation residue σ above, around, below the fusion barriers; deduced fusion probabilities, barrier distributions. 179Au, 180,182Hg, 184Pb deduced γ-transitions. Enriched targets, velocity filter, parallel-plate avalanche counter, surface-barrier detectors.
doi: 10.1016/0375-9474(86)90514-2
1986SC07 Phys.Lett. 168B, 39 (1986) K.-H.Schmidt, R.S.Simon, J.-G.Keller, F.P.Hessberger, G.Munzenberg, B.Quint, H.-G.Clerc, W.Schwab, U.Gollerthan, C.-C.Sahm Gamma-Spectroscopic Investigations in the Radiative Fusion Reaction 90Zr + 90Zr NUCLEAR REACTIONS 90Zr(90Zr, X), E=358 MeV; measured radiative fusion Eγ, Iγ; deduced reaction mechanism. 180Hg deduced statistical deexcitation, E1 transition strength.
doi: 10.1016/0370-2693(86)91456-5
1985HO29 Nucl.Phys. A447, 335c (1985) S.Hofmann, P.Armbruster, G.Munzenberg, W.Reisdorf, K.-H.Schmidt, H.G.Burkhard, F.P.Hessberger, H.-J.Schott, Y.K.Agarwal, G.Berthes, U.Gollerthan, H.Folger, R.Hingmann, J.G.Keller, M.E.Leino, P.Lemmertz, M.Montoya, K.Poppensieker, B.Quint, I.Zychor The Influence of the Surprising Decay Properties of Element 108 on Search Experiments for New Elements RADIOACTIVITY 260Sg(α) [from 208Pb(54Cr, 2n), E=4.92 MeV/nucleon]; measured T1/2; deduced SF(T1/2) limit, branching ratio. 256Rf(SF) [from 260Sg(α-decay)]; measured T1/2. 260Sg, 256Rf deduced mass excess.
doi: 10.1016/0375-9474(86)90615-9
1985SA21 Nucl.Phys. A441, 316 (1985) C.-C.Sahm, H.-G.Clerc, K.-H.Schmidt, W.Residorf, P.Armbruster, F.P.Hessberger, J.G.Keller, G.Munzenberg, D.Vermeulen Fusion Probability of Symmetric Heavy, Nuclear Systems Determined from Evaporation-Residue Cross Sections NUCLEAR REACTIONS 172,173,176Yb(48Ca, X), E=196-225 MeV; 121,123Sb(86Kr, X), E=337-389 MeV; 90,92,94,96Zr(124Sn, X), E=472-569 MeV; measured evaporation residue σ; deduced fusion probabilities. Enriched targets, velocity filter, secondary electron detector, surface-barrier detectors, delayed coincidences.
doi: 10.1016/0375-9474(85)90036-3
1984CL03 Nucl.Phys. A419, 571 (1984) H.-G.Clerc, J.G.Keller, C.-C.Sahm, K.-H.Schmidt, H.Schulte, D.Vermeulen Fusion-Fission and Neutron-Evaporation-Residue Cross Sections in 40Ar- and 50Ti- Induced Fusion Reactions NUCLEAR REACTIONS 165Ho, 169Tm, 174Yb, 175Lu, 176,177,178,179,180Hf, 181Ta, 208Pb(40Ar, X), E=170-208 MeV; 208Pb, 209Bi(50Ti, X), E=235-260 MeV; measured fusion σ(E), neutron evaporation residue σ(E); deduced fusion barriers, fusion radii. Enriched targets.
doi: 10.1016/0375-9474(84)90634-1
1984KE03 Phys.Rev. C29, 1569 (1984) J.G.Keller, K.-H.Schmidt, H.Stelzer, W.Reisdorf, Y.K.Agarwal, F.P.Hessberger, G.Munzenberg, H.-G.Clerc, C.-C.Sahm Fusion of the System 90Zr + 90Zr NUCLEAR REACTIONS, ICPND 90Zr(90Zr, X), E(cm) ≈ 172-195 MeV; measured compound residue σ(E); deduced fusion barrier, fluctuations.
doi: 10.1103/PhysRevC.29.1569
1984SA24 Z.Phys. A319, 113 (1984) C.-C.Sahm, H.-G.Clerc, K.-H.Schmidt, W.Reisdorf, P.Armbruster, F.P.Hessberger, J.G.Keller, G.Munzenberg, D.Vermeulen Hindrance of Fusion in Central Collisions of Heavy, Symmetric Nuclear Systems NUCLEAR REACTIONS 92,94,96Zr(124Sn, xn), (86Kr, xn), E not given; measured evaporation σ(E), fusion probability vs residual excitation; deduced fusion hindrance in symmetric system central collisions.
doi: 10.1007/BF01415623
1984SC07 Z.Phys. A315, 159 (1984) K.-H.Schmidt, J.G.Keller, D.Vermeulen Temperature-Induced Deformation - A Possible Mechanism for Washing Out Spherical Shell Effects in the Nuclear Level Density NUCLEAR STRUCTURE 216Th, 252Fm; calculated level density; deduced shell effect washout. Shell, rotational motion interplay.
doi: 10.1007/BF01419374
1984VE09 Z.Phys. A318, 157 (1984) D.Vermeulen, H.-G.Clerc, C.-C.Sahm, K.-H.Schmidt, J.G.Keller, G.Munzenberg, W.Reisdorf Cross Sections for Evaporation Residue Production near the N = 126 Shell Closure NUCLEAR REACTIONS 165Ho, 169Tm, 175Lu, 171,174Yb, 181Ta, 177,178,179,180,176Hf(40Ar, X), E=192 MeV; measured evaporation residue production σ, fragment α-decay, Eα, Iα; deduced low shell stabilizing influence, superheavy production optimum conditions.
doi: 10.1007/BF01413464
1983HI08 Nucl.Phys. A404, 51 (1983) R.Hingmann, H.-G.Clerc, C.-C.Sahm, D.Vermeulen, K.-H.Schmidt, J.G.Keller Evidence for an Isomeric State in 216Th NUCLEAR REACTIONS 180Hf(40Ar, 4n), (40Ar, 5n), E=165-200 MeV; measured residuals production σ(E). 180Hf(40Ar, X), E=180 MeV; measured Eα, Iα from evaporation residue decay; deduced evidence for 216mTh. RADIOACTIVITY 216mTh [from 178,179,180Hf(40Ar, xn), E=165-200 MeV]; measured Eα, T1/2; deduced Iα, Iγ. Comparison with 217mPa decay.
doi: 10.1016/0375-9474(83)90413-X
1983HI12 Z.Phys. A313, 141 (1983) R.Hingmann, H.-G.Clerc, C.-C.Sahm, D.Vermeulen, K.-H.Schmidt, J.G.Keller Identification of 222U and 221Pa by α-Correlation Chains RADIOACTIVITY 222U(α) [from W(40Ar, 4n), E=4.5 MeV/nucleon]; 221Pa(α) [from 186W(40Ar, 4np), E=4.72 MeV/nucleon]; measured αα-correlation; deduced T1/2. NUCLEAR REACTIONS W(40Ar, 4n), E=4.5 MeV/nucleon; 186W(40Ar, 4np), E=4.72 MeV/nucleon; measured αα-correlation; deduced evidence for 222U, 221Pa.
doi: 10.1007/BF02115854
1983KE01 Z.Phys. A311, 243 (1983) J.G.Keller, H.-G.Clerc, K.-H.Schmidt, Y.K.Agarwal, F.P.Hessberger, R.Hingmann, G.Munzenberg, W.Reisdorf, C.C.Sahm Observation of Radiative Capture in the Reaction 90Zr + 90Zr NUCLEAR REACTIONS 90Zr(90Zr, X), E=351, 360 MeV; measured Eα, Iα following evaporation residue decay; deduced heavy system radiative capture.
doi: 10.1007/BF01415109
1982HI14 Z.Phys. A309, 27 (1982) R.Hingmann, H.-G.Clerc, C.-C.Sahm, D.Vermeulen, K.-H.Schmidt, J.G.Keller Alpha Decay Properties of 199Rn and 199mRn NUCLEAR REACTIONS 86Kr(116Sn, X), (116Sn, 2n), (116Sn, 3n), E=345-385 MeV; measured residual production σ vs E, (evaporation residue)(α)(t), αα(t). 199m,199Rn levels deduced α-decay T1/2, decay characteristics, possible J, π. Correlation analysis, shell model.
doi: 10.1007/BF01420147
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