NSR Query Results
Output year order : Descending NSR database version of March 21, 2024. Search: Author = U.E.Berg Found 35 matches. 2012DE03 Phys.Rev. C 85, 024619 (2012) R.P.DeVito, D.T.Khoa, S.M.Austin, U.E.P.Berg, B.M.Loc Neutron scattering from 208Pb at 30.4 and 40.0 MeV and isospin dependence of the nucleon optical potential NUCLEAR REACTIONS 208Pb(n, n), E=30.4, 40.0 MeV; measured neutron spectra using time-of-flight system at NSCL, MSU, σ(E, θ); comparison with σ(E, θ) data for 208Pb(p, p), E=45.0, 47.3, 49.4, 54.2 MeV, and optical model calculations; deduced optical model parameters using the Woods-Saxon geometry given by the CH89 systematics. Diffractive structure in σ(θ) distributions. 208Pb(p, n), E=45 MeV; analyzed σ(θ); deduced isovector term (isospin impurity) of the optical potential. Relevance to data for IAS.
doi: 10.1103/PhysRevC.85.024619
1989PI05 Nucl.Phys. A492, 411 (1989) H.H.Pitz, U.E.P.Berg, R.D.Heil, U.Kneissl, R.Stock, C.Wesselborg, P.von Brentano Systematic Study of Low-Lying Dipole Excitations in 156,158,160Gd by Photon Scattering NUCLEAR REACTIONS 156,158,160Gd(γ, γ'), E=3.5-4.1 MeV bremsstrahlung; measured Eγ, Iγ. 156,158,160Gd deduced levels, J, Γ0, reduced transition probabilities.
doi: 10.1016/0375-9474(89)90405-3
1988HE02 Nucl.Phys. A476, 39 (1988) R.D.Heil, H.H.Pitz, U.E.P.Berg, U.Kneissl, K.D.Hummel, G.Kilgus, D.Bohle, A.Richter, C.Wesselborg, P.von Brentano Observation of Orbital Magnetic Dipole Strength in the Actinide Nuclei 232Th and 238U NUCLEAR REACTIONS 232Th, 238U(e, e'), E=20.2-55.9 MeV; measured σ(E(e-)), θ=165°. 232Th, 238U(γ, γ'), E=2.9-4.1 MeV bremsstrahlung; measured Eγ, Iγ. 232Th, 238U deduced levels, J, π, B(M1), transition form factors.
doi: 10.1016/0375-9474(88)90371-5
1988WE10 Phys.Lett. 207B, 22 (1988) C.Wesselborg, P.Von Brentano, K.O.Zell, R.D.Heil, H.H.Pitz, U.E.P.Berg, U.Kneissl, S.Lindenstruth, U.Seemann, R.Stock Photoexcitation of Dipole Modes in 160,162,164Dy NUCLEAR REACTIONS 160,162,164Dy(γ, γ'), E=2.2-3.2 MeV bremsstrahlung; measured γ-spectra. 160,162,164Dy deduced levels, J, π, B(M1), width parameters. Nuclear resonance fluorescence.
doi: 10.1016/0370-2693(88)90878-7
1986BO25 Nucl.Phys. A458, 205 (1986) D.Bohle, A.Richter, U.E.P.Berg, J.Drexler, R.D.Heil, U.Kneissl, H.Metzger, R.Stock, B.Fischer, H.Hollick, D.Kollewe Distribution of Orbital Magnetic Dipole Strength in 156Gd NUCLEAR REACTIONS 156Gd(e, e'), E=24.6-56 MeV; measured σ(E(e'), θ=165°). 156Gd(γ, γ'), E=2.8-3.4 MeV; measured Eγ, Iγ. 156Gd deduced levels, J, π, B(M1), transition form factors.
doi: 10.1016/0375-9474(86)90352-0
1986RA01 Phys.Rev.Lett. 56, 568 (1986) R.Ratzek, U.E.P.Berg, C.Blasing, A.Jung, S.Schennach, R.Stock, F.-J.Urban, H.Wickert Electric and Magnetic Dipole Transitions to Bound States in 206Pb NUCLEAR REACTIONS 206Pb(polarized γ, γ'), E=7 MeV bremsstrahlung; measured Iγ(θ), asymmetry. 206Pb deduced levels, J, π, γ-multipolarity, B(λ).
doi: 10.1103/PhysRevLett.56.568
1986WI01 Phys.Rev. C33, 1 (1986) J.S.Winfield, S.M.Austin, R.P.DeVito, U.E.P.Berg, Ziping Chen, W.Sterrenburg Measurements of Elastic Neutron Scattering from 12C and 32S at 30.3 and 40.3 MeV: Limits on charge symmetry breaking in the nuclear mean field NUCLEAR REACTIONS 12C, 32S(n, n), E=30.3, 40.3 MeV; measured σ(θ); 12C, 28Si, 32S, 40Ca(n, n), (p, p), E not given; analyzed σ(θ); deduced optical model parameters, real volume integrals. CCBA analysis.
doi: 10.1103/PhysRevC.33.1
1986WI08 Phys.Rev. C34, 835 (1986) H.Wickert, K.Ackermann, K.Bangert, U.E.P.Berg, C.Blasing, W.Naatz, A.Ruckelshausen, S.Schennach, R.Stock Parities of Bound Dipole States in 40Ar NUCLEAR REACTIONS 40Ar(polarized γ, γ), E=17 MeV bremsstrahlung; measured Eγ, asymmetry(θ=90°). 40Ar deduced levels, J, π, γ-multipolarity, B(λ). Nuclear resonance fluorescence technique.
doi: 10.1103/PhysRevC.34.835
1984AN12 Phys.Lett. 141B, 309 (1984) I.Anthony, D.Branford, A.G.Flowers, J.C.McGeorge, M.R.Sene, A.C.Shotter, P.J.Thorley, C.H.Zimmerman, J.Friedrich, N.Voegler, K.Bangert, U.E.P.Berg Determination of the Total Photo-Absorption Cross Section of 197Au from (γ, xn) Reaction Cross Sections NUCLEAR REACTIONS 197Au(γ, n), (γ, 3n), (γ, 5n), (γ, 7n), E=60-340 MeV bremsstrahlung; measured yield per electron; deduced photon absorption σ, E1 sum rule enhancement factor.
doi: 10.1016/0370-2693(84)90251-X
1984BE26 Phys.Lett. 140B, 191 (1984) U.E.P.Berg, K.Ackermann, K.Bangert, C.Blasing, W.Naatz, R.Stock, K.Wienhard, M.K.Brussel, T.E.Chapuran, B.H.Wildenthal Bound State M1 Transitions in sd-Shell Nuclei NUCLEAR REACTIONS 20,22Ne, 24Mg, 28,30Si, 32,34S(γ, γ'), E=65 MeV bremsstrahlung; 26Mg(γ, γ'), E not given; measured Eγ, Iγ. 22Ne, 26Mg, 28,30Si, 32,34S(polarized γ, γ), E=22 MeV bremsstrahlung; measured γ asymmetry, polarization effect. 20,22Ne, 24,26Mg, 28,30Si, 32,34S levels deduced B(M1), (Γ0/Γ), Γ0. Nuclear resonance fluorescence technique, linearly polarized γ-beam. Shell model comparison.
doi: 10.1016/0370-2693(84)90918-3
1984BE31 J.Phys.(Paris), Colloq.C4, 359 (1984); See 1984Be66 Model-Independent Determination of M1 States by Nuclear Resonance Fluorescene
1984BE54 Phys.Lett. 149B, 59 (1984) U.E.P.Berg, C.Blasing, J.Drexler, R.D.Heil, U.Kneissl, W.Naatz, R.Ratzek, S.Schennach, R.Stock, T.Weber, H.Wickert, B.Fischer, H.Hollick, D.Kollewe Photoexcitation of Low-Lying Collective States in 156,158,160Gd NUCLEAR REACTIONS 156,158,160Gd(γ, γ'), E=2.8-3.4 MeV bremsstrahlung; measured Eγ, Iγ. 156,158,160Gd levels deduced Γγ, B(M1), transition collectivity.
doi: 10.1016/0370-2693(84)91551-X
1984BE66 J.Phys.(Paris), Colloq.C-4, 359 (1984) Model-Independent Determination of M1 States by Nuclear Resonance Fluorescence NUCLEAR REACTIONS 60Ni, 90Zr, 208Pb(polarized γ, γ), E ≤ 17 MeV; measured σ(Eγ), asymmetries. 26Mg(γ, γ'), E=14 MeV; measured σ(Eγ'). 26Mg transition deduced B(M1). Ge(Li) detectors.
1983BE19 Phys.Rev. C27, 2981 (1983) U.E.P.Berg, K.Ackermann, K.Bangert, R.Stock, K.Wienhard 11262 keV 1+ State in 20Ne NUCLEAR REACTIONS 20Ne(γ, γ'), E < 18 MeV bremsstrahlung; measured Eγ, Iγ. 20Ne deduced level, relative γ-branching. Natural Ne target.
doi: 10.1103/PhysRevC.27.2981
1983DE44 Phys.Rev. C28, 2530 (1983) R.P.DeVito, S.M.Austin, U.E.P.Berg, R.De Leo, W.A.Sterrenburg Imaginary Part of the Coulomb Correction in Nucleon Scattering from 28Si NUCLEAR REACTIONS 28Si(p, p), (n, n), E=14-40 MeV; measured σ(θ); deduced optical model parameters.
doi: 10.1103/PhysRevC.28.2530
1983DE45 Nucl.Instrum.Methods 215, 423 (1983) R.P.Devito, S.M.Austin, U.E.P.Berg, W.Sterrenburg, L.E.Young Techniques for Measuring Neutron Scattering Cross Sections with a Beam Swinger NUCLEAR REACTIONS Si(n, n), E=40 MeV; measured σ(En). 208Pb(n, n), E=30.3 MeV; measured σ(θ). Beam swinger based tof system.
doi: 10.1016/0167-5087(83)90473-8
1982BA03 Nucl.Phys. A376, 15 (1982) K.Bangert, U.E.P.Berg, G.Junghans, R.Stock, K.Wienhard Charged Photoparticles from the 18O Giant Resonances NUCLEAR REACTIONS 18O(γ, p), (γ, d), (γ, t), (γ, α), E=24, 32 MeV bremsstrahlung; measured σ(Ep), σ(Ed), σ(Et), σ(Eα); deduced σ(Eγ, θ) following t, α emission. 18O deduced giant resonance decay characteristics.
doi: 10.1016/0375-9474(82)90530-9
1982WI06 Phys.Rev.Lett. 49, 18 (1982) K.Wienhard, K.Ackermann, K.Bangert, U.E.P.Berg, C.Blasing, W.Naatz, A.Ruckelshausen, D.Ruck, R.K.M.Schneider, R.Stock Parity of Bound Dipole States in 208Pb NUCLEAR REACTIONS 208Pb(polarized γ, γ), E=10 MeV bremsstrahlung; measured Eγ, Iγ, asymmetry. 208Pb deduced level, J, π, B(M1), Γ02/Γ. Linearly polarized beam.
doi: 10.1103/PhysRevLett.49.18
1981AC02 Nucl.Phys. A372, 1 (1981) K.Ackermann, K.Bangert, U.E.P.Berg, G.Junghans, R.K.M.Schneider, R.Stock, K.Wienhard Ground State Dipole Transitions in 58Ni NUCLEAR REACTIONS 58Ni, 208Pb(γ, γ), E < 10 MeV; measured σ(θ). 58Ni deduced levels, J, π, Γγ, E1, M1 transition strength. 208Pb levels deduced Γγ. Enriched targets, nuclear resonance fluorescence technique.
doi: 10.1016/0375-9474(81)90082-8
1981BE32 Phys.Lett. 103B, 301 (1981) U.E.P.Berg, D.Ruck, K.Ackermann, K.Bangert, C.Blasing, K.Kobras, W.Naatz, R.K.M.Schneider, R.Stock, K.Wienhard Parities of Dipole Ground-State Transitions in 52Cr NUCLEAR REACTIONS 52Cr(polarized γ, γ), E=7-9 MeV bremsstrahlung; measured Eγ, Iγ, asymmetry. 52Cr deduced strong E1 transitions, B(M1) limit. Nuclear resonance fluorescence technique.
doi: 10.1016/0370-2693(81)90228-8
1981DE21 Phys.Rev.Lett. 47, 628 (1981) R.P.DeVito, S.M.Austin, W.Sterrenburg, U.E.P.Berg Limit on Charge Symmetry Breaking in the Optical Model and the Coulomb-Energy Anomaly NUCLEAR REACTIONS 40Ca(n, n), E=30.3, 40 MeV; measured σ(θ); deduced optical potentials, charge symmetry breaking limit.
doi: 10.1103/PhysRevLett.47.628
1981WI09 Phys.Rev. C24, 1363 (1981) K.Wienhard, R.K.M.Schneider, K.Ackermann, K.Bangert, U.E.P.Berg, R.Stock 16O(γ, p)15N Reaction with Linearly Polarized Photons NUCLEAR REACTIONS 16O(polarized γ, p), E=15-25 MeV bremsstrahlung; measured σ(Ep), analyzing power vs θ. 16O levels deduced π, proton decay amplitudes.
doi: 10.1103/PhysRevC.24.1363
1981WI12 Z.Phys. A302, 185 (1981) K.Wienhard, C.Blasing, K.Ackermann, K.Bangert, U.E.P.Berg, K.Kobras, W.Naatz, D.Ruck, R.K.M.Schneider, R.Stock Parities of Strong Dipole Ground State Transitions in 88Sr NUCLEAR REACTIONS 88Sr(polarized γ, γ), E=16 MeV bremsstrahlung; measured asymmetry. 88Sr levels deduced π. Nuclear resonance fluorescence technique, enriched targets.
doi: 10.1007/BF01413049
1980BE23 Phys.Rev.Lett. 45, 11 (1980) U.E.P.Berg, S.M.Austin, R.DeVito, A.I.Galonsky, W.A.Sterrenburg Comparison of 24,25,26Mg(p, n)24,25,26Al Cross Sections with Giant M1 Strength NUCLEAR REACTIONS 24,25,26Mg(p, n), E=35 MeV; measured σ(θ). 24,25,26Al deduced large spin-isospin-flip transitions, analog states.
doi: 10.1103/PhysRevLett.45.11
1980ST08 Phys.Lett. 91B, 337 (1980) W.A.Sterrenburg, S.M.Austin, U.E.P.Berg, R.DeVito The 26Mg(p, n)26Al Reaction and the Energy Dependence of the Spin-Isospin Effective Interaction NUCLEAR REACTIONS 26Mg(p, n), E=24.6, 35, 45 MeV; measured σ(En, θ); deduced energy dependence of spin-isospin effective interaction. DWBA with, without knockon exchange amplitude, shell model S.
doi: 10.1016/0370-2693(80)90990-9
1979BE10 Nucl.Phys. A318, 453 (1979) Nuclear Resonance Fluorescence in 22Ne NUCLEAR REACTIONS 22Ne(γ, γ), E < 18 MeV; measured Eγ, σ(γ, γ). 22Ne deduced T1/2, Γγ0, B(M1) values. Enriched target.
doi: 10.1016/0375-9474(79)90659-6
1979JU02 Z.Phys. A291, 353 (1979) G.Junghans, K.Bangert, U.E.P.Berg, R.Stock, K.Wienhard The Photodisintegration of 6Li and 7Li NUCLEAR REACTIONS 6Li(γ, p), (γ, d), (γ, t), (γ, α), E(max)=30, 35 MeV; 7Li(γ, p), (γ, d), (γ, t), (γ, α), E(max)=28, 40, 50 MeV from bremsstrahlung; measured σ(θ). 7Li(γ, pd), (γ, αd), (γ, dt), (γ, d3He), (γ, pt), (γ, αp), E(max)=40 MeV; measured pd-, αd-, dt-, d3He-, pt-, αp-coin; deduced reaction mechanism.
doi: 10.1007/BF01408386
1978BE46 Nucl.Phys. A306, 178 (1978) U.E.P.Berg, K.Bangert, G.Junghans, R.Stock, K.Wienhard Lifetimes of Highly Excited States in 34S from Nuclear Resonance Fluorescence NUCLEAR REACTIONS 34S(γ, γ), E < 18 MeV; measured Eγ, σ(γ, γ). 34S deduced mean lives, Γγ0, B(M1) values. Enriched target.
doi: 10.1016/0375-9474(78)90321-4
1978GE14 Phys.Rev.Lett. 41, 1778 (1978) C.K.Gelbke, T.Awes, U.E.P.Berg, J.Barrette, M.J.LeVine, P.Braun-Munzinger Comparison of Heavy-Ion-Induced α Transfer and Backward-Angle Elastic Scattering NUCLEAR REACTIONS 28Si(16O, 12C), E(cm)=20-40 MeV; measured σ(E, θ); 28Si(16O, 16O), 32S(12C, 12C), E(cm)=26 MeV; measured σ(θ); deduced that partial waves contributing to forward α-transfer differ from those of backward-angle transfer, elastic scattering. Regge-pole, modified Strutinsky parameterization.
doi: 10.1103/PhysRevLett.41.1778
1978SC25 Phys.Lett. 79B, 30 (1978) S.D.Schery, S.M.Austin, A.Galonsky, L.E.Young, U.E.P.Berg Cross Sections for the Quasielastic 112,116,124Sn(p, n) and 58Ni(p, n) Reactions: A Test of the Forward Scattering Amplitude Approximation NUCLEAR REACTIONS 112,116,124Sn(p, n), E=35.3 MeV; measured relative σ(θ) for quasielastic scattering. Isotopically mixed targets. 58Ni(p, n), E=32 MeV; measured σ(θ). DWBA analysis with complex isospin potential in FSA approximation; deduced importance of finite-range correction.
doi: 10.1016/0370-2693(78)90428-8
1977WI03 Nucl.Phys. A280, 109 (1977) K.Wienhard, K.Bangert, U.E.P.Berg, G.Junghans, R.Stock, H.Wolf Angular Distributions of Protons from the 26Mg(γ, p) Reaction between E(x) = 16 and 23 MeV NUCLEAR REACTIONS 26Mg(γ, p), E=16-23 MeV; measured σ(γ, p, θ). Enriched target.
doi: 10.1016/0375-9474(77)90297-4
1976BA14 Nucl.Phys. A261, 149 (1976) K.Bangert, U.E.P.Berg, G.Junghans, R.Stock, K.Wienhard, H.Wolf A Comparative Study of the Electric Giant Dipole Resonance of 24-26Mg NUCLEAR REACTIONS 24,25Mg(γ, p), (γ, α), 25Mg(γ, d), 24,25,26Mg(γ, γ'), E < 30 MeV; measured particle spectra, σ(E, Ep), σ(E, Eα), σ(E, Ed). 24,25,26Mg GDR deduced particle-hole, isospin configurations. Enriched targets.
doi: 10.1016/0375-9474(76)90047-6
1976BA41 Z.Phys. A278, 295 (1976) K.Bangert, U.E.P.Berg, K.Wienhard, H.Wolf The Decay of the 18O Giant Dipole Resonance to Excited Residual Nuclear States NUCLEAR REACTIONS 18O(γ, X), E=23.5, 28 MeV bremsstrahlung; measured prompt γ spectrum. 18O GDR deduced decay to levels in 17N, 17,16O, 14C.
doi: 10.1007/BF01409182
1975BE14 Phys.Rev. C11, 1851 (1975) U.E.P.Berg, K.Wienhard, H.Wolf Resonance Fluorescence of Giant Magnetic Dipole States in 24Mg NUCLEAR REACTIONS 24Mg(γ, γ), E < 23.5 MeV bremsstrahlung; measured Eγ, Iγ. 24Mg deduced levels, level-width, γ-branching.
doi: 10.1103/PhysRevC.11.1851
1974WO08 Nucl.Phys. A234, 365 (1974) H.Wolf, R.Stock, U.E.P.Berg, K.Wienhard Charged Particles from the Giant Dipole Resonance of 26Mg NUCLEAR REACTIONS 26Mg(γ, p), (γ, α), E < 23.5 MeV; measured σ(E, Ep), σ(E, Eα); deduced total σ. 26Mg GDR deduced isospin effects.
doi: 10.1016/0375-9474(74)90569-7
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