NSR Query Results
Output year order : Descending NSR database version of April 25, 2024. Search: Author = T.Udagawa Found 138 matches. Showing 1 to 100. [Next]2010SO06 Phys.Rev. C 81, 047604 (2010) W.Y.So, T.Udagawa, K.S.Kim, S.W.Hong, B.T.Kim Characteristics of the polarization part of the optical potential for a weakly bound projectile, 9Be NUCLEAR REACTIONS 28Si(9Be, X), E=9.1, 10.6, 12.9, 15.1, 17.4, 19.7 MeV; 144Sm(9Be, X), E=31.1, 32.0, 32.9, 34.8, 36.7, 38.6 MeV; 208Pb(9Be, X), E=36.4, 38.3, 40.3, 42.2, 44.1, 47.9 MeV; calculated ratios of elastic to Rutherford σ, direct reaction (DR) σ and fusion σ. Extended optical model with the double-folding potential.
doi: 10.1103/PhysRevC.81.047604
2008SO02 Phys.Rev. C 77, 024609 (2008) W.Y.So, T.Udagawa, S.W.Hong, B.T.Kim Extended optical model analyses of elastic scattering and fusion cross section data for the 12C+208Pb system at near-Coulomb-barrier energies by using a folding potential NUCLEAR REACTIONS 208Pb(12C, X), E=50-120 MeV; 208Pb(6Li, X), E=20-80 MeV; analyzed cross sections.
doi: 10.1103/PhysRevC.77.024609
2007SO03 Phys.Rev. C 75, 024610 (2007) W.Y.So, T.Udagawa, K.S.Kim, S.W.Hong, B.T.Kim Extended optical model analyses of elastic scattering and fusion cross sections for the 6Li+208Pb system at near-Coulomb-barrier energies using a folding potential NUCLEAR REACTIONS 208Pb(6Li, X), (6Li, 6Li), E(cm) ≈ 20-45 MeV; analyzed fusion σ, elastic σ(θ), related data; deduced polarization potential features. Extended optical model approach.
doi: 10.1103/PhysRevC.75.024610
2007SO13 Phys.Rev. C 76, 024613 (2007) W.Y.So, T.Udagawa, K.S.Kim, S.W.Hong, B.T.Kim Extended optical model analyses of elastic scattering and fusion cross section data for the 7Li+208Pb system at near-Coulomb-barrier energies using a folding potential NUCLEAR REACTIONS 208Pb(7Li, X), E not given; analyzed elastic scattering and fusion cross sections using the extended optical model.
doi: 10.1103/PhysRevC.76.024613
2005SO16 Phys.Rev. C 72, 064602 (2005) W.Y.So, S.W.Hong, B.T.Kim, T.Udagawa Extended optical model analyses of elastic scattering, direct reaction, and fusion cross sections for the 9Be + 208Pb system at near-Coulomb-barrier energies NUCLEAR REACTIONS 208Pb(9Be, 9Be), (9Be, X), E=36-48 MeV; analyzed elastic σ(θ), fusion and direct-reaction σ. Extended optical model.
doi: 10.1103/PhysRevC.72.064602
2004SO15 Phys.Rev. C 69, 064606 (2004) W.Y.So, S.W.Hong, B.T.Kim, T.Udagawa Extended optical model analyses of elastic scattering and fusion cross sections for heavy-ion collisions with loosely bound projectiles at near-Coulomb-barrier energies NUCLEAR REACTIONS 208Pb(6Li, X), (6Li, 6Li), E(cm)=28-38 MeV; 209Bi(9Be, X), (9Be, 9Be), E(cm)=38-46 MeV; analyzed fusion, breakup, and elastic scattering σ, σ(θ); deduced direct reaction and fusion potential features. Extended optical model analysis.
doi: 10.1103/PhysRevC.69.064606
2004SO24 Prog.Theor.Phys.(Kyoto), Suppl. 154, 217 (2004) W.Y.So, S.W.Hong, B.T.Kim, T.Udagawa Optical Model Analyses of Elastic Scattering, Fusion, and Breakup Reaction Induced by Loosely Bound Nuclei NUCLEAR REACTIONS 208Pb(16O, X), (16O, 16O), E(cm)=80-102 MeV; 208Pb(6Li, X), (6Li, 6Li), E(cm)=28-38 MeV; 209Bi(9Be, X), (9Be, 9Be), E(cm)=38-47 MeV; 209Bi(6He, X), (6He, 6He), E(cm)=14-22 MeV; analyzed fusion, elastic, breakup σ; deduced polarization potential. Extended optical model.
doi: 10.1143/PTPS.154.217
2002KI07 Phys.Rev. C65, 044607 (2002) B.T.Kim, W.Y.So, S.W.Hong, T.Udagawa Semiclassical Character and Optical Model Description of Heavy Ion Scattering, Direct Reactions, and Fusion at Near-Barrier Energies NUCLEAR REACTIONS 208Pb(16O, X), E=90 MeV; calculated elastic, direct reaction, and fusion probabilities. 208Pb(16O, X), E=80-110 MeV; calculated direct reaction and fusion σ. 208Pb(16O, 16O), E=80-102 MeV; calculated σ(θ). Optical model, comparisons with data.
doi: 10.1103/PhysRevC.65.044607
2002KI08 Phys.Rev. C65, 044616 (2002) B.T.Kim, W.Y.So, S.W.Hong, T.Udagawa Simultaneous Optical Model Analyses of Elastic Scattering, Breakup, and Fusion Cross Section Data for the 6He + 209Bi System at Near-Coulomb-Barrier Energies NUCLEAR REACTIONS 209Bi(6He, X), E(cm)=18.5, 21.9 MeV; calculated elastic, direct reaction, and fusion probabilities. 209Bi(6He, X), E(cm)=14-22 MeV; calculated direct reaction and fusion σ. 209Bi(6He, 6He), E=14.3-21.4 MeV; calculated σ(θ). Optical model, comparisons with data.
doi: 10.1103/PhysRevC.65.044616
2000KI03 Phys.Rev. C61, 044611 (2000) B.T.Kim, D.P.Knobles, S.A.Stotts, T.Udagawa Antisymmetric Distorted Wave Impulse Approximation Calculations of Spin Transfer Cross Sections for (3He(pol), t(pol)) Reactions to the Continuum NUCLEAR REACTIONS 12C, 90Zr(polarized p, n), (polarized 3He, t), E=200, 300 MeV/nucleon; calculated σ(θ=0°), spin transfer coefficients. DWIA, continuum Tamm-Dancoff method. Comparisons with data.
doi: 10.1103/PhysRevC.61.044611
2000PA45 Phys.Rev. C62, 024906 (2000) S.D.Paganis, G.W.Hoffmann, R.L.Ray, J.-L.Tang, T.Udagawa, R.S.Longacre Can Doubly Strange Dibaryon Resonances be Discovered at RHIC ? NUCLEAR REACTIONS 197Au(197Au, X), E(cm)=200 GeV/nucleon; calculated doubly strange dibaryon associated invariant mass spectra, detection probabilities.
doi: 10.1103/PhysRevC.62.024906
1998GO11 Nucl.Phys. A635, 346 (1998) A.Gomez-Camacho, E.Martinez-Quiroz, T.Udagawa Coupled-Channel Analysis of Scattering and Fusion Reactions on the System 16O + 60Ni for Energies Below and Above the Coulomb Barrier Energy NUCLEAR REACTIONS 60Ni(16O, 16O), E=36-142 MeV; 60Ni(16O, 16O'), E=42-56 MeV; calculated σ(θ). 60Ni(16O, X), E(cm)=30-60 MeV; calculated fusion σ. Coupled-channels calculations, comparison with data.
doi: 10.1016/S0375-9474(98)00185-7
1998GO15 Nuovo Cim. 111A, 35 (1998) A.Gomez-Camacho, E.F.Aguilera, T.Udagawa, Y.Sugiyama Unified Calculations of Scattering and Fusion Reactions on the Systems 28Si + 58Ni and 28Si + 64Ni at Near-Coulomb Barrier Energies NUCLEAR REACTIONS 58Ni(28Si, X), E=52.4-59.9 MeV; 64Ni(28Si, X), E=50.0-76.4 MeV; calculated fusion, elastic, 2+-inelastic σ. Coupled-channels approach, optical potential, comparison with data.
1998KI10 Nucl.Instrum.Methods Phys.Res. A402, 354 (1998) Intermediate Energy Charge-Exchange Reactions Induced by Polarized 3He NUCLEAR REACTIONS 12C(polarized p, n), (polarized 3He, t), E=200, 300 MeV/nucleon; calculated polarization transfer coefficients, σ(θ); deduced l=2 component.
doi: 10.1016/S0168-9002(97)00862-0
1997KO08 Phys.Rev. C55, 1819 (1997) B.Korfgen, P.Oltmanns, F.Osterfeld, T.Udagawa Damping Mechanisms of the Δ Resonance in Nuclei NUCLEAR REACTIONS 12C(π+, π+p), E=245 MeV; analyzed σ(Ep, θp, θ(π)). 12C(π+, 2p), E=165 MeV; analyzed σ(θ(p1), θ(p2)), σ(θ(p1), θ(p2), E1). 12C(3He, tpπ+), (3He, t2p), E=2 GeV; analyzed σ(θ) vs ω; deduced Δ(1232) resonance damping mechanisms related features. Δ-hole model.
doi: 10.1103/PhysRevC.55.1819
1997PA19 Phys.Rev. C56, 570 (1997) S.D.Paganis, T.Udagawa, G.W.Hoffmann, R.L.Ray Can Only Flavor-Nonsinglet H Dibaryons be Stable Against Strong Decays ( Question )
doi: 10.1103/PhysRevC.56.570
1996KN04 Phys.Rev. C54, 2090 (1996) D.P.Knobles, S.A.Stotts, T.Udagawa Reply to ` Comment on ` Continuum Tamm-Dancoff Approximation Calculations for the Escape Widths of the Isobaric Analog State and Gamow-Teller Resonance in 208Bi' ' NUCLEAR STRUCTURE 209Bi; analyzed IAS, Gamow-Teller resonances escape widths predictions; deduced continuum damping nature, mean-field, residual interaction self-consistency issue related features.
doi: 10.1103/PhysRevC.54.2090
1996PR03 Phys.Rev.Lett. 76, 4488 (1996) D.L.Prout, S.DeLucia, D.Cooper, B.Luther, E.Sugarbaker, T.N.Taddeucci, L.J.Rybarcyk, J.Rapaport, B.K.Park, C.D.Goodman, G.Edwards, C.Glashausser, T.Sams, T.Udagawa, F.Osterfeld Spin Decomposition of the Δ Resonance Cross Section using the 12C(p(pol), n(pol)) Reaction at E(p) = 795 MeV NUCLEAR REACTIONS 12C(polarized p, n), E=795 MeV; measured polarization observables; deduced spin-longitudinal, spin-transverse, spin-independent partial σ, Δ-production related features.
doi: 10.1103/PhysRevLett.76.4488
1995IZ01 Phys.Rev. C51, 761 (1995) Coupled-Channels Analyses of Scattering and Fusion Cross Sections of 16O + 152,154Sm, 186W Systems at Sub- and Near-Coulomb Barrier Energies NUCLEAR REACTIONS, ICPND 152Sm(16O, 16O), (16O, 16O'), (16O, X), E=59-72 MeV; analyzed σ(θ), fusion σ(E). 154Sm(16O, X), E(cm)=53-73 MeV; 186W(16O, X), E=63-83 MeV; analyzed fusion σ(E); deduced models parameters. Coupled-channels approach.
doi: 10.1103/PhysRevC.51.761
1995KN04 Phys.Rev. C52, 2257 (1995) D.P.Knobles, S.A.Stotts, T.Udagawa Continuum Tamm-Dancoff Approximation Calculations for the Escape Widths of the Isobaric Analog State and Gamow-Teller Resonance in 208Bi NUCLEAR STRUCTURE 208Bi; calculated IAS, Gamow-Teller resonance proton escape widths. Charge-exchange continuum Tamm-Dancoff equations.
doi: 10.1103/PhysRevC.52.2257
1994KI13 Phys.Rev. C50, 2035 (1994) C.-Y.Kim, T.Udagawa, J.Guillot, H.Langevin-Joliot, J.Van de Wiele, J.J.Florent, A.Willis, E.Hourani, E.Gerlic, G.Duhamel-Chretien Breakup-Fusion Analyses of the 240 MeV 40Ca(3He, d) and 40Ca(3He, dp) Reactions NUCLEAR REACTIONS 40Ca(3He, dX), (3He, dp), E=240 MeV; measured exclusive, inclusive 41Sc excitation energy spectra. Breakup-fusion analysis.
doi: 10.1103/PhysRevC.50.2035
1994KO23 Phys.Rev. C50, 1637 (1994) B.Korfgen, F.Osterfeld, T.Udagawa Longitudinal and Transverse Spin Response of 12C in the Δ Resonance Region NUCLEAR REACTIONS 12C(π-, π-), E=120-280 MeV; 12C(γ, π0), E at ≈ 175-450 MeV/c; calculated σ(θ), σ(E). 12C(3He, tπ+), E=2 GeV; calculated σ(θ). Isobar-hole model.
doi: 10.1103/PhysRevC.50.1637
1994OS02 Nucl.Phys. A577, 237c (1994) F.Osterfeld, B.Korfgen, P.Oltmanns, T.Udagawa Δ Excitations in Nuclei and Their Decay Properties NUCLEAR REACTIONS 12C(3He, t), (3He, 2pt), E=2 GeV; analyzed σ(θ) vs energy transfer. 12C(3He, tπ+), E=2 GeV; 12C(π-, π-), E=120 MeV; 12C(γ, π0), E at 235 MeV/c; analyzed σ(θ(π)). Isobar-hole model.
doi: 10.1016/0375-9474(94)90862-1
1994UD01 Phys.Rev. C49, 3162 (1994) T.Udagawa, P.Oltmanns, F.Osterfeld, S.W.Hong Δ Excitations in Nuclei and Their Decay Properties NUCLEAR REACTIONS 1H(p, nX), 12C(p, n), E=0.8 GeV; 1H(3He, tX), 12C(3He, t), E=2 GeV; calculated σ(θ, En), σ(θ, Et). 1H(polarized p, nX), E=0.8 GeV; calculated spin transfer coefficient. Formalism for Δ excitation.
doi: 10.1103/PhysRevC.49.3162
1994UD02 Nucl.Phys. A577, 67c (1994) T.Udagawa, D.P.Knobles, S.A.Stotts Continuum Tamm-Dancoff-Approximation Calculations of the Escape Widths of the Gamow-Teller Resonance in 208Bi NUCLEAR STRUCTURE 208Bi; calculated Gamow-Teller, IAR resonance energies, proton escape widths. Charge-exchange, continuum TDA.
doi: 10.1016/0375-9474(94)90835-4
1993GO25 Nucl.Phys. A565, 607 (1993) Calculations on the Giant-Dipole Resonance in the Continuum Random-Phase Approximation with a Momentum-Dependent Interaction NUCLEAR REACTIONS 4He(γ, p), (γ, n), E=20-34 MeV; 16O(γ, p), (γ, n), E=15-35 MeV; 40Ca(γ, p), (γ, n), E=12-34 MeV; calculated σ(E) near GDR. Continuum RPA.
doi: 10.1016/0375-9474(93)90048-3
1993GU10 Nucl.Phys. A564, 425 (1993) P.Guazzoni, M.Jaskola, L.Zetta, C.-Y.Kim, T.Udagawa, G.Bohlen Study of the 40Ca(6Li, d)44Ti Reaction at 60.1 MeV with the Breakup-Fusion Model NUCLEAR REACTIONS 40Ca(6Li, d), E=60.1 MeV; measured σ(θ), σ(Ed). 44Ti deduced levels, J, π, band structure, spectroscopic factors. Breakup fusion model.
doi: 10.1016/0375-9474(93)90513-W
1993OL01 Phys.Lett. 299B, 194 (1993) P.Oltmanns, F.Osterfeld, T.Udagawa Coherent Pion Production in Intermediate Energy Charge-Exchange Reactions NUCLEAR REACTIONS 12C(p, nX), E=800, 822 MeV; calculated inclusive, exclusive, coherent pion production, σ(θ, E); deduced unique signature on nuclear pionic mode.
doi: 10.1016/0370-2693(93)90246-E
1993OL06 Acta Phys.Pol. B24, 1609 (1993) P.Oltmanns, B.Korfgen, F.Osterfeld, T.Udagawa Coherent Pion Production in the Delta Resonance Region NUCLEAR REACTIONS 12C(3He, tX), E=2 GeV; 12C(γ, π0), E=235, 291 MeV; compiled, reviewed data, model analyses; deduced coherent pion production features.
1993OS02 Phys.Scr. 48, 95 (1993) F.Osterfeld, B.Korfgen, P.Oltmanns, T.Udagawa Δ Excitations in Nuclei and the Coherent Pion Decay NUCLEAR REACTIONS 12C(γ, X), (π, X), E=200-400 MeV; calculated total σ(E). 1H(polarized p, X), E=800 MeV; calculated spin transfer coefficients vs energy transfer for neutron. 12C(polarized p, n), E=800, 822 MeV; calculated σ(θ), spin transfer coefficient vs energy transfer. Isobar-hole model.
doi: 10.1088/0031-8949/48/1/016
1992KI18 Phys.Rev. C46, 532 (1992) Breakup-Fusion Analyses of the 40Ca(6Li, d)44Ti Reactions and α-Cluster Structure in 44Ti NUCLEAR REACTIONS 40Ca(6Li, d), E=28, 50 MeV; analyzed σ(θ). 44Ti deduced levels, J, π, α-cluster structure, spectroscopic factors. Breakup-fusion approach.
doi: 10.1103/PhysRevC.46.532
1992UD01 Phys.Rev. C45, 876 (1992) Systematics of Sub- and Near-Barrier Fusion Cross Sections and the Threshold Anomaly NUCLEAR REACTIONS 60Ni(16O, X), E(cm)=30-48 MeV; calculated fusion σ related parameter 'S' vs E; deduced threshold energy ambiguity.
doi: 10.1103/PhysRevC.45.876
1991KI16 Phys.Lett. 273B, 37 (1991) Dynamical Fusion and Direct Reaction Polarization Potentials for Heavy-Ion Scattering and Fusion at Sub-Coulomb-Barrier Energies NUCLEAR REACTIONS 208Pb(16O, X), E=80 MeV; calculated absorption density vs radius, fusion, direct reaction. Dynamical polarization potential.
doi: 10.1016/0370-2693(91)90549-6
1991KN04 Nucl.Phys. A533, 189 (1991) Random-Phase Approximation Calculations of the Nuclear Response in the Continuum Using a Finite-Range Interaction NUCLEAR STRUCTURE 16O, 40Ca; calculated giant quadrupole resonance, Γ, strength function, partial particle emission strength. Continuum RPA.
doi: 10.1016/0375-9474(91)90486-P
1991OS02 Nucl.Phys. A527, 405c (1991) F.Osterfeld, S.-W.Hong, T.Udagawa Spin-Isospin Response of Nuclei in the Δ Resonance Region NUCLEAR REACTIONS 12C(p, n), E=800 MeV; 12C(3He, t), E=2 GeV; calculated ejectile spectra, σ(θ, E); deduced isobar peak shift features.
doi: 10.1016/0375-9474(91)90130-X
1990KI03 Phys.Lett. 237B, 19 (1990) Polarization Potentials in Heavy Ion Scattering and Fusion NUCLEAR REACTIONS, ICPND 208Pb(16O, 16O), E=80-104 MeV; calculated σ(θ). 208Pb(16O, X), E=80-104 MeV; calculated total, fusion, reaction σ(E). Polarization potential.
doi: 10.1016/0370-2693(90)90453-D
1990KI09 Phys.Rev. C42, 1147 (1990) Method for Nonlocal Optical Model Calculations NUCLEAR REACTIONS 208Pb(n, n), E=7, 14.5 MeV; 208Pb(16O, 16O), E=80 MeV; analyzed data. Nonlocal optical model, rapid solving method.
doi: 10.1103/PhysRevC.42.1147
1990MA42 Phys.Rev. C42, 683 (1990) R.C.Mastroleo, T.Udagawa, M.G.Mustafa Calculations of Complete Fusion, Incomplete Fusion, and Direct Reaction Cross Sections for Deuteron-Induced Reactions NUCLEAR REACTIONS 93Nb(d, p), E=15, 25.5 MeV; calculated σ(Ep, θp), angle integrated σ. Microscopic breakup-fusion, direct-reaction theories.
doi: 10.1103/PhysRevC.42.683
1990MA58 Phys.Lett. 245B, 329 (1990) R.C.Mastroleo, T.Udagawa, M.G.Mustafa Dynamical Calculations of Linear Momentum Transfer in α-Induced Reactions NUCLEAR REACTIONS, ICPND 59Co(α, X), E=80 MeV; calculated reaction σ for X=n, p, d, 3He, t, 2p, 2n, α. Dynamical model.
doi: 10.1016/0370-2693(90)90653-N
1990UD01 Phys.Lett. 245B, 1 (1990) T.Udagawa, S.-W.Hong, F.Osterfeld Δ Excitations in Nuclei NUCLEAR REACTIONS 1H, 12C(p, nX), E=0.8 GeV; 1H, 12C(3He, tX), E=2 GeV; calculated σ(θ, E); deduced Δ excitations role. TDA, DWIA.
doi: 10.1016/0370-2693(90)90154-X
1990UT02 Nucl.Phys. A511, 379 (1990) H.Utsunomiya, Y.-W.Lui, L.Cooke, H.Dejbakhsh, D.R.Haenni, P.Heimberg, A.Ray, B.K.Srivastava, R.P.Schmitt, T.Udagawa Continuous Distribution of αt Relative Kinetic Energies in 7Li Breakup Reactions NUCLEAR REACTIONS 208Pb(7Li, 7Li), (7Li, 7Li'), E=63 MeV; measured σ(θ). 208Pb, 144Sm, 120Sn, 58Ni(7Li, αt), E=63 MeV; measured σ(Eα, Et, θ); deduced astrophysical implications. Enriched targets. Enge split-pole spectrograph. DWBA analysis.
doi: 10.1016/0375-9474(90)90165-I
1990UT03 Phys.Rev.Lett. 65, 847 (1990); Erratum Phys.Rev.Lett. 69, 863 (1992) H.Utsunomiya, Y.-W.Lui, D.R.Haenni, H.Dejbakhsh, L.Cooke, B.K.Srivastava, W.Turmel, D.O'Kelly, R.P.Schmitt, D.Shapira, J.Gomez del Campo, A.Ray, T.Udagawa Breakup of 7Li Near the α-t Threshold and a Possible Probe of Radiative-Capture Processes NUCLEAR REACTIONS, ICPND 27Al, 58Ni, 120Sn, 144Sm, 208Pb(7Li, tα), E=42, 63 MeV; measured σ(θ(7Li)) vs E(αt); deduced B(λ), astrophysical S-factor vs E.
doi: 10.1103/PhysRevLett.65.847
1989AU02 Phys.Lett. 219B, 184 (1989) N.Auerbach, F.Osterfeld, T.Udagawa The Spin Isovector Monopole Strength and the (3He, t) Reaction NUCLEAR REACTIONS 90Zr(p, n), E=200 MeV; 90Zr(3He, t), E=600 MeV; calculated σ(θ), energy integrated σ; deduced spin-flip isovector monopole resonance role.
doi: 10.1016/0370-2693(89)90374-2
1989HO04 Nucl.Phys. A491, 492 (1989) S.-W.Hong, T.Udagawa, T.Tamura The Size of the Fusion Potential NUCLEAR REACTIONS, ICPND 208Pb(16O, X), E=83-102 MeV; calculated σ(θ), fusion σ(E); deduced model parameters.
doi: 10.1016/0375-9474(89)90582-4
1989MA13 J.Phys.(London) G15, 473 (1989) R.C.Mastroleo, T.Udagawa, T.Tamura Exact Finite Range Evaluation of Breakup-Fusion Cross Sections in the Post-Form NUCLEAR REACTIONS 58Ni(α, p), E=80 MeV; 62Ni(d, p), E=25.5 MeV; calculated σ(θp, Ep); deduced σ. Exact finite range breakup-fusion σ evaluation, post-form.
doi: 10.1088/0954-3899/15/4/011
1989UD01 Phys.Rev. C39, 47 (1989) Breakup-Fusion Analyses of Single-Nucleon Stripping to Bound and Unbound Orbits NUCLEAR REACTIONS 27Al(d, p), E=25.5 MeV; 62Ni(d, p), E=15, 25.5 MeV; 144Sm(α, t), E=80 MeV; calculated σ(θp, Ep), σ(θt, Et); deduced model parameters. Breakup fusion analysis.
doi: 10.1103/PhysRevC.39.47
1989UD02 Phys.Rev. C39, 1840 (1989) Simultaneous Analyses of Elastic Scattering and Fusion Cross Sections for the 32S + 58,64Ni Systems at Energies Near the Coulomb Barrier NUCLEAR REACTIONS, ICPND 58,64Ni(32S, X), (32S, 32S), E=82-108 MeV; calculated σ(θ), fusion σ(E); deduced fusion potential radius, optical model parameters.
doi: 10.1103/PhysRevC.39.1840
1989UD03 Phys.Rev. C40, 2271 (1989) Random-Phase-Approximation Calculations of Nuclear Response in the Continuum NUCLEAR STRUCTURE 16O, 40Ca, 208Pb; calculated energy weighted quadrupole transition strength RPA.
doi: 10.1103/PhysRevC.40.2271
1989UD04 Phys.Lett. 230B, 6 (1989) Continuum Random-Phase-Approximation Study of Direct Decay of Giant Monopole Resonances in 90Zr and 208Pb NUCLEAR STRUCTURE 90Zr, 208Pb; calculated giant monopole resonance widths, EWSR strength distribution. Continuum RPA.
doi: 10.1016/0370-2693(89)91643-2
1988UD01 Phys.Rev. C37, 429 (1988) Breakup-Fusion Analysis of Continuum Spectra of α- and h-Induced Reactions NUCLEAR REACTIONS, MECPD 58Ni(α, p), (α, d), (α, t), E=80, 160 MeV; 90Zr(α, p), (α, 2p), E=140 MeV; 165Ho(3He, p), (3He, d), E=100 MeV; calculated σ(θp, Ep), σ(θ(t), E(t)), σ(θd, Ed). Break-up fusion model.
doi: 10.1103/PhysRevC.37.429
1988UD02 Phys.Rev. C37, 2261 (1988) T.Udagawa, T.Tamura, R.C.Mastroleo Exact and Approximate Sum Rules for Inclusive Breakup Reactions NUCLEAR REACTIONS 58Ni(α, p), E=80 MeV; 62Ni(d, p), E=15 MeV; calculated σ(θp, Ep). Exact, approximate sum rule comparisons.
doi: 10.1103/PhysRevC.37.2261
1988UD03 Nucl.Phys. A482, 391c (1988) Delta Excitations in Nuclei NUCLEAR REACTIONS 40Ca, 12C(p, n), E=800 MeV; 40Ca, 12C(3He, t), E=2 GeV; calculated σ(θ, En), σ(θ, Et). Isobar-hole model.
doi: 10.1016/0375-9474(88)90599-4
1988UT01 Phys.Lett. 211B, 24 (1988) H.Utsunomiya, R.P.Schmitt, Y.-W.Lui, D.R.Haenni, H.Dejbakhsh, L.Cooke, P.Heimberg, A.Ray, T.Tamura, T.Udagawa Observation of α-t Continuum States with Relative Energies of 0-2 MeV in 7Li Breakup Reactions NUCLEAR REACTIONS 208Pb, 144Sm, 120Sn, 58Ni(7Li, tα), E=63 MeV; measured αt-coin, σ(θ, θ(αt)) vs E(αt); deduced αt-continuum states. 208Pb, 120Sn(7Li, 7Li'), E=63 MeV; measured σ(θ) following Coulomb excitation.
doi: 10.1016/0370-2693(88)90800-3
1988WO06 J.Phys.(London) G14, 745 (1988) B.R.Wong, K.S.Low, T.Tamura, T.Udagawa Extension of a Semiclassical Method for Heavy-Ion-Induced Nuclear Reactions NUCLEAR REACTIONS 58Ni(40Ar, 40Ar'), (40Ar, 41K), E=280 MeV; calculated σ vs (Q). Semi-classical DWBA.
doi: 10.1088/0305-4616/14/6/014
1987MU08 Phys.Rev. C35, 2077 (1987) M.G.Mustafa, T.Tamura, T.Udagawa Direct-Reaction Plus Statistical-Model Analysis of the 52Cr(d, 2n)52gMn, 52mMn Reaction NUCLEAR REACTIONS, ICPND 52Cr(d, 2n), E=8-20 MeV; calculated residual production σ(E), isomer ratios. Direct reaction plus statistical model analyses.
doi: 10.1103/PhysRevC.35.2077
1987SC04 Phys.Lett. 183B, 243 (1987) A.Schulte, T.Udagawa, F.Osterfeld, D.Cha Theoretical Study of the 90Zr(3He, t) and 90Zr(p, n) Reactions at E = 200 MeV per Nucleon NUCLEAR REACTIONS 90Zr(3He, t), (p, n), E=200 MeV/nucleon; calculated σ(θ), σ(θt, Et), σ(θn, En). 90Nb deduced high L mode excitation mechanism. DWIA, random phase approximation.
doi: 10.1016/0370-2693(87)90956-7
1987SH15 Phys.Rev.Lett. 59, 1054 (1987) S.Shlomo, D.H.Youngblood, T.Udagawa, T.Tamura Excitation of the Isovector Giant Dipole by α-Particle Scattering NUCLEAR REACTIONS 116Sn(α, α'), E=129 MeV; analyzed σ(θ). 116Sn deduced isovector giant dipole excitation role.
doi: 10.1103/PhysRevLett.59.1054
1987SH20 Phys.Rev. C36, 1317 (1987) S.Shlomo, Y.-W.Lui, D.H.Youngblood, T.Udagawa, T.Tamura Coulomb and Nuclear Excitation of Giant Dipole Resonances in (α, α') Inelastic Scattering NUCLEAR REACTIONS, MECPD 90Zr(α, α'), E=96 MeV; 116Sn(α, α'), E=129 MeV; 208Pb(α, α'), E=96, 129, 172, 218 MeV; calculated σ(θ); deduced negligible GDR contributions in monopole resonance excitation.
doi: 10.1103/PhysRevC.36.1317
1987UD01 Phys.Lett. 196B, 291 (1987) Extension of the Breakup-Fusion Description to Stripping Reactions to Negative Energy States NUCLEAR REACTIONS, MECPD 27Al(d, p), E=25.5 MeV; calculated σ(E(p), θ(p)).
doi: 10.1016/0370-2693(87)90733-7
1987UD02 Nucl.Phys. A474, 131 (1987) T.Udagawa, A.Schulte, F.Osterfeld Antisymmetric Distorted Wave Impulse Approximation Calculations for Composite Particle Scattering NUCLEAR REACTIONS 90Zr(3He, t), E=600 MeV; calculated σ(θ); deduced σ(E). Microscopic DWIA.
doi: 10.1016/0375-9474(87)90197-7
1986KI01 Phys.Rev. C33, 370 (1986) Spin Distribution of Compound Nucleus Formed by Near-Barrier Fusion NUCLEAR REACTIONS, ICPND 154Sm(16O, X), E(cm)=55-70 MeV; 144Nd(16O, X), 123Sb(37Cl, X), 96Zr(64Ni, X), 80Se(80Se, X), E(cm)=50-60 MeV; calculated fusion σ(E), compound system <J>. Direct reaction approach.
doi: 10.1103/PhysRevC.33.370
1986KI04 Phys.Rev. C33, 1270 (1986) B.T.Kim, T.Udagawa, M.Benhamou, T.Tamura Knockout and Knockout-Fusion Contributions to the (p, p')-Type Singles Cross Sections NUCLEAR REACTIONS 54Fe, 27Al(p, p'), E=62 MeV; calculated σ(θ, Ep'); deduced knockout, knockout-fusion contributions. Multi-step formalism.
doi: 10.1103/PhysRevC.33.1270
1986LI05 Phys.Lett. 174B, 1 (1986) Breakup-Pickup and Breakup-Pickup-Fusion Contributions to the Continuum Spectra of (α, d) Reactions NUCLEAR REACTIONS 58Ni(α, d), E=160 MeV; calculated σ(θd, Ed); deduced breakup reaction mechanism.
doi: 10.1016/0370-2693(86)91116-0
1985UD01 Phys.Rev. C32, 124 (1985) Direct Reaction Description of Sub- and Above-Barrier Fusion of Heavy Ions NUCLEAR REACTIONS, ICPND 148,152Sm(16O, X), E(cm)=55-70 MeV; 122Sn(40Ar, X), E(cm)=90-120 MeV; 208Pb(16O, X), E(cm)=75-95 MeV; 40,44Ca(40Ca, X), E(cm)=48-66 MeV; 118Sn(64Ni, X), E(cm)=150-180 MeV; 124Sn(58Ni, X), E(cm)=155-200 MeV; 58,64Ni(58Ni, X), E(cm) ≈ 90-110 MeV; 90,94Zr, 96Mo, 104Ru(81Br, X), E(cm) ≈ 150-200 MeV; calculated fusion σ(E); deduced fusion radius parameters. Optical model, coupled-channels methods.
doi: 10.1103/PhysRevC.32.124
1985UD02 Phys.Rev. C32, 1435 (1985) T.Udagawa, S.-W.Hong, T.Tamura Direct Reaction Description of Complete Fusion above Barrier NUCLEAR REACTIONS, ICPND 40Ca(16O, X), E=39.4-214 MeV; calculated fusion σ(E); deduced fusion radius parameter. Energy-dependent optical model.
doi: 10.1103/PhysRevC.32.1435
1984KI08 Phys.Rev. C30, 1087 (1984) Microscopic Calculations of Knockout Reactions Induced by 6Li NUCLEAR REACTIONS 28Si(6Li, 6Li'), E=156 MeV; calculated σ(θ, E(6Li)), σ(θ). Knockout mechanism.
doi: 10.1103/PhysRevC.30.1087
1984LI17 Phys.Rev. C30, 1349 (1984) Breakup-Fusion Calculations of Continuum Spectra of (h, p) and (h, d) Reactions at E(h) = 100 MeV NUCLEAR REACTIONS 165Ho(3He, p), (3He, d), E=100 MeV; calculated σ(θp, Ep), σ(θd, Ed); deduced breakup fusion, elastic breakup σ relative contribution, dominant process radial extension.
doi: 10.1103/PhysRevC.30.1349
1984LI22 Phys.Rev. C30, 1895 (1984) Assessment of Approximations Made in Breakup-Fusion Descriptions NUCLEAR REACTIONS 93Nb(d, p), E=25.5 MeV; 58Ni(α, t), E=160 MeV; 58Ni(α, p), E=80, 160 MeV; calculated σ(Ep, θ); deduced approximation accuracies. Different breakup-fusion models.
doi: 10.1103/PhysRevC.30.1895
1984UD01 Phys.Lett. 135B, 333 (1984) Breakup-Fusion Description of Nonequilibrium Protons from (α, p) Reactions NUCLEAR REACTIONS 58Ni(α, pX), E=80 MeV; 165Ho(α, pX), E=110 MeV; calculated inclusive σ(θp, Ep); deduced reaction mechanism. Breakup-fusion description.
doi: 10.1016/0370-2693(84)90287-9
1984UD02 Phys.Rev. C29, 1922 (1984) Heavy-Ion Subbarier Fusion in Terms of the Direct Reaction Technique NUCLEAR REACTIONS 64,58Ni(58Ni, X), E(cm) ≈ 90-100 MeV; calculated fusion σ(E). Sub-barrier fusion, direct reaction theory.
doi: 10.1103/PhysRevC.29.1922
1984UD03 Phys.Lett. 143B, 15 (1984) Breakup-Fusion Description of the (α, d) and (α, t) Reactions NUCLEAR REACTIONS 58Ni(α, d), (α, t), E=80, 160 MeV; calculated σ(Ed, θd), σ(Et, θt); deduced breakup-fusion role. DWBA analysis.
doi: 10.1016/0370-2693(84)90795-0
1983LE06 Phys.Lett. 122B, 333 (1983) H.Lenske, S.Landowne, H.H.Wolter, T.Tamura, T.Udagawa Direct Reaction Analysis of Continuum Spectra and Polarizations in the 48Ti(16O, 16O') Reaction NUCLEAR REACTIONS 48Ti(16O, 16O'), E=100 MeV; calculated σ(θ, E(16O)), γ CP vs E(16O), θ. One-, two-step excitations, correlated particle-hole response functions.
doi: 10.1016/0370-2693(83)91576-9
1983UD01 Phys.Rev. C28, 1033 (1983) Assessment of the Feshbach-Kerman-Koonin Approximations in Multistep Direct Reaction Theories NUCLEAR REACTIONS 58Ni(16O, 16O'), E=60, 100 MeV; 208Pb(p, p'), E=40 MeV; calculated σ(θ). 208Pb(p, p'), E=60 MeV; calculated σ(θ), σ(Ep, θp).
doi: 10.1103/PhysRevC.28.1033
1982TA14 Phys.Rev. C26, 379 (1982) Multistep Direct Reaction Analysis of Continuum Spectra in Reactions Induced by Light Ions NUCLEAR REACTIONS 27Al(p, p'), E=62 MeV; 208Pb(p, n), E=45 MeV; calculated σ(θ). 209Bi(p, p'), 54Fe(p, α), E=62 MeV; calculated σ(θ), σ(Eα, θα); 93Nb(polarized p, α), E=65 MeV; calculated σ(Eα, θα), analyzing power vs θ; 208Pb(polarized p, p'), E=62 MeV; calculated A(θ). Multi-step direct reaction, continuum effects.
doi: 10.1103/PhysRevC.26.379
1982UD01 Phys.Lett. 116B, 311 (1982) Exact-Finite-Range DWBA Calculations of Massive Transfer Reactions Treated as Breakup-Fusion Reactions NUCLEAR REACTIONS 181Ta(14N, α), E=115 MeV; analyzed σ(θ, Eα); deduced reaction mechanism. Exact finite range DWBA, breakup fusion.
doi: 10.1016/0370-2693(82)90288-X
1982UD02 Phys.Lett. 118B, 45 (1982) Exact-Finite-Range DWBA Calculations of Massive Transfer Reactions Treated as Breakup-Fusion Reactions NUCLEAR REACTIONS 181Ta(14N, α), E=115 MeV; calculated σ(θ, Eα); deduced breakup-fusion preipheral character. Exact finite-range DWBA analysis.
doi: 10.1016/0370-2693(82)90598-6
1981IZ02 Phys.Rev. C24, 2179 (1981) T.Izumoto, Y.-W.Lui, D.H.Youngblood, T.Udagawa, T.Tamura Coulomb Excitation of the Giant Dipole Resonance in Light-Ion Inelastic Scattering from 208Pb NUCLEAR REACTIONS 208Pb(α, α'), E=96, 129, 172, 218 MeV; 208Pb(3He, 3He'), E=108.5, 217 MeV; 208Pb(d, d'), E=86, 108 MeV; 208Pb(p, p'), E=201 MeV; analyzed σ(θ). Coupled-channels analysis, GDR excitation.
doi: 10.1103/PhysRevC.24.2179
1981TA02 Phys.Rev. C23, 772 (1981) E.Takada, T.Shimoda, N.Takahashi, T.Yamaya, K.Nagatani, T.Udagawa, T.Tamura Projectile Breakup Reaction and Evidence of a Breakup-Fusion Mechanism NUCLEAR REACTIONS 40Ca(20Ne, 16Oα), E=260 MeV; measured σ(E(16O)), 16Oα-coin, σ(θ(16O), θα); deduced reaction mechanism for projectile breakup, breakup fusion. Kerman-McVoy formalism.
doi: 10.1103/PhysRevC.23.772
1981TA13 Phys.Rev. C23, 2769 (1981) Multistep Direct Reaction Analysis of Analyzing Powers of Continuum Spectra in (p, α) Reactions NUCLEAR REACTIONS 93Nb(polarized p, α), E=65 MeV; analyzed σ(Eα, θα), analyzing power vs θ. Multi-step direct reaction theory.
doi: 10.1103/PhysRevC.23.2769
1981WE09 Phys.Rev. C24, 703 (1981) K.J.Weeks, T.Tamura, T.Udagawa, F.J.W.Hahne Coupling of Collective Quadrupole and Monopole Pairing Vibrations in the Ge Nuclei NUCLEAR STRUCTURE 68,70,72,74,76Ge; calculated levels, B(E2), quadrupole moments, E0 transitions, two-nucleon transfer S. Boson expansion, RPA.
doi: 10.1103/PhysRevC.24.703
1980UD01 Phys.Rev. C21, 1271 (1980) Breakup of Strongly Absorptive Projectiles: Application to (h, dp) Reaction NUCLEAR REACTIONS 51V(3He, dp), E=90 MeV; calculated σ(Ed, θd, θp). Modified, exact finite range DWBA.
doi: 10.1103/PhysRevC.21.1271
1980UD02 Phys.Rev.Lett. 45, 1311 (1980) Breakup-Fusion Description of Massive Transfer Reactions with Emission of Fast Light Particles NUCLEAR REACTIONS 159Tb(14N, xnα), 181Ta(14N, α), E=115 MeV; calculated σ(θ, Eα). Massive transfer reaction, breakup fusion sequence.
doi: 10.1103/PhysRevLett.45.1311
1979FR02 Phys.Rev.Lett. 42, 1518 (1979) H.Frohlich, T.Shimoda, M.Ishihara, K.Nagatani, T.Udagawa, T.Tamura Alpha-Transfer Reactions with Large Energy Transfers NUCLEAR REACTIONS 40Ca(20Ne, 16O), E=262 MeV; 40Ca(14N, 10B), E=153 MeV; 40Ca(13C, 9Be), E=149 MeV; measured σ(θ), σ(E(16O), θ). Direct reaction theory analysis.
doi: 10.1103/PhysRevLett.42.1518
1979IS03 Phys.Rev.Lett. 43, 111 (1979) M.Ishihara, T.Shimoda, H.Frohlich, H.Kamitsubo, K.Nagatani, T.Udagawa, T.Tamura Prevalence of Direct-Reaction Mechanism in a Deeply Inelastic Reaction, 197Au(19F, 12B) NUCLEAR REACTIONS 197Au(19F, 12B), E=186 MeV; measured σ, spin polarization of 12B; deduced reaction mechanism. DWBA analysis.
doi: 10.1103/PhysRevLett.43.111
1979TA09 Nucl.Phys. A321, 269 (1979) T.Takemasa, T.Tamura, T.Udagawa Exact Finite Range Calculations of Light-Ion Induced Two-Neutron Transfer Reactions NUCLEAR REACTIONS 92Zr(t, p), E=20 MeV; 208Pb(p, t), E=40 MeV; calculated σ(θ). exact finite-range, DWBA analysis.
doi: 10.1016/0375-9474(79)90126-X
1979TA16 Phys.Lett. 87B, 25 (1979) T.Takemasa, T.Tamura, T.Udagawa A Full Finite-Range CCBA Analysis of the 118Sn(p, t)116Sn Reaction NUCLEAR REACTIONS 118Sn(p, t), E=52 MeV; calculated σ(θ). Finite range coupled-channel Born approximation.
doi: 10.1016/0370-2693(79)90008-X
1979UD01 Phys.Lett. 82B, 349 (1979) Analysis of Continuous Spectra of the Reactions (20Ne, 16O) and (20Ne, 12C) in Terms of Multi-Step Direct Reaction Theory NUCLEAR REACTIONS 27Al(20Ne, 16O), (20Ne, 12C), E=120 MeV; calculated σ. Quantum mechanical, multistep direct reaction theory.
doi: 10.1016/0370-2693(79)90239-9
1979UD02 Phys.Rev. C20, 1949 (1979) T.Udagawa, T.Tamura, T.Shimoda, H.Frohlich, M.Ishihara, K.Nagatani Breakup Processes in Heavy-Ion Induced Reactions NUCLEAR REACTIONS 40Ca(20Ne, 16O), E=149-262 MeV; calculated σ(E, Eα, θα). DWBA for 20Ne breakup, α-transfer.
doi: 10.1103/PhysRevC.20.1949
1978HE03 Z.Phys. A284, 413 (1978) E.F.Hefter, H.V.Geramb, F.Osterfeld, T.Udagawa Two-Step Processes in Inelastic Proton Scattering NUCLEAR REACTIONS 16O, 40Ca(p, p'), 16O(p, d), E=25-46 MeV; calculated σ(θ). Reaction mechanism study.
doi: 10.1007/BF01422110
1978KU10 Phys.Rev. C18, 1929 (1978) S.Kubono, S.J.Tripp, D.Dehnhard, T.Udagawa, T.Tamura Forbidden Transitions in the 40Ca(15N, 16O)39K Reaction and the L = 1 Problem NUCLEAR REACTIONS 40Ca(15N, 16O), E=60 MeV; measured σ(θ). CCBA, DWBA analyses.
doi: 10.1103/PhysRevC.18.1929
1978TA21 Phys.Lett. 78B, 189 (1978) Ground State Correlation and the Continuum Spectra of (p, p') Reactions NUCLEAR REACTIONS 209Bi(p, p'), E=62 MeV; calculated σ(θ) including ground state correlation, transfer of large momenta.
doi: 10.1016/0370-2693(78)90002-3
1978UD01 Phys.Rev.Lett. 41, 1770 (1978) Description of the Polarization of 12B Produced in the Reaction 100Mo(14N, 12B)102Ru NUCLEAR REACTIONS 100Mo(14N, 12B); calculated polarization of 12B in exact finite range DWBA; deduced role of recoil.
doi: 10.1103/PhysRevLett.41.1770
1977LO04 Phys.Lett. 67B, 5 (1977) CCBA Fit to Anomalous Angular Distribution of 40Ca(13C, 14N)39K(3/2+) Reaction NUCLEAR REACTIONS 40Ca(13C, 14N); calculated σ(θ).
doi: 10.1016/0370-2693(77)90789-4
1977OS01 Nucl.Phys. A278, 1 (1977) F.Osterfeld, T.Udagawa, H.H.Wolter Effects of Nonorthogonality Corrections in Two-Step Processes in (τ, t) Reactions NUCLEAR REACTIONS 48Ca(3He, t), E=18, 22, 23, 30.2 MeV; calculated σ(Et, θ).
doi: 10.1016/0375-9474(77)90181-6
1977TA02 Phys.Lett. 66B, 109 (1977) T.Tamura, T.Udagawa, D.H.Feng, K.-K.Kan Deep Inelastic Reactions Treated as Multi-Step Direct Reaction Processes. Application to (p, p') Reaction NUCLEAR REACTIONS 27Al, 209Bi(p, p'), E=62 MeV; calculated σ(θ).
doi: 10.1016/0370-2693(77)90151-4
1977TA12 Phys.Lett. 71B, 273(1977) Multi-Step Direct-Reaction Analysis of Continuum Spectra of (p, α) Reaction NUCLEAR REACTIONS 54Fe(p, α), E=62 MeV; calculated σ(Eα, θ).
doi: 10.1016/0370-2693(77)90213-1
1976CO09 Phys.Rev. C13, 1200 (1976) M.E.Cobern, M.C.Lemaire, K.S.Low, M.C.Mermaz, H.Sztark, T.Udagawa, T.Tamura Multistep Processes in Transfer Reactions Induced by 56 MeV 16O Beam on 72,74,76Ge Isotopes NUCLEAR REACTIONS 72,74,76Ge(16O, 14C), E=56 MeV; measured σ(θ). 74,76,78Se levels deduced B(E2). CCBA, DWBA analysis.
doi: 10.1103/PhysRevC.13.1200
1976FE08 Phys.Rev. C14, 1484 (1976) D.H.Feng, T.Tamura, T.Udagawa, J.Lynch, K.S.Low Absolute Cross Section of the Reaction 48Ca(18O, 16O)50Ca NUCLEAR REACTIONS 48Ca(18O, 16O), E=50 MeV; calculated σ(θ) to levels in 50Ca. DWBA, coupled-reaction-channel analyses.
doi: 10.1103/PhysRevC.14.1484
1976FE09 Nucl.Phys. A274, 262 (1976) Absolute Magnitude of Heavy-Ion Induced Two-Nucleon Transfer Reactions NUCLEAR REACTIONS 42,48Ca(16O, 18O), (16O, 14C), E=56 MeV; 48Ca(18O, 16O), E=50 MeV; 62Ni(18O, 16O), E=65 MeV; analyzed σ.
doi: 10.1016/0375-9474(76)90241-4
1976LO06 Phys.Rev. C13, 2579 (1976) Multistep Processes in the 19F(16O, 15N)20Ne Reaction NUCLEAR REACTIONS 19F(16O, 15N), E=68 MeV; calculated σ(θ). CCBA, DWBA.
doi: 10.1103/PhysRevC.13.2579
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