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NSR database version of April 24, 2024.

Search: Author = L.Lassen

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1997LA11      Phys.Rev. C55, 1900 (1997)

L.Lassen, P.von Neumann-Cosel, A.Oberstedt, G.Schrieder

Limiting Excitation Energy in Fusion-Evaporation Reactions ( Question )

NUCLEAR REACTIONS 40Ca(40Ar, X), E=5-30 MeV/nucleon; measured fusion-evaporation residue(n)-coin, neutron multiplicities, excitation energies per nucleon; deduced such studies cannot resolve hot nuclei limiting excitation energy related question.

doi: 10.1103/PhysRevC.55.1900
Citations: PlumX Metrics

1993GE08      Z.Phys. A347, 117 (1993)

R.Gentner, D.Bellm, L.Lassen, A.Oberstedt, A.Giorni, A.Lleres, J.-B.Viano, B.Cheynis, B.Chambon, D.Drain

Light-Particle Emission versus Evaporation Residue Formation in Collisions of 40Ar on (nat)Ca at 30 MeV/u

NUCLEAR REACTIONS 40Ca(40Ar, X), E=30 MeV/nucleon; measured (evaporation residue)n-, (evaporation residue)(light charged particle)-coin; deduced light particle multiplicities, missing mass interrelation. Quantal phase space model. Thick self-supporting Ca foil target.

doi: 10.1007/BF01284678
Citations: PlumX Metrics

1992GE04      Z.Phys. A343, 401 (1992)

R.Gentner, K.Keller, W.Lucking, L.Lassen

Intensity Interferometry with Neutrons from the Compound Nucleus 82Kr

NUCLEAR REACTIONS 64Ni(18O, xn), E=96 MeV; measured nn-correlation; deduced 82Kr average source T1/2.

doi: 10.1007/BF01289816
Citations: PlumX Metrics

1992KU05      Z.Phys. A342, 67 (1992)

S.Yu.Kun, R.Gentner, L.Lassen

Spin Correlation Function of Neutrons Emitted by a Compound Nucleus with High Angular Momentum

NUCLEAR REACTIONS 24Mg(32S, X), E=168 MeV; 48Ti(35Cl, X), E=180 MeV; 121Sb(40Ar, X), E=233 MeV; 64Ni(18O, X), E=96 MeV; calculated evaporated two-neutron spin correlation function, consecutive emission.

doi: 10.1007/BF01294490
Citations: PlumX Metrics

1992OB04      Nucl.Phys. A548, 525 (1992)

A.Oberstedt, P.von Neumann-Cosel, A.Richter, W.Rosch, G.Schrieder, D.Bellm, R.Gentner, K.Keller, L.Lassen, U.Seibert, D.Hilscher, M.Lehmann

Light-Particle Emission and Heavy-Residue Formation in the Fusion-Like Reactions 40Ar + 40Ca at 15 MeV/u and 28Si + 28Si at 20 MeV/u

NUCLEAR REACTIONS 40Ar(40Ca, X), E=15 MeV/nucleon; 28Si(28Si, X), E=20 MeV/nucleon; measured evaporation residue σ(A, Z, multiplicity, θ), light particle σ(E, θ); deduced light particle equilibrium, preequilibrium multiplicities. Discussed mass balance, residue formation. Quantal phase space model.

doi: 10.1016/0375-9474(92)90699-K
Citations: PlumX Metrics

1990RO06      Nucl.Phys. A509, 615 (1990)

W.Rosch, P.von Neumann-Cosel, A.Richter, G.Schrieder, R.Gentner, L.Lassen, H.W.Wilschut

The Role of Light-Particle Emission in Fusion-Like Reactions between 40Ar + 40Ca at 20 MeV/u

NUCLEAR REACTIONS 40Ar(40Ca, X), E=20 MeV/nucleon; measured evaporation residue-like fragments σ(mass, velocity, θ); deduced velocity, mass distributions. Statistical model.

doi: 10.1016/0375-9474(90)90094-3
Citations: PlumX Metrics

1989KE01      Z.Phys. A332, 87 (1989)

K.Keller, W.Lucking, R.Schreck, L.Lassen, H.Gemmeke

Angular Momentum Transfer in the Deepinelastic Reaction 245 MeV 32S + 64Ni from Neutron Angular Correlations

NUCLEAR REACTIONS 64Ni(32S, X), E=245 MeV; measured σ(fragment θ, θn); deduced fragment spin vs mass asymmetry. Sequential neutron emission from fragments.

1989RO07      Nucl.Phys. A496, 141 (1989)

W.Rosch, W.Cassing, H.Gemmeke, R.Gentner, K.Keller, L.Lassen, W.Lucking, A.Richter, R.Schreck, G.Schrieder

Preequilibrium Emission in Central Collisions of the Mass-Symmetric System 40Ar + 40Ca at 20 MeV/u

NUCLEAR REACTIONS 40Ca(40Ar, X), E=20 MeV/nucleon; measured σ(evaporation residue θ, light particle θ), σ(evaporation residue E, light particle E); deduced equilibrium, preequilibrium multiplicities.

doi: 10.1016/0375-9474(89)90220-0
Citations: PlumX Metrics

1987RO16      Fizika(Zagreb) 19, Supplement 1, 45 (1987)

W.Rosch, W.Cassing, H.Gemmeke, R.Gentner, K.Keller, L.Lassen, W.Lucking, A.Richter, R.Schreck, G.Schrieder

Preequilibrium Emission of Neutrons in Symmetric Heavy-Ion Collisions

NUCLEAR REACTIONS 40Ca(40Ar, X), E=20 MeV/nucleon; measured n(evaporation residue)-coin, σ(fragment θ, θn); deduced excess preequilibrium neutron yield.

1987RO18      Phys.Lett. 197B, 19 (1987)

W.Rosch, A.Richter, G.Schrieder, R.Gentner, K.Keller, L.Lassen, W.Lucking, R.Schreck, W.Cassing, H.Gemmeke

Preequilibrium Neutron Emission in Central Collisions of the System 40Ar + 40Ca at E/A = 20 MeV

NUCLEAR REACTIONS 40Ca(40Ar, xn), E=20 MeV/nucleon; measured σ(θ, En); deduced nonequilibrium component, neutron multiplicity, nuclear temperature.

doi: 10.1016/0370-2693(87)90333-9
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1986HO01      Phys.Rev. C33, 143 (1986)

E.Holub, D.Hilscher, G.Ingold, U.Jahnke, H.Orf, H.Rossner, W.P.Zank, W.U.Schroder, H.Gemmeke, K.Keller, L.Lassen, W.Lucking

Preequilibrium Neutron Emission in Fusion of 165Ho + 12C at 25 MeV per Nucleon

NUCLEAR REACTIONS 165Ho(12C, nX), E=300 MeV; measured σ(fragment θ, θn, En), neutron multiplicity; deduced neutron emission mechanism. Fermi-jet model.

doi: 10.1103/PhysRevC.33.143
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1985LU03      Z.Phys. A320, 585 (1985)

W.Lucking, R.Schreck, K.Keller, L.Lassen, A.Nagel, H.Gemmeke

Sequential Emission of Neutrons in the Reaction 16O + 64Ni at 7.5-12 MeV per Nucleon

NUCLEAR REACTIONS 64Ni(16O, nX), E=7.5-12 MeV/nucleon; measured n(fragment)-coin, neutron yield; deduced neutron emission mechanism.

1985SE13      Phys.Lett. 157B, 345 (1985)

B.Seligmann, J.Ernst, J.Kleinfeller, K.Keller, L.Lassen, W.Lucking, R.Schreck, H.Gemmeke

Limits of the Post-Form DWBA from Neutron-Proton Correlations Observed in the Breakup of 15 MeV Deuterons on Gold

NUCLEAR REACTIONS 197Au(d, np), E=15 MeV; measured pn-coin, σ(θp, θn, En); deduced post-form DWBA limitation neutron-proton correlation connection.

doi: 10.1016/0370-2693(85)90377-6
Citations: PlumX Metrics

1981GE01      Phys.Lett. B97, 213 (1980); see 1980Ge14

H.Gemmeke, P.Netter, A.Richter, L.Lassen, S.Lewandowski, W.Lucking, R.Schreck

Emission of Fast Neutrons in Deep-Inelastic Collisions of 16O on Ni

doi: 10.1016/0370-2693(80)90585-7
Citations: PlumX Metrics

1980CA13      Nucl.Phys. A342, 71 (1980)

R.Caplar, H.Gemmeke, L.Lassen, W.Weiss, D.Fick

Search for Highly Excited States of High Spatial Symmetry in 8Be

NUCLEAR REACTIONS 7Li(p, αt), E=4.5-12.0 MeV; 6Li(d, αt), E=1.2-8.0 MeV; measured σ(E, Et, Eα, θt, θα). 8Be resonances deduced 2α-breakup σ. Enriched targets, kinematically complete experiment.

doi: 10.1016/0375-9474(80)90507-2
Citations: PlumX Metrics

1980GE08      Phys.Lett. B96, 47 (1980)

H.Gemmeke, B.Deluigi, D.Scholz, L.Lassen

Continuum Breakup of 6Li

NUCLEAR REACTIONS 118Sn(6Li, dα), E=22.2 MeV; measured σ(θα, θd). 6Li deduced direct breakup. Semiclassical Coulomb model, Monte Carlo calculations. Kinematically complete experiment.

doi: 10.1016/0370-2693(80)90209-9
Citations: PlumX Metrics

1980GE14      Phys.Lett. B97, 213 (1980)

H.Gemmeke, P.Netter, A.Richter, L.Lassen, S.Lewandowski, W.Lucking, R.Schreck

Emission of Fast Neutrons in Deep-Inelastic Collisions of 16O on Ni

NUCLEAR REACTIONS 58,64Ni(16O, nX), E=6 MeV/Nucleon; measured nX(θ), σ(θn, θ(X)) deduced quasielastic, preequilibrium neutron emission in deep inelastic collisions.

doi: 10.1016/0370-2693(80)90585-7
Citations: PlumX Metrics

1978GE04      Z.Phys. A286, 73 (1978)

H.Gemmeke, B.Deluigi, L.Lassen, D.Scholz

Coulomb and Nuclear Excitation in the Sequential Break-up of 6Li

NUCLEAR REACTIONS 208Pb(6Li, 6Li), E=36-48 MeV; measured σ(E, θ). 208Pb(6Li, dα), E=36-48 MeV; measured σ(E, Ed, Eα, θ).

doi: 10.1007/BF01434615
Citations: PlumX Metrics

1978GE12      Phys.Lett. 79B, 202 (1978)

H.Gemmeke, L.Lassen, R.Caplar, W.Weiss, D.Fick

Search for Highly Excited States in 8Be

NUCLEAR REACTIONS 6Li(d, pt), 7Li(p, pt), E not given; measured σ(Ep, θ(p);Et, θt). 8Be deduced resonance structure near 21-28 MeV.

doi: 10.1016/0370-2693(78)90222-8
Citations: PlumX Metrics

1977SC25      Nucl.Phys. A288, 351 (1977)

D.Scholz, H.Gemmeke, L.Lassen, R.Ost, K.Bethge

Angular Correlations from 6Li Break-up Near the Coulomb Barrier of 118Sn and 208Pb

NUCLEAR REACTIONS 118Sn, 208Pb(6Li, αd), (6Li, αp), E=22.2, 23.0 MeV; measured absolute coin σ(Eα, θ1, θ2); deduced 6Li breakup pattern, reaction mechanisms. DWBA analysis of sequential α+d break-up. Enriched targets.

doi: 10.1016/0375-9474(77)90140-3
Citations: PlumX Metrics

1976GE20      Z.Phys. A279, 425 (1976)

H.Gemmeke, D.Baumgartner, A.Richter, L.Lassen

Competition between Neutron-Proton Rescattering and Deuteron Break-up in (d, np) Reactions

NUCLEAR REACTIONS 12C, 40Ca(d, np), E=5.4 MeV; measured σ(θ); deduced np rescattering, final-state-interaction contribution.

doi: 10.1007/BF01418139
Citations: PlumX Metrics

1974OS01      Z.Phys. 266, 369 (1974)

R.Ost, K.Bethge, H.Gemmeke, L.Lassen, D.Scholz

Three-Particle Correlations from 208Pb + 6Li

NUCLEAR REACTIONS 208Pb(6Li, 6Li'), (6Li, 5Li), (6Li, αp), (6Li, 2α), (6Li, αd), E=24-30 MeV; measured σ(E), deduced 3-particle correlations.

doi: 10.1007/BF01674831
Citations: PlumX Metrics

1968LA16      Nucl.Phys. A120, 645 (1968)

L.Lassen, W.Zahradnik, B.Zeitnitz

Proximity Scattering in the Sequential Decay 40Ca(d, n)41Sc*3.46(p)40Ca

NUCLEAR REACTIONS 40Ca(d, np), E=5.80 MeV; measured σ(Ep, θ(p), θ(n), phi(np)). 41Sc level deduced level-width.

doi: 10.1016/0375-9474(68)90470-3
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1967LA08      Phys.Letters 24B, 338 (1967)

L.Lassen, W.Zahradnik, B.Zeitnitz

Lifetime of the 3.46 MeV State of 41Sc by Proximity Scattering Measurements

NUCLEAR STRUCTURE 41Sc; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0370-2693(67)90239-0
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1966LA05      Phys.Letters 20, 516 (1966)

L.Lassen, T.Scholz, H.J.Unsold

Excited States of 48Ca and Angular Distributions in Proton Scattering

NUCLEAR STRUCTURE 48Ca; measured not abstracted; deduced nuclear properties.

doi: 10.1016/0031-9163(66)90981-4
Citations: PlumX Metrics

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