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NSR database version of April 26, 2024.

Search: Author = P.J.Siemens

Found 15 matches.

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1994XI02      Nucl.Phys. A578, 493 (1994)

L.Xia, P.J.Siemens, M.Soyeur

Self-Consistent Couplings of Pions and Δ-Hole States in Nuclear Matter

doi: 10.1016/0375-9474(94)90757-9
Citations: PlumX Metrics

1988AL03      Nucl.Phys. A476, 213 (1988)

R.Alkofer, H.Hofmann, P.J.Siemens

On the Damping of Giant Resonances and the Independent Propagation of Particles and Holes

NUCLEAR STRUCTURE ²⁰⁸Pb; calculated giant resonance collective response function widths.

doi: 10.1016/0375-9474(88)90481-2
Citations: PlumX Metrics

1988WH02      Ann.Phys.(New York) 187, 198 (1988)

G.D.White, K.T.R.Davies, P.J.Siemens

Studies of the Nuclear Single-Particle Response Function in a Simple Model

NUCLEAR STRUCTURE ¹⁶O; calculated single particle response functions.

doi: 10.1016/0003-4916(88)90286-2
Citations: PlumX Metrics

1985SH09      Phys.Rev. C31, 2291 (1985)

S.Shlomo, P.J.Siemens

Isoscalar Giant Monopole in a Macroscopic-Microscopic Approach

NUCLEAR STRUCTURE ¹⁶O, ⁴⁰Ca, ²⁰⁸Pb; calculated isoscalar giant monopole resonances; deduced nuclear incompressibility. Macroscopic-microscopic approach.

doi: 10.1103/PhysRevC.31.2291
Citations: PlumX Metrics

1985SI14      Nucl.Phys. A441, 410 (1985)

P.J.Siemens, A.S.Jensen, H.Hofmann

Damping of Nuclear Collective and Single-Particle Motion

NUCLEAR STRUCTURE ²³⁸U; calculated frequency dependent collective quadrupole response function imaginary part.

doi: 10.1016/0375-9474(85)90153-8
Citations: PlumX Metrics

1984HA38      Phys.Lett. 144B, 155 (1984)

K.Hagel, P.J.Siemens

Level Densities in Mean-Field Theory Versus the Independent Particle Model

NUCLEAR STRUCTURE ⁴⁰Ca; calculated level densities; deduced level density parameter model dependence. Mean field theory, independent particle model.

doi: 10.1016/0370-2693(84)91793-3
Citations: PlumX Metrics

1984PA03      Phys.Rev.Lett. 52, 496 (1984)

A.D.Panagiotou, M.W.Curtin, H.Toki, D.K.Scott, P.J.Siemens

Experimental Evidence for a Liquid-Gas Phase Transition in Nuclear Systems

NUCLEAR REACTIONS Ag(p, X), E=0.21-4.9 GeV; Xe, Kr(p, X), E=80-350 GeV; U(p, X), E=4.9, 5.5 MeV; ¹⁹⁷Au, Ag(¹²C, X), E=0.18, 0.36 GeV; analyzed fragment distribution; deduced liquid to gas phase transition critical temperature. Condensation theory.

doi: 10.1103/PhysRevLett.52.496
Citations: PlumX Metrics

1983JE07      Phys.Scr. T5, 186 (1983)

A.S.Jensen, J.Leffers, H.Hofmann, P.J.Siemens

Fission and Pairing Degrees of Freedom in Collective Transport Theory

NUCLEAR STRUCTURE ²³⁸U; calculated shell, collective model response functions at fission saddle point; deduced equilibrium deformation quadrupole, hexadecapole vibrations, (β), giant quadrupole vibrations. Collective transport theory, pairing degrees of freedom.

doi: 10.1088/0031-8949/1983/T5/036
Citations: PlumX Metrics

1982IZ01      Phys.Lett. 112B, 315 (1982)

T.Izumoto, M.Ichimura, C.M.Ko, P.J.Siemens

Pionic Modes of Excitation in Continuum from the (p, n) Reaction

NUCLEAR REACTIONS ⁹⁰Zr(p, n), E=200 MeV; calculated σ(θ); deduced opalescence effect vs excitation. DWBA, particle-hole, isobar-hole excitations, short range correlations.

doi: 10.1016/0370-2693(82)91058-9
Citations: PlumX Metrics

1982JE02      Phys.Lett. 117B, 5 (1982)

A.S.Jensen, J.Leffers, K.Reese, H.Hofmann, P.J.Siemens

Quadrupole Vibrations of ²³⁸U in Collective Transport Theory

NUCLEAR STRUCTURE ²³⁸U; calculated GQR, β-vibration resonance, Γ. Collective transport theory.

doi: 10.1016/0370-2693(82)90862-0
Citations: PlumX Metrics

1982JE03      Phys.Lett. 117B, 157 (1982)

A.S.Jensen, J.Leffers, K.Reese, P.J.Siemens

Pairing in Collective Transport Theory

NUCLEAR STRUCTURE ²³⁸U; calculated ground state, second fission barrier collective pairing response strength functions. Transport theory.

doi: 10.1016/0370-2693(82)90537-8
Citations: PlumX Metrics

1976SI17      Phys.Lett. 65B, 5 (1976)

B.C.Sinha, P.J.Siemens

Damping of Shape Oscillations and Relative Motion in Heavy Ion Reactions

NUCLEAR REACTIONS ²⁰⁸Pb(²⁰⁸Pb, X), (⁴⁰Ca, X); calculated relative motion, damping oscillations.

doi: 10.1016/0370-2693(76)90520-7
Citations: PlumX Metrics

1972SI27      Phys.Lett. 41B, 16 (1972)

P.J.Siemens, A.Sobiczewski

Asymptotic Expansion for Eigenvalue Density

doi: 10.1016/0370-2693(72)90355-3
Citations: PlumX Metrics

1972SI45      Phys.Lett. 42B, 389 (1972)

P.J.Siemens, F.D.Becchetti

Particle-Wave Ambiguities in the Interpretation of Heavy-Ion Reactions

doi: 10.1016/0370-2693(72)90088-3
Citations: PlumX Metrics

1967SI20      Phys.Rev.Lett. 18, 704 (1967)

P.J.Siemens, H.A.Bethe

Shape of Heavy Nuclei

NUCLEAR STRUCTURE Z=106, 111, 116; calculated energies of spheroids, binding energies.

doi: 10.1103/PhysRevLett.18.704
Citations: PlumX Metrics