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NSR database version of April 27, 2024.

Search: Author = P.Sperr

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1982MA30      Phys.Rev. C26, 500 (1982)

W.Mayer, D.Pereira, K.E.Rehm, H.J.Scheerer, H.J.Korner, G.Korschinek, W.Mayer, P.Sperr, S.C.Pieper, R.D.Lawson

Strong Population of Excited 0⁺ States in Even Zr Isotopes Observed with the (¹⁴C, ¹⁶O) Reaction

NUCLEAR REACTIONS ^92,100Mo(¹⁴C, ¹⁴C), (¹⁴C, ¹⁴C'), (¹⁴C, ¹⁶O), ^94,96,98Mo(¹⁴C, ¹⁶O), E=71 MeV; measured σ(θ), σ(E(¹⁶O)); deduced optical model parameters. ^{90,92,94,96,98}Zr levels deduced spectroscopic amplitudes. DWBA analysis.

doi: 10.1103/PhysRevC.26.500
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Data from this article have been entered in the EXFOR database. For more information, access X4 datasetO1567.

1981RE07      Nucl.Phys. A366, 477 (1981)

K.E.Rehm, H.Essel, P.Sperr, K.Hartel, P.Kienle, H.J.Korner, R.E.Segel, W.Wagner

Dissipative Collisions of Heavy Ions at Energies close to the Coulomb Barrier

NUCLEAR REACTIONS ⁹⁴Zr, ¹¹⁰Pd, ¹⁴⁸Sm(²⁰⁸Pb, X), E=1180, 1280 MeV; measured σ(fragment E, mass, θ, Z); deduced relaxation times, transport coefficients, neutron-rich flow, large deformations. Deep inelastic reactions, Langevin transport theory.

doi: 10.1016/0375-9474(81)90524-8
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1980MA40      Phys.Rev. C22, 2449 (1980)

W.Mayer, K.E.Rehm, H.J.Korner, W.Mayer, E.Muller, I.Oelrich, H.J.Scheerer, R.E.Segel, P.Sperr, W.Wagner

Spectroscopy of Neutron-Rich Nuclei Produced in ¹⁴C Induced Reaction on ⁴⁸Ca

NUCLEAR REACTIONS ^42,48Ca(¹⁴C, ¹⁶O), (¹⁴C, ¹⁴N), ⁴⁸Ca(¹⁴C, ¹¹C), E=65, 75, 78 MeV; measured σ(E(¹⁶O)), σ(E(¹⁴N)), σ(E(¹¹C)). ⁴⁶Ar, ⁴⁸K, ⁵¹Ca deduced levels, mass excess. Enriched targets, Q3D spectrograph.

doi: 10.1103/PhysRevC.22.2449
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1980SP06      Z.Phys. A297, 355 (1980)

P.Sperr, H.J.Korner, W.A.Mayer, W.Wagner

Evaporation Residue and Total Reaction Cross Sections for the System ³⁶S + ⁴⁸Ca

NUCLEAR REACTIONS ⁴⁸Ca(³⁶S, X), E=117, 131, 147 MeV; measured σ(evaporation residue), σ(reaction).

doi: 10.1007/BF01422797
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1979ES02      Z.Phys. A289, 265 (1979)

H.Essel, K.Hartel, W.Henning, P.Kienle, H.J.Korner, K.E.Rehm, P.Sperr, W.Wagner, H.Spieler

Charge and Mass Transfer in the Reaction ¹³⁶Xe + ²⁰⁸Pb at Energies Close to the Coulomb Barrier

NUCLEAR REACTIONS ²⁰⁸Pb(¹³⁶Xe, ¹³⁶Xe), (¹³⁶Xe, ¹³⁶Xe'), E=800 MeV; measured σ(θ); ²⁰⁸Pb(¹³⁶Xe, X), E=800 MeV; measured fragment mass versus residual energy, Z versus A of mixed nuclide target, A=30-150; deduced integral σ.

doi: 10.1007/BF01415787
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1979ES03      Phys.Lett. 81B, 161 (1979)

H.Essel, K.Hartel, P.Kienle, H.J.Korner, K.E.Rehm, P.Sperr, W.Wagner

Neutron Rich Nucleon Flow in Central Heavy Ion Collisions

NUCLEAR REACTIONS ¹¹⁰Pd(²⁰⁸Pb, X), E=1.2 GeV; measured A, Z, E of fragments; deduced n to p ratio of nucleon flow in HI collisions.

doi: 10.1016/0370-2693(79)90512-4
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1979KO20      Phys.Rev. C20, 1305 (1979)

D.G.Kovar, D.F.Geesaman, T.H.Braid, Y.Eisen, W.Henning, T.R.Ophel, M.Paul, K.E.Rehm, S.J.Sanders, P.Sperr, J.P.Schiffer, S.L.Tabor, S.Vigdor, B.Zeidman, F.W.Prosser, Jr.

Systematics of Carbon- and Oxygen-Induced Fusion on Nuclei with 12 ≤ A ≤ 19

NUCLEAR REACTIONS ¹²C(¹²C, X), E(cm)=7.4-31.2 MeV; ¹²C(¹³C, X), E(cm)=7.6-24.9 MeV; ¹²C(¹⁴N, X), E(cm)=15.1-24.0 MeV; ¹²C(¹⁵N, X), E(cm)=8.9-26.7 MeV; ¹²C(¹⁶O, X), E(cm)=12.9-27.0 MeV; ¹²C(¹⁸O, X), E(cm)=11.9-28.0 MeV; ¹²C(¹⁹F, X), E(cm)=11.6-27.1 MeV; ¹⁶O(¹⁶O, X), E(cm)=16.9-36.0 MeV; measured fusion σ(E); deduced fusion barrier parameters.

doi: 10.1103/PhysRevC.20.1305
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1979RE06      Phys.Lett. 86B, 256 (1979)

K.E.Rehm, H.Essel, K.Hartel, P.Kienle, H.J.Korner, P.Sperr, W.Wagner

The Time Evolution of the Equilibration Process in ²⁰⁸Pb + ¹¹⁰Pb Collisions

NUCLEAR REACTIONS ¹¹⁰Pd(²⁰⁸Pb, X), E=1.2 GeV; measured σ(E, A, Z). Nonlinear time dependence explained by Langevin-Brownian motion theory.

doi: 10.1016/0370-2693(79)90832-3
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1979RE08      Z.Phys. A293, 119 (1979)

K.E.Rehm, H.Essel, K.Hartel, P.Kienle, H.J.Korner, R.E.Segel, P.Sperr, W.Wagner

Time Scales for Charge Equilibration in Heavy Ion Collisions

NUCLEAR REACTIONS ¹¹⁰Pd(²⁰⁸Pb, X), E=1180, 1280 MeV; measured fragment mass, charge, energy; deduced energy dependence of charge equilibration relaxation time. Langevin theory of brownian motion.

doi: 10.1007/BF01559753
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1979SP02      Z.Phys. A291, 179 (1979)

P.Sperr, H.Essel, H.J.Korner, K.E.Rehm

Fragmentation of the Total Cross Section in the Reaction ¹⁶O + ²⁰⁸Pb

NUCLEAR REACTIONS ²⁰⁸Pb(¹⁶O, X), E(cm)=84, 92 MeV; measured inelastic, transfer, fission σ; deduced reaction mechanism.

doi: 10.1007/BF01437999
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1979VI13      Phys.Rev. C20, 2147 (1979)

S.E.Vigdor, D.G.Kovar, P.Sperr, J.Mahoney, A.Menchaca-Rocha, C.Olmer, M.S.Zisman

Energy Dependence of the Fusion and Elastic Scattering of ¹⁶O + ⁴⁰Ca

NUCLEAR REACTIONS ⁴⁰Ca(¹⁶O, ¹⁶O), (¹⁶O, X), E=40-214 MeV; measured fusion σ(E), elastic σ(θ, E); deduced S-wave barrier parameters, optical model parameters, fusion mechanisms.

doi: 10.1103/PhysRevC.20.2147
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1978DE01      Z.Phys. A284, 237 (1978)

H.H.Deubler, K.Lekkas, P.Sperr, K.Dietrich

Kinetic Energy and Angular Distributions of Instantaneous Fission Fragments in a Classical Model

NUCLEAR REACTIONS U(Pb, F), E(cm)=750 MeV; calculated fragment (E, θ).

doi: 10.1007/BF01411334
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1978ES03      S.Afr.J.Phys. 1, 168 (1978)

H.Essel, K.Hartel, P.Kienle, H.J.Korner, K.E.Rehm, P.Sperr, W.Wagner

Neutron-Rich Nucleon Flow in Central Heavy-Ion Collisions

NUCLEAR REACTIONS ¹¹⁰Pd(²⁰⁸Pb, X), E=1.2 GeV; measured σ(fragment Z, A, θ); deduced n/p flow ratio for central collisions.

1978HE18      Phys.Rev. C18, 2780 (1978)

A.Hertz, H.Essel, H.J.Korner, K.E.Rehm, P.Sperr

Maximum Fusion Cross Section for the System ¹²C + ¹⁷O

NUCLEAR REACTIONS ¹²C(¹⁷O, X), E(cm)=14-33 MeV; measured σ(fusion).

doi: 10.1103/PhysRevC.18.2780
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1978KO01      Phys.Rev. C17, 83 (1978)

D.G.Kovar, W.Henning, B.Zeidman, Y.Eisen, J.R.Erskine, H.T.Fortune, T.R.Ophel, P.Sperr, S.E.Vigdor

¹⁶O + ⁴⁸Ca Reaction at 56 Mev. I. Transitions to Resolved Levels

NUCLEAR REACTIONS ⁴⁸Ca(¹⁶O, ¹⁶O), (¹⁶O, ¹⁶O'), (¹⁶O, ¹⁷O), (¹⁶O, ¹⁸O), (¹⁶O, ¹⁴N), ⁴⁸Ca(¹⁶O, ¹⁵N), (¹⁶O, ¹⁶N), (¹⁶O, ¹³C), (¹⁶O, ¹⁴C), (¹⁶O, ¹⁵C), (¹⁶O, ¹⁹O), ⁴⁸Ca(¹⁶O, ¹⁷N), (¹⁶O, ¹²C), (¹⁶O, ¹¹B), (¹⁶O, ¹²B), (¹⁶O, ¹³B), E=56 MeV; measured σ(θ); deduced optical model parameters. ^51,50Ti, ¹⁸O, ⁵⁰Sc, ⁵¹V, ⁴⁸Sc, ⁴⁹Ti levels deduced reaction population.

doi: 10.1103/PhysRevC.17.83
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1978SP04      Z.Phys. A287, 57 (1978)

P.Sperr, W.Wagner, H.Essel, K.Hartel, W.Henning, P.Kienle, H.J.Korner, K.E.Rehm, J.Weber

Search for Delayed Fission Products from Superheavy Nuclei in the Reaction ¹³⁶Xe + ²⁰⁸Pb

NUCLEAR REACTIONS ²⁰⁸Pb(¹³⁶Xe, X), E(cm)=470 MeV; measured upper limit production σ for superheavy elements Z=108-116, fission mean life.

doi: 10.1007/BF01408361
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1977EV01      Nucl.Phys. A275, 363 (1977)

D.Evers, C.Ley, E.Spindler, W.Assmann, K.Rudolph, P.Konrad, P.Sperr

The (³He, n) Reaction on ¹⁶O and ¹⁸O

NUCLEAR REACTIONS ¹⁶O(³He, n), E=15, 18, 21 MeV; ¹⁸O(³He, n), E=18 MeV; measured σ(θ, En). ^18,20Ne deduced levels, J, π. Natural ¹⁶O, enriched ¹⁸O targets.

doi: 10.1016/0375-9474(77)90458-4
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1977EV02      Z.Phys. A280, 287 (1977)

D.Evers, G.Denhofer, W.Assmann, A.Harasim, P.Konrad, C.Ley, K.Rudolph, P.Sperr

Investigation of High Spin States in ²³Na and ²³Mg and the ¹²C + ¹²C Resonance at E(c.m.) = 19.3 MeV

NUCLEAR REACTIONS ¹²C(¹²C, nγ), (¹²C, pγ), (¹²C, np), E=19.3 MeV; measured particle γ-coin, DSA. ²³Na, ²³Mg levels deduced T_1/2, J, π. ²³Mg deduced resonances, proton branching.

doi: 10.1007/BF01434357
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1976HI13      Nucl.Phys. A266, 253 (1976)

P.Hille, K.Rudolph, M.Hille, P.Sperr, W.Mannhart, H.Munzer, G.Gaul

Fusion Reaction of ³⁵Cl + ⁴⁸Ti at 104 MeV

NUCLEAR REACTIONS ⁴⁸Ti(³⁵Cl, X), E=104 MeV; measured total fusion σ(θ), mass distribution. Enriched target.

doi: 10.1016/0375-9474(76)90293-1
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1976SP01      Phys.Rev. C13, 447 (1976)

P.Sperr, W.Henning, J.R.Erskine

¹²C(¹⁶O, ¹²C)¹⁶O* Inelastic Scattering in the Region of the E(c.m.)=19.7 MeV Resonance

NUCLEAR REACTIONS ¹²C(¹⁶O, ¹²C), E=44.4-48.0 MeV; measured σ(E, θ). ¹⁶O levels deduced resonant behavior.

doi: 10.1103/PhysRevC.13.447
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1976SP03      Phys.Rev.Lett. 36, 405 (1976)

P.Sperr, S.Vigdor, Y.Eisen, W.Henning, D.G.Kovar, T.R.Ophel, B.Zeidman

Oscillations in the Excitation Function for Complete Fusion of ¹⁶O + ¹²C

NUCLEAR REACTIONS ¹²C(¹⁶O, X), E(cm)=13-27 MeV; measured total fusion σ(E).

doi: 10.1103/PhysRevLett.36.405
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1976SP07      Phys.Rev.Lett. 37, 321 (1976)

P.Sperr, T.H.Braid, Y.Eisen, D.G.Kovar, F.W.Prosser, Jr., J.P.Schiffer, S.L.Tabor, S.Vigdor

Fusion Cross Sections of Light Heavy-Ion Systems: Resonances and shell effects

NUCLEAR REACTIONS ¹²C(¹²C, X), (¹⁸O, X), (¹⁹F, X), E(cm)=6-32 MeV; measured fusion σ.

doi: 10.1103/PhysRevLett.37.321
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1975SP05      Phys.Lett. 57B, 438 (1975)

P.Sperr, D.Evers, A.Harasim, W.Assmann, P.Konrad, K.Rudolph, G.Denhoefer, C.Ley

The Neutron Decay of the Resonance in the ¹²C + ¹⁶O System at E(c.m.) = 19.7 MeV

NUCLEAR REACTIONS ¹²C(¹⁶O, n), E=19.39, 19.70, 20.6, 22.0, 22.6 MeV; measured σ(E, En, θ). ²⁸Si deduced resonances.

doi: 10.1016/0370-2693(75)90262-2
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1974EV02      Nucl.Phys. A230, 109 (1974)

D.Evers, W.Assmann, K.Rudolph, S.J.Skorka, P.Sperr

The (³He, n) Reaction on Even (f, p) Shell Nuclei at 15, 18 and 21 MeV (II)

NUCLEAR REACTIONS ^40,42,44,48Ca, ^46,48,50Ti, ^58,60Ni, ⁶⁴Zn, ^50,52,54Cr, ⁵⁴Fe(³He, n), E=15, 18, 21 MeV; measured σ(θ, En). ^42,44,46,50Ti, ^48,50,52Cr, ^60,62Zn, ⁶⁶Ge, ^52,54,56Fe, ⁵⁶Ni deduced levels, J, π. Enriched targets.

doi: 10.1016/0375-9474(74)90533-8
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1974HI06      Nucl.Phys. A232, 157 (1974)

P.Hille, P.Sperr, M.Hille, K.Rudolph, W.Assmann, D.Evers

Spin Dependence of the Nuclear Level Density from Angular Distributions of (α, n) Reactions

NUCLEAR REACTIONS ⁴⁶Ti, ^54,56Fe, ^58,60,62Ni, ⁹⁰Zr, ⁹³Nb, ⁹²Mo, ¹¹⁵In(α, n), E approx 15.3 MeV; ⁵⁹Co(α, n), E=14.0 MeV; measured σ(En, θ). ⁴⁹Cr, ^57,59Ni, ⁶²Cu, ^61,63,65Zn, ⁹³Mo, ⁹⁶Tc, ⁹⁵Ru, ¹¹⁸Sb deduced spin cut-off factors. Isotopically separated, natural targets.

doi: 10.1016/0375-9474(74)90650-2
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1974SP03      Phys.Lett. 49B, 345 (1974)

P.Sperr, D.Evers, K.Rudolph, W.Assmann, E.Spindler, P.Konrad, G.Denhofer

Study of the ¹²C(¹²C, n)²³Mg Reaction Around the Resonance at E(cm) = 19.3 MeV

NUCLEAR REACTIONS ¹²C(¹²C, n), E(cm)=19.3 MeV; measured σ(Eγ, En, θ(n)), nγ-coin. ²³Mg deduced levels. ²⁴Mg deduced resonance.

doi: 10.1016/0370-2693(74)90177-4
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1972EV02      Nucl.Phys. A198, 268 (1972)

D.Evers, W.Assmann, K.Rudolph, S.J.Skorka, P.Sperr

The (³He, n) Reaction on Even (f, p) Shell Nuclei at 18 and 21 MeV (I)

NUCLEAR REACTIONS ^50,52,54Cr, ^54,56,58Fe(³He, n), E(³He)=18, 21 MeV; measured σ(θ, En). ^52,54,56Fe, ^56,58,60Ni deduced levels, J, π. Enriched targets.

doi: 10.1016/0375-9474(72)90784-1
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