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NSR database version of May 24, 2024.

Search: Author = S.Krewald

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2016TS01      Phys.Rev. C 94, 034306 (2016)

V.Tselyaev, N.Lyutorovich, J.Speth, S.Krewald, P.-G.Reinhard

Application of an extended random-phase approximation to giant resonances in light-, medium-, and heavy-mass nuclei

NUCLEAR REACTIONS 16O, 40,48Ca, 132Sn, 208Pb(γ, X), E*=0-40 MeV; calculated photoabsorption cross sections, fractions of EWSR, energies, widths and other characteristics of giant-monopole resonances (GMR), giant-dipole resonances (GDR), and giant-quadrupole resonances (GQR) using extended random phase approximation (RPA) with time-blocking approximation (TBA). Comparison with experimental data.

doi: 10.1103/PhysRevC.94.034306
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2015AC01      Phys.Rev. C 91, 034620 (2015)

O.Achakovskiy, A.Avdeenkov, S.Goriely, S.Kamerdzhiev, S.Krewald

Impact of phonon coupling on the photon strength function

NUCLEAR STRUCTURE 110,112,116,118,120,122,124,132,136Sn, 58,62,68,72Ni; calculated E1 strength function, average radiative width. QRPA, quasiparticle time blocking approximation. Comparison with experimental data.

NUCLEAR REACTIONS 115,119Sn(n, γ), E=0.007-10 MeV; calculated σ(E).QRPA, Quasiparticle time blocking approximation. Comparison with experimental data.

doi: 10.1103/PhysRevC.91.034620
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2014RO13      Eur.Phys.J. A 50, 101 (2014), Erratum Eur.Phys.J. A 51, 63 (2015)

D.Ronchen, M.Doring, F.Huang, H.Haberzettl, J.Haidenbauer, C.Hanhart, S.Krewald, U.-G.Meissner, K.Nakayama

Photocouplings at the pole from pion photoproduction

NUCLEAR REACTIONS 1H(γ, π0), (γ, π+), E≈1.08-2.35 GeV; calculated, analyzed σ, σ(θ), beam asymmetry, target asymmetry using semi-phenomenological approach with dynamical CC model; deduced photocoupling resonance parameters from the fit to the data.

doi: 10.1140/epja/i2014-14101-3
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2014SA54      Phys.Atomic Nuclei 77, 1033 (2014)

E.E.Saperstein, O.I.Achakovskiy, S.P.Kamerdzhiev, S.Krewald, J.Speth, S.V.Tolokonnikov

Phonon coupling effects in magnetic moments of magic and semimagic nuclei

NUCLEAR STRUCTURE 188,190,192,194,196,198,200,202,204,206,207,208,209Pb, 187,189,191,193,195,197,199,201,203,205,207Tl, 209Bi, 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134Sn, 105,107,109,111,113,115,117,119,121,123,125,127In, 115,117,119,121,123,125,127,129,131,133Sb; calculated energy levels, J, π, magnetic moments, B(E2). Comparison with experimental data.

doi: 10.1134/S1063778814080122
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2014SP02      Nucl.Phys. A928, 17 (2014)

J.Speth, S.Krewald, F.Grummer, P.-G.Reinhard, N.Lyutorovich, V.Tselyaev

Landau-Migdal vs. Skyrme

NUCLEAR STRUCTURE 208Pb; calculated E0, E1, E2 excitation γ strength functions using RPA with approximation for Landau-Migdal interaction and usin g full Skyrme interaction.

doi: 10.1016/j.nuclphysa.2014.03.023
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2013RO13      Eur.Phys.J. A 49, 44 (2013)

D.Ronchen, M.Doring, F.Huang, H.Haberzettl, J.Haidenbauer, C.Hanhart, S.Krewald, U.-G.Meissner, K.Nakayama

Coupled-channel dynamics in the reactions πN → πN, ηN, KΛ, KΣ

doi: 10.1140/epja/i2013-13044-5
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2013SA42      Europhys.Lett. 103, 42001 (2013)

E.E.Saperstein, S.Kamerdzhiev, S.Krewald, J.Speth, S.V.Tolokonnikov

A model for phonon coupling contributions to electromagnetic moments of odd spherical nuclei

NUCLEAR STRUCTURE 187,188,189,190,191,192,193,194,195,196,197,198,199,200,201,202,203,204,205,206,207,208,209,210,211Tl, 99,100,101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131In, 101,102,103,104,105,106,107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123,124,125,126,127,128,129,130,131,132,133Sb; calculated magnetic moments. Theory of Finite Fermi Systems (TFFS), comparison with experimental data.

doi: 10.1209/0295-5075/103/42001
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2012HU02      Phys.Rev. C 85, 054003 (2012)

F.Huang, M.Doring, H.Haberzettl, J.Haidenbauer, C.Hanhart, S.Krewald, U.-G.Meissner, K.Nakayama

Pion photoproduction in a dynamical coupled-channels model

doi: 10.1103/PhysRevC.85.054003
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2012LY02      Phys.Rev.Lett. 109, 092502 (2012)

N.Lyutorovich, V.I.Tselyaev, J.Speth, S.Krewald, F.Grummer, P.-G.Reinhard

Self-Consistent Calculations of the Electric Giant Dipole Resonances in Light and Heavy Nuclei

NUCLEAR REACTIONS 16O, 40Ca, 208Pb(γ, X), E<40 MeV; calculated σ, electric giant dipole resonances. Skyrme interaction, comparison with available data.

doi: 10.1103/PhysRevLett.109.092502
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2012TO07      Eur.Phys.J. A 48, 70 (2012)

S.V.Tolokonnikov, S.Kamerdzhiev, S.Krewald, E.E.Saperstein, D.Voitenkov

Quadrupole moments of spherical semi-magic nuclei within the self-consistent Theory of Finite Fermi Systems

NUCLEAR MOMENTS 39,41Ca, 85,87Kr, 87,89Sr, 89,91Zr, 101,103,105,107,109,111,113,115,117,119,121,123,125,127,129,131Sn, 135,137Xe, 137,139Ba, 141,143Nd, 143,145Sm, 147Gd, 197,199,201,205,211Pb, 39K, 41Sc, 87Rb, 105,107,109,111,113,115,117,119,121,123,125,127In, 115,119,121,123Sb, 137Cs, 139La, 141Pr, 145Eu, 205Tl, 203,205,207,209,213Bi; calculated quadrupole moments using self-consistent Finite Fermi Systems with two different functionals. Compared with data.

doi: 10.1140/epja/i2012-12070-1
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2012VO03      Phys.Rev. C 85, 054319 (2012)

D.Voitenkov, S.Kamerdzhiev, S.Krewald, E.E.Saperstein, S.V.Tolokonnikov

Self-consistent calculations of quadrupole moments of the first 2+ states in Sn and Pb isotopes

NUCLEAR MOMENTS 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134Sn, 190,192,194,196,198,200,202,204,206,208Pb; calculated static quadrupole moments of first 2+ states. Ground state correlations. Dependence of quadrupole moment on neutron access. Self-consistent calculations based on quasiparticle random-phase approximation (QRPA) and energy density functionals. Comparison with experimental data.

doi: 10.1103/PhysRevC.85.054319
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2011AV04      Phys.Rev. C 83, 064316 (2011)

A.Avdeenkov, S.Goriely, S.Kamerdzhiev, S.Krewald

Self-consistent calculations of the strength function and radiative neutron capture cross section for stable and unstable tin isotopes

NUCLEAR STRUCTURE 100,110,112,114,120,124,132,136,142,150,156,166,176Sn; calculated E1 strength functions, integral characteristics of GDR versus A, giant-dipole and pygmy-dipole resonances (GDR, PDR), neutron and proton transitional densities using self-consistent microscopic theory as well as standard quasiparticle random phase approximation (QRPA, QTBA). Comparison with experimental data. Discussed properties of GDR and PDR.

NUCLEAR REACTIONS 123,131,149Sn(n, γ), E=0.001-10 MeV; calculated neutron capture cross sections obtained with E1 strength functions calculated within the QRPA, QTBA, and Kopecky-Uhl approaches.

doi: 10.1103/PhysRevC.83.064316
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2011CE05      Phys.Rev. C 84, 015205 (2011)

S.Ceci, M.Doring, C.Hanhart, S.Krewald, U.-G.Meissner, A.Svarc

Relevance of complex branch points for partial wave analysis

doi: 10.1103/PhysRevC.84.015205
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2011DO02      Nucl.Phys. A851, 58 (2011)

M.Doring, C.Hanhart, F.Huang, S.Krewald, U.-G.Meissner, D.Ronchen

The reaction π+p → K+ Σ+ in a unitary coupled-channels model

doi: 10.1016/j.nuclphysa.2010.12.010
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2011TO13      Phys.Rev. C 84, 064324 (2011)

S.V.Tolokonnikov, S.Kamerdzhiev, D.Voitenkov, S.Krewald, E.E.Saperstein

Effects of density dependence of the effective pairing interaction on the first 2+ excitations and quadrupole moments of odd nuclei

NUCLEAR STRUCTURE 182,184,186,188,190,192,194,196,198,200,202,204,206,208,210,212,214Pb, 102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134Sn; calculated level energies, B(E2) of first 2+ states, diagonal matrix elements of effective proton quadrupole field. 200Pb, 118Sn; calculated proton and neutron transition densities. 204Pb, 116Sn; calculated static proton and neutron effective fields. 105,107,109,111,113,115,117,119,121,123,125,127In, 109,111,113,115,117,119,121, 123,125Sn, 115,117,119,121,123Sb, 205Tl, 191,193,195,197,199,201,203,205,209Pb, 203,205,209Bi; calculated quadrupole moments. Self-consistent theory of finite Fermi systems based on energy density functionals. Comparison with experimental data.

doi: 10.1103/PhysRevC.84.064324
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2010HU12      Eur.Phys.J. A 44, 81 (2010)

F.Huang, A.Sibirtsev, J.Haidenbauer, S.Krewald, U.-G.Meissner

Backward pion-nucleon scattering

doi: 10.1140/epja/i2010-10930-2
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2010SI16      Eur.Phys.J. A 44, 169 (2010)

A.Sibirtsev, J.Haidenbauer, S.Krewald, U.-G.Meissner

Primakoff effect in η -photoproduction off protons

doi: 10.1140/epja/i2010-10961-7
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2010SI28      Eur.Phys.J. A 45, 357 (2010)

A.Sibirtsev, J.Haidenbauer, H.-W.Hammer, S.Krewald, U.-G.Meissner

Proton-proton scattering above 3 GeV/c

doi: 10.1140/epja/i2010-11014-1
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2010SI29      Eur.Phys.J. A 46, 359 (2010)

A.Sibirtsev, J.Haidenbauer, S.Krewald, U.-G.Meissner

Analysis of recent η photoproduction data

doi: 10.1140/epja/i2010-11049-2
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2009DO15      Nucl.Phys. A829, 170 (2009)

M.Doring, C.Hanhart, F.Huang, S.Krewald, U.-G.Meissner

Analytic properties of the scattering amplitude and resonances parameters in a meson exchange model

doi: 10.1016/j.nuclphysa.2009.08.010
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2009HU08      Eur.Phys.J. A 40, 77 (2009)

F.Huang, A.Sibirtsev, S.Krewald, C.Hanhart, J.Haidenbauer, U.-G.Meissner

Pion-nucleon charge exchange amplitudes above 2 GeV

doi: 10.1140/epja/i2008-10728-9
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2009KR04      Int.J.Mod.Phys. E18, 1425 (2009)

S.Krewald, J.Speth

PYGMY dipole resonances

doi: 10.1142/S0218301309013750
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2009SI13      Eur.Phys.J. A 40, 65 (2009)

A.Sibirtsev, J.Haidenbauer, F.Huang, S.Krewald, U.-G.Meissner

Backward pion photoproduction

doi: 10.1140/epja/i2008-10743-x
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2009SI29      Eur.Phys.J. A 41, 71 (2009)

A.Sibirtsev, J.Haidenbauer, S.Krewald, U.-G.Meissner, A.W.Thomas

Neutral pion photoproduction at high energies

doi: 10.1140/epja/i2009-10771-0
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2009TS03      Phys.Rev. C 79, 034309 (2009)

V.Tselyaev, J.Speth, S.Krewald, E.Litvinova, S.Kamerdzhiev, N.Lyutorovich, A.Avdeenkov, F.Grummer

Description of the giant monopole resonance in the even-A 112-124Sn isotopes within a microscopic model including quasiparticle-phonon coupling

NUCLEAR STRUCTURE 90Zr, 110,112,114,116,118,120,122,124,132Sn, 144Sm, 208Pb; calculated strength distribution, mean energies and widths of isoscalar giant-monopole resonances (ISGMR) using two microscopic models: quasiparticle random phase approximation (QRPA) and quasiparticle time blocking approximation (QTBA) with self-consistence scheme based on Hartree-Fock+Bardeen-Cooper-Schrieffer (HF+BCS) approximation and Skyrme energy functional. Comparison with experimental data.

doi: 10.1103/PhysRevC.79.034309
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2008LY03      Eur.Phys.J. A 37, 381 (2008)

N.Lyutorovich, J.Speth, A.Avdeenkov, F.Grummer, S.Kamerdzhiev, S.Krewald, V.I.Tselyaev

Self-consistent calculations within the Green's function method including particle-phonon coupling and the single-particle continuum

NUCLEAR STRUCTURE 132Sn, 208Pb; calculated levels, J, π, B(E1), GDR, photoabsorption σ, isoscalar/isovector quadrupole strength distributions using a quasiparticle time blocking approximation. Comparison with RPA and data.

doi: 10.1140/epja/i2008-10638-x
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2007SI03      Eur.Phys.J. A 31, 221 (2007)

A.Sibirtsev, J.Haidenbauer, S.Krewald, U.-G.Meissner, A.W.Thomas

K(K-bar) photoproduction from protons

NUCLEAR REACTIONS 1H(γ, K+K-), E=1.8-3.8 GeV; analyzed data; deduced contribution from Drell mechanism, possible hyperon resonance, other reaction mechanism features.

doi: 10.1140/epja/i2006-10216-4
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2007SI31      Eur.Phys.J. A 34, 49 (2007)

A.Sibirtsev, J.Haidenbauer, S.Krewald, T.-S.H.Lee, U.-G.Meissner, A.W.Thomas

Regge approach to charged pion photoproduction at invariant energies above 2 GeV

doi: 10..1140/epja/i2007-10482-6
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2007TE05      Phys.Lett. B 647, 104 (2007)

G.Tertychny, V.Tselyaev, S.Kamerdzhiev, F.Grummer, S.Krewald, J.Speth, A.Avdeenkov, E.Litvinova

Microscopic description of the low lying and high lying electric dipole strength in stable Ca isotopes

NUCLEAR STRUCTURE 40,44,48Ca; calculated B(E1), electric dipole strength distribution, GDR. Extended theory of finite Fermi systems.

doi: 10.1016/j.physletb.2007.01.069
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2007TE08      Nucl.Phys. A788, 159c (2007)

G.Tertychny, V.Tselyaev, S.Kamerdzhiev, F.Grummer, S.Krewald, J.Speth, E.Litvinova, A.Avdeenkov

Pygmy dipole resonance in stable Ca isotopes

NUCLEAR STRUCTURE 40,44,48Ca; calculated B(E1), electric dipole strength distribution, transition densities. Extended theory of finite Fermi systems using RPA. Comparison with data.

doi: 10.1016/j.nuclphysa.2007.01.077
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2007TS01      Phys.Rev. C 75, 014315 (2007)

V.Tselyaev, J.Speth, F.Grummer, S.Krewald, A.Avdeenkov, E.Litvinova, G.Tertychny

Extended theory of finite Fermi systems: Application to the collective and noncollective E1 strength in 208Pb

NUCLEAR STRUCTURE 208Pb; calculated levels, J, π, E1 strength distribution, transition densities. Extended theory of finite Fermi systems.

doi: 10.1103/PhysRevC.75.014315
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2007VI01      Int.J.Mod.Phys. E16, 249 (2007)

X.Vinas, V.I.Tselyaev, V.B.Soubbotin, S.Krewald

Quasilocal density functional theory for nuclei including pairing correlations

NUCLEAR STRUCTURE 16O, 40,48Ca, 90Zr, 132Sn, 208Pb; calculated binding energies, radii. 198,200,202,204,206,210,212Pb; calculated binding energies. 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132Sn; calculated pair gap energies. Density functional theory.

doi: 10.1142/S0218301307005697
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2006HA43      Phys.Rev. C 74, 045202 (2006)

H.Haberzettl, K.Nakayama, S.Krewald

Gauge-invariant approach to meson photoproduction including the final-state interaction

NUCLEAR REACTIONS 1H(γ, π0), E=140-400 MeV; calculated σ. 1H(γ, π0), (γ, π+), 1n(γ, π-), E=180, 220, 340, 390 MeV; calculated σ(θ). Gauge-invariant approach, comparison with data.

doi: 10.1103/PhysRevC.74.045202
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2006KR11      Phys.Rev.C 74, 064310 (2006)

S.Krewald, V.B.Soubbotin, V.I.Tselyaev, X.Vinas

Density matrix functional theory that includes pairing correlations

NUCLEAR STRUCTURE 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132Sn; calculated ground-state energies, two-neutron separation energies, related features. Quasilocal density matrix functional theory with pairing correlations.

doi: 10.1103/PhysRevC.74.064310
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2006SA29      Phys.Atomic Nuclei 69, 1119 (2006)

P.Saviankou, F.Grummer, E.Epelbaum, S.Krewald, U.-G.Meissner

Effective Field Theory Approach to Nuclear Matter

NUCLEAR STRUCTURE 8,10,12,14,16,18,20,22C, 12,14,16,18,20,22,24,26O, 16,18,20,22,24,26,28,30,32Ne, 20,22,24,26,28,30,32,34,36Mg; calculated binding energies, radii. Effective field theory approach.

doi: 10.1134/S1063778806070040
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2006SC15      Eur.Phys.J. A 28, 107 (2006)

S.Schneider, S.Krewald, Ulf-G.Meissner

The reaction πN → ππN in a meson-exchange approach

NUCLEAR REACTIONS 1H(π+, 2π+), (π+, π+π0), (π-, π-π0), (π-, 2π0), E=150-450 MeV; calculated σ, resonance effects. 1H(π+, 2π+), E=223-305 MeV; calculated σ(θ). Meson exchange model, comparisons with data.

doi: 10.1140/epja/i2006-10030-0
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2006SI15      Eur.Phys.J. A 27, 269 (2006)

A.Sibirtsev, J.Haidenbauer, H.-W.Hammer, S.Krewald

Resonances and final-state interactions in the reaction pp → pK+Λ

NUCLEAR REACTIONS 1H(p, pK+X), E=high; analysed Λ hyperon production σ, partial scattering amplitudes, invariant mass spectra, angular correlation effects and proton-hyperon final state interaction.

doi: 10.1140/epja/i2005-10268-x
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2006SI32      J.Phys.(London) G32, R395 (2006)

A.Sibirtsev, J.Haidenbauer, S.Krewald, Ulf.-G.Meissner

Kaon-deuteron scattering at low energies

NUCLEAR REACTIONS 2H(K+, K+), (K+, K+n), (K+, K0p), E at 252-790 MeV/c; 1H(K+, K+), E at 434-689 MeV/c; 1n(K+, K+), E at 434-780 MeV/c; analyzed σ(θ). Single-scattering impulse approximation.

doi: 10.1088/0954-3899/32/11/R02
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2006VI04      Phys.Atomic Nuclei 69, 1207 (2006)

X.Vinas, V.I.Tselyaev, S.Krewald, V.B.Soubbotin

Quasilocal Density Functional Theory in Nuclei and Its Extension to Include Pairing Correlations

NUCLEAR STRUCTURE 16O, 40,48Ca, 90Zr, 132Sn, 208Pb; calculated binding energies, radii, neutron and proton separation energies. Density functional theory with pairing correlations.

doi: 10.1134/S1063778806070180
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2006ZY01      Phys.Rev.Lett. 96, 012002 (2006)

I.Zychor, V.Koptev, M.Buscher, A.Dzyuba, I.Keshelashvili, V.Kleber, H.R.Koch, S.Krewald, Y.Maeda, S.Mikirtichyants, M.Nekipelov, H.Stroher, C.Wilkin

Evidence for an Excited Hyperon State in pp → pK+Y0

NUCLEAR REACTIONS 1H(p, pK+X), E at 3.65 GeV/c; measured missing mass spectra; deduced possible neutral hyperon resonance.

doi: 10.1103/PhysRevLett.96.012002
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2005GR17      Eur.Phys.J. A 25, 159 (2005)

V.Yu.Grishina, L.A.Kondratyuk, A.Sibirtsev, M.Buscher, S.Krewald, U.-G.Meissner, F.P.Sassen

The K-α scattering length and the reaction dd → α K+K-

NUCLEAR REACTIONS 2H(d, K+K-), E ≈ threshold; calculated final state interaction enhancement factor, invariant mass distribution. Multiple scattering approach.

doi: 10.1140/epja/i2005-10089-y
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2005SI01      Eur.Phys.J. A 23, 491 (2005)

A.Sibirtsev, J.Haidenbauer, S.Krewald, Ulf-G.Meissner

Analysis of Θ+ production in K+-Xe collisions

NUCLEAR REACTIONS Xe(K+, K0p), E at 400-550 MeV/c; analyzed outgoing particles effective mass spectra, resonance contributions. Meson-exchange model.

doi: 10.1140/epja/i2004-10094-8
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2005ZY01      Nucl.Phys. A755, 403c (2005)

I.Zychor, V.Koptev, M.Buscher, A.Dzyuba, I.Keshelashvili, V.Kleber, R.Koch, S.Krewald, Y.Maeda, S.Mikirtichyants, M.Nekipelov, H.Stroher, C.Wilkin

Indication of an excited hyperon state in pp collisions with ANKE at COSY-Julich

NUCLEAR REACTIONS 1H(p, K+X), E at 3.65 GeV/c; measured missing mass spectra; deduced hyperon resonance.

doi: 10.1016/j.nuclphysa.2005.03.045
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2004SI29      Phys.Lett. B 601, 132 (2004)

A.Sibirtsev, M.Buscher, V.Yu.Grishina, C.Hanhart, L.A.Kondratyuk, S.Krewald, U.-G.Meissner

Determination of the (K-bar)0d scattering length from the reaction pp → d(K-bar)0)K+

NUCLEAR REACTIONS 1H(p, K+K0), E=2.65 GeV; analyzed mass spectra; deduced scattering lengths.

doi: 10.1016/j.physletb.2004.09.044
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2003SA56      Eur.Phys.J. A 18, 197 (2003)

F.P.Sassen, S.Krewald, J.Speth

t-dependence of pion production in π-p → π0π0n

NUCLEAR REACTIONS 1H(π-, 2π0), E not given; analyzed data; deduced form factors, possible role of kaon-antikaon molecular state.

doi: 10.1140/epja/i2002-10306-3
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2003SC37      Eur.Phys.J. A 18, 421 (2003)

S.Schneider, A.Sibirtsev, Ch.Elster, J.Haidenbauer, S.Krewald, J.Speth

ηN final-state interaction in incoherent photoproduction of η-mesons from the deuteron

NUCLEAR REACTIONS 2H(γ, X), E=630-681 MeV; calculated η-meson production σ, σ(θ), final-state interaction effects.

doi: 10.1140/epja/i2002-10250-2
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2003SI04      Phys.Rev. C 67, 055201 (2003)

A.Sibirtsev, K.Tsushima, S.Krewald

Systematic Regge theory analysis of ω photoproduction

NUCLEAR REACTIONS 1H(γ, X), E ≈ 1-130 GeV; analyzed ω meson production σ, σ(E, θ); deduced Pomeron exchange contribution, related features. Regge theory.

doi: 10.1103/PhysRevC.67.055201
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2003SP03      Nucl.Phys. A721, 679c (2003)

J.Speth, F.P.Sassen, S.Krewald

Meson-Production and the Structure of Scalar Mesons

doi: 10.1016/S0375-9474(03)01151-5
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2002SI08      Phys.Rev. C65, 044007 (2002)

A.Sibirtsev, S.Schneider, Ch.Elster, J.Haidenbauer, S.Krewald, J.Speth

ηN Final State Interaction in Incoherent Photoproduction of η Mesons from the Deuteron Near Threshold

NUCLEAR REACTIONS 2H(γ, X), E=620-800 MeV; calculated η meson production σ; deduced role of final state interactions. Comparison with data.

doi: 10.1103/PhysRevC.65.044007
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2002SI14      Phys.Rev. C65, 067002 (2002)

A.Sibirtsev, S.Schneider, Ch.Elster, J.Haidenbauer, S.Krewald, J.Speth

Incoherent η Photoproduction from the Deuteron Near Threshold

NUCLEAR REACTIONS 2H(γ, npX), E=620-680 MeV; calculated η meson photoproduction σ, σ(θ). Impulse approximation plus corrections, comparison with data.

doi: 10.1103/PhysRevC.65.067002
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2001SP01      Nucl.Phys. A680, 328c (2001)

J.Speth, O.Krehl, S.Krewald, C.Hanhart

The Structure of the Roper Resonance

doi: 10.1016/S0375-9474(00)00438-3
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2001WA13      Nucl.Phys. A684, 429c (2001)

Z.S.Wang, S.Krewald, J.Speth

A Meson-Theoretical Explanation of the f0(980) Production Puzzle in the Reaction π-p → π0π0n

doi: 10.1016/S0375-9474(01)00448-1
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2001WA22      Yad.Fiz. 64, No 4, 750 (2001); Phys.Atomic Nuclei 64, 691 (2001)

Z.S.Wang, S.Krewald, J.Speth

A Meson-Theoretical Explanation of the f0 (980)-Production Puzzle in the Reaction π-p → π0π0n

NUCLEAR REACTIONS 1H(π-, 2π0), E at 18.3, 38 GeV/c; analyzed partial wave amplitudes; deduced meson dynamics effects.

doi: 10.1134/1.1368225
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2000KR11      Phys.Rev. C62, 025207 (2000)

O.Krehl, C.Hanhart, S.Krewald, J.Speth

What is the Structure of the Roper Resonance ?

doi: 10.1103/PhysRevC.62.025207
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1999BO50      Phys.Rev. C60, 055212 (1999)

R.Bockmann, C.Hanhart, O.Krehl, S.Krewald, J.Speth

πNN Vertex Function in a Meson-Theoretical Model

doi: 10.1103/PhysRevC.60.055212
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1999CH15      Phys.Lett. 455B, 13 (1999)

B.Q.Chen, Z.Y.Ma, F.Grummer, S.Krewald

Neutron Rich Nuclei in Density Dependent Relativistic Hartree-Fock Theory with Isovector Mesons

NUCLEAR STRUCTURE Ca; calculated binding energies, radii for A=30-70. 40,70Ca; calculated neutron densities; deduced Fock exchange term effects, meson contributions. Density-dependent relativistic Hartree-Fock theory.

doi: 10.1016/S0370-2693(99)00428-1
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1999KR21      Phys.Rev. C60, 055206 (1999)

O.Krehl, C.Hanhart, S.Krewald, J.Speth

What Does ' ρ Exchange ' in πN Scattering Mean ?

doi: 10.1103/PhysRevC.60.055206
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1998CH01      J.Phys.(London) G24, 97 (1998)

B.Q.Chen, Z.Y.Ma, F.Grummer, S.Krewald

Relativistic Mean-Field Theory Study of Proton Halos in the 2s1d Shell

NUCLEAR STRUCTURE 24,25,26,27,28,29P, 26,27,28,29,30,31S; calculated one-, two-proton separation energies, density distributions; 31P, 24,25,26,27,28,30Si; calculated density distributions; deduced proton halo candidates. Relativistic mean-field theory.

doi: 10.1088/0954-3899/24/1/013
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1998CH30      Acta Phys.Pol. B29, 2223 (1998)

B.Q.Chen, Z.Y.Ma, F.Grummer, S.Krewald

The Role of Fock Terms and Isovector Mesons in Relativistic Hartree-Fock Calculations for Neutron Rich Nuclei

NUCLEAR STRUCTURE Ca; calculated binding energies, proton, neutron radii for A=30-70; deduced Fock term, vector mesons contributions.


1998CH31      Chin.Phys.Lett. 15, 636 (1998)

B.-Q.Chen, Z.Y.Ma, S.Krewald, F.Grummer

Contribution of Fock Term to Properties of Exotic Nuclei

NUCLEAR STRUCTURE Z=40; A=30-70; calculated binding energies, proton, neutron radii. 40,70Ca; calculated neutron density distributions; deduced Fock exchange term contributions for exotic nuclei. Density-dependent relativistic Hartree-Fock theory.

doi: 10.1088/0256-307X/15/9/005
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1998KR27      Acta Phys.Pol. B29, 3073 (1998)

O.Krehl, S.Krewald, J.Speth

πN → ηN Cross Sections and the Influence of Baryonic Resonances


1998NA31      Acta Phys.Pol. B29, 2519 (1998)

K.Nakayama, S.Krewald, J.Speth

Possible Role of the ρN Coupling in Pion Photo-Production


1997GR31      Bull.Rus.Acad.Sci.Phys. 61, 1925 (1997)

F.Grummer, B.Q.Chen, Z.Y.Ma, S.Krewald

Bulk Properties of Light Deformed Nuclei Derived from a Medium-Modified Meson-Exchange Interaction

NUCLEAR STRUCTURE Z=6-12; calculated radii, charge density, deformations for even-even nuclei. Medium-modified meson-exchange interaction.


1997KO38      Z.Phys. A358, 445 (1997)

E.Kolbe, S.Krewald, H.Weigel

Strangeness in the Nucleon and the Ratio of Proton-to-Neutron Neutrino-Induced Quasi-Elastic Yield

NUCLEAR REACTIONS 12C(ν, ν'), (ν-bar, ν-bar'), E not given; calculated proton-to-neutron yield ratio. Nucleon electroweak form factors from three flavor pseudoscalar vector meson soliton model.

doi: 10.1007/s002180050353
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1996GR21      Phys.Lett. 387B, 673 (1996)

F.Grummer, B.Q.Chen, Z.Y.Ma, S.Krewald

Bulk Properties of Light Deformed Nuclei Derived from a Medium-Modified Meson-Exchange Interaction

NUCLEAR STRUCTURE 8,10,12,14,16,18,20,22C, 16,18,20,22,24,26,28,30,32Ne, 12,14,16,18,20,22,24,26O, 20,22,24,26,28,30,32,34,36Mg; calculated energy per nucleon, nucleon charge densities rms radii, deformations in some cases. Deformed HFB, medium modified meson exchange interaction.

doi: 10.1016/0370-2693(96)01126-4
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1996JE04      Phys.Rev. C54, 2066 (1996)

S.Jeschonnek, S.Krewald, A.Szczurek

Final State Charge Exchange Interactions in the 12C(e, e'p) Reaction

NUCLEAR REACTIONS 12C(e, e'p), E=855.1 MeV; analyzed spectral function data; deduced final state interaction, off-shell effects role. Continuum RPA, channel coupling, direct, Pauli exchange diagrams.

doi: 10.1103/PhysRevC.54.2066
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1996MA45      Nucl.Phys. A608, 305 (1996)

Z.-Y.Ma, J.Speth, S.Krewald, B.-Q.Chen, A.Reuber

Hypernuclei with Meson-Exchange Hyperon-Nucleon Interactions

NUCLEAR STRUCTURE A=12-208; calculated Λ hypernuclei single particle levels, other aspects. Relativistic mean field theory.

doi: 10.1016/S0375-9474(96)00169-8
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1995CH68      J.Phys.(London) G21, 1759 (1995)

B.Q.Chen, Z.Y.Ma, S.Krewald, F.Grummer

Properties of Proton and Neutron Rich Nuclei in the Vicinity of 100Sn in Relativistic Mean Field Theory

NUCLEAR STRUCTURE 100,102,104,106,108,110,112,114,116,118,120,122,124,126,128,130,132,134Sn, 78Ni, 80Zn, 82Ge, 84Se, 86Kr, 88Sr, 90Zr, 92Mo, 94Ru, 96Pd, 98Cd; calculated binding energy per nucleon, nucleon rms radii. Relativistic mean field theory, effective interactions.

doi: 10.1088/0954-3899/21/12/011
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1995HA10      Phys.Lett. 344B, 55 (1995)

C.Hanhart, S.Krewald

Faddeev Approach to the Octet and Decuplet Baryons

doi: 10.1016/0370-2693(94)01532-H
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1995WI04      Phys.Rev. C51, 566 (1995)

R.A.Williams, S.Krewald, K.Linen

Vector Resonances and Electromagnetic Nucleon Structure

NUCLEAR STRUCTURE 1n, 1H; calculated charge radii, electric, magnetic form factors. Hybrid vector meson dominance formalism.

doi: 10.1103/PhysRevC.51.566
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1994JE04      Nucl.Phys. A570, 599 (1994)

S.Jeschonnek, A.Szczurek, G.Co, S.Krewald

Finite-State Interaction Effects in Exclusive and Inclusive Quasi-Elastic scattering from 12C

NUCLEAR REACTIONS 12C(e, e'p), (e, e'n), E not given; calculated spectral function vs missing momentum. 12C(e, e'), E not given; calculated longitudinal, transverse response functions. Final state interactions.

doi: 10.1016/0375-9474(94)90075-2
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1994KO03      Phys.Rev. C49, 1122 (1994)

E.Kolbe, K.Langanke, S.Krewald

Neutrino-Induced Reactions on 12C within the Continuum Random Phase Approximation

NUCLEAR REACTIONS 12C(ν, μ-), E=125-300 MeV; calculated σ(E), differential σ. 12C(ν, e-), (ν, ν'), E not given; calculated σ. Different interactions, different mechanisms for production of ν.

doi: 10.1103/PhysRevC.49.1122
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1993GA20      Phys.Rev. C48, 1919 (1993)

G.Garvey, E.Kolbe, K.Langanke, S.Krewald

Role of Strange Quarks in Quasielastic Neutrino Scattering

NUCLEAR REACTIONS 12C(ν, ν'n), (ν, ν'p), (ν-bar, ν-bar'n), (ν-bar, ν-bar'p), E not given; calculated neutron, proton yield ratio; deduced strange quarks role. Continiuum RPA.

doi: 10.1103/PhysRevC.48.1919
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1992DR02      Phys.Rev. C45, R2560 (1992)

S.Drozdz, S.Krewald, A.Szczurek

Density Effects in the (e, e'p) Reaction

NUCLEAR REACTIONS 12C(e, e'p), (e, e'n), E not given; calculated σ(E(e'), θ(e'), θ(nucleon)), separate p3/2, s1/2 contributions; deduced density dependence of rescattering processes. Channel-coupling, mean field distorting potential.

doi: 10.1103/PhysRevC.45.R2560
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1992GA14      Phys.Lett. 289B, 249 (1992)

G.T.Garvey, S.Krewald, E.Kolbe, K.Langanke

Strange Quark Contributions to Neutrino Induced Quasielastic Scattering

NUCLEAR REACTIONS 12C(ν, ν'n), (ν, ν'p), E=200 MeV; calculated angle integrated σ, proton-to-neutron yield ratio; deduced strange quark axial form factor sensitivity to yield ratio.

doi: 10.1016/0370-2693(92)91214-T
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1992KO06      Phys.Rev. C45, 2464 (1992)

E.Kolbe, K.Langanke, S.Krewald

Comparison of Inelastic Neutrino and Antineutrino Scattering on Nuclei

NUCLEAR REACTIONS 12C, 16O(ν, ν'), (ν-bar, ν-bar'), E=29.8 MeV; calculated inelastic scattering angle integrated σ. Other target nuclei studied. Continuum RPA.

doi: 10.1103/PhysRevC.45.2464
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1992KO07      Nucl.Phys. A540, 599 (1992)

E.Kolbe, K.Langanke, S.Krewald, F.-K.Thielemann

Inelastic Neutrino Scattering on 12C and 16O Above the Particle Emission Threshold

NUCLEAR REACTIONS 12C(ν, ν'), E ≈ 20-35 MeV; 16O(ν, ν'), E ≈ 12-38 MeV; 12C(ν-bar, ν-bar'), (ν-bar, e+), (ν, e-), E ≈ 15-40 MeV; 16O(ν-bar, ν-bar'), (ν-bar, e+), (ν, e-), E ≈ 13-39 MeV; calculated angle integrated σ. Extended continuum RPA theory.

doi: 10.1016/0375-9474(92)90175-J
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1992NI03      Phys.Lett. 281B, 208 (1992)

E.N.Nikolov, M.Bergmann, Chr.V.Christov, K.Goeke, A.N.Antonov, S.Krewald

Nucleon Properties in a Medium and Quasielastic Electron Scattering

NUCLEAR REACTIONS 12C, 40,48Ca, 56Fe, 208Pb(e, e'X), E not given; calculated longitudinal, transverse response functions. Relativistic Fermi gas model.

doi: 10.1016/0370-2693(92)91130-2
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1991BU04      Ann.Phys.(New York) 208, 346 (1991)

M.Buballa, S.Drozdz, S.Krewald, J.Speth

Nuclear Electromagnetic Response within Continuum RPA Theory

NUCLEAR REACTIONS 12C(e, e'), E < 200 MeV; calculated longitudinal, transverse response function components. Continuum RPA.

doi: 10.1016/0003-4916(91)90299-N
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1991BU07      Phys.Rev. C44, 810 (1991)

M.Buballa, S.Drozdz, S.Krewald, A.Szczurek

Final-State-Interaction Effects in the (e, e'p) Reaction

NUCLEAR REACTIONS 4He(e, e'p), E not given; analyzed data; deduced mean field scattering role. Meson exchange potential.

doi: 10.1103/PhysRevC.44.810
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1991TE01      Phys.Rev. C43, R2049 (1991)

N.Teruya, C.A.Bertulani, S.Krewald, H.Dias, M.S.Hussein

Hybrid Random-Phase-Approximation-Cluster Model for the Dipole Strength Function of 11Li

NUCLEAR REACTIONS 208Pb(11Li, X), E=800 MeV/nucleon; calculated electromagnetic excitation σ. Hybrid RPA-cluster model.

NUCLEAR STRUCTURE 11Li; calculated dipole strength distribution. Hybrid RPA-cluster model.

doi: 10.1103/PhysRevC.43.R2049
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1990BE22      Phys.Lett. 243B, 185 (1990)

M.Bergmann, K.Goeke, S.Krewald

Medium Effects in Quasi-Elastic Electron Scattering

NUCLEAR REACTIONS 40Ca(e, e'), E not given; calculated longitudinal, transverse response function. Nambu-Jona-Lasinio model form factors.

doi: 10.1016/0370-2693(90)90837-V
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1990BU27      Nucl.Phys. A517, 61 (1990)

M.Buballa, A.Gattone, R.De Haro, R.Jessenberger, S.Krewald

Decay of the Giant Dipole and Quadrupole Resonances in 16O

NUCLEAR REACTIONS 16O(e, e'p), (e, e'α), E not given; calculated proton, α- angle-integrated σ. 16O(γ, X), E=20-28 MeV; calculated σ(E). 16O deduced giant resonance decay features. RPA based model.

doi: 10.1016/0375-9474(90)90260-S
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1989DR05      Nucl.Phys. A501, 487 (1989)

S.Drozdz, M.Buballa, S.Krewald, J.Speth

Many-Body Coherence Effects in Quasielastic Electron Scattering

NUCLEAR REACTIONS 12C(e, e'X), E not given; calculated longitudinal, transverse response functions. Many-body coherence effects.

doi: 10.1016/0375-9474(89)90143-7
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1989KR03      Phys.Lett. 222B, 338 (1989)

S.Krewald

Modifications of the Proton Charge Form Factor in Nuclear Matter

NUCLEAR STRUCTURE 1n; calculated rms radius. 1H; calculated rms radius, charge form factor in nuclear matter. Two-phase model.

doi: 10.1016/0370-2693(89)90319-5
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1987NA14      Nucl.Phys. A470, 573 (1987)

K.Nakayama, S.Drozdz, S.Krewald, J.Speth

Quasiparticle Relativistic G-Matrix Interaction

NUCLEAR STRUCTURE 208Pb, 16O, 40Ca; calculated breathing mode 0+ state energy, B(λ). Relativistic G-matrix.

doi: 10.1016/0375-9474(87)90588-4
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1986KR03      Nucl.Phys. A448, 685 (1986)

S.Krewald, A.M.Lallena, J.S.Dehesa

Particle-Vibration Coupling and Exchange-Current Effects on the Magnetic Electron-Scattering Form Factor

NUCLEAR REACTIONS 208Pb, 16O(e, e'), E not given; calculated form factors; deduced exchange currents role. Particle-vibration coupling.

doi: 10.1016/0375-9474(86)90437-9
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1986LA15      Phys.Rev. C34, 332 (1986)

A.M.Lallena, J.S.Dehesa, S.Krewald

Nuclear Macroscopic Properties and Pionic Exchange Currents in (e, e') Processes

NUCLEAR REACTIONS 16O, 208Pb(e, e'), E not given; calculated form factors. High spin magnetic stretched states, meson exchange currents, effective pion propagator approximation.

doi: 10.1103/PhysRevC.34.332
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1985CO01      Nucl.Phys. A433, 392 (1985)

G.Co, S.Krewald

A Model for Particle Emission Induced by Electron Scattering

NUCLEAR REACTIONS 16O(γ, X), E=15-40 MeV; calculated σ(E). 16O(e, e'p), E=100, 180 MeV; calculated σ(θ(e), θp, E(e'), Ep). Continuum RPA.

doi: 10.1016/0375-9474(85)90273-8
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1985DE16      Nucl.Phys. A436, 573 (1985)

J.S.Dehesa, S.Krewald, A.Lallena, T.W.Donnelly

Meson Exchange-Current Effects in Heavy Nuclei

NUCLEAR REACTIONS 16O, 208Pb(e, e'), E not given; calculated magnetic state excitation form factors. Meson exchange current effects.

doi: 10.1016/0375-9474(85)90549-4
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1984CO07      Phys.Lett. 137B, 145 (1984)

G.Co, S.Krewald

Theoretical Analysis of Proton Decay of Electro-Excited Carbon

NUCLEAR REACTIONS 12C(γ, X), E=15-40 MeV; calculated σ(E). RPA. 12C(e, e'p), E not given; analyzed σ(θ(e'), E(e'), θp). 12C deduced possible 2+, 0+ resonances below GDR. Continuum RPA, final state interactions.

doi: 10.1016/0370-2693(84)90218-1
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1984LA28      Phys.Lett. 146B, 294 (1984)

A.M.Lallena, J.S.Dehesa, S.Krewald

Meson Exchange Current Effects in the Electroexcitation of Magnetic States in Closed Shell Nuclei

NUCLEAR REACTIONS 16O, 208Pb(e, e'), E not given; calculated transverse form factors. Microscopic approach, meson exchange effects.

doi: 10.1016/0370-2693(84)91699-X
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1984NA26      Phys.Lett. 148B, 399 (1984)

K.Nakayama, S.Krewald, J.Speth

Test of the Nuclear Matter G-Matrix Interaction in Nuclear Structure Calculations

NUCLEAR STRUCTURE 16O; calculated levels, Γ, B(λ). 208Pb; calculated levels, B(λ). G-matrix, one-boson exchange model.

doi: 10.1016/0370-2693(84)90726-3
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1983BR03      Phys.Rev.Lett. 50, 658 (1983)

V.R.Brown, S.Krewald, J.Speth

Crucial Test for the Δ(1232)-Hole Effect: (n, p) vs (p, n)

NUCLEAR REACTIONS 208Pb(n, p), E not given; calculated σ(θ); deduced isobar-hole state role in charge exchange process. Born approximation.

doi: 10.1103/PhysRevLett.50.658
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1982DE33      Nucl.Phys. A388, 265 (1982)

R.De Haro, S.Krewald, J.Speth

The Decay Width of Higher Multipole Giant Resonances

NUCLEAR STRUCTURE 208Pb, 16O; calculated B(λ) strength distribution, transition charge density, EWSR. RPA, Fourier-Bessel transition density expansion.

doi: 10.1016/0375-9474(82)90417-1
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1982DE40      Phys.Rev. C26, 1649 (1982)

R.de Haro, S.Krewald, J.Speth

Compression Mode Strength in 208Pb

NUCLEAR STRUCTURE 208Pb; calculated compression mode EWSR. RPA, Landau-Migdal interaction.

doi: 10.1103/PhysRevC.26.1649
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1982OS03      Phys.Rev.Lett. 49, 11 (1982)

F.Osterfeld, S.Krewald, J.Speth, T.Suzuki

Effect of the Δ(1232) Isobar in 48Ca(p, n) Cross Sections

NUCLEAR REACTIONS 48Ca(p, n), E=160 MeV; analyzed σ(θ); deduced isobar effects. 48Sc levels deduced isobar quenching dependence on multipolarity. Microscopic model.

doi: 10.1103/PhysRevLett.49.11
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1981IZ01      Nucl.Phys. A357, 471 (1981)

T.Izumoto, S.Krewald, A.Faessler

Nuclear Matter Approach to the Heavy-Ion Optical Potential (II). Imaginary part

NUCLEAR REACTIONS 16O(16O, 16O), E=80 MeV; 40Ca(16O, 16O), E=104, 214, 310 MeV; 40Ca(40Ca, 40Ca), E=240 MeV; calculated σ(θ). Nuclear matter approach to heavy ion potentials.

doi: 10.1016/0375-9474(81)90232-3
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1981KE01      Phys.Rev.Lett. 46, 103 (1981)

S.Krewald, F.Osterfeld, J.Speth, G.E.Brown

Nuclear-Structure Effects Connected with Charge-Exchange Resonances

NUCLEAR STRUCTURE 208Pb, 208Bi; calculated GDR, IAR, Gamow-Teller resonance energies. Generalized Landau-Migdal interaction, dynamical RPA, collective effects.

NUCLEAR REACTIONS 208Pb(p, n), E=120 MeV; calculated σ(θ). 208Bi deduced nuclear structure effects associated with Gamow-Teller resonance, IAS. Generalized Landau-Migdal interaction, dynamical RPA, collective effects.

doi: 10.1103/PhysRevLett.46.103
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1981KR14      Phys.Rev. C24, 966 (1981)

S.Krewald, A.Djaloeis, S.Gopal

Empirical Constraints on the 16O + 40Ca Optical Potential

NUCLEAR REACTIONS 40Ca(16O, 16O), E(cm)=35.7 MeV; analyzed σ(θ). Optical model, spline parametrization.

doi: 10.1103/PhysRevC.24.966
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