231 citations · 2.4k across the 78 of their papers we have counts for
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Application of an Extended Random Phase Approximation on Giant Resonances in Light, Medium and Heavy Mass Nuclei
V. Tselyaev, N. Lyutorovich, J. Speth +2
We present results of the time blocking approximation (TBA) on giant resonances in light, medium and heavy mass nuclei. The TBA is an extension of the widely used random-phase appr…
The phonon-coupling model for Skyrme forces
N. Lyutorovich, V. Tselyaev, J. Speth +2
A short review on the self-consistent RPA based on a energy-density functional of the Skyrme type is given. We also present an extension of the RPA where the coupling of phonons to…
Impact of the phonon coupling on the photon strength function
Oleg Achakovskiy, Alexander Avdeenkov, Stephane Goriely +2
The pygmy dipole resonances and photon strength functions in stable and unstable Ni and Sn isotopes are calculated within the microscopic self-consistent version of the extended th…
Microscopic nature of the photon strength function: stable and unstable Ni and Sn isotopes
Oleg Achakovskiy, Alexander Avdeenkov, Stephane Goriely +3
The pygmy-dipole resonances and photon strength functions in stable and unstable Ni and Sn isotopes are calculated within the microscopic self-consistent version of the extended th…
Landau-Migdal vs. Skyrme
J. Speth, S. Krewald, F. Grümmer +3
The magnitude and density-dependence of the non-spin dependent Landau-Migdal parameters are derived from Skyrme energy functionals and compared with the phenomenological ones. We p…
Photocouplings at the Pole from Pion Photoproduction
D. Rönchen, M. Döring, F. Huang +6
The reactions and are analyzed in a semi-phenomenological approach up to GeV. Fits to differential cross section and single and double polariza…
Phonon coupling effects in magnetic moments of magic and semi-magic nuclei
E. E. Saperstein, O. Achakovskiy, S. Kamerdzhiev +3
Phonon coupling (PC) corrections to magnetic moments of odd neighbors of magic and semi-magic nuclei are analyzed within the self-consistent Theory of Finite Fermi Systems (TFFS) b…
Coupled-channel dynamics in the reactions piN --> piN, etaN, KLambda, KSigma
D. Rönchen, M. Döring, F. Huang +6
Elastic piN scattering and the world data of the family of reactions pi^- p --> eta n, K^0 Lambda$, K^0 Sigma^0, K^+ Sigma^-, and pi^+ p --> K^+ Sigma^+ are described simultaneousl…
Self-consistent calculations of quadrupole moments of spherical nuclei
S. Kamerdzhiev, S. Krewald, S. Tolokonnikov +2
The self-consistent Theory of Finite Fermi Systems based on the Energy Density Functional by Fayans et al. with the set DF3-a of parameters fixed previously is used to calculate th…
The first quadrupole excitations in spherical nuclei and nuclear pairing
S. V. Tolokonnikov, S. Kamerdzhiev, S. Krewald +2
Excitation energies and transition probabilities of the first 2+ excitations in even lead, tin and nickel isotopes are calculated within the self-consistent Theory of Finite Fermi…
Migdal and his theory in Jülich
J. Speth, F. Grümmer, S. Krewald
We review the application of Migdal's "Theory of Finite Fermi System" to the structure of deformed nuclei, approaches beyond the conventional linear response, and microscopic calcu…
Self-consistent calculations of the electric giant dipole resonances in light and heavy mass nuclei
N. Lyutorovich, V. Tselyaev, J. Speth +3
While bulk properties of stable nuclei are successfully reproduced by mean-field theories employing effective interactions, the dependence of the centroid energy of the electric gi…
Self-consistent calculations of quadrupole moments of the first 2+ states in Sn and Pb isotopes
Dmitrii Voitenkov, Sergei Kamerdzhiev, Siegfried Krewald +2
A method of calculating static moments of excited states and transitions between excited states is formulated for non-magic nuclei within the Green function formalism. For these ch…
Quadrupole moments of spherical semi-magic nuclei within the self-consistent Theory of Finite Fermi Systems
S. V. Tolokonnikov, S. Kamerdzhiev, D. Voitenkov +2
The quadrupole moments of odd neighbors of semi-magic lead and tin isotopes and isotones are calculated within the self-consistent Theory of Finite Fermi Systems based…
Pion photoproduction in a dynamical coupled-channels model
F. Huang, M. Döring, H. Haberzettl +5
The charged and neutral pion photoproduction reactions are investigated in a dynamical coupled-channels approach based on the formulation of Haberzettl, Huang, and Nakayama [Phys.…
Dynamical coupled-channels model study of pion photoproduction
F. Huang, M. Döring, H. Haberzettl +5
The photoproduction of pion off nucleon is investigated within a dynamical coupled-channels approach based on the Juelich pi-N model, which has been quite successful in the descrip…
Effects of density dependence of the effective pairing interaction on the first excitations and quadrupole moments of odd nuclei
S. V. Tolokonnikov, S. Kamerdzhiev, D. Voytenkov +2
Excitation energies and transition probabilities of the first excitations in even tin and lead isotopes as well as the quadrupole moments of odd neighbors of these isotopes a…
Relevance of complex branch points for partial wave analysis
S. Ceci, M. Döring, C. Hanhart +3
A central issue in hadron spectroscopy is to deduce --- and interpret --- resonance parameters, namely pole positions and residues, from experimental data, for those are the quanti…
Pion photoproduction in a dynamical coupled-channel model
F. Huang, M. Döring, H. Haberzettl +2
Pion photoproduction reactions are investigated in a dynamical coupled-channel approach based on the Juelich pi-N model, which presently includes the hadronic pi-N and eta-N stable…
The reaction pi+ p --> K+ Sigma+ in a unitary coupled-channels model
M. Döring, C. Hanhart, F. Huang +3
Elastic pi N scattering and the reaction pi+ p --> K+ Sigma+ are described simultaneously in a unitary coupled-channels approach which respects analyticity. SU(3) flavor symmetry i…
Analysis of recent eta photoproduction data
A. Sibirtsev, J. Haidenbauer, S. Krewald +1
Recent data on eta-meson photoproduction off a proton target in the energy range 2 < sqrt{s} < 3 GeV are analyzed with regard to their overall consistency. Results from the ELSA an…
Calculations of the isoscalar giant monopole resonance within the self-consistent RPA and its extensions
V. Tselyaev, S. Krewald, E. Litvinova +1
The strength distributions of the isoscalar giant monopole resonance have been calculated in O, Ca, Zr, Sn, Sm, and Pb nuclei withi…
Backward pion-nucleon scattering
F. Huang, A. Sibirtsev, J. Haidenbauer +2
A global analysis of the world data on differential cross sections and polarization asymmetries of backward pion-nucleon scattering for invariant collision energies above 3 GeV is…
Analytic properties of the scattering amplitude and resonances parameters in a meson exchange model
M. Döring, C. Hanhart, F. Huang +2
The analytic properties of scattering amplitudes provide important information. Besides the cuts, the poles and zeros on the different Riemann sheets determine the global behavior…