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Mode-coupling and the pygmy dipole resonance in a relativistic two-phonon model
Elena Litvinova, Peter Ring, Victor Tselyaev
A two-phonon version of the relativistic quasiparticle time blocking approximation (RQTBA-2) represents a new class of many-body models for nuclear structure calculations based on…
Covariant density functional theory: The role of the pion
G. A. Lalazissis, S. Karatzikos, M. Serra +2
We investigate the role of the pion in Covariant Density Functional Theory. Starting from conventional Relativistic Mean Field (RMF) theory with a non-linear coupling of the -me…
Relativistic RPA in axial symmetry
D. Pena Arteaga, P. Ring
Covariant density functional theory, in the framework of self-consistent Relativistic Mean Field (RMF) and Relativistic Random Phase approximation (RPA), is for the first time appl…
Quantum fluctuations in the shape of exotic nuclei
J. M. Yao, J. Meng, P. Ring +2
Quantum fluctuations concerning the shape of nuclei are treated within the framework of covariant density functional theory. Long range correlations beyond mean field are taken int…
Particle vibrational coupling in covariant density functional theory
P. Ring, E. Litvinova
A consistent combination of covariant density functional theory (CDFT) and Landau-Migdal Theory of Finite Fermi Systems (TFFS) is presented. Both methods are in principle exact, bu…
Axially deformed relativistic Hartree Bogoliubov with separable pairing force
Yuan Tian, Zhongyu Ma, Peter Ring
A separable form of pairing interaction in the channel has been introduced and successfully applied in the description of both static and dynamic properties of superflu…
A Separable Pairing Force for Relativistic Quasiparticle Random Phase Approximation
Yuan Tian, Zhongyu Ma, Peter Ring
We have introduced a separable pairing force, which was adjusted to reproduce the pairing properties of the Gogny force in nuclear matter. This separable pairing force is able to d…
A finite range pairing force for density functional theory in superfluid nuclei
Y. Tian, Z. Y. Ma, P. Ring
The problem of pairing in the S channel of finite nuclei is revisited. In nuclear matter forces of separable form can be adjusted to the bare nuclear force, to any phen…
Spinodal Instabilities in Nuclear Matter in a Stochastic Relativistic Mean-Field Approach
S. Ayik, O. Yilmaz, N. Er +2
Spinodal instabilities and early growth of baryon density fluctuations in symmetric nuclear matter are investigated in the basis of stochastic extension of relativistic mean-field…
Low-lying dipole response in the Relativistic Quasiparticle Time Blocking Approximation and its influence on neutron capture cross sections
E. Litvinova, H. P. Loens, K. Langanke +5
We have computed dipole strength distributions for nickel and tin isotopes within the Relativistic Quasiparticle Time Blocking approximation (RQTBA). These calculations provide a g…