38 citations · 199 across the 30 of their papers we have counts for
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Structure functions generated by zero sound excitations
V. A. Sadovnikova
In isospin symmetric and asymmetric nuclear matter we study the structure functions connected with the zero sound excitations. In the simple model with Landau-Migdal quasiparticle…
Zero-sound in nuclear matter with the asymmetry parameter
V. A. Sadovnikova
Results for the frequencies of zero-sound excitations in the isospin asymmetric nuclear matter are presented for the different parameters of asymmetry -1\leqβ\leq 1. The dispersion…
Equilibrium of nuclear matter in QCD sum rules
E. G. Drukarev, M. G. Ryskin, V. A. Sadovnikova
We calculate the nucleon parameters in symmetric nuclear matter employing the QCD sum rules approach. We focus on the average energy per nucleon and study the equilibrium states of…
Many body effects in nuclear matter QCD sum rules
E. G. Drukarev, M. G. Ryskin, V. A. Sadovnikova
We calculate the single-particle nucleon characteristics in symmetric nuclear matter with inclusion of the 3N and 4N interactions. We calculated the contribution of the 3N interact…
Three nucleon forces in nuclear matter in the QCD sum rules
E. G. Drukarev, M. G. Ryskin, V. A. Sadovnikova
We calculate the single-particle nucleon characteristics in symmetric nuclear matter with inclusion of the 3N interactions. The contribution of the 3N forces to the nucleon self en…
Evaluation of the escape widths of the giant dipole resonances in the fermi-liquid theory
V. A. Sadovnikova
In the theory of the finite fermi-systems [1], it was shown that giant resonances in nuclei can be consider as the zero-sound excitations which exhaust the large part of the energy…
The role of the in-medium four-quark condensates revised
E. G. Drukarev, M. G. Ryskin, V. A. Sadovnikova
We calculate the nucleon self-energies in nuclear matter in the QCD sum rules approach, taking into account the contributions of the four-quark condensates. We analyze the dependen…
A New Approach to Physics of Nuclei
E. G. Drukarev, M. G. Ryskin, V. A. Sadovnikova
We employ the QCD sum rules method for description of nucleons in nuclear matter. We show that this approach provides a consistent formalism for solving various problems of nuclear…
Solutions of the dispersion equation in the region of overlapping of zero-sound and particle-hole modes
V. A. Sadovnikova
In this paper the solutions of the zero-sound dispersion equation in the random phase approximation (RPA) are considered. The calculation of the damped zero-sound modes ω_s(k) (com…
Nucleon QCD sum rules in nuclear matter including radiative corrections
E. G. Drukarev, M. G. Ryskin, V. A. Sadovnikova
We calculate the nucleon parameters in nuclear matter using the QCD sum rules method. The radiative corrections to the leading operator product expansion terms are included, with t…
Role of unphysical solution in nucleon QCD sum rules
E. G. Drukarev, M. G. Ryskin, V. A. Sadovnikova
We show that at certain values of QCD condensates the nucleon QCD sum rules with "pole+continuum" model for the hadron spectrum obtain an unphysical solution. This provides constra…
Nucleon sum rules in symmetric and asymmetric nuclear matter
V. A. Sadovnikova, E. G. Drukarev, M. G. Ryskin
We calculate the nucleon parameters in isospin symmetric and asymmetric nuclear matter using the QCD sum rules. The higher moments of the nucleon structure functions are included.…
Analysis of zero-frequency solutions of the pion dispersion equation in nuclear matter
V. A. Sadovnikova
In this paper we consider instability of nuclear matter which takes place when the frequencies of the collective excitations turn to zero. We investigate collective excitations wit…
Investigation of Zero-Sound Dispersion Equation in the Complex Plane of Frequency
V. A. Sadovnikova
The known solutions to the zero-sound dispersion equation are considered as placed on the physical and unphysical sheets in the complex plane of frequency.
QCD Sum Rules Description of Nucleons in Asymmetric Nuclear Matter
E. G. Drukarev, M. G. Ryskin, V. A. Sadovnikova
We calculate the nucleon parameters in isospin asymmetric nuclear matter using the QCD sum rules. The nucleon self-energies are expressed in terms of the in-medium values of QCD co…
Nucleon QCD sum rules in nuclear matter including four-quark condensates
E. G. Drukarev, M. G. Ryskin, V. A. Sadovnikova +2
We calculate the nucleon parameters in nuclear matter using the QCD sum rules approach in Fermi gas approximation. Terms up to 1/q^2 in the operator product expansion (OPE) are tak…
On the relation between the long-wave instability and the pion condensation in nuclear matter
V. A. Sadovnikova
The solutions to the zero-sound frequency equation and pion dispersion equation are considered for the different values of the parameters of the effective particle-hole interaction…
QCD condensates and hadron parameters in nuclear matter: self-consistent treatment, sum rules and all that
E. G. Drukarev, M. G. Ryskin, V. A. Sadovnikova
We review various approaches to the calculation of QCD condensates and of the nucleon characteristics in nuclear matter. We show the importance of their self-consistent treatment.…
Solutions of the pion dispersion equation in the medium: new aspects
V. A. Sadovnikova
In symmetrical nuclear matter the solutions of pion dispersion equation are investigated in the complex plane of the pion frequency ω. There are three well-known branches of soluti…
Low- and intermediate-energy nucleon-nucleon interactions and the analysis of deuteron photodisintegration within the dispersion relation technique
A. V. Anisovich, V. A. Sadovnikova
The nucleon-nucleon interaction in the region of the nucleon kinetic energy up to 1000 MeV is analysed together with the reaction in the photon energy range …