40 citations · 53 across the 8 of their papers we have counts for
9 papers
Collapse to the Center and Ambiguity in the Asymptotic Behavior of the Off-Shell Scattering Amplitude in Singular Three-Body Problems
Alexander E. Kudryavtsev, Alexander I. Romanov
We discuss some examples of equations of the three-body problem with the oscillating asymptotics at large momentum: (i) the fixed-center approximation, (ii) the unitarized equation…
Zero Points of Chiral Condensate
V. G. Ksenzov, A. I. Romanov
We investigate a model with a massless fermion and a massive scalar field with the Yukawa interaction between these two fields. The model possess a discrete symmetry. The chiral co…
Three-body scattering problem in the fixed center approximation: the case of attraction
Alexander E. Kudryavtsev, Vakhid A. Gani, Alexander I. Romanov
We study the scattering of a light particle on a bound pair of heavy particles (e.g., the deuteron) within the fixed center approximation in the case of light-heavy attraction, sol…
Chiral condensate beyond one-loop approximation
V. G. Ksenzov, A. I. Romanov
We study two-dimensional model with a fermion field and a self-interaction scalar field with the Yukawa interaction beyond the framework of the one-loop approximation. We show that…
Phase Transitions in Models with Discrete Symmetry
V. G. Ksenzov, A. I. Romanov
We investigate a class of models with a massless fermion and a self-interacting scalar field with the Yukawa interaction between these two fields. The models considered are formula…
Does the Multiple-scattering Series in the Pion-deuteron Scattering Actually Converge?
Alexander E. Kudryavtsev, Alexander I. Romanov, Vakhid A. Gani
It is demonstrated that the well-known answer for the multiple-scattering series (MSS) for a light particle interacting to a pair of static nucleons, calculated in the Fixed Center…
Dynamical Symmetry Breaking in Models with the Yukawa Interaction
V. G. Ksenzov, A. I. Romanov
We discuss models with a massless fermion and a self-interacting massive scalar field with the Yukawa interaction. The chiral condensate and the fermion mass are calculated analyti…
{\bar p}p-annihilation processes in the tree approximation of SU(3) chiral effective theory
V. E. Tarasov, A. E. Kudryavtsev, A. I. Romanov +1
The {\bar p}p-annihilation reactions {\bar p}p-->eta eta eta and {\bar p}p--> eta K{\bar K} at rest are considered in the tree approximation in the framework of SU(3) chiral effect…
Comment on "Possibility of Deeply Bound Hadronic Molecules from Single Pion Exchange"
A. A. Filin, A. Romanov, V. Baru +5
We demonstrate that in calculation, where unitarity constraints are properly imposed, the deeply bound hadronic molecules recently proposed by Close and Downum do not exist.