High Energy Physics
High Energy Theory investigates at the most fundamental level the nature of matter and forces acting on it in the Universe. Our research addresses the following topics.
• Theoretical studies of specific observables and processes in the Standard Model (SM) and beyond the SM:
- precision tests of the SM at low and intermediate energies;
- hadronic form factors, heavy baryons, spectroscopy of scalar mesons;
- study of the hadron matter to quark-gluon plasma phase transition;
- implementation of theoretical models in event generators;
- neutrino physics.
• Nonperturbative aspects of gauge theories:
- use of causality and unitarity in phenomenological studies;
- discretization of field theories - alternatives to lattice field theories, without fermion doubling;
- use of space noncommutativity as a nonperturbative regularization scheme;
- physical processes in strong external electromagnetic fields.
• Structural aspects of classical and quantum field theories:
- gauge invariance and anomalies in the causal approach;
- nonlocal field theories in reduced dimensionality and solvable models;
- noncommutative and random tensor models in three and four dimensions;
- continuum limit of discrete theories and relevance for quantum gravity.
• Symmetries and conservations laws as basic tools in the investigation of physical systems:
- generalized symmetries on curved spaces;
- symmetry analysis of physical processes in external fields;
- singularities in general relativity and cosmological models.
• Beyond Standard Model in flat and curved space-time:
- symmetries beyond SM and their breaking (classical and quantum scale invariance, Weyl gauge symmetry, supersymmetry, supergravity etc);
- alternative theories of gravity (Weyl gravity theory, Palatini gravity, Brans-Dicke theory etc) and their predictions; models of dark matter, dark energy and inflation.
• String theory in particle physics and cosmology:
- string and F-theory model building;
- flux and orbifold compactifications, effective supergravity theories;
- moduli stabilization, supersymmetry breaking;
- nonperturbative effects, grand unification, models of inflation;
- string cosmology.
