6 papers
From OPE Associativity to Gravitational Wave Signatures: Critical Dimensions and AdS/dS Transition
Tetiana Obikhod
We present a framework connecting the algebraic consistency of the Operator Product Expansion (OPE) in Conformal Field Theories to observable signatures in the stochastic gravitati…
Supersymmetry, Supergravity and Non--Perturbative Dynamics of Gauge Theories
Tetiana Obikhod
We present a review of supersymmetry, supergravity, and the non-perturbative dynamics of gauge theories, tracing a path from the supersymmetry algebra to moduli stabilisation and d…
Higgs Boson Production in Association with a Single Top Quark as a Probe of the Top Yukawa Coupling
Tetiana Obikhod, Ievgenii Petrenko
This paper provides a detailed analysis of the associated production of the Higgs boson with a single top quark () in proton-proton collisions at a…
Wilson loops as probes of phase transitions and conductivity phenomena
Tetiana Obikhod, Ievgenii Petrenko
Wilson loops are among the most fundamental gauge-invariant observables in quantum field theory, encoding the global structure of gauge fields through their holonomy along closed c…
Branching Ratios of in the Broken-Phase N2HDM
T. V. Obikhod, Ie. O. Petrenko
Recent evidence from the ATLAS Collaboration for the rare decay provides a unique window into the Higgs boson's coupling to second-generation fermions.…
Research of the Behavior of the Effective Potential in Systems with Phase Transitions through the Prism of A--D--E Type Singularities
T. V. Obikhod
Detecting a scalar singlet interacting through the Higgs portal demands a pivot from conventional particle detection strategies to a comprehensive examination of the effective pote…