Tbilisi State University

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19942026

most citedObservation of a new particle in the search for the Standard Model Higgs boson with the ATLAS detector at the LHC

10.9k citations

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158 papers · 1 filter

hep-ph2025

Calculation of the axial-vector coupling constant $g_{A}$ to two loops in covariant chiral perturbation theory

Véronique Bernard, Jambul Gegelia, Shayan Ghosh +1

We present a calculation of the leading two-loop corrections to the axial-vector coupling constant $g_{A}$ in two covariant versions of two-flavor baryon chiral perturbation theory.…

hep-ph2024

Hadronic atoms

Akaki Rusetsky

We give a brief survey of the theory of hadronic atoms, which represent important sources of information for studying hadron interactions at very low energy. It will be namely demo…

hep-ph2024

Black Holes and Baryon Number Violation: Unveiling the Origins of Early Galaxies and the Low-Mass Gap

Merab Gogberashvili, Alexander S. Sakharov

We propose that modifications to the Higgs potential within a narrow atmospheric layer near the event horizon of an astrophysical black hole could significantly enhance the rate of…

hep-ph2024★ 10 cited

Dispersive analysis of the isospin breaking in the $X (3872) \to J / ψ π^{+} π^{-}$ and $X (3872) \to J / ψ π^{+} π^{0} π^{-}$ decays

Jorgivan Morais Dias, Teng Ji, Xiang-Kun Dong +5

We analyze the latest LHCb data on the $π^{+} π^{-}$ spectrum in the isospin-violating $X (3872) \to J / ψ π^{+} π^{-}$ decay, based on dispersion theory to deal with the $π π$ final state interac…

hep-ph2024★ 9 cited

Effects of Final State Interactions on Landau Singularities

Ajay S. Sakthivasan, Maxim Mai, Akaki Rusetsky +1

In certain kinematic and particle mass configurations, triangle singularities may lead to line-shapes which mimic the effects of resonances. This well-known effect is scrutinized h…

hep-ph2024★ 20 cited

Predicting isovector charmonium-like states from X(3872) properties

Zhen-Hua Zhang, Teng Ji, Xiang-Kun Dong +4

Using chiral effective field theory, we predict that there must be isovector charmonium-like $D D ˉ^{*}$ hadronic molecules with $J^{P C} = 1^{++}$ denoted as $W_{c 1}$ . The inputs are…

Calculation of the axial-vector coupling constant gA​ to two loops in covariant chiral perturbation theory