3 papers
hep-th2025
Meson mass spectrum in Ising Field Theory
Alexey Litvinov, Pavel Meshcheriakov, Egor Shestopalov
We study the two-particle approximation of the Ising Field Theory (IFT), formulated in terms of the Bethe-Salpeter (BS) equation. Derived by Fonseca and Zamolodchikov as a systemat…
hep-th2025
QCD 't Hooft model: 2-flavour mesons spectrum
Aleksandr Artemev, Alexey Litvinov, Pavel Meshcheriakov
We continue analytical study of the meson mass spectrum in the large- two-dimensional QCD, known as the 't Hooft model, by addressing the most general case of quarks with uneq…
hep-th2025
Meson mass spectrum in QCD 't Hooft's model
Alexey Litvinov, Pavel Meshcheriakov
We study the spectrum of meson masses in large QCD governed by celebrated 't Hooft's integral equation. We generalize analytical methods proposed by Fateev, Lukyanov and…