3 papers
hep-th2026
Meson states in `t Hooft model: Hamiltonian approach
A. V. Smilga
We point out that the masses of the highly excited bound quark-antiquark states in QCD in the infinite limit may be determined in the framework of a simple quantum-mechanic…
hep-ph2026
QCD sum rules: Borel parameter vs. Euclidean time
A. V. Smilga
We explore a modification of QCD sum rules where, instead of Borel transforms of current correlators, one considers the correlators in coordinate space as functions of Euclidean ti…
hep-th2026
Symmetries of massless QCD
A. V. Smilga
We present a pedagogical review of certain exact theoretical results concerning the physics of an imaginary world where one quark or more are deprived of their masses.