Quantum field theory and elementary particles physics.
Main publications:
S.A. Larin, “A new method of expansion of Feynman intergrals”, Physics Letters B, 469 (1999), 220–224
S.A. Larin, “The method of direct expansion of Feynman intergrals”, Physics Letters B, 514 (2001), 366–370
S.A. Larin, “The next-to-leading QCD approximation to the Ellis-Juffe sumrule”, Physics Letters B, 334 (1994)
T. van Ritbergen, J.A.M. Vermaseren, S.A.Larin, “The four loop beta function in quantum chromodynamics”, Physics Letters B, 400 (1997), 379–384
J.A.M. Vermaseren, S.A. Larin, T. van Ritbergen, “The four loop quark mass anomalous dimension and the invariant quark mass”, Physics Letters B, 405 (1997), 327–333
A. L. Kataev, S. A. Larin, “Analytical five-loop expressions for
the renormalization group QED $\beta$-function in different
renormalization schemes”, Pis'ma v Zh. Èksper. Teoret. Fiz., 96:1 (2012), 64–67; JETP Letters, 96:1 (2012), 61–65
S. G. Gorishnii, A. L. Kataev, S. A. Larin, “Two-loop renormalization-group calculations in theories with scalar quarks”, TMF, 70:3 (1987), 372–383; Theoret. and Math. Phys., 70:3 (1987), 262–270