Andrei Belitsky

About

Andrei Belitsky acquired his master's degree from Yaroslavl State University in 1993 and his doctorate from the Joint Institute for Nuclear Research in Dubna, Russia, in 1996. He joined Arizona State University in 2004 and has been a professor in the Department of Physics since 2013. His research interests include phenomenological and formal aspects of gauge and string theories, with a focus on topics such as Hadron, Flavor, and Strong Interaction Physics. Professor Belitsky has contributed to the field through his research and publications, exploring integrability in QCD and beyond, as well as renormalons in exclusive meson electroproduction.

Research topics

• Mathematical physics
• Mathematical analysis
• Quantum mechanics
• Physics
• Pure mathematics
• Mathematics

Selected publications

• Exact null octagon

  Journal of High Energy Physics · 2020 · 57 citations

  1st authorCorresponding

  A bstract We consider the so-called simplest correlation function of four infinitely heavy half-BPS operators in planar $$ \mathcal{N} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>N</mml:mi> </mml:math> = 4 SYM in the limit when the operators are light-like separated in a sequential manner. We find a closed-form expression for the correlation function in this limit as a function of the ’t Hooft coupling and residual cross ratios. Our analysis heavily relies on the factori…

  PublisherOA PDFDOI

• Octagon at finite coupling

  Journal of High Energy Physics · 2020-07-01 · 55 citations

  articleOpen access1st authorCorresponding

  A bstract We study a special class of four-point correlation functions of infinitely heavy half-BPS operators in planar $$ \mathcal{N} $$ <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"> <mml:mi>N</mml:mi> </mml:math> = 4 SYM which admit factorization into a product of two octagon form factors. We demonstrate that these functions satisfy a system of nonlinear integro-differential equations which are powerful enough to fully determine their dependence on the ’t Hooft coupling and two cro…

  PublisherOA PDFDOI

• MB tools reloaded

  Nuclear Physics B · 2022-12-28 · 22 citations

  articleOpen access1st authorCorresponding

  We address the problem of evaluation of multiloop Feynman integrals by means of their Mellin-Barnes representation. After a brief overview of available capabilities through open source toolkits and their application in various circumstances, we introduce a new code MBcreate which allows one to automatically deduce a concise Mellin-Barnes representation for a given parametric integral. A thorough discussion of its implementation and use is provided.

  PublisherDOI

• Balancing act: Multivariate rational reconstruction for IBP

  Nuclear Physics B · 2023-06-16 · 20 citations

  articleOpen access1st authorCorresponding

  We address the problem of unambiguous reconstruction of rational functions of many variables. This is particularly relevant for recovery of exact expansion coefficients in integration-by-parts identites (IBPs) based on modular arithmetic. These IBPs are indispensable in modern approaches to evaluation of multiloop Feynman integrals by means of differential equations. Modular arithmetic is far more superior to algebraic implementations when one deals with high-multiplicity situations involving a…

  PublisherDOI

• Exact Off Shell Sudakov Form Factor in <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:mi mathvariant="script">N</mml:mi><mml:mo>=</mml:mo><mml:mn>4</mml:mn></mml:math> Supersymmetric Yang-Mills Theory

  Physical Review Letters · 2023-03-03 · 14 citations

  articleOpen access1st authorCorresponding

  We consider the Sudakov form factor in planar N=4 supersymmetric Yang-Mills theory in the off shell kinematical regime, which can be achieved by considering the theory on its Coulomb branch. We demonstrate that for up to three loops both the infrared-divergent as well as the finite terms do exponentiate, with the coefficient accompanying log^{2}(m^{2}) determined by the octagon anomalous dimension Γ_{oct}. This behavior is in stark contrast to previous conjectural accounts in the literature. Tog…

  PublisherOA PDFDOI

Recent grants

• Topics in Strong Force

  NSF · $324k · 2017–2021

• New Tools to Study Strong Interaction Physics

  NSF · $480k · 2008–2012

• Scattering Amplitudes and Correlation Functions

  NSF · $225k · 2022–2025

Frequent coauthors

• G.P. Korchemsky

  Institut de Physique Théorique

  165 shared

• D. Müller

  Bayerisches Landesamt für Denkmalpflege

  87 shared

• E. Sokatchev

  Laboratoire d'Annecy-le-Vieux de Physique Théorique

  81 shared

• Stefan Hohenegger

  Institut de Physique des 2 Infinis de Lyon

  19 shared

• George Sterman

  Stony Brook University

  15 shared

• S. É. Derkachov

  12 shared

• A. N. Manashov

  11 shared

• Andreas Schäfer

  10 shared

Education

• Ph.D.

  Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research

  1996

• M.S.

  Moscow State University Research Center, Bogoliubov Laboratory of Theoretical Physics, Joint Institute for Nuclear Research

  1993

• Other, Theoretical Physics and Physics

  Yaroslavl State University

  1993

Similar researchers at Arizona State University

• Jingyue Liuh-74
• Stuart Lindsayh-63
• Richard Kirianh-54