6 papers
Three-loop anomalous dimensions of leading-twist operators in the Gross-Neveu-Yukawa model
Mrigankamauli Chakraborty, Leonid A. Shumilov
We compute the anomalous dimensions of the leading-twist operators at three-loop level in the scheme in the Gross-Neveu-Yukawa model. Calculations are done f…
Connecting Supersymmetry to Non-Supersymmetric theories: the Gross-Neveu-Yukawa example
Mrigankamauli Chakraborty, Sven-Olaf Moch
We construct a generalized Lagrangian that unifies the Gross-Neveu-Yukawa, Nambu-Jona-Lasinio-Yukawa, and Wess-Zumino models, allowing for arbitrary scalar and fermion flavors in $…
Graphical Functions by Examples
Mrigankamauli Chakraborty, Marco Klann, Sven-Olaf Moch +4
Graphical functions have emerged as a powerful framework for evaluating multi-loop Feynman integrals in perturbative quantum field theory. Defined as massless three-point position-…
Operator Renormalization using Emergent Supersymmetries
Mrigankamauli Chakraborty, Sven-Olaf Moch
We develop a mechanism that enables supersymmetric Ward identities to be applied in non-supersymmetric theories. These identities are then used to streamline calculations in our ta…
Dimensional Reduction is Supersymmetric at Three Loops
Mrigankamauli Chakraborty, Sven-Olaf Moch
We resolve the long-standing claim that regularisation by dimensional reduction (DR) fails to preserve supersymmetry in Super Yang-Mills (SYM) theories at three loops. Earlier resu…
The asymptotic Hopf Algebra of Feynman Integrals
Mrigankamauli Chakraborty, Franz Herzog
The method of regions is an approach for developing asymptotic expansions of Feynman Integrals. We focus on expansions in Euclidean signature, where the method of regions can also…