46 citations · 182 across the 14 of their papers we have counts for
14 papers
Sunset integrals with up to three mass scales in chiral perturbation theory: a comparative study of the Mellin-Barnes representation technique
Balasubramanian Ananthanarayan, Sumit Banik, Véronique Bernard +3
Sunset integrals are among the simplest of two-loop integrals that appear in perturbative quantum field theories and possess up to four distinct mass scales. By means of integratio…
Calculation of the axial-vector coupling constant to two loops in covariant chiral perturbation theory
Véronique Bernard, Jambul Gegelia, Shayan Ghosh +1
We present a calculation of the leading two-loop corrections to the axial-vector coupling constant in two covariant versions of two-flavor baryon chiral perturbation theory.…
Massive One-loop Conformal Feynman Integrals and Quadratic Transformations of Multiple Hypergeometric Series
B. Ananthanarayan, Sumit Banik, Samuel Friot +1
The computational technique of -fold Mellin-Barnes (MB) integrals, presented in a companion paper by the same authors, is used to derive sets of series representations of the ma…
Multiple Series Representations of -fold Mellin-Barnes Integrals
B. Ananthanarayan, Sumit Banik, Samuel Friot +1
Mellin-Barnes (MB) integrals are well-known objects appearing in many branches of mathematics and physics, ranging from hypergeometric functions theory to quantum field theory, sol…
The Double Box and Hexagon Conformal Feynman Integrals
B. Ananthanarayan, Sumit Banik, Samuel Friot +1
The off-shell massless six-point double box and hexagon conformal Feynman integrals with generic propagator powers are expressed in terms of linear combinations of multiple hyperge…
New analytic continuations for the Appell series from quadratic transformations of the Gauss function
B. Ananthanarayan, Samuel Friot, Shayan Ghosh +1
We present new analytic continuation formulas for the Appell double hypergeometric series where , which allows quadratic transformations of the Gauss ${…