Shayan Ghosh

activity

20162025

most citedMultiple Series Representations of

N

-fold Mellin-Barnes Integrals

46 citations · 182 across the 14 of their papers we have counts for

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hep-ph2025

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…

hep-ph2025

Calculation of the axial-vector coupling constant $g_{A}$ 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 $g_{A}$ in two covariant versions of two-flavor baryon chiral perturbation theory.…

Sunset integrals with up to three mass scales in chiral perturbation theory: a comparative study of the Mellin-Barnes representation technique

Calculation of the axial-vector coupling constant gA​ to two loops in covariant chiral perturbation theory

Calculation of the axial-vector coupling constant $g_{A}$ to two loops in covariant chiral perturbation theory