Souvik Bera

collaborators

3 papers

hep-ph2026

HyperPrecision: A Mathematica package for High-Precision Numerical Evaluation of Multivariate Hypergeometric Functions

Sumit Banik, Souvik Bera

In this paper, we present HyperPrecision, a Mathematica package for high-precision numerical evaluation of general Horn-type multivariate hypergeometric functions and their Laurent…

hep-ph2026

One-loop amplitudes for $t t ˉ j$ and $t t ˉ I^^{3}$ productions at the LHC through $O (I^µ^{2})$

Souvik Bera, Colomba Brancaccio, Dhimiter Canko +1

We present analytic expressions for the one-loop QCD helicity amplitudes contributing to top-quark pair production in association with a photon or a jet at the Large Hadron Collide…

hep-ph2025

Analytic continuations and numerical evaluation of the Appell $F_{1}$ , $F_{3}$ , Lauricella $F_{D}^{(3)}$ and Lauricella-Saran $F_{S}^{(3)}$ and their Application to Feynman Integrals

Souvik Bera, Tanay Pathak

We present our investigation of the study of two variable hypergeometric series, namely Appell $F_{1}$ and $F_{3}$ series, and obtain a comprehensive list of its analytic continuat…

HyperPrecision: A Mathematica package for High-Precision Numerical Evaluation of Multivariate Hypergeometric Functions

One-loop amplitudes for ttˉj and ttˉI^3 productions at the LHC through O(I^µ2)

Analytic continuations and numerical evaluation of the Appell F1​, F3​, Lauricella FD(3)​ and Lauricella-Saran FS(3)​ and their Application to Feynman Integrals

One-loop amplitudes for $t t ˉ j$ and $t t ˉ I^^{3}$ productions at the LHC through $O (I^µ^{2})$

Analytic continuations and numerical evaluation of the Appell $F_{1}$ , $F_{3}$ , Lauricella $F_{D}^{(3)}$ and Lauricella-Saran $F_{S}^{(3)}$ and their Application to Feynman Integrals