6 papers · 1 filter
NLP threshold corrections to W+jet production
Sourav Pal, Satyajit Seth
We perform a detailed computation of the helicity-dependent next-to-leading power leading logarithms in W+jet production, originating from next-to-soft gluon radiation and soft (an…
Universality at next-to-leading power for jet associated processes
Sourav Pal, Satyajit Seth
The study of cross-sections in the threshold limit at next-to-leading power has been a subject of sustained interest for many years. We demonstrate the universality of leading loga…
Colour structure of next-to-eikonal correlator webs at three loops
Abhinava Danish, Shubham Mishra, Sourav Pal +2
Correlators of Wilson-line, which capture eikonal contributions, are known to exponentiate in non-abelian gauge theories, and their logarithms can be organised in terms of collecti…
CWebGen -- A tool to study colour structure of scattering amplitudes in IR limit
Neelima Agarwal, Sourav Pal, Aditya Srivastav +1
Infrared singularities in perturbative Quantum Chromodynamics (QCD) are captured by the Soft function, which can be calculated efficiently using Feynman diagrams known as webs. The…
Soft quark effects on H+jet production at NLP accuracy
Sourav Pal, Satyajit Seth
We define soft quark operators that enable construction of colour-ordered helicity amplitudes out of the non-radiative ones. We explore these operators for Higgs plus one jet produ…
On Higgs+jet production at next-to-leading power accuracy
Sourav Pal, Satyajit Seth
We present computation of the next-to-leading power corrections for Higgs plus one jet production in a hadron collider via gluon fusion channel. Shifting of spinors in the helicity…