5 papers
Radiative Corrections to Elastic Lepton-Proton Scattering with Focus on Two-Photon-Exchange Diagrams
Daniel Crowe, Syed Mehedi Hasan, Doreen Wackeroth
Lepton (electron and muon) scattering experiments are excellent tools to gain insight into the nucleon structure. Elastic electron-proton scattering probes the spatial distribution…
Phase-space integrals through Mellin-Barnes representation
Taushif Ahmed, Syed Mehedi Hasan, Andreas Rapakoulias
We compute angular phase-space integrals with three and four denominators analytically, working within dimensional regularisation via the Mellin-Barnes (MB) representation. The app…
Angular phase-space integrals with four denominators through Mellin--Barnes
Taushif Ahmed, Syed Mehedi Hasan, Andreas Rapakoulias
We compute four-denominator angular phase-space integrals using the Mellin--Barnes (MB) technique in dimensional regularisation. Independent of the scattering process, an angular i…
NNLO phase-space integrals for semi-inclusive deep-inelastic scattering
Taushif Ahmed, Saurav Goyal, Syed Mehedi Hasan +6
We evaluate the phase-space integrals that arise in double real emission diagrams for semi-inclusive deep-inelastic scattering at next-to-next-to-leading order (NNLO) in QCD. Utili…
Phase-space integrals through Mellin-Barnes representation
Taushif Ahmed, Syed Mehedi Hasan, Andreas Rapakoulias
This letter introduces a novel analytical approach to calculating phase-space integrals, crucial for precision in particle physics. We develop a method to compute angular component…