2023 CAP Congress / Congrès de l'ACP 2023

(G*) Covariant Approach in Bethe-Heitler process for the calculation of electron-proton Scattering

Jun 19, 2023, 5:00 PM

15m

UNB Tilley Hall (Rm. 205 (max. 85))

Oral Competition (Graduate Student) / Compétition orale (Étudiant(e) du 2e ou 3e cycle) Nuclear Physics / Physique nucléaire (DNP-DPN) (DNP) M3-4 Testing the Standard Model at low and intermediate energies | Tester le modèle standard à des énergies faibles et intermédiaires (DPN)

Speaker

Ms Mahumm Ghaffar (Memorial University of Newfoundland)

Description

In order to search for the physics beyond the Standard Model at the precision frontier, it is sometimes essential to account for Next-to-Next-Leading Order (NNLO) corrections theoretical calculations. Using the covariant approach, we calculated the QED type leptonic tensor up to quadratic (one loop squared) NNLO (alpha cube) order, which can be used for the processes like (electron-proton) and (muon-proton) scattering relevant to MOLLER (background studies) and MUSE experiments, respectively. Recently we have used this approach for a hard photon bremsstrahlung process called "Bethe-Heitler". This is a 2->3 process where an electron scatters with a proton with the emission of a hard photon and is an important example in Quantum Electrodynamics (QED).
In this presentation, I will quickly review covariant approach and provide our latest results for quadratic QED electron-proton scattering along with the Bethe-Heitler process.