[RBRC seminar] Higher order electroweak radiative corrections in lepton-proton scattering using covariant approach
by
2-160
https://bnl.zoomgov.com/j/1600983728?pwd=RAD7OLcqre7Ycsp6JfFp6HAnpyLxex.1
We perform detailed calculations of electroweak radiative corrections to parity violating electron scattering with a proton target up to quadratic and reducible two-loop level using a covariant approach. Our numerical results are presented at energies relevant for a variety of existing and proposed experimental programs such as $Q_{\text{weak}}$, P2 and experiments at the Electron-Ion Collider. Analysis shows that such corrections at the next-to-next-to-leading order are quite significant and have to be included in searches of physics beyond the standard model, matching the increasing precision of the future experimental programs at low-energy scales. We have developed various computational techniques in this work which have been checked with the higher-order QED corrections in $A_{PV}$. Our analytical and programming routines show considerable promise for extension and applications toward the experiments which are searching for physics beyond the Standard Model. In the next phase, we plan to refine this analysis by incorporating more sophisticated models of hadronic couplings to vector bosons. This will include updated parametrizations of nucleon form factors, accounting for deviations from the dipole form reported in recent studies. In the future, we would also like to further extend this work by considering a polarized proton target in the case of both elastic and inelastic scattering scenarios. This will be achieved by calculating a polarized hadronic tensor at higher momentum transfer.