6533b7d6fe1ef96bd126655e
RESEARCH PRODUCT
Dispersion relation formalism for the two-photon exchange correction to elastic muon-proton scattering: elastic intermediate state
Marc VanderhaeghenOleksandr Tomalaksubject
Physics and Astronomy (miscellaneous)Nuclear TheoryFOS: Physical scienceslcsh:Astrophysics01 natural sciencesNuclear Theory (nucl-th)High Energy Physics - Phenomenology (hep-ph)Two-photon excitation microscopyDispersion relation0103 physical scienceslcsh:QB460-466Intermediate statelcsh:Nuclear and particle physics. Atomic energy. RadioactivityNuclear Experiment (nucl-ex)010306 general physicsEngineering (miscellaneous)Nuclear ExperimentPhysicsMuon010308 nuclear & particles physicsScatteringSubtractionHigh Energy Physics - PhenomenologyAmplitudeQuantum electrodynamicslcsh:QC770-798Leptondescription
We evaluate the two-photon exchange correction to the unpolarized cross section in the elastic muon-proton scattering within dispersion relations. One of the six independent invariant amplitudes requires a subtraction. We fix the subtraction function to the model estimate of the full two-photon exchange at one of three MUSE beam energies and make a prediction for the two other energies. Additionally, we present single and double polarization observables accounting for the lepton mass.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-06-01 |