Abstract
Lepton-nucleon elastic scattering, using the one-photon and one-scalar-boson exchange mechanisms considering all possible polarizations, is used to study searches for a new scalar boson and suggest new measurements of the nucleon form factors. A new light scalar boson, which feebly couples to leptons and nucleons, may account for the proton radius and muon puzzles. We show that the scalar boson produces relatively large effects in a certain kinematic region when using sufficient control of lepton and nucleon spin polarization. We generalize current techniques to measure the ratio and present a new method to separately measure and using polarized incoming and outgoing muons.
- Received 4 August 2015
DOI:https://doi.org/10.1103/PhysRevC.92.035209
©2015 American Physical Society