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hep-ph2025
Semi-inclusive pion electroproduction at the highest transverse momenta
Andrei Afanasev, Carl E. Carlson
At the energies of present and future electron accelerators designed to study the structure of hadrons, there is a regime where hard pion electroproduction proceeds by a perturbati…
hep-ph2004
Partonic calculation of the two-photon exchange contribution to elastic electron-proton scattering at large momentum transfer
Y. C. Chen, A. Afanasev, S. J. Brodsky +2
We estimate the two-photon exchange contribution to elastic electron-proton scattering at large momentum transfer through the scattering off a parton in the proton. We relate the p…
hep-ph2003
Single-Spin Polarization Effects and the Determination of Timelike Proton Form Factors
S. J. Brodsky, C. E. Carlson, J. R. Hiller +1
We show that measurements of the proton's polarization in electron-positron annihilation to a proton-antiproton pair strongly discriminate between the analyt…