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Title: Partonic calculation of the two-photon exchange contribution to elastic electron-proton scattering at large momentum transfer

Journal Article ·
OSTI ID:822203

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 process on the nucleon to the generalized parton distributions which also enter in other wide angle scattering processes. We find that when taking the polarization transfer determinations of the form factors as input, adding in the 2 photon correction, does reproduce the Rosenbluth data.

Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE Office of Energy Research (ER) (US)
DOE Contract Number:
AC05-84ER40150
OSTI ID:
822203
Report Number(s):
JLAB-THY-04-10; DOE/ER/40150-2612; TRN: US0401199
Resource Relation:
Other Information: No journal information given for this preprint; PBD: 1 Mar 2004
Country of Publication:
United States
Language:
English