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

Abstract

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.

Authors:
; ; ; ;
Publication Date:
Research Org.:
Thomas Jefferson National Accelerator Facility, Newport News, VA (US)
Sponsoring Org.:
USDOE Office of Energy Research (ER) (US)
OSTI Identifier:
822203
Report Number(s):
JLAB-THY-04-10; DOE/ER/40150-2612
TRN: US0401199
DOE Contract Number:  
AC05-84ER40150
Resource Type:
Journal Article
Resource Relation:
Other Information: No journal information given for this preprint; PBD: 1 Mar 2004
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; FORM FACTORS; MOMENTUM TRANSFER; NUCLEONS; PARTONS; PHOTONS; POLARIZATION; SCATTERING

Citation Formats

Chen, Y C, Afanasev, A, Brodsky, S J, Carlson, C E, and Vanderhaeghen, Marc. Partonic calculation of the two-photon exchange contribution to elastic electron-proton scattering at large momentum transfer. United States: N. p., 2004. Web.
Chen, Y C, Afanasev, A, Brodsky, S J, Carlson, C E, & Vanderhaeghen, Marc. Partonic calculation of the two-photon exchange contribution to elastic electron-proton scattering at large momentum transfer. United States.
Chen, Y C, Afanasev, A, Brodsky, S J, Carlson, C E, and Vanderhaeghen, Marc. Mon . "Partonic calculation of the two-photon exchange contribution to elastic electron-proton scattering at large momentum transfer". United States. https://www.osti.gov/servlets/purl/822203.
@article{osti_822203,
title = {Partonic calculation of the two-photon exchange contribution to elastic electron-proton scattering at large momentum transfer},
author = {Chen, Y C and Afanasev, A and Brodsky, S J and Carlson, C E and Vanderhaeghen, Marc},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2004},
month = {3}
}