The two-photon exchange contribution to elastic electron-nucleon scattering at large momentum transfer
Abstract
We estimate the two-photon exchange contribution to elastic electron-proton scattering at large momentum transfer by using a quark-parton representation of virtual Compton scattering. We thus can relate the two-photon exchange amplitude to the generalized parton distributions which also enter in other wide angle scattering processes. We find that the interference of one- and two-photon exchange contribution is able to substantially resolve the difference between electric form factor measurements from Rosenbluth and polarization transfer experiments.
- 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:
- 836264
- Report Number(s):
- JLAB-THY-05-297; DOE/ER/40150-3071
TRN: US0500555
- DOE Contract Number:
- AC05-84ER40150
- Resource Type:
- Journal Article
- Resource Relation:
- Other Information: No journal information given for this preprint; PBD: 1 Jan 2005
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; AMPLITUDES; COMPTON EFFECT; FORM FACTORS; MOMENTUM TRANSFER; PARTONS; POLARIZATION; SCATTERING
Citation Formats
Afanasev, Andrei V, Brodsky, Stanley J, Carlson, Carl E, Chen, Yu-Chun, and Vanderhaeghen, Marc. The two-photon exchange contribution to elastic electron-nucleon scattering at large momentum transfer. United States: N. p., 2005.
Web.
Afanasev, Andrei V, Brodsky, Stanley J, Carlson, Carl E, Chen, Yu-Chun, & Vanderhaeghen, Marc. The two-photon exchange contribution to elastic electron-nucleon scattering at large momentum transfer. United States.
Afanasev, Andrei V, Brodsky, Stanley J, Carlson, Carl E, Chen, Yu-Chun, and Vanderhaeghen, Marc. Sat .
"The two-photon exchange contribution to elastic electron-nucleon scattering at large momentum transfer". United States. https://www.osti.gov/servlets/purl/836264.
@article{osti_836264,
title = {The two-photon exchange contribution to elastic electron-nucleon scattering at large momentum transfer},
author = {Afanasev, Andrei V and Brodsky, Stanley J and Carlson, Carl E and Chen, Yu-Chun and Vanderhaeghen, Marc},
abstractNote = {We estimate the two-photon exchange contribution to elastic electron-proton scattering at large momentum transfer by using a quark-parton representation of virtual Compton scattering. We thus can relate the two-photon exchange amplitude to the generalized parton distributions which also enter in other wide angle scattering processes. We find that the interference of one- and two-photon exchange contribution is able to substantially resolve the difference between electric form factor measurements from Rosenbluth and polarization transfer experiments.},
doi = {},
url = {https://www.osti.gov/biblio/836264},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2005},
month = {1}
}
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