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Two-Photon Physics in Hadronic Processes
Two-Photon Physics in Hadronic Processes
- Source :
- Annual Review of Nuclear and Particle Science. 57:171-204
- Publication Year :
- 2007
- Publisher :
- Annual Reviews, 2007.
-
Abstract
- Two-photon exchange contributions to elastic electron-scattering are reviewed. The apparent discrepancy in the extraction of elastic nucleon form factors between unpolarized Rosenbluth and polarization transfer experiments is discussed, as well as the understanding of this puzzle in terms of two-photon exchange corrections. Calculations of such corrections both within partonic and hadronic frameworks are reviewed. In view of recent spin-dependent electron scattering data, the relation of the two-photon exchange process to the hyperfine splitting in hydrogen is critically examined. The imaginary part of the two-photon exchange amplitude as can be accessed from the beam normal spin asymmetry in elastic electron-nucleon scattering is reviewed. Further extensions and open issues in this field are outlined.<br />Review prepared for Annual Review of Nuclear and Particle Science; 41 pages, 21 figures
- Subjects :
- Physics
Nuclear and High Energy Physics
Particle physics
010308 nuclear & particles physics
Scattering
media_common.quotation_subject
Hadron
FOS: Physical sciences
01 natural sciences
Asymmetry
High Energy Physics - Phenomenology
High Energy Physics - Phenomenology (hep-ph)
Amplitude
0103 physical sciences
Two-photon physics
010306 general physics
Nucleon
Hyperfine structure
Electron scattering
media_common
Subjects
Details
- ISSN :
- 15454134 and 01638998
- Volume :
- 57
- Database :
- OpenAIRE
- Journal :
- Annual Review of Nuclear and Particle Science
- Accession number :
- edsair.doi.dedup.....ed4176d8254ac4ffb0f4d24f004dc489
- Full Text :
- https://doi.org/10.1146/annurev.nucl.57.090506.123116