Two-photon exchange in elastic electron–proton scattering

Afanasev, A.; Blunden, P. G.; Hasell, D.; Raue, B. A.

doi:10.1016/j.ppnp.2017.03.004

Title: Two-photon exchange in elastic electron–proton scattering

Journal Article · Mon Apr 17 00:00:00 EDT 2017 · Progress in Particle and Nuclear Physics

DOI:https://doi.org/10.1016/j.ppnp.2017.03.004· OSTI ID:1361689

Afanasev, A. ^[1]; Blunden, P. G. ^[2]; Hasell, D. ^[3]; Raue, B. A. ^[4]

George Washington Univ., Washington, DC (United States)
Univ. of Manitoba, Winnipeg, MB (Canada); Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Massachusetts Inst. of Technology (MIT), Cambridge, MA (United States)
Florida Intl Univ., Miami, FL (United States)

Here, we review recent theoretical and experimental progress on the role of two-photon exchange (TPE) in electron-proton scattering at low to moderate momentum transfers. We make a detailed comparison and analysis of the results of competing experiments on the ratio of e⁺p to e^-p elastic scattering cross sections, and of the theoretical calculations describing them. A summary of the current experimental situation is provided, along with an outlook for future experiments.

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Research Organization:: Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Grant/Contract Number:: AC05-06OR23177; SC0013620; FG02-94ER40818

OSTI ID:: 1361689

Alternate ID(s):: OSTI ID: 1397436

Report Number(s):: JLAB-THY-17-2404; DOE/OR/23177-4062; arXiv:1703.03874; PII: S0146641017300352

Journal Information:: Progress in Particle and Nuclear Physics, Vol. 95, Issue C; ISSN 0146-6410

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 61 works

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