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Scientific paper - Original scientific paper
The two-photon exchange experiment at DESY
The European Physical Journal A, 60 (2024), 4; 81. https://doi.org/10.1140/epja/s10050-024-01299-2
Alarcon, R.; Beck, R.; Bernauer, J. C.; Broering, M.; Christopher, A.; Cline, E. W.; Dhital, S.; Dongwi, B.; Fernando, I.; Finger, M.; Finger, M.; Friščić, Ivica; Gautam, T.; Grauvogel, G. N.; Hasell, D. K.; Hen, O.; Horn, T.; Ihloff, E.; Johnston, R.; Kelsey, J.; Kohl, M.; Kutz, T.; Lavrukhin, I.; Lee, S.; Lorenzon, W.; Lunkenheimer, S.; Maas, F.; Milner, R. G.; Moran, P.; Nazeer, J.; Patel, T.; Rathnayake, M.; Raymond, R.; Redwine, R. P.; Schmidt, A.; Schneekloth, U.; Sokhan, D.; Suresh, M.; Vidal, C.; Yang, Z. More authors...

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Alarcon, R., Beck, R., Bernauer, J. C., Broering, M., Christopher, A., Cline, E. W. ... Yang, Z. (2024). The two-photon exchange experiment at DESY. The European Physical Journal A, 60. (4). doi: 10.1140/epja/s10050-024-01299-2

Alarcon, R., et al. "The two-photon exchange experiment at DESY." The European Physical Journal A, vol. 60, no. 4, 2024. https://doi.org/10.1140/epja/s10050-024-01299-2

Alarcon, R., R. Beck, J. C. Bernauer, M. Broering, A. Christopher, E. W. Cline, S. Dhital, et al. "The two-photon exchange experiment at DESY." The European Physical Journal A 60, no. 4 (2024). https://doi.org/10.1140/epja/s10050-024-01299-2

Alarcon, R., et al. (2024) 'The two-photon exchange experiment at DESY', The European Physical Journal A, 60(4). doi: 10.1140/epja/s10050-024-01299-2

Alarcon R, Beck R, Bernauer JC, Broering M, Christopher A, Cline EW, and sur.. The two-photon exchange experiment at DESY. The European Physical Journal A [Internet]. 2024 April 05 [cited 2025 March 28];60(4). doi: 10.1140/epja/s10050-024-01299-2

R. Alarcon, et al., "The two-photon exchange experiment at DESY", The European Physical Journal A, vol. 60, no. 4, April 2024. [Online]. Available at: https://urn.nsk.hr/urn:nbn:hr:217:863759. [Accessed: 28 March 2025]

Metadata
Title (english)The two-photon exchange experiment at DESY
AuthorR. Alarcon
AuthorR. Beck
AuthorJ. C. Bernauer
AuthorM. Broering
AuthorA. Christopher
AuthorE. W. Cline
AuthorS. Dhital
AuthorB. Dongwi
AuthorI. Fernando
AuthorM. Finger
AuthorM. Finger
AuthorIvica Friščić
AuthorT. Gautam
AuthorG. N. Grauvogel
AuthorD. K. Hasell
AuthorO. Hen
AuthorT. Horn
AuthorE. Ihloff
AuthorR. Johnston
AuthorJ. Kelsey
AuthorM. Kohl
AuthorT. Kutz
AuthorI. Lavrukhin
AuthorS. Lee
AuthorW. Lorenzon
AuthorS. Lunkenheimer
AuthorF. Maas
AuthorR. G. Milner
AuthorP. Moran
AuthorJ. Nazeer
AuthorT. Patel
AuthorM. Rathnayake
AuthorR. Raymond
AuthorR. P. Redwine
AuthorA. Schmidt
AuthorU. Schneekloth
AuthorD. Sokhan
AuthorM. Suresh
AuthorC. Vidal
AuthorZ. Yang
Author's institutionUniversity of Zagreb
Faculty of Science
(Department of Physics)
Scientific / art field,
discipline and subdiscipline		NATURAL SCIENCES
Physics
Abstract (english)
We propose a new measurement of the ratio of positron-proton to electron-proton elastic scattering at DESY. The purpose is to determine the contributions beyond single-photon exchange, which are essential for the Quantum Electrodynamic (QED) description of the most fundamental process in hadronic physics. By utilizing a 20cm long liquid hydrogen target in conjunction with the extracted beam from the DESY synchrotron, we can achieve an average luminosity of 2.12×1035 cm−2·s−1 (≈ 200... More times the luminosity achieved by OLYMPUS). The proposed two-photon exchange experiment (TPEX) entails a commissioning run at a beam energy of 2GeV, followed by measurements at 3 GeV, thereby providing new data up to Q2 = 4.6 (GeV/c)2 (twice the range of current measurements). We present and discuss the proposed experimental setup, run plan, and expectations. Less
Keywords (english)
Languageenglish
Publication typeScientific paper - Original scientific paper
Publication statusPublished
Peer reviewPeer review - international
Publication versionPublished version
Journal titleThe European Physical Journal A
Numberingvol. 60, no. 4, 81
e-ISSN1434-601X
DOIhttps://doi.org/10.1140/epja/s10050-024-01299-2
URN:NBNurn:nbn:hr:217:863759
Publication2024-04-05
Document URLhttps://link.springer.com/10.1140/epja/s10050-024-01299-2
Type of resourceText
Access conditionsOpen access
Terms of useLicence Attribution 4.0 International (CC BY 4.0) icon
Public note© The Author(s) 2024. This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/. Received: 10 August 2023. Accepted: 13 March 2024. Published online: 5 April 2024.
Created on2024-07-24 08:33:31
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