The two-photon exchange experiment at DESY

R. Alarcon; R. Beck; J. C. Bernauer; M. Broering; A. Christopher; E. W. Cline; S. Dhital; B. Dongwi; I. Fernando; M. Finger; M. Finger; I. Friščić; T. Gautam; G. N. Grauvogel; D. K. Hasell; O. Hen; T. Horn; E. Ihloff; R. Johnston; J. Kelsey; M. Kohl; T. Kutz; I. Lavrukhin; S. Lee; W. Lorenzon; S. Lunkenheimer; F. Maas; R. G. Milner; P. Moran; J. Nazeer; T. Patel; M. Rathnayake; R. Raymond; R. P. Redwine; A. Schmidt; U. Schneekloth; D. Sokhan; M. Suresh; C. Vidal; Z. Yang

doi:10.1140/epja/s10050-024-01299-2

The two-photon exchange experiment at DESY

R. Alarcon
, R. Beck
, J. C. Bernauer
, M. Broering
, A. Christopher
, E. W. Cline
, S. Dhital
, B. Dongwi
, I. Fernando
, M. Finger
, M. Finger
, I. Friščić
, T. Gautam
, G. N. Grauvogel
, D. K. Hasell
, O. Hen
, T. Horn
, E. Ihloff
, R. Johnston
, J. Kelsey

M. Kohl, T. Kutz, I. Lavrukhin, S. Lee, W. Lorenzon, S. Lunkenheimer, F. Maas, R. G. Milner, P. Moran, J. Nazeer, T. Patel, M. Rathnayake, R. Raymond, R. P. Redwine, A. Schmidt, U. Schneekloth, D. Sokhan, M. Suresh, C. Vidal, Z. Yang

Physics and Astronomy

Arizona State University
University of Bonn
Massachusetts Institute of Technology
Hampton University
Stony Brook University
Charles University
University of Zagreb
George Washington University
Catholic University of America
University of Michigan, Ann Arbor
Johannes Gutenberg University Mainz
German Electron Synchrotron
University of Glasgow

Research output: Contribution to journal › Article › peer-review

2 Scopus citations

Abstract

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 20 cm 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 times the luminosity achieved by OLYMPUS). The proposed two-photon exchange experiment (TPEX) entails a commissioning run at a beam energy of 2 GeV, 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.

Original language	English
Article number	81
Journal	European Physical Journal A
Volume	60
Issue number	4
DOIs	https://doi.org/10.1140/epja/s10050-024-01299-2
State	Published - Apr 2024

Access to Document

10.1140/epja/s10050-024-01299-2

Cite this

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, I., Gautam, T., Grauvogel, G. N., Hasell, D. K., Hen, O., Horn, T., Ihloff, E., Johnston, R., ... Yang, Z. (2024). The two-photon exchange experiment at DESY. European Physical Journal A, 60(4), Article 81. https://doi.org/10.1140/epja/s10050-024-01299-2

@article{2abcd989048b41a39f26045e4005696c,

title = "The two-photon exchange experiment at DESY",

abstract = "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 20 cm 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 times the luminosity achieved by OLYMPUS). The proposed two-photon exchange experiment (TPEX) entails a commissioning run at a beam energy of 2 GeV, 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.",

author = "R. Alarcon and R. Beck and Bernauer, \{J. C.\} and M. Broering and A. Christopher and Cline, \{E. W.\} and S. Dhital and B. Dongwi and I. Fernando and M. Finger and M. Finger and I. Fri{\v s}{\v c}i{\'c} and T. Gautam and Grauvogel, \{G. N.\} and Hasell, \{D. K.\} and O. Hen and T. Horn and E. Ihloff and R. Johnston and J. Kelsey and M. Kohl and T. Kutz and I. Lavrukhin and S. Lee and W. Lorenzon and S. Lunkenheimer and F. Maas and Milner, \{R. G.\} and P. Moran and J. Nazeer and T. Patel and M. Rathnayake and R. Raymond and Redwine, \{R. P.\} and A. Schmidt and U. Schneekloth and D. Sokhan and M. Suresh and C. Vidal and Z. Yang",

note = "Publisher Copyright: {\textcopyright} The Author(s) 2024.",

year = "2024",

month = apr,

doi = "10.1140/epja/s10050-024-01299-2",

language = "English",

volume = "60",

journal = "European Physical Journal A",

issn = "1434-6001",

number = "4",

}

Alarcon, R, Beck, R, Bernauer, JC, Broering, M, Christopher, A, Cline, EW, Dhital, S, Dongwi, B, Fernando, I, Finger, M, Finger, M, Friščić, I, Gautam, T, Grauvogel, GN, Hasell, DK, 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, RG, Moran, P, Nazeer, J, Patel, T, Rathnayake, M, Raymond, R, Redwine, RP, Schmidt, A, Schneekloth, U, Sokhan, D, Suresh, M, Vidal, C & Yang, Z 2024, 'The two-photon exchange experiment at DESY', European Physical Journal A, vol. 60, no. 4, 81. https://doi.org/10.1140/epja/s10050-024-01299-2

TY - JOUR

T1 - The two-photon exchange experiment at DESY

AU - Alarcon, R.

AU - Beck, R.

AU - Bernauer, J. C.

AU - Broering, M.

AU - Christopher, A.

AU - Cline, E. W.

AU - Dhital, S.

AU - Dongwi, B.

AU - Fernando, I.

AU - Finger, M.

AU - Friščić, I.

AU - Gautam, T.

AU - Grauvogel, G. N.

AU - Hasell, D. K.

AU - Hen, O.

AU - Horn, T.

AU - Ihloff, E.

AU - Johnston, R.

AU - Kelsey, J.

AU - Kohl, M.

AU - Kutz, T.

AU - Lavrukhin, I.

AU - Lee, S.

AU - Lorenzon, W.

AU - Lunkenheimer, S.

AU - Maas, F.

AU - Milner, R. G.

AU - Moran, P.

AU - Nazeer, J.

AU - Patel, T.

AU - Rathnayake, M.

AU - Raymond, R.

AU - Redwine, R. P.

AU - Schmidt, A.

AU - Schneekloth, U.

AU - Sokhan, D.

AU - Suresh, M.

AU - Vidal, C.

AU - Yang, Z.

PY - 2024/4

Y1 - 2024/4

N2 - 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 20 cm 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 times the luminosity achieved by OLYMPUS). The proposed two-photon exchange experiment (TPEX) entails a commissioning run at a beam energy of 2 GeV, 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.

AB - 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 20 cm 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 times the luminosity achieved by OLYMPUS). The proposed two-photon exchange experiment (TPEX) entails a commissioning run at a beam energy of 2 GeV, 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.

UR - https://www.scopus.com/pages/publications/85190125803

U2 - 10.1140/epja/s10050-024-01299-2

DO - 10.1140/epja/s10050-024-01299-2

M3 - Article

AN - SCOPUS:85190125803

SN - 1434-6001

VL - 60

JO - European Physical Journal A

JF - European Physical Journal A

IS - 4

M1 - 81

ER -

The two-photon exchange experiment at DESY

Abstract

Access to Document

Other files and links

Fingerprint

Cite this