Backward-angle electroproduction of η′ mesons off protons at <i>W</i> = 2.13 GeV and <i>Q</i> 2 = 0.46 (GeV/ <i>c</i> )2
Abstract The electroproduction of η′ mesons from a 1H target at W = 2.13GeV, Q2 = 0.46(GeV/c)2 and $\cos \theta ^{\mathrm{CM}}_{\gamma ^{*}\eta ^{\prime }} \approx -1$ has been experimentally measured. The differential cross section of virtual-photoproduction has been obtained as 4.4 ± 0.8(stat.) ± 0.4(sys.)nb/sr in the One-Photon-Exchange Approximation. This value is one-sixth of that of real-photoproduction at backward angles. A comparison with newly-developed isobar model calculations not only shows validity of the theoretical framewark employed, but also imposes new constraints on coupling strength between the η′p final state and nucleon resonances.
Authors
- D. Androić (ORCID: https://orcid.org/0000-0002-3921-5696)
- C. Keppel (ORCID: https://orcid.org/0000-0002-7516-8292)
- D. Bhetuwal (ORCID: https://orcid.org/0000-0002-1006-9744)
- D. Skoupil (ORCID: https://orcid.org/0009-0000-6058-5627)
- R. Cruz-Torres (ORCID: https://orcid.org/0000-0001-6359-0608)
- J. Bane (ORCID: https://orcid.org/0000-0003-2199-9733)
- K. Aniol
- B. Yale
- A. Camsonne (ORCID: https://orcid.org/0000-0003-4333-2614)
- J. Reinhold (ORCID: https://orcid.org/0000-0001-5876-9654)
- P. Bydžovský (ORCID: https://orcid.org/0000-0003-1497-4562)
- J. Barrow (ORCID: https://orcid.org/0000-0002-7319-3339)
- S. Premathilake
- B. Sawatzky
- Y. Tian (ORCID: https://orcid.org/0009-0004-4759-1984)
- M. Nycz
- N. Lashley-Colthirst
- Kosuke Itabashi (ORCID: https://orcid.org/0000-0002-6766-4704)
- K. Slifer (ORCID: https://orcid.org/0000-0002-6069-6287)
- Yuichi Toyama (ORCID: https://orcid.org/0000-0002-3216-7396)
- W. Henry
- V. Owen (ORCID: https://orcid.org/0000-0003-3943-0975)
- S. Barcus
- F. Hauenstein (ORCID: https://orcid.org/0000-0002-1265-2212)
- T. Gogami
- T. Kutz (ORCID: https://orcid.org/0000-0002-3206-1997)
- C. Palatchi (ORCID: https://orcid.org/0000-0002-4166-8221)
- C. Samanta (ORCID: https://orcid.org/0000-0001-9315-6204)
- J. Mammei
- T. Su
- Vincenzo Bellini (ORCID: https://orcid.org/0000-0001-6906-7463)
- D. Abrams
- Ole Hansen (ORCID: https://orcid.org/0000-0002-6090-8323)
- P. Guèye
- V. M. Rodriguez
- Peter Markowitz
- M. Kaneta (ORCID: https://orcid.org/0000-0001-9326-4109)
- E. Fuchey
- Rasel Das
- F. Garibaldi
- R Michaels
- D Biswas
- K Okuyama
- D Votaw
- S N Nakamura
- D Nguyen
- T J Hague
- C E Hyde
- M Mihovilovič
- S Li
- F Meddi
- J-P Chen
- Z Ye
- A Moyer
- D Trnková
- B Wojtsekhowski
- S Riordan
- T Petkovic
- K Uehara
- S Park
- J Gomez
- D Meekins
- J Williamson
- S Covrig
- S A Wood
- D Chrisman
- K N Suzuki
- X Zheng
- P E Reimer
- C Ayerbe Gayoso
- T Akiyama
- L Tang
- B Pandey
- D W Higinbotham
- G M Urciuoli
- K Gnanvo
- S Nagao
- H Liu
- J Chen
- J Castellanos
- R E McClellan
- S Širca
- J Zhang
- S N Santiesteban
- H Bhatt
- T Gautam
Institutions
- Argonne National Laboratory (US)
- University of Connecticut (US)
- Osaka University of Economics (JP)
- Lawrence Berkeley National Laboratory (US)
- Kent State University (US)
- Hampton University (US)
- University of Ljubljana (SI)
- University of New Hampshire (US)
- William & Mary (US)
- Christopher Newport University (US)
- University of Zagreb (HR)
- Chubu University (JP)
- Virginia Military Institute (US)
- Florida International University (US)
- Johannes Gutenberg University Mainz (DE)
- Tohoku University (JP)
- Kyoto University (JP)
- California State University Los Angeles (US)
- Istituto Superiore di Sanità (IT)
- Knoxville College (US)
- Thomas Jefferson National Accelerator Facility (US)
- Jožef Stefan Institute (SI)
- National Superconducting Cyclotron Laboratory (US)
- Hue University (VN)
- Hue University of Education (VN)
- Czech Academy of Sciences, Nuclear Physics Institute (CZ)
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma I (IT)
- Ana G. Mendez University System (PR)
- University of Virginia (US)
- Indiana University – Purdue University Indianapolis (US)
- Stony Brook University (US)
- Massachusetts Institute of Technology (US)
- Syracuse University (US)
- The University of Tokyo (JP)
- University of Tennessee at Knoxville (US)
- Columbia University (US)
- University of Glasgow (GB)
- Old Dominion University (US)
- Sapienza University of Rome (IT)
- Michigan State University (US)
- The University of Osaka (JP)
- Mississippi State University (US)
Publication Details
- Journal
- Progress of Theoretical and Experimental Physics
- Published
- 2026-03-11
- DOI
- https://doi.org/10.1093/ptep/ptag049
- Primary Topic
- Quantum Chromodynamics and Particle Interactions
- Type
- article
- Field-Weighted Citation Impact
- 0.00