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Upper Limit on the Photoproduction Cross Section of the Spin-Exotic $$π$$1(1600)

Journal Article · · Physical Review Letters
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  1. Univ. of Bonn (Germany); The GlueX Collaboration. et al.
  2. Florida State University
  3. Thomas Jefferson National Accelerator Facility
  4. Old Dominion University
  5. William & Mary
  6. Florida International University
  7. Carnegie Mellon University
  8. Florida State University; Springfield College
  9. Indiana University
  10. University of North Carolina at Wilmington
  11. Virginia Tech
  12. The George Washington University
  13. Lamar University
  14. University of Glasgow
  15. National Research Centre Kurchatov Institute
  16. Arizona State University
  17. GSI Helmholtzzentrum für Schwerionenforschung GmbH
  18. University of Connecticut
  19. University of Massachusetts
  20. Institute of High Energy Physics
  21. Duke University
  22. North Carolina A&T State University
  23. Union College
  24. Mount Allison University
  25. A. I. Alikhanyan National Science Laboratory (Yerevan Physics Institute)
  26. The Catholic University of America
  27. National and Kapodistrian University of Athens
  28. University of Regina
  29. Tomsk State University; Tomsk Polytechnic University
  30. Carnegie Mellon University; Washington & Jefferson College
  31. GSI Helmholtzzentrum für Schwerionenforschung GmbH; Ruhr-Universität-Bochum
  32. National Research Nuclear University Moscow Engineering Physics Institute
  33. Norfolk State University
  34. Helmholtz-Institut für Strahlen- und Kernphysik Universität Bonn
  35. Wuhan University
+ Show Author Affiliations
Here, the spin-exotic hybrid meson π1(1600) is predicted to have a large decay rate to the ωππ final state. Using 76.6 pb-1 of data collected with the GlueX detector, we measure the cross sections for the reactions γp → ωπ+ π- p, γp → ωπ0π0 p, and γp → ωπ-π0 Δ++ in the range Eγ = 8 - 10 GeV. Using isospin conservation, we set the first upper limits on the photoproduction cross sections of the π$$^0_1$$(1600) and $$π^-_1$$(1600). We combine these limits with lattice calculations of decay widths and find that photoproduction of η' π is the most sensitive two-body system to search for the π1(1600).
Research Organization:
Thomas Jefferson National Accelerator Facility (TJNAF), Newport News, VA (United States)
Sponsoring Organization:
USDOE; USDOE Office of Science (SC), Nuclear Physics (NP)
Contributing Organization:
The GlueX Collaboration
Grant/Contract Number:
AC02-05CH11231; AC05-06OR23177; FG02-87ER40315
OSTI ID:
2500836
Alternate ID(s):
OSTI ID: 2526281
Report Number(s):
DOE/OR/23177-7538; JLAB-PHY--24-4098
Journal Information:
Physical Review Letters, Journal Name: Physical Review Letters Journal Issue: 26 Vol. 133; ISSN 0031-9007
Publisher:
American Physical Society (APS)Copyright Statement
Country of Publication:
United States
Language:
English

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