4.8 Article

First Measurements of the Double-Polarization Observables F, P, and H in ω Photoproduction off Transversely Polarized Protons in the N* Resonance Region

期刊

PHYSICAL REVIEW LETTERS
卷 122, 期 16, 页码 -

出版社

AMER PHYSICAL SOC
DOI: 10.1103/PhysRevLett.122.162301

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资金

  1. U.S. Department of Energy, Office of Science, Office of Nuclear Physics [DE-FG02-92ER40735, DE-AC05-06OR23177]
  2. U.S. National Science Foundation
  3. State Committee of Science of Republic of Armenia
  4. Chilean Comision Nacional de Investigacion Cientifica y Tecnologica
  5. Italian Istituto Nazionale di Fisica Nucleare
  6. French Centre National de la Recherche Scientifique
  7. French Commissariat a lEnergie Atomique
  8. Scottish Universities Physics Alliance (SUPA)
  9. United Kingdom Science and Technology Facilities Council (STFC)
  10. National Research Foundation of Korea
  11. Deutsche Forschungsgemeinschaft [SFB/TR110]
  12. Russian Science Foundation [16-12-10267]
  13. National Natural Science Foundation of China [11475181, 11635009]
  14. Science and Technology Facilities Council [ST/T002077/1] Funding Source: researchfish
  15. STFC [ST/P004458/1, ST/T002077/1] Funding Source: UKRI
  16. U.S. Department of Energy (DOE) [DE-FG02-92ER40735] Funding Source: U.S. Department of Energy (DOE)

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First measurements of double-polarization observables in omega photoproduction off the proton are presented using transverse target polarization and data from the CEBAF Large Acceptance Spectrometer (CLAS) FROST experiment at Jefferson Lab. The beam-target asymmetry F has been measured using circularly polarized, tagged photons in the energy range 1200-2700 MeV, and the beam-target asymmetries H and P have been measured using linearly polarized, tagged photons in the energy range 1200-2000 MeV. These measurements significantly increase the database on polarization observables. The results are included in two partial-wave analyses and reveal significant contributions from several nucleon (N*) resonances. In particular, contributions from new N* resonances listed in the Review of Particle Properties are observed, which aid in reaching the goal of mapping out the nucleon resonance spectrum.

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