Preliminary results for the helicity asymmetry E for η photoproduction on the proton

B. T. Morrison, Michael Dugger, Barry Ritchie

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Scopus citations

Abstract

Polarization observables are an important tool for clarifying the nucleon resonance spectrum. No previous measurements for double polarization asymmetries have been published for η photoproduction. Double polarization measurements have been made at Jefferson Lab using a polarized photon beam and protons in a polarized frozen spin target (FROST). Data were taken during the first running period of FROST using the CLAS detector with photon energies from 0.33 to 2.35 GeV. Preliminary results for the E polarization observable for eta meson photoproduction from the proton at threshold and above, along with comparisons to several theoretical predictions are presented.

Original languageEnglish (US)
Title of host publication8th International Workshop on the Physics of Excited Nucleons, NSTAR 2011
Pages421-424
Number of pages4
DOIs
StatePublished - Dec 1 2012
Event8th International Workshop on the Physics of Excited Nucleons, NSTAR 2011 - Newport News, VA, United States
Duration: May 17 2011May 20 2011

Publication series

NameAIP Conference Proceedings
Volume1432
ISSN (Print)0094-243X
ISSN (Electronic)1551-7616

Other

Other8th International Workshop on the Physics of Excited Nucleons, NSTAR 2011
CountryUnited States
CityNewport News, VA
Period5/17/115/20/11

Keywords

  • Meson production
  • Partial-wave analysis
  • Photoproduction reactions
  • Polarization in interactions and scattering

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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    Morrison, B. T., Dugger, M., & Ritchie, B. (2012). Preliminary results for the helicity asymmetry E for η photoproduction on the proton. In 8th International Workshop on the Physics of Excited Nucleons, NSTAR 2011 (pp. 421-424). (AIP Conference Proceedings; Vol. 1432). https://doi.org/10.1063/1.3701263