scholarly journals First Measurement of the E Double-polarization Observable for the γη to Κ+Σ- with CLAS & a New Forward Tagger Hodoscope for CLAS12

2016 ◽  
Author(s):  
Jamie Fleming
Keyword(s):  
Polarization Observable ◽  
Double Polarization

scholarly journals Measurement of the double polarization observable G in π[sup 0]-and η-photoproduction

2010 ◽  
Author(s):  
Annika Thiel ◽  
Volker Crede ◽  
Paul Eugenio ◽  
A. Ostrovidov ◽  
Keyword(s):  
Polarization Observable ◽  
Double Polarization

scholarly journals Double-polarization observable G in neutral-pion photoproduction off the proton

2017 ◽  
Vol 53 (1) ◽  
Author(s):  
A. Thiel ◽  
◽  
H. Eberhardt ◽  
M. Lang ◽  
F. Afzal ◽  
...  
Keyword(s):  
Neutral Pion ◽  
Pion Photoproduction ◽  
Polarization Observable ◽  
Double Polarization

MEASUREMENT OF THE DOUBLE POLARIZATION OBSERVABLE E IN π0 AND η PHOTOPRODUCTION OFF PROTONS WITH THE CBELSA/TAPS EXPERIMENT

2014 ◽  
Vol 26 ◽  
pp. 1460112
Author(s):  
◽  
M. GOTTSCHALL ◽  
J. MÜLLER
Keyword(s):  
Partial Wave ◽  
Electron Accelerator ◽  
Neutral Pion ◽  
State Of The Art ◽  
Polarization Observable ◽  
Photon Beam ◽  
Neutral Meson ◽  
Meson Photoproduction ◽  
Circularly Polarized ◽  
Double Polarization

Double polarization experiments using a longitudinally or transversely polarized frozen-spin-butanol target and a linearly or circularly polarized photon beam were performed with the CBELSA/TAPS experiment at the electron accelerator ELSA. With its nearly 4π angular coverage, this setup is very well suited to study neutral meson photoproduction off the nucleon up to beam energies of 3.2 GeV. Results obtained for the double polarization observable E in neutral pion and eta photoproduction show the large sensitivity of the data on the contributing resonances. If the data are compared to the predictions of state of the art partial wave analyses, large discrepancies are observed.

scholarly journals Comment on “Well-Established Nucleon Resonances Revisited by Double-Polarization Measurements”

2013 ◽  
Vol 110 (16) ◽  
Author(s):  
Ron L. Workman ◽  
Mark W. Paris ◽  
William J. Briscoe ◽  
Igor I. Strakovsky
Keyword(s):  
Polarization Measurements ◽  
Nucleon Resonances ◽  
Double Polarization
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