TY - JOUR
T1 - N⁎ → Nη′ decays from photoproduction of η′-mesons off protons
AU - Anisovich, A. V.
AU - Burkert, V.
AU - Collins, P. M.
AU - Dugger, Michael
AU - Klempt, E.
AU - Nikonov, V. A.
AU - Ritchie, Barry
AU - Sarantsev, A. V.
AU - Thoma, U.
N1 - Funding Information:
This work was supported by the Deutsche Forschungsgemeinschaft (SFB/TR110) and by the RSF grant 16-12-10267. Work at Arizona State University was supported by the U. S. National Science Foundation under award PHY-1306737. This material is in part based upon work supported by the U.S. Department of Energy, Office of Science, Office of Nuclear Physics under contract DE-AC05-06OR23177.
Publisher Copyright:
© 2017 The Authors
PY - 2017/9/10
Y1 - 2017/9/10
N2 - A study of the partial-wave content of the γp→η′p reaction in the fourth resonance region is presented, which has been prompted by new measurements of polarization observables for that process. Using the Bonn–Gatchina partial-wave formalism, the incorporation of new data indicates that the N(1895)1/2−, N(1900)3/2+, N(2100)1/2+, and N(2120)3/2− are the most significant contributors to the photoproduction process. New results for the branching ratios of the decays of these more prominent resonances to Nη′ final states are provided; such branches have not been indicated in the most recent edition of the Review of Particle Properties. Based on the analysis performed here, predictions for the helicity asymmetry E for the γp→η′p reaction are presented.
AB - A study of the partial-wave content of the γp→η′p reaction in the fourth resonance region is presented, which has been prompted by new measurements of polarization observables for that process. Using the Bonn–Gatchina partial-wave formalism, the incorporation of new data indicates that the N(1895)1/2−, N(1900)3/2+, N(2100)1/2+, and N(2120)3/2− are the most significant contributors to the photoproduction process. New results for the branching ratios of the decays of these more prominent resonances to Nη′ final states are provided; such branches have not been indicated in the most recent edition of the Review of Particle Properties. Based on the analysis performed here, predictions for the helicity asymmetry E for the γp→η′p reaction are presented.
KW - Baryon spectroscopy
KW - Meson photoproduction
KW - Polarization observables
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U2 - 10.1016/j.physletb.2017.06.052
DO - 10.1016/j.physletb.2017.06.052
M3 - Article
AN - SCOPUS:85021701877
SN - 0370-2693
VL - 772
SP - 247
EP - 252
JO - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
JF - Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
ER -