N⁎→Nη′ decays from photoproduction of η′-mesons off protons
| Autor: | A.V. Anisovich, V. Burkert, P.M. Collins, M. Dugger, E. Klempt, V.A. Nikonov, B.G. Ritchie, A.V. Sarantsev, U. Thoma |
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| Jazyk: | angličtina |
| Rok vydání: | 2017 |
| Předmět: | |
| Zdroj: | Physics Letters B, Vol 772, Iss C, Pp 247-252 (2017) |
| Druh dokumentu: | article |
| ISSN: | 0370-2693 1873-2445 |
| DOI: | 10.1016/j.physletb.2017.06.052 |
| Popis: | 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. |
| Databáze: | Directory of Open Access Journals |
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