Observation of Narrow $N^+(1685)$ and $N^0(1685)$ Resonances in $Î³N \to Î·ÏN$ Reactions

arXiv:1705.05177 · doi:10.1134/S0021364017230023

Abstract

Observation of a narrow structure at $W\sim 1.68$ GeV in the excitation functions of some photon- and pion-induced reactions may signal a new narrow isospin-1/2 $N(1685)$ resonance. New data on the $Î³N \to ÏÎ·N$ reactions from GRAAL seems to reveal the signals of both $N^+(1685)$ and $N^0(1685)$ resonances.

Published version

Observation of Narrow $N^+(1685)$ and $N^0(1685)$ Resonances in $Î³N \to Î·ÏN$ Reactions

Abstract

Observation of Narrow $N^+(1685)$ and $N^0(1685)$ Resonances in $Î³N \to Î·ÏN$ Reactions