# ${{\boldsymbol N}{(1535)}}$ $\rightarrow$ ${{\boldsymbol N}}{{\boldsymbol \gamma}}$ , ratio A${}^{{{\boldsymbol n}}}_{1/2}/A{}^{{{\boldsymbol p}}}_{1/2}$ INSPIRE search

VALUE (GeV${}^{−1/2}$) DOCUMENT ID TECN
• • • We do not use the following data for averages, fits, limits, etc. • • •
$-0.84$ $\pm0.15$
 1995 B
IPWA
References:
PL B364 1 Extraction of the Ratio of the ${{\mathit N}^{*}{(1535)}}$ Electromagnetic Helicity Amplitudes from ${{\mathit \eta}}$ Photoproduction off Neutrons and Protons