2018/10/17 by Kuznetsov, V. A., Polyakov, M. V.
#FOS: Physical sciences #High Energy Physics - Phenomenology (hep-ph) #Nuclear Experiment (nucl-ex) #Nuclear Theory (nucl-th)
paper · doi:10.48550/arxiv.1810.07713
We demonstrate that the explanation of the neutron anomaly around W∼ 1685MeV in γN→ ηN reactions provided by the ηMAID2018 isobar model is based on large violation of the flavour SU(3) symmetry in hadron interactions. This is yet another example of how conventional explanation (without invoking exotic narrow nucleon resonance) of the neutron anomaly metamorphoses into unconventional physics picture of hadron interactions. A possibility to mend the flavour SU(3) symmetry for some of resonances in ηMAID model is discussed.