Chiral multiplets versus parity doublets in highly excited baryons

It has recently been suggested that the observed parity doublet structure seen in the spectrum of highly excited baryons may be due to effective chiral restoration for these states. However, if chiral symmetry is effectively restored for these states, one would expect that in some situation the states form chiral multiplets rather than simple parity doublets. Here we show that the available spectroscopic data for nonstrange baryons in the $\sim$ 2 GeV range is consistent with excited baryons approximately falling into $(1/2,1) \oplus (1, 1/2)$ representation of $SU(2)_L \times SU(2)_R$ with approximate degeneracy between positive and negative parity $N$ and $\Delta$ resonances of the same spin.