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00925njm 22002777a 4500 dc Llanes Estrada, Felipe José author Bicudo, Pedro author Cardoso, M author 2009-08-28 We argue that three-quark excited states naturally group into quartets, split into two parity doublets, and that the mass splittings between these parity partners decrease higher up in the baryon spectrum. This decreasing mass difference can be used to probe the running quark mass in the midinfrared power-law regime. A measurement of masses of high-partial-wave resonances should be sufficient to unambiguously establish the approximate degeneracy. We test this concept with the first computation of excited high-j baryon masses in a chirally invariant quark model. 0031-9007 10.1103/PhysRevLett.103.092003 https://hdl.handle.net/20.500.14352/43951 http://dx.doi.org/10.1103/PhysRevLett.103.092003 http://prl.aps.org Probing the infrared quark mass from highly excited baryons