2026-06-27T23:52:37Zhttps://docta.ucm.es/rest/oai/requestoai:docta.ucm.es:20.500.14352/509282023-08-28T05:48:51Zcom_20.500.14352_14col_20.500.14352_15
Docta Complutense
author
Llanes Estrada, Felipe José
author
Bicudo, P.
author
Cardoso, M.
author
Van Cauteren, T.
2023-06-20T10:39:39Z
2023-06-20T10:39:39Z
2009
2100-014X
10.1051/epjconf/20100303012
https://hdl.handle.net/20.500.14352/50928
http://dx.doi.org/10.1051/epjconf/20100303012
http://www.epj-conferences.org
Chiral symmetry in QCD can be simultaneously in Wigner and Goldstone modes, depending on the part of the spectrum examined. The transition regime between both, exploiting for example the onset of parity doubling in the high baryon spectrum, can be used to probe the running quark mass in the mid-IR power-law regime. In passing we also argue that three-quark states naturally group into same-flavor quartets, split into two parity doublets, all splittings decreasing high in the spectrum. We propose that a measurement of masses of high-partial wave Delta∗ resonances should be sufficient to unambiguously establish the approximate degeneracy and see the quark mass running. We test these concepts with the first computation of the spectrum of high-J excited baryons in a chiral-invariant quark model
eng
Atribución 3.0 España
Using highly excited baryons to catch the quark mass
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Llanes-Estrada_FJ26libre.pdf
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Llanes-Estrada_FJ26libre.pdf.txt