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Llanes Estrada, Felipe José and Bicudo, Pedro and Cardoso, M (2009) Probing the infrared quark mass from highly excited baryons. Physical Review Letters, 103 (9). ISSN 0031-9007
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Official URL: http://dx.doi.org/10.1103/PhysRevLett.103.092003
Abstract
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.
Item Type: | Article |
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Additional Information: | © 2009 The American Physical Society. |
Uncontrolled Keywords: | Chiral-Symmetry Breaking, Effective Restoration, Meson Spectrum, Model, Confinement, Lattice, Qcd |
Subjects: | Sciences > Physics |
ID Code: | 22694 |
Deposited On: | 10 Sep 2013 16:39 |
Last Modified: | 20 Apr 2018 18:12 |
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