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Lowest-lying baryon masses in covariant SU(3)- flavor chiral perturbation theory
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Lowest-lying baryon masses in covariant SU(3)- flavor chiral perturbation theory
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| dc.contributor.author | Martín Camalich, Jorge | |
| dc.contributor.author | Geng, Li Sheng | |
| dc.contributor.author | Vicente Vacas, Manuel José | |
| dc.date.accessioned | 2014-10-29T12:02:05Z | |
| dc.date.available | 2014-10-29T12:02:05Z | |
| dc.date.issued | 2010 | |
| dc.identifier.citation | Martín Camalich, Jorge Geng, Li Sheng Vicente Vacas, Manuel José 2010 Lowest-lying baryon masses in covariant SU(3)- flavor chiral perturbation theory Physical Review D 82 7 074504 | |
| dc.identifier.uri | http://hdl.handle.net/10550/39487 | |
| dc.description.abstract | We present an analysis of the baryon-octet and -decuplet masses using covariant SU(3)-flavor chiral perturbation theory up to next-to-leading order. Besides the description of the physical masses we address the problem of the lattice QCD extrapolation. Using the PACS-CS Collaboration data we show that a good description of the lattice points can be achieved at next-to-leading order with the covariant loop amplitudes and phenomenologically determined values for the meson-baryon couplings. Moreover, the extrapolation to the physical point up to this order is found to be better than the linear one given at leading-order by the Gell-Mann-Okubo approach. The importance that a reliable combination of lattice QCD and chiral perturbation theory may have for hadron phenomenology is emphasized with the prediction of the pion-baryon and strange-baryon sigma terms. | |
| dc.language.iso | eng | |
| dc.relation.ispartof | Physical Review D, 2010, vol. 82, num. 7, p. 074504 | |
| dc.subject | Física | |
| dc.title | Lowest-lying baryon masses in covariant SU(3)- flavor chiral perturbation theory | |
| dc.type | journal article | es_ES |
| dc.date.updated | 2014-10-29T12:02:05Z | |
| dc.identifier.doi | 10.1103/PhysRevD.82.074504 | |
| dc.identifier.idgrec | 061896 | |
| dc.rights.accessRights | open access | es_ES |
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