Chiral dynamics of baryons in a Lorentz covariant quark model; Physical Review D; Vol. 73, iss. 11
| Parent link: | Physical Review D: covering particles, fields, gravitation, and cosmology.— , 1958- Vol. 73, iss. 11.— 2006.— [114021, 32 p.] |
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| Weitere Verfasser: | , , , |
| Zusammenfassung: | Title screen We develop a manifestly Lorentz covariant chiral quark model for the study of baryons as bound states of constituent quarks dressed by a cloud of pseudoscalar mesons. The approach is based on a nonlinear chirally symmetric Lagrangian, which involves effective degrees of freedom—constituent quarks and the chiral (pseudoscalar meson) fields. In a first step, this Lagrangian can be used to perform a dressing of the constituent quarks by a cloud of light pseudoscalar mesons and other heavy states using the calculational technique of infrared dimensional regularization of loop diagrams. We calculate the dressed transition operators with a proper chiral expansion which are relevant for the interaction of quarks with external fields in the presence of a virtual meson cloud. In a second step, these dressed operators are used to calculate baryon matrix elements. Applications are worked out for the masses of the baryon octet, the meson-nucleon sigma terms, the magnetic moments of the baryon octet, the nucleon charge radii, the strong vector-meson-nucleon couplings, and the full momentum dependence of the electromagnetic form factors of the nucleon Режим доступа: по договору с организацией-держателем ресурса |
| Sprache: | Englisch |
| Veröffentlicht: |
2006
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| Schlagworte: | |
| Online-Zugang: | https://doi.org/10.1103/PhysRevD.73.114021 |
| Format: | Elektronisch Buchkapitel |
| KOHA link: | https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=657351 |
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| 200 | 1 | |a Chiral dynamics of baryons in a Lorentz covariant quark model |f A. Faessler [et al] | |
| 203 | |a Text |c electronic | ||
| 300 | |a Title screen | ||
| 320 | |a [References: 94 tit.] | ||
| 330 | |a We develop a manifestly Lorentz covariant chiral quark model for the study of baryons as bound states of constituent quarks dressed by a cloud of pseudoscalar mesons. The approach is based on a nonlinear chirally symmetric Lagrangian, which involves effective degrees of freedom—constituent quarks and the chiral (pseudoscalar meson) fields. In a first step, this Lagrangian can be used to perform a dressing of the constituent quarks by a cloud of light pseudoscalar mesons and other heavy states using the calculational technique of infrared dimensional regularization of loop diagrams. We calculate the dressed transition operators with a proper chiral expansion which are relevant for the interaction of quarks with external fields in the presence of a virtual meson cloud. In a second step, these dressed operators are used to calculate baryon matrix elements. Applications are worked out for the masses of the baryon octet, the meson-nucleon sigma terms, the magnetic moments of the baryon octet, the nucleon charge radii, the strong vector-meson-nucleon couplings, and the full momentum dependence of the electromagnetic form factors of the nucleon | ||
| 333 | |a Режим доступа: по договору с организацией-держателем ресурса | ||
| 461 | |t Physical Review D |o covering particles, fields, gravitation, and cosmology |o Scientific Journal |d 1958- | ||
| 463 | |t Vol. 73, iss. 11 |v [114021, 32 p.] |d 2006 | ||
| 610 | 1 | |a электронный ресурс | |
| 610 | 1 | |a труды учёных ТПУ | |
| 610 | 1 | |a ядерная физика | |
| 701 | 1 | |a Faessler |b A. | |
| 701 | 1 | |a Gutsche |b Th. | |
| 701 | 1 | |a Lyubovitskiy (Lyubovitskij) |b V. E. |c physicist |c Professor of Tomsk Polytechnic University, Doctor of physical and mathematical sciences, Professor of the University of Tubingen (Germany) |f 1963- |g Valery Efimovich |3 (RuTPU)RU\TPU\pers\33385 |9 17080 | |
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| 856 | 4 | |u https://doi.org/10.1103/PhysRevD.73.114021 | |
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