The Goldberger-Treiman discrepancy in SU(3)

The Goldberger-Treiman discrepancy in SU(3) is analyzed in the framework of heavy baryon chiral perturbation theory (HBChPT). It is shown that the discrepancy at leading order is entirely given by counterterms from the order p<SUP>3</SUP> Lagrangian, and that the first subleading correct...

Descripción completa

Guardado en:
Detalles Bibliográficos
Autores principales: Goity, José L., Lewis, Randy, Schvellinger, Martín Alejandro, Zhang, Longzhe
Formato: Articulo Preprint
Lenguaje:Inglés
Publicado: 1999
Materias:
Física
Particle physics
Physics
Perturbation theory (quantum mechanics)
Symmetry breaking
Heavy baryon chiral perturbation theory
Order (ring theory)
Lagrangian
Current algebra
Order (group theory)
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/123315
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-123315
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Particle physics
Physics
Perturbation theory (quantum mechanics)
Symmetry breaking
Heavy baryon chiral perturbation theory
Order (ring theory)
Lagrangian
Current algebra
Particle physics
Order (group theory)
Heavy baryon chiral perturbation theory
Lagrangian
spellingShingle Física
Particle physics
Physics
Perturbation theory (quantum mechanics)
Symmetry breaking
Heavy baryon chiral perturbation theory
Order (ring theory)
Lagrangian
Current algebra
Particle physics
Order (group theory)
Heavy baryon chiral perturbation theory
Lagrangian
Goity, José L.
Lewis, Randy
Schvellinger, Martín Alejandro
Zhang, Longzhe
The Goldberger-Treiman discrepancy in SU(3)
topic_facet Física
Particle physics
Physics
Perturbation theory (quantum mechanics)
Symmetry breaking
Heavy baryon chiral perturbation theory
Order (ring theory)
Lagrangian
Current algebra
Particle physics
Order (group theory)
Heavy baryon chiral perturbation theory
Lagrangian
description The Goldberger-Treiman discrepancy in SU(3) is analyzed in the framework of heavy baryon chiral perturbation theory (HBChPT). It is shown that the discrepancy at leading order is entirely given by counterterms from the order p<SUP>3</SUP> Lagrangian, and that the first subleading corrections are suppressed by two powers in the HBChPT expansion. These subleading corrections include meson-loop contributions as well as counterterms from the order p<SUP>5</SUP> Lagrangian. Some one-loop contributions are calculated and found to be small. Using the three discrepancies (πNN, KNλ and KNΣ) which can be extracted from existing experimental data, the authors find that the HBChPT calculation favors the smaller g(πNN) values obtained in recent partial wave analyses.
format Articulo
Preprint
author Goity, José L.
Lewis, Randy
Schvellinger, Martín Alejandro
Zhang, Longzhe
author_facet Goity, José L.
Lewis, Randy
Schvellinger, Martín Alejandro
Zhang, Longzhe
author_sort Goity, José L.
title The Goldberger-Treiman discrepancy in SU(3)
title_short The Goldberger-Treiman discrepancy in SU(3)
title_full The Goldberger-Treiman discrepancy in SU(3)
title_fullStr The Goldberger-Treiman discrepancy in SU(3)
title_full_unstemmed The Goldberger-Treiman discrepancy in SU(3)
title_sort goldberger-treiman discrepancy in su(3)
publishDate 1999
url http://sedici.unlp.edu.ar/handle/10915/123315
work_keys_str_mv AT goityjosel thegoldbergertreimandiscrepancyinsu3
AT lewisrandy thegoldbergertreimandiscrepancyinsu3
AT schvellingermartinalejandro thegoldbergertreimandiscrepancyinsu3
AT zhanglongzhe thegoldbergertreimandiscrepancyinsu3
AT goityjosel goldbergertreimandiscrepancyinsu3
AT lewisrandy goldbergertreimandiscrepancyinsu3
AT schvellingermartinalejandro goldbergertreimandiscrepancyinsu3
AT zhanglongzhe goldbergertreimandiscrepancyinsu3
bdutipo_str Repositorios
_version_ 1764820449295859713

Ejemplares similares