Contribution to a conference proceedings/Internal Report

PUBDB-2015-05386

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png $1/N_c$ corrections to the baryon axial vector current in large-$N_c$ chiral perturbation theory

Hernández-Ruiz, M. A. (Corresponding author)

2014
Deutsches Elektronen-Synchrotron, DESY Hamburg

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Please use a persistent id in citations: doi:10.3204/DESY-PROC-2014-04/23

Report No.: DESY-PROC-2014-04

Abstract: We study the effects of the decuplet-octet mass difference for the baryon axial vector current at one-loop order in large-$N_c$ baryon chiral perturbation theory, where $N_c$ is the number of color. The baryon axial vector current is considered within the combined framework of large-$N_c$ baryon chiral perturbation theory and the baryon axial vector couplings are extracted. We extend the $g_A$ analysis by including all effects that are suppressed by $1/N_c^2$ relative to the tree level value, which includes taking into account the nonvanshing decuplet-octet mass difference.

Keyword(s): perturbation theory: chiral ; current: axial-vector ; baryon: chiral ; coupling: axial-vector ; tree approximation ; mass difference ; suppression ; color

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Contributing Institute(s):

1. LHC/ATLAS Experiment (ATLAS)
2. LHC/CMS Experiment (CMS)
3. Uni Hamburg / Experimentalphysik (UNI/EXP)

Research Program(s):

1. 611 - Fundamental Particles and Forces (POF3-611) (POF3-611)

Experiment(s):

1. No specific instrument

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Database coverage:

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Linked articles:

http://join2-wiki.gsi.de/foswiki/pub/Main/Artwork/join2_logo100x88.png Book/Proceedings/Internal Report Schmidt, A. (Editor)>Extern* ; Sander, C. (Editor)DESY*
Proceedings, 20th International Conference on Particles and Nuclei (PANIC 14)
2014Panic2014, Panic2014, HamburgHamburg, Germany, 25 Aug 2014 - 29 Aug 20142014-08-252014-08-29 Hamburg : Deutsches Elektronen-Synchrotron, DESY 1-754 (2014) [10.3204/DESY-PROC-2014-04]2014     Files  Fulltext BibTeX | EndNote: XML, Text | RIS

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