PANIC 2014 - Particles and Nuclei International Conference 2014

1/Nc corrections to the baryon axial vector current in large-Nc chiral perturbation theory

Not scheduled

1m

Main Building (Hamburg University)

Poster 10) Hadrons in medium - hyperons and mesons in nuclear matter

Speaker

Dr MARIA DE LOS ANGELES HERNANDEZ-RUIZ (UNIVERSIDAD AUTONOMA DE ZACATECAS)

Description

We study the effects of the decuplet-octet mass difference for the baryon axial vector current at one-loop order in large-Nc baryon chiral perturbation theory, where Nc is the number of color. The baryon axial vector current is considered within the combined framework of large-Nc 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/N2c relative to the tree level value, which includes taking into account the nonvanshing decuplet-octet mass difference.