Journalartikel

Jahr der Veröffentlichung: 2018

Zeitschrift: The European Physical Journal A

Bandnummer: 54

Heftnummer: 3

ISSN: 1434-6001

eISSN: 1434-601X

DOI Link: https://doi.org/10.1140/epja/i2018-12465-x

Verlag: Springer

Abstract: 
We present results from a calculation of the electromagnetic transition form factors between ground-state octet and decuplet baryons as well as the octet-only Sigma(0) to Lambda transition. We work in the combined framework of Dyson-Schwinger equations and covariant Bethe-Salpeter equations with all elements, the baryon three-body wave function, the quark propagators and the dressed quark-photon vertex determined from a well-established, momentum dependent approximation for the quark-gluon interaction. We discuss in particular the similarities among the different transitions as well as the differences induced by SU(3)-isospin symmetry breaking. We furthermore provide estimates for the slopes of the electric and magnetic Sigma(0) to Lambda transitions at the zero photon momentum point.

Harvard-Zitierstil: Sanchis-Alepuz, H., Alkofer, R. and Fischer, C. (2018) Electromagnetic transition form factors of baryons in the space-like momentum region, The European Physical Journal A, 54(3), Article 41. https://doi.org/10.1140/epja/i2018-12465-x

APA-Zitierstil: Sanchis-Alepuz, H., Alkofer, R., & Fischer, C. (2018). Electromagnetic transition form factors of baryons in the space-like momentum region. The European Physical Journal A. 54(3), Article 41. https://doi.org/10.1140/epja/i2018-12465-x