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Electromagnetic and axial current form factors and spectroscopy of three-flavor holographic baryons

Ori C. Druks1,*, Pak Hang Chris Lau2,†, and Ismail Zahed1,‡

  • 1Department of Physics and Astronomy, Stony Brook University, Stony Brook, New York 11794-3800, USA
  • 2Center for Theoretical Physics, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, USA

  • *ori.druks@stonybrook.edu
  • †phcl2@mit.edu
  • ‡ismail.zahed@stonybrook.edu
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Phys. Rev. D 99, 054022 – Published 26 March, 2019

DOI: https://doi.org/10.1103/PhysRevD.99.054022

Abstract

We present an analysis of the three-flavor holographic model of QCD associated to a D4/D8 brane configuration, with symmetry breaking induced by a world sheet instanton associated to a closed loop connecting D4−D8−D6−D8¯. We calculate the electromagnetic and axial couplings of all octet and decuplet baryons, as well as several negative parity excitations, with and without symmetry breaking effects, and demonstrate qualitative and quantitative agreement with many available experimental measurements, with marked improvement over the analogous two-flavor models.

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Phys. Rev. D 99, 054022– Published 26 March, 2019
  • Received 6 November 2018
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Published by the American Physical Society under the terms of the Creative Commons Attribution 4.0 International license. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. Funded by SCOAP3.

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