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Scalar form factor of the nucleon and nucleon-scalar meson coupling constant in QCD

T. M. Aliev*,† and M. Savcı‡

  • Physics Department, Middle East Technical University, 06531 Ankara, Turkey

  • *Electronic address: taliev@metu.edu.tr
  • †Permanent address: Institute of Physics, Baku, Azerbaijan
  • ‡Electronic address: savci@metu.edu.tr
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Phys. Rev. D 75, 045006 – Published 8 February, 2007

DOI: https://doi.org/10.1103/PhysRevD.75.045006

Abstract

Scalar form factor of the nucleon is calculated in the framework of light-cone QCD sum rules, using the most general form of the baryon current. Using the result on scalar form factor of the nucleon, the nucleon-scalar σ and a0 meson coupling constants are estimated. Our results on these couplings are in good agreement with the prediction of the external-field QCD sum rules method.

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Phys. Rev. D 75, 045006– Published 8 February, 2007
  • Received 12 December 2006

© 2007 American Physical Society

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