Quadrupole polarizabilities of the pion in the Nambu–Jona-Lasinio model

2009/08/02 by Brigitte Hiller, Wojciech Broniówski, Wojciech Broniowski +4 · 1 citation
Physics and Astronomy · #Black Holes and Theoretical Physics #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-ph

paper · pdf · doi:10.1016/j.physletb.2009.10.018

published as Phys.Lett.B681:147-150,2009 · 9 pages, 1 fig

arxiv created 2009/08/02 · openalex publication_date 2009/10/01 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/01

Abstract

The electromagnetic dipole and quadrupole polarizabilities of the neutral and charged pions are calculated in the Nambu–Jona-Lasinio model. Our results agree with the recent experimental analysis of these quantities based on dispersion sum rules. Comparison is made with the results from the chiral perturbation theory.

Citations

• Dynamical Model of Elementary Particles Based on an Analogy with Superconductivity. I
• The COMPASS experiment at CERN
• Low-energy photon–photon collisions to two loops revisited
• Dynamical Model of Elementary Particles Based on an Analogy with Superconductivity. II

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