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High Energy Physics - Phenomenology

arXiv:hep-ph/0510023 (hep-ph)
[Submitted on 3 Oct 2005 (v1), last revised 13 Jan 2006 (this version, v2)]

Title:The A5 and the pion field

Authors:Johannes Hirn (IFIC, U. Valencia), Veronica Sanz (U. Granada)
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Abstract: In this talk, an SU(Nf)xSU(Nf)Yang-Mills model with a compact extra-dimension is used to describe the spin-1 mesons and pions of massless QCD in the large-Nc. The right 4D symmetry and symmetry-breaking pattern is produced by imposing appropriate boundary conditions. The Goldstone boson fields are constructed using a Wilson line. We derive the low-energy limit (chiral lagrangian), discuss rho-meson dominance, sum rules between resonance couplings and the relation with the QCD high-energy behavior. Finally, we provide an analytic expression for the two-point function of vector and axial currents.
Comments: Typos corrected
Subjects: High Energy Physics - Phenomenology (hep-ph)
Report number: FTUV/05-1003, IFIC/05-55, UG-FT-196/05, CAFPE-66/05
Cite as: arXiv:hep-ph/0510023
  (or arXiv:hep-ph/0510023v2 for this version)
  https://doi.org/10.48550/arXiv.hep-ph/0510023

Submission history

From: Johannes Hirn [view email]
[v1] Mon, 3 Oct 2005 15:20:46 UTC (8 KB)
[v2] Fri, 13 Jan 2006 17:38:14 UTC (8 KB)
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