Making confining strings out of mesons

Ryuichiro Kitano, Mitsutoshi Nakamura, Naoto Yokoi

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)

Abstract

The light mesons such as π, ρ, ω, f 0, and a 0 are possible candidates of magnetic degrees of freedom, if a magnetic dual picture of QCD exists. We construct a linear sigma model to describe spontaneous breaking of the magnetic gauge group, in which there is a stable vortex configuration of vector and scalar mesons. We numerically examine whether such a string can be interpreted as the confining string. By using meson masses and couplings as inputs, we calculate the tension of the string as well as the strength of the Coulomb force between static quarks. They are found to be consistent with those inferred from the quarkonium spectrum and the Regge trajectories of hadrons. By using the same Lagrangian, the critical temperature of the QCD phase transition is estimated, and a nontrivial flavor dependence is predicted. We also discuss a possible connection between the Seiberg duality and the magnetic model we studied.

Original languageEnglish
Article number014510
JournalPhysical Review D - Particles, Fields, Gravitation and Cosmology
Volume86
Issue number1
DOIs
Publication statusPublished - 2012 Jul 27

ASJC Scopus subject areas

  • Nuclear and High Energy Physics
  • Physics and Astronomy (miscellaneous)

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