Baryons and flux tubes in confining gauge theories from brane actions

Curtis Gove Callan, Alberto Güijosa, Konstantin G. Savvidy, OØyvind Tafjord

Research output: Contribution to journalArticle

80 Scopus citations

Abstract

We study baryon configurations in large N non-supersymmetric SU(N) gauge theories, applying the AdS/CFT correspondence, Using the D5-brane world-volume theory in the near-horizon geometry of non-extremal D3-branes, we find embeddings which describe baryonic states in three-dimensional QCD. In particular, we construct solutions corresponding to a baryon made of N quarks, and study what happens when some fraction ν of the total number of quarks are bodily moved to a large spatial separation from the others. The individual clumps of quarks are represented by Born-Infeld string tubes obtained from a D5-brane whose spatial section has topology R × S4. They are connected by a confining color flux tube, described by a portion of the fivebrane that runs very close and parallel to the horizon. We find that this flux tube has a tension with a non-trivial ν-dependence (not previously obtained by other methods). A similar picture is presented for the four-dimensional case.

Original languageEnglish (US)
Pages (from-to)183-200
Number of pages18
JournalNuclear Physics B
Volume555
Issue number1-2
DOIs
StatePublished - Aug 23 1999

All Science Journal Classification (ASJC) codes

  • Nuclear and High Energy Physics

Keywords

  • AdS/CFT
  • Baryon
  • Born-infeld string
  • D-brane

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