Linear confinement and AdS/QCD

Feb, 2006
14 pages
Published in:
  • Phys.Rev.D 74 (2006) 015005
e-Print:
Report number:
  • BUHEP-06-02,
  • INT-PUB-06-04

Citations per year

20062011201620212025020406080
Abstract: (arXiv)
In a theory with linear confinement, such as QCD, the masses squared m^2 of mesons with high spin S or high radial excitation number n are expected, from semiclassical arguments, to grow linearly with S and n. We show that this behavior can be reproduced within a putative 5-dimensional theory holographically dual to QCD (AdS/QCD). With the assumption that such a dual theory exists and describes highly excited mesons as well, we show that asymptotically linear m^2 spectrum translates into a strong constraint on the INFRARED behavior of that theory. In the simplest model which obeys such a constraint we find m^2 ~ (n+S).
  • 14.40.-n
  • 11.25.Tq
  • 12.40.-y
  • quantum chromodynamics
  • confinement: linear
  • space-time: anti-de Sitter
  • meson: mass spectrum
  • rho(770): excited state
  • spin: high
  • duality: holography