Linear confinement and AdS/QCD
Feb, 2006
14 pages
Published in:
- Phys.Rev.D 74 (2006) 015005
e-Print:
- hep-ph/0602229 [hep-ph]
Report number:
- BUHEP-06-02,
- INT-PUB-06-04
View in:
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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
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