Hadronic Spectrum of a Holographic Dual of QCD

Details Hadronic Spectrum of a Holographic Dual of QCD Hadronic Spectrum of a Holographic Dual of QCD

2005-01-05

arxiv.org/abs/hep-th/0501022v4

Phys.Rev.Lett.94:201601,2005

Physics

High Energy Physics

High Energy Physics - Theory

4 pages, REVTeX4, 2 figures. Version published in Phys. Rev. Lett

Scientific paper

10.1103/PhysRevLett.94.201601

We compute the spectrum of light hadrons in a holographic dual of QCD defined on $AdS_5 \times S^5$ which has conformal behavior at short distances and confinement at large interquark separation. Specific hadrons are identified by the correspondence of string modes with the dimension of the interpolating operator of the hadron's valence Fock state. Higher orbital excitations are matched quanta to quanta with fluctuations about the AdS background. Since only one parameter, the QCD scale $\Lambda_{QCD}$, is used, the agreement with the pattern of physical states is remarkable. In particular, the ratio of Delta to nucleon trajectories is determined by the ratio of zeros of Bessel functions.

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