1210.5210 (S. S. Afonin)

Generalized Soft Wall Model    [PDF]

S. S. Afonin

We develop an exactly solvable generalization of the soft wall holographic model for the vector mesons. The generalization preserves the ultraviolet and infrared asymptotics of the soft wall model and contains an additional free parameter. This parameter provides an arbitrary intercept in the Regge like spectrum of radial excitations and leads to a substantial modification of asymptotic expansion of the vector correlator at large momentum. The matching to the Operator Product Expansion from QCD allows to make a strong restriction on possible values of the new parameter.

View original: http://arxiv.org/abs/1210.5210