Actions for QCD-like strings

Details Actions for QCD-like strings Actions for QCD-like strings

1996-01-02

arxiv.org/abs/hep-th/9601002v1

Int.J.Mod.Phys. A13 (1998) 381-392

Physics

High Energy Physics

High Energy Physics - Theory

14 pg., plain tex, other formats available at http://insti.physics.sunysb.edu/~siegel/preprints or at ftp://max.physics.suny

Scientific paper

10.1142/S0217751X98000160

We introduce a random lattice corresponding to ordinary Feynman diagrams, with 1/p-squared propagators instead of the Gaussians used in the usual strings. The continuum limit defines a new type of string action with two worldsheet metrics, one Minkowskian and one Euclidean. The propagators correspond to curved lightlike paths with respect to the Minkowskian worldsheet metric. Spacetime dimensionality of four is implied not only as the usual critical dimension of renormalizable quantum field theory, but also from T-duality.

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