Gauge/string duality and scalar glueball mass ratios

Details Gauge/string duality and scalar glueball mass ratios Gauge/string duality and scalar glueball mass ratios

2002-12-17

arxiv.org/abs/hep-th/0212207v2

JHEP0305:009,2003

Physics

High Energy Physics

High Energy Physics - Theory

5 pages, no figures. References updated. Version published in JHEP

Scientific paper

10.1088/1126-6708/2003/05/009

It has been shown by Polchinski and Strassler that the scaling of high energy QCD scattering amplitudes can be obtained from string theory. They considered an AdS slice as an approximation for the dual space of a confining gauge theory. Here we use this approximation to estimate in a very simple way the ratios of scalar glueball masses imposing Dirichlet boundary conditions on the string dilaton field. These ratios are in good agreement with the results in the literature. We also find that they do not depend on the size of the slice.

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