University of Minnesota
School of Physics & Astronomy

Nuclear Physics Seminar

Wednesday, December 9th 2009
1:25 pm:
Nuclear Physics Seminar in 435 Physics
Speaker: Sean Bartz, University of Minnesota
Subject: Masses of the mesons from a soft wall AdS/QCD model

The AdS/CFT correspondence establishes an effective dictionary between strongly coupled theories and higher-dimensional gravitational theories. This has led to five-dimensional phenomonological models to describe quantum chromodynamics, known as AdS/QCD. Because of the running coupling constant, these models must have a cutoff in the fifth conformal dimension. The specific model studied here is known as a soft wall model, and it uses a dilaton field as an effective cutoff. This results in a realistic mass spectrum for the radial excitations of the lowest-lying mesons.I will describe our model and its successful modeling of the scalar, vector, and axial meson masses. I will also discuss I will also discuss my ongoing work on the pions, and the unique challenges of this sector.

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