Freiburg 2008 – scientific programme

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T: Fachverband Teilchenphysik

T 16: Beyond the Standard Model (Theorie) II

T 16.5: Talk

Tuesday, March 4, 2008, 17:45–18:00, KGI-HS 1021

Excited hadrons in AdS/QCD — •Michael Beyer¹, Wayne de Paula^1,2, Hilmar Forkel³, and Tobias Frederico² — ¹U Rostock — ²ITA Sao Jose dos Campos — ³U Heidelberg

We construct an approximate holographic dual of QCD. Conformal symmetry breaking and other IR effects are described by deformations of the anti-de Sitter background metric. This framework allows us to reproduce the empirically found square-mass trajectories of universal slope for radially and orbitally excited hadrons. We furthermore investigate whether linear trajectories for excited mesons can be related to the area-law confinement criterion for the Wilson loop, and how to obtain the underlying bulk metric as a solution of the five-dimensional Einstein equation.

[1] H. Forkel, M. Beyer, T. Frederico JHEP 0707:077, 2007.