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Physical Review D 81 (2010) 115004
An AdS/QCD model from Sen's tachyon action
I. Iatrakis1, E. Kiritsis1, 2, A. Paredes3

We construct a new, simple phenomenological model along the lines of AdS/QCD. The essential new ingredient is the brane-antibrane effective action including the open string tachyon proposed by Sen. Chiral symmetry breaking happens because of tachyon dynamics. We fit a large number of low-spin meson masses at the 10%-15% level. The only free parameters involved in the fits correspond to the overall QCD-scale and the quark masses. Several aspects of previous models are qualitatively improved.
1 :  CCTP - Crete Center for Theoretical Physics
2 :  APC - UMR 7164 - AstroParticule et Cosmologie
3 :  Physics Departement, University of Barcelona
Physique/Physique des Hautes Energies - Phénoménologie

Physique/Physique des Hautes Energies - Théorie
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