An improved model of vector mesons in holographic QCD
Aug, 2011
Citations per year
Abstract: (arXiv)
We analyze the sector of dimension-three vector meson operators in the "hard wall" model of holographic QCD, including the vector and axial currents, dual to gauge fields in the bulk, and the tensor operator , dual to a two-form field satisfying a complex self-duality condition. The model includes the effect of chiral symmetry breaking on vector mesons, that involves a coupling between the dual gauge field and the two-form field. We compute the leading logarithmic terms in the operator product expansion of two-point functions and the leading non-perturbative contribution to the tensor-vector correlator. The result is consistent with the operator product expansion of QCD. We also study the spectrum of vector mesons numerically.Note:
- 19 pages
- 11.15.Pg
- 12.10.Dm
- quantum chromodynamics: holography
- gauge field theory: duality
- symmetry breaking: chiral
- operator: tensor
- operator product expansion
- correlation function
- two-point function
- nonperturbative
References(23)
Figures(0)