期刊
PHYSICAL REVIEW D
卷 84, 期 9, 页码 -出版社
AMER PHYSICAL SOC
DOI: 10.1103/PhysRevD.84.095020
关键词
-
资金
- U.S. Department of Energy [DE-FG02-96ER40956]
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 (Psi) over bar sigma(mu nu) Psi, 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 nonperturbative 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.
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