Comments on Mesonic Correlators in the Worldline Formalism
arXiv:1102.5318 · doi:10.1016/j.nuclphysb.2011.06.017
Abstract
We elaborate on how to incorporate mesonic correlators into the worldline formalism. We consider possible applications to QCD-like theories in various dimensions. We focus on large-N_c two dimensional QCD (the 't Hooft model) and relate it to a single harmonic oscillator. We also discuss the dependence of the Peskin S-parameter on the number of massless flavors and their representation and compare our expression to the corresponding expression obtained at weak coupling. Finally, we use the worldline formalism to discuss how the Veneziano limit of QCD is realized in holography in the limit of small N_f/N_c.
14 pages, LaTex. 6 eps figures. v2: minor changes, typos fixed. To appear in Nuclear Physics B
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Cited by in corpus (6)
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- The fifth dimension in the worldline formalism, holography, and the Wilson flow
- Large-N QCD and the Veneziano Amplitude
- Holographic Corrections to the Veneziano Amplitude
- QCD With A Chemical Potential, Topology, And The 't Hooft 1/N Expansion