Wilsonian matching of effective field theory with underlying QCD
Sep, 20004 pages
Published in:
- Phys.Rev.D 64 (2001) 014023
e-Print:
- hep-ph/0009163 [hep-ph]
Report number:
- DPNU-00-29
Citations per year
Abstract:
We propose a novel way of matching effective field theory with the underlying QCD in the sense of a Wilsonian renormalization group equation (RGE). We derive Wilsonian matching conditions between current correlators obtained by the operator product expansion in QCD and those by the hidden local symmetry (HLS) model. This determines without much ambiguity the bare parameters of the HLS at the cutoff scale in terms of the QCD parameters. Physical quantities for the pi and rho system are calculated by the Wilsonian RGE's from the bare parameters in remarkable agreement with the experiment.- quantum chromodynamics
- renormalization group
- effective Lagrangian
- operator product expansion
- current: correlation function
- hidden symmetry: local
- coupling constant: (rho(770) 2pi)
- numerical calculations: interpretation of experiments
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