Nonperturbative renormalization constants using Ward identities
Apr, 1999
8 pages
Published in:
- Phys.Lett.B 461 (1999) 79-88
e-Print:
- hep-lat/9904011 [hep-lat]
Report number:
- LAUR-99-1717,
- UW-PT-98-15,
- UTCCP-P-56,
- DUKE-TH-99-185
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Abstract: (arXiv)
We extend the application of axial Ward identities to calculate and , coefficients that give the mass dependence of the renormalization constants of the corresponding bilinear operators in the quenched theory. The extension relies on using operators with non-degenerate quark masses. It allows a complete determination of the O(a) improvement coefficients for bilinears in the quenched approximation using Ward Identities alone. Only the scale dependent normalization constants (or ) and are undetermined. We present results of a pilot numerical study using hadronic correlators.Note:
- 8 pages. Modified "axis" source for figures also included
- gauge field theory: SU(3)
- fermion: lattice field theory
- renormalization: nonperturbative
- mass dependence
- Ward identity: axial
- operator: Dirac
- approximation: quenching
- hadron: correlation function
- numerical calculations: Monte Carlo
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