Renormalization constants of vector (2,) and axial-vector (ZA) currents are determined non-perturbatively in quenched QCD for an RG-improved gauge action and a tadpole-improved clover quark action using the Schr6dinger functional method. Meson decay constants f, and fT show much better scaling when
✦ LIBER ✦
Non-perturbative tests of HQET in small-volume quenched QCD
✍ Scribed by Jochen Heitger; Andreas Jüttner; Rainer Sommer; Jan Wennekers
- Book ID
- 108227727
- Publisher
- Elsevier Science
- Year
- 2005
- Tongue
- English
- Weight
- 224 KB
- Volume
- 140
- Category
- Article
- ISSN
- 0920-5632
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The non-perturbative csw determined by the Schrtidinger functional (SF) method with the RG-improved gauge action in dynamical Nf = 3 QCD shows a finite volume effect when the numerical simulations are carried out at a constant lattice size L/a. We remove the unwanted finite volume effect by keeping