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Universality of the N f = 2 Running Coupling in the Schödinger Functional Scheme
| Content Provider | Semantic Scholar |
|---|---|
| Author | Murano, Keiko Aoki, Sinya Taniguchi, Yusuke |
| Copyright Year | 2008 |
| Abstract | We investigate universality of the N f = 2 running coupling in the Schödinger functional scheme, by calculating the step scaling function in lattice QCD with the renormalization group (RG) improved gauge action at both weak( u = 0.9796) and strong( u = 3.3340) couplings, where u = ḡSF with ḡSF being the running coupling in this scheme. In our main calcul tions, we use the treelevel value forO(a) improvement coefficients of boundary gauge fields. In additi on we employ the 1-loop value for them in order to see how scaling behaviou rs are affected by them. In the continuum limit, the step scaling function obtained from th e RG improved gauge actions agrees with the previous result obtained from the plaquette action within errors at both couplings, though errors of our result are larger. Combined fits using all data w i h the RG improved action as well as the plaquette action reduce errors in the continuum limit by 2% at the weak coupling and 22% at the strong coupling. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://arxiv.org/pdf/0903.1154v1.pdf |
| Alternate Webpage(s) | http://pos.sissa.it/archive/conferences/066/228/LATTICE%202008_228.pdf |
| Language | English |
| Access Restriction | Open |
| Subject Keyword | Coefficient Coupling constant FITS Image scaling Large Lattice QCD RS 93522-004 bis(3,5-dinitrobenzoic acid ester) Residential gateway Test scaling Triune continuum paradigm Universality probability Wavelet |
| Content Type | Text |
| Resource Type | Article |
