Unquenching effects on the coefficients of the Lüscher-Weisz action
| Autor: | R. R. Horgan, Quentin Mason, Howard D. Trottier, G. von Hippel, Zh. Hao |
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| Rok vydání: | 2007 |
| Předmět: |
Quark
Physics Nuclear and High Energy Physics Scaling law Particle physics 010308 nuclear & particles physics High Energy Physics::Lattice 01 natural sciences Action (physics) symbols.namesake High Energy Physics - Lattice 0103 physical sciences symbols Feynman diagram Perturbation theory (quantum mechanics) Quantum field theory 010306 general physics Scaling |
| Zdroj: | Physical Review D. 76 |
| ISSN: | 1550-2368 1550-7998 |
| DOI: | 10.1103/physrevd.76.034507 |
| Popis: | The effects of unquenching on the perturbative improvement coefficients in the Symanzik action are computed within the framework of L\"uscher-Weisz on-shell improvement. We find that the effects of quark loops are surprisingly large, and their omission may well explain the scaling violations observed in some unquenched studies. Comment: 7 pages, 5 figures, uses revtex4; version to appear in Phys.Rev.D |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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