Perturbative subtraction of lattice artifacts in the computation of renormalization constants
Genre
Conference ProceedingDate
2012-01-01Author
Constantinou, MCosta, M
Göckeler, M
Horsley, R
Panagopoulos, H
Perlt, H
Rakow, PEL
Schierholz, G
Schiller, A
Permanent link to this record
http://hdl.handle.net/20.500.12613/6015
Metadata
Show full item recordAbstract
The determination of renormalization factors is of crucial importance. They relate the observ- ables obtained on finite, discrete lattices to their measured counterparts in the continuum in a suitable renormalization scheme. Therefore, they have to be computed as precisely as possible. A widely used approach is the nonperturbative Rome-Southampton method. It requires, however, a careful treatment of lattice artifacts. They are always present because simulations are done at lattice spacings a and momenta p with ap not necessarily small. In this paper we try to suppress these artifacts by subtraction of one-loop contributions in lattice perturbation theory. We compare results obtained from a complete one-loop subtraction with those calculated for a subtraction of O(a2).Has part
Proceedings of ScienceADA compliance
For Americans with Disabilities Act (ADA) accommodation, including help with reading this content, please contact scholarshare@temple.eduae974a485f413a2113503eed53cd6c53
http://dx.doi.org/10.34944/dspace/5997
Scopus Count
Collections
Except where otherwise noted, this item's license is described as https://creativecommons.org/licenses/by-nc-sa/3.0/