In this paper we consider a new definition of improved fermion operators which is very convenient for numerical QCD simulations with the nearest-neighbour improved action, and we present the one-loop values of the corresponding renormalization constants. This redefinition includes terms that are formally of order a2 or higher and do not affect the conclusions about order a improvement.



Titolo: NEW IMPROVED OPERATORS - A CONVENIENT REDEFINITION
Autori: 
GABRIELLI, Emidio
mostra contributor esterni 
Data di pubblicazione: 1993
Rivista: 
NUCLEAR PHYSICS. B  
Abstract: In this paper we consider a new definition of improved fermion operators which is very convenient for numerical QCD simulations with the nearest-neighbour improved action, and we present the one-loop values of the corresponding renormalization constants. This redefinition includes terms that are formally of order a2 or higher and do not affect the conclusions about order a improvement.
Handle: http://hdl.handle.net/11368/2634210
Digital Object Identifier (DOI): 10.1016/0550-3213(93)90585-D
Appare nelle tipologie:1.1 Articolo in Rivista

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