Improvement of the staggered fermion operators
- Department of Physics, Columbia University, New York, New York 10027 (United States)
We present a complete and detailed discussion of the finite lattice spacing corrections to staggered fermion matrix elements. Expanding upon arguments of Sharpe, we explicitly implement the Symanzik improvement program demonstrating the absence of order a terms in the Symanzik improved action. We propose a general program to improve fermion operators to remove all O(a) corrections from their matrix elements, and demonstrate this program for the examples of matrix elements of fermion bilinears and B{sub K}. We find the former does have O(a) corrections while the latter does not. Also, we give an explicit form of lattice currents which are accurate to order a{sup 2} at the tree level. {copyright} {ital 1997} {ital The American Physical Society}
- OSTI ID:
- 471223
- Journal Information:
- Physical Review, D, Journal Name: Physical Review, D Journal Issue: 1 Vol. 55; ISSN PRVDAQ; ISSN 0556-2821
- Country of Publication:
- United States
- Language:
- English
Similar Records
On-shell-improved lattice QCD with staggered fermions
Effective field theories for QCD with rooted staggered fermions
One-loop matching factors for staggered bilinear operators with improved gauge actions
Journal Article
·
Wed Dec 31 23:00:00 EST 1997
· Physical Review, D
·
OSTI ID:566105
Effective field theories for QCD with rooted staggered fermions
Journal Article
·
Tue Apr 01 00:00:00 EDT 2008
· Physical Review. D, Particles Fields
·
OSTI ID:21249954
One-loop matching factors for staggered bilinear operators with improved gauge actions
Journal Article
·
Tue Jun 01 00:00:00 EDT 2010
· Physical Review. D, Particles Fields
·
OSTI ID:21407987