Gürtler, M, Horsley, R, Rakow, PEL 
ORCID: 0000-0003-4486-2158, Roberts, CJ, Schierholz, G and Streuer, T
(2005)
Non-perturbative renormalisation for overlap fermions.
[Poster]
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Abstract
Using non-perturbative techniques we have found the renormalisation factor, Z, in the RI-MOM scheme for quark bilinear operators in quenched QCD. We worked with overlap fermions using the Luescher-Weisz gauge action. Our calculation was performed at beta=8.45 at a lattice spacing of 1/a=2.1 GeV using a value of rho=1.4. Our results show good agreement between the vector and the axial vector in the zero mass limit. This shows that overlap fermions have good chiral properties. To attempt to improve the discretisation errors in our results we subtracted the O(a^2) terms in one-loop lattice perturbation theory from the Monte Carlo Green functions. In particular we paid attention to the operators for the observable <x>. We found a value for the renormalisation constants Z^msbar_(v_2b) and Z^msbar_(v_2a) just less than 1.9 at mu=1/a=2.1 GeV.
| Item Type: | Poster |
|---|---|
| Additional Information: | 6 pages, 3 figures, uses PoS style, poster presented at Lattice 2005 (Chiral Fermions), to be published in Proceedings of Science |
| Uncontrolled Keywords: | hep-lat, hep-lat |
| Subjects: | ?? QC ?? |
| Divisions: | Faculty of Science and Engineering > School of Physical Sciences > Mathematical Sciences |
| Depositing User: | Symplectic Admin |
| Date Deposited: | 18 Aug 2008 11:04 |
| Last Modified: | 17 Dec 2022 00:50 |
| Publisher's Statement : | Copyright owned by the author(s) under the terms of the Creative Commons Attribution-NonCommercial-ShareAlike Licence. The author(s) and right holder(s) of such contributions grant(s) to all users a free, irrevocable, worldwide, right of access to, and a license to copy, use, distribute, transmit and display the work publicly and to make and distribute derivative works, in any digital medium for any responsible purpose, subject to proper attribution of authorship (community standards, will continue to provide the mechanism for enforcement of proper attribution and responsible use of the published work, as they do now), as well as the right to make small numbers of printed copies for their personal use. |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/403 |
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