Collaboration, BGR, Gattringer, Christof, Gockeler, Meinulf, Hasenfratz, Peter, Hauswirth, Simon, Holland, Kieran, Jorg, Thomas, Juge, Keisuke J, Lang, CB, Niedermayer, Ferenc et al (show 3 more authors)
(2003)
Quenched spectroscopy with fixed-point and chirally improved fermions.
Nucl.Phys.B, 677 (1-2).
pp. 3-51.
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Abstract
We present results from quenched spectroscopy calculations with the parametrized fixed-point and the chirally improved Dirac operators. Both these operators are approximate solutions of the Ginsparg-Wilson equation and have good chiral properties. This allows us to work at small quark masses and we explore pseudoscalar-mass to vector-mass ratios down to 0.28. We discuss meson and baryon masses, their scaling properties, finite volume effects and compare our results with recent large scale simulations. We find that the size of quenching artifacts of the masses is strongly correlated with their experimentally observed widths and that the gauge and hadronic scales are consistent.
| Item Type: | Article |
|---|---|
| Additional Information: | 66 pages, 33 figures. Published version: minor modifications in the text, references added |
| 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: | 04 Nov 2008 13:02 |
| Last Modified: | 17 Dec 2022 01:28 |
| DOI: | 10.1016/j.nuclphysb.2003.10.044 |
| Related URLs: | |
| URI: | https://livrepository.liverpool.ac.uk/id/eprint/504 |
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