Light hadron spectroscopy with O(a) improved dynamical fermions



Allton, CR, Booth, SP, Bowler, KC, Foster, M, Garden, J, Irving, AC, Kenway, RD, Michael, C, Peisa, J, Pickles, SM
et al (show 4 more authors) (1999) Light hadron spectroscopy with O(a) improved dynamical fermions. Physical Review D, 60.

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Abstract

We present the first results for the static quark potential and the light hadron spectrum using dynamical fermions at b55.2 using an O(a) improved Wilson fermion action together with the standard Wilson plaquette action for the gauge part. Sea quark masses were chosen such that the pseudoscalar-vector mass ratio, mPS /mV , varies from 0.86 to 0.67. Finite-size effects are studied by using three different volumes 83324, 123324, and 163324. Comparing our results to previous ones obtained using the quenched approximation, we find evidence for sea quark effects in quantities such as the static quark potential and vector-pseudoscalar hyperfine splitting. (@S0556-2821(99)00613-X)

Item Type: Article
Additional Information: LTH 430. Additional citation information: PHYSICAL REVIEW D, VOLUME 60, 034507; 0556-2821/99/60(3)/034507(15). 15 pages. Published 7 July 1999. Issue: August 1999.
Uncontrolled Keywords: MONTE-CARLO ALGORITHM, LATTICE GAUGE-THEORY, WILSON FERMIONS, DECAY CONSTANTS, STRING BREAKING, MATTER FIELDS, QUARK MASSES, 2 FLAVORS, FULL QCD, CP-PACS
Subjects: ?? QC ??
Divisions: Faculty of Science and Engineering > School of Physical Sciences > Mathematical Sciences
Depositing User: Symplectic Admin
Date Deposited: 03 Nov 2008 10:01
Last Modified: 26 Apr 2022 10:42
DOI: 10.1103/PhysRevD.60.034507
Publisher's Statement : ©1999 The American Physical Society
Related URLs:
URI: https://livrepository.liverpool.ac.uk/id/eprint/637