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Light hadron spectroscopy withO(a)improved dynamical fermions / Christopher Michael; R.D. Kenway; A.C. Irving; K.C. Bowler; S.P. Booth; H. Wittig; M. Foster; J.C. Sexton; M. Talevi; J. Peisa; S.M. Pickles; J. Garden; Z. Sroczynski; Chris Allton

Physical Review D, Volume: 60, Issue: 3

Swansea University Author: Chris, Allton

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Abstract

We present the first results for the static quark potential and the light hadron spectrum using dynamical fermions at $\beta=5.2$ 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 pseudoscala...

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Published in: Physical Review D
ISSN: 0556-2821 1089-4918
Published: 1999
Online Access: Check full text

URI: https://cronfa.swan.ac.uk/Record/cronfa28461
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Abstract: We present the first results for the static quark potential and the light hadron spectrum using dynamical fermions at $\beta=5.2$ 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, m_PS/m_V$, varies from 0.86 to 0.67. Finite-size effects are studied by using three different volumes, 8^3\cdot 24, 12^3\cdot 24 and 16^3\cdot 24. Comparing our results to previous ones obtained using the quenched approximation, we find evidence for sea quark effects in quantities like the static quark potential and the vector-pseudoscalar hyperfine splitting.
College: College of Science
Issue: 3