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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:

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DOI (Published version): 10.1103/PhysRevD.60.034507

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 0556-2821 1089-4918 1999 https://cronfa.swan.ac.uk/Record/cronfa28461 No Tags, Be the first to tag this record!
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 of Science 3