TY  - JOUR
AU  - Eicker, N.
AU  - Lacock, P.
AU  - Schilling, K.
AU  - Spitz, A.
AU  - Glässner, U.
AU  - Güsken, S.
AU  - Hoeber, H.
AU  - Lippert, Th.
AU  - Struckmann, Th.
AU  - Ueberholz, P.
AU  - Viehoff, J.
AU  - Ritzenhöfer, G.
TI  - Light and strange hadron spectroscopy with dynamical Wilson fermions
JO  - Physical review / D
VL  - 59
IS  - 1
SN  - 0556-2821
CY  - Melville, NY
PB  - Inst.812068
M1  - FZJ-2019-01090
SP  - 014509
PY  - 1998
AB  - We present the final analysis of the light and strange hadron spectra from a full QCD lattice simulation with two degenerate dynamical sea quark flavors at β=5.6 on a 163×32 lattice. Four sets of sea quark masses corresponding to the range 0.69<~mπ/mρ<~0.83 are investigated. For reference we also ran a quenched simulation at βeff=6.0, which is the point of equal lattice spacing, a−1ρ. In the light sector, we find the chiral extrapolation to physical u and d masses to present a major source of uncertainty, comparable to the expected size of unquenching effects. From linear and quadratic fits we can estimate the errors in the hadron masses made from light quarks to be on a 15% level prior to the continuum extrapolation. For the hadrons with strange valence quark content, the NF=2 approximation to QCD appears not to cure the well-known failure of quenched QCD to reproduce the physical K−K* splitting.
LB  - PUB:(DE-HGF)16
DO  - DOI:10.1103/PhysRevD.59.014509
UR  - https://juser.fz-juelich.de/record/860315
ER  -