TY  - JOUR
AU  - Bali, G. S.
AU  - Düssel, T.
AU  - Lippert, T.
AU  - Neff, H.
AU  - Prkacin, Z.
AU  - Schilling, K.
TI  - String breaking with dynamical Wilson fermions
JO  - Nuclear physics  / B / Proceedings supplements
VL  - 140
SN  - 0920-5632
CY  - Amsterdam
PB  - Elsevier
M1  - PreJuSER-45378
SP  - 609 - 611
PY  - 2005
N1  - Record converted from VDB: 12.11.2012
AB  - We present results of our ongoing determination of string breaking in full QCD with N-f = 2 Wilson fermions. Our investigation of the fission of the static quark-antiquark string into a static-light meson-antimeson system is based on dynamical configurations of size 24 3 x 40 produced by the TchiL collaboration. Combining various optimization methods we determine the matrix elements of the two-by-two system with so far unprecedented accuracy. The all-to-all light quark propagators occurring in the transition element are computed from eigenmodes of the Hermitian Wilson-Dirac matrix complemented by stochastic estimates in the orthogonal subspace. We observe a clear signature for level-splitting between ground state and excited potential. Thus, for the first time, string breaking induced by sea quarks is observed in a simulation of 4-dimensional lattice-QCD.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000227264000144
DO  - DOI:10.1016/j.nuclphysbps.2004.11.305
UR  - https://juser.fz-juelich.de/record/45378
ER  -