Zobrazeno 1 - 10
of 70
pro vyhledávání: '"Glässner, U."'
Autor:
Eicker, N., Glässner, U., Güsken, S., Hoeber, H., Lacock, P., Lippert, Th., Schilling, K., Spitz, A., Struckmann, Th., Ueberholz, P., Viehoff, J.
Publikováno v:
Phys. Rev. D 59, 014509 (1998)
We present the final analysis of the light and strange hadron spectra from a full QCD lattice simulation with two degenerate dynamical sea quark flavours at $\beta = 5.6$ on a $16^3 \times 32$ lattice. Four sets of sea quark masses corresponding to t
Externí odkaz:
http://arxiv.org/abs/hep-lat/9806027
Autor:
SESAM, collaboration, TXL, Lippert, Th., Bali, G., Eicker, N., Giusti, L., Glaessner, U., Guesken, S., Hoeber, H., Martinelli, G., Rapuano, F., Ritzenhoefer, G., Schilling, K., Spitz, A., Viehoff, J.
Publikováno v:
Nucl.Phys.Proc.Suppl. 63 (1998) 946-948
We investigate the critical dynamics of the Hybrid Monte Carlo algorithm approaching the chiral limit of standard Wilson fermions. Our observations are based on time series of lengths O(5000) for a variety of observables. The lattice sizes are 16^3 x
Externí odkaz:
http://arxiv.org/abs/hep-lat/9712020
Autor:
SESAM, collaborations, TkL, Hoeber, H., Eicker, N., Glässner, U., Güsken, S., Lacock, P., Lippert, Th., Ritzenhöfer, G., Schilling, K., Spitz, A., Ueberholz, P., Viehoff, J., Giusti, L., Martinelli, G., Rapuano, F.
Publikováno v:
Nucl.Phys.Proc.Suppl. 63 (1998) 218-220
We present results for spectroscopy, quark masses and decay constants obtained from SESAM's and TkL's large statistics simulations of QCD with two dynamical Wilson fermions.
Comment: 3 pages; to appear in the proceedings of Lat.'97
Comment: 3 pages; to appear in the proceedings of Lat.'97
Externí odkaz:
http://arxiv.org/abs/hep-lat/9709137
Autor:
Eicker, N., Glässner, U., Güsken, S., Hoeber, H., Lacock, P., Lippert, Th., Ritzenhöfer, G., Schilling, K., Siegert, G., Spitz, A., Ueberholz, P., Viehoff, J.
Publikováno v:
Phys.Lett.B407:290-296,1997
We determine the masses of the light and the strange quarks in the $\bar{MS}$-scheme using our high-statistics lattice simulation of QCD with dynamical Wilson fermions. For the light quark mass we find $m^{light}_{\bar{MS}}(2 GeV) = 2.7(2) MeV$, whic
Externí odkaz:
http://arxiv.org/abs/hep-lat/9704019
Autor:
SESAM-Collaboration, Eicker, N., Glässner, U., Güsken, S., Hoeber, H., Lippert, Th., Ritzenhöfer, G., Schilling, K., Siegert, G., Spitz, A., Ueberholz, P., Viehoff, J.
We present recent results of SESAM's large scale lattice simulation of QCD with two dynamical flavours of Wilson fermions. The emphasis is on future prospects in the extraction of flavour-singlet matrix elements, i.e the pi-nucleon sigma term, with d
Externí odkaz:
http://arxiv.org/abs/hep-ph/9611464
Autor:
T-chi-L-Collaboration, Conti, L., Eicker, N., Giusti, L., Glaessner, U., Guesken, S., Hoeber, H., Lippert, Th., Martinelli, G., Rapuano, F., Ritzenhoefer, G., Schilling, K., Siegert, G., Spitz, A., Viehoff, J.
Publikováno v:
Nucl.Phys.Proc.Suppl. 53 (1997) 222-224
The investigation of light sea-quark effects in lattice QCD with dynamical Wilson fermions requires both larger physical volumes and finer lattice resolutions than achieved previously. As high-end supercomputers like the 512-node APE Tower provide th
Externí odkaz:
http://arxiv.org/abs/hep-lat/9609028
Autor:
SESAM-Collaboration, Glaessner, U., Guesken, S., Hoeber, H., Lippert, Th., Ritzenhoefer, G., Schilling, K., Siegert, G., Spitz, A.
Publikováno v:
Nucl.Phys.Proc.Suppl. 53 (1997) 219-221
We present results from an analysis of the light spectrum and the decay constants f_{\pi} and f_V^{-1} in Full QCD with n_f=2 Wilson fermions at a coupling of beta=5.6 on a 16^3x32 lattice.
Comment: 3 pages, LaTeX with 4 eps figures, Talk presen
Comment: 3 pages, LaTeX with 4 eps figures, Talk presen
Externí odkaz:
http://arxiv.org/abs/hep-lat/9608083
Autor:
Fischer, S., Frommer, A., Glaessner, U., Guesken, S., Hoeber, H., Lippert, Th., Ritzenhoefer, G., Schilling, K., Siegert, G., Spitz, A.
Publikováno v:
Nucl.Phys.Proc.Suppl. 53 (1997) 990-992
A parallelizable SSOR preconditioning scheme for Krylov subspace iterative solvers in lattice QCD applications involving Wilson fermions is presented. In actual Hybrid Monte Carlo and quark propagator calculations it helps to reduce the number of ite
Externí odkaz:
http://arxiv.org/abs/hep-lat/9608066
Autor:
SESAM-Collaboration, Eicker, N., Glässner, U., Hoeber, S. Güsken H., Lippert, Th., Ritzenhöfer, G., Schilling, K., Spitz, G. Siegert A., Ueberholz, P., Viehoff, J.
Publikováno v:
Phys.Lett. B389 (1996) 720-726
In a full QCD lattice study with $N_f = 2$ Wilson fermions, we seek to optimize the signals for the disconnected contributions to the matrix element of flavour-singlet operators between nucleon states, which are indicative for sea quark effects. We d
Externí odkaz:
http://arxiv.org/abs/hep-lat/9608040
The availability of efficient Krylov subspace solvers play a vital role for the solution of a variety of numerical problems in computational science. Here we consider lattice field theory. We present a new general numerical method to compute many Gre
Externí odkaz:
http://arxiv.org/abs/hep-lat/9605008