Zobrazeno 1 - 10
of 78
pro vyhledávání: '"Collaboration, UKQCD"'
Autor:
Allton, C., Antonio, D. J., Boyle, P. A., Dawson, C., Jüttner, A., Kenway, R. D., Li, S., Lin, M., Maynard, C. M., Noaki, J., Pendleton, B. J., Tweedie, R. J., Yamaguchi, A., Zanotti, J. M., Collaboration, RBC, Collaboration, UKQCD
Publikováno v:
PoS LAT2006:096,2006
We present results for the light meson masses, the bare strange quark mass and preliminary non-perturbative renormalisation of B_K in 2+1 flavour domain wall QCD. The ensembles used were generated with the Iwasaki gauge action and have a volume of 16
Externí odkaz:
http://arxiv.org/abs/hep-lat/0610119
Autor:
Antonio, D. J., Bowler, K. C., Boyle, P. A., Clark, M. A., Joó, B., Kennedy, A. D., Kenway, R. D., Maynard, C. M., Tweedie, R. J., Yamaguchi, A., Collaboration, RBC, Collaboration, UKQCD
Publikováno v:
PoS LAT2005 (2005) 080
We present results for light meson masses and psedoscalar meson decay constants in 2+1 flavour domain wall QCD with the DBW2 and Iwasaki gauge actions, using lattices with linear sizes in the range 1.6 to 2.2fm and $u$ and $d$ quark masses as low as
Externí odkaz:
http://arxiv.org/abs/hep-lat/0512009
Autor:
Hepburn, D. J., Collaboration, UKQCD
I present preliminary results on the light quark masses from a partially quenched analysis of UKQCD's dynamical datasets.
Comment: Lattice2002(spectrum), 3 pages, 3 figures, Edinburgh preprint 2002/13
Comment: Lattice2002(spectrum), 3 pages, 3 figures, Edinburgh preprint 2002/13
Externí odkaz:
http://arxiv.org/abs/hep-lat/0209036
Autor:
Irving, A. C., Collaboration, UKQCD
We present preliminary results from UKQCD simulations at light quark masses using two flavours of non-pertubatively improved Wilson fermions. We report on the performance of the standard HMC algorithm at these quark masses where m_pi/m_rho < 0.5 in c
Externí odkaz:
http://arxiv.org/abs/hep-lat/0208065
Autor:
LHPC Collaboration, Richards, D. G., Collaboration, QCDSF, Gockeler, M., Horsley, R., Pleiter, D., Rakow, P. E. L., Schierholz, G., Collaboration, UKQCD, Maynard, C. M.
We present a calculation of the lowest-lying baryon masses in the quenched approximation to QCD. The calculations are performed using a non-perturbatively improved clover fermion action, and a splitting is found between the masses of the nucleon and
Externí odkaz:
http://arxiv.org/abs/nucl-th/0206049
Autor:
LHPC Collaboration, Richards, D. G., Collaboration, QCDSF, Gockeler, M., Horsley, R., Pleiter, D., Rakow, P. E. L., Schierholz, G., Collaboration, UKQCD, Maynard, C. M.
Publikováno v:
Nucl.Phys.Proc.Suppl.109A:89-95,2002
We discuss the extraction of negative-parity baryon masses from lattice QCD calculations. The mass of the lowest-lying negative-parity $J = 1/2^{-}$ state is computed in quenched lattice QCD using an ${\cal O}(a)$-improved clover fermion action, and
Externí odkaz:
http://arxiv.org/abs/hep-lat/0112031
Autor:
Joo, B., Collaboration, UKQCD
Publikováno v:
Nucl.Phys.Proc.Suppl. 106 (2002) 1073-1075
We discuss an instability in the leapfrog integration algorithm, widely used in current Hybrid Monte Carlo (HMC) simulations of lattice QCD. We demonstrate the instability in the simple harmonic oscillator (SHO) system where it is manifest. We demons
Externí odkaz:
http://arxiv.org/abs/hep-lat/0110047
Publikováno v:
Nucl.Phys.Proc.Suppl. 106 (2002) 278-280
I present results of recent work for the UKQCD Collaboration on the light hadron spectrum using a non-perturbatively O(a)-improved Wilson action with two degenerate flavours of dynamical quarks on a 16^3x32 lattice. Values of the bare gauge coupling
Externí odkaz:
http://arxiv.org/abs/hep-lat/0110029
Publikováno v:
Nucl.Phys.Proc.Suppl.106:293-295,2002
We evaluate the matrix element of $\bar{q} q$ in hadron states on a lattice. We find substantial mixing of the connected and disconnected contributions so that the lattice result that the disconnected contribution to the nucleon is large does not imp
Externí odkaz:
http://arxiv.org/abs/hep-lat/0109028
Publikováno v:
Nucl.Phys.Proc.Suppl. 94 (2001) 273-276
We present results on light hadron masses from simulations of full QCD and report on experiences in running such simulations on a Hitachi SR8000-F1 supercomputer.
Comment: Lattice 2000 (Spectrum), 4 pages, 6 eps figures
Comment: Lattice 2000 (Spectrum), 4 pages, 6 eps figures
Externí odkaz:
http://arxiv.org/abs/hep-lat/0011045