Zobrazeno 1 - 10
of 161
pro vyhledávání: '"Talevi, M."'
Autor:
UKQCD Collaboration, Allton, C. R., Booth, S. P., Bowler, K. C., Garden, J., Hart, A., Hepburn, D., Irving, A. C., Joo, B., Kenway, R. D., Maynard, C. M., McNeile, C., Michael, C., Pickles, S. M., Sexton, J. C., Sharkey, K. J., Sroczynski, Z., Talevi, M., Teper, M., Wittig, H.
Publikováno v:
Phys.Rev.D65:054502,2002
We present results for the static inter-quark potential, lightest glueballs, light hadron spectrum and topological susceptibility using a non-perturbatively improved action on a $16^3\times 32$ lattice at a set of values of the bare gauge coupling an
Externí odkaz:
http://arxiv.org/abs/hep-lat/0107021
Publikováno v:
Nucl.Phys.B611:311-337,2001
We propose a method to improve lattice operators composed of Wilson fermions which allows the removal of all corrections of $O(a)$, including those proportional to the quark mass. It requires off-shell improvement of quark fields and composite operat
Externí odkaz:
http://arxiv.org/abs/hep-lat/0106003
Publikováno v:
Eur.Phys.J.C10:121-142,1999
A general non-perturbative analysis of the renormalization properties of $\Delta I=3/2$ four-fermion operators in the framework of lattice regularization with Wilson fermions is presented. We discuss the non-perturbative determination of the operator
Externí odkaz:
http://arxiv.org/abs/hep-lat/9902030
Autor:
Talevi, M.
Publikováno v:
Nucl.Phys.Proc.Suppl. 73 (1999) 219-221
We present results for the hadron spectrum and static quark potential from a simulation with two flavours of $O(a)$ improved dynamical Wilson fermions at $\beta=5.2$. We address the issues of sea quark dependence of observables and finite-size effect
Externí odkaz:
http://arxiv.org/abs/hep-lat/9809182
Autor:
Allton, C. R., Conti, L., Donini, A., Gimenez, V., Giusti, L., Martinelli, G., Talevi, M., Vladikas, A.
Publikováno v:
Nucl.Phys.Proc.Suppl. 73 (1999) 315-317
We present the first lattice measurement, using Non Perturbative Renormalization Method, of the B-parameters of the dimension-six four-fermion operators relevant for the supersymmetric corrections to the $\Delta S=2$ transitions.
Comment: 3 page
Comment: 3 page
Externí odkaz:
http://arxiv.org/abs/hep-lat/9809162
Publikováno v:
Nucl.Phys.Proc.Suppl. 73 (1999) 210-212
We determine the quark masses and the chiral condensate in the MSbar scheme at NNLO from Lattice QCD in the quenched approximation at beta=6.0, beta=6.2 and beta=6.4 using both the Wilson and the tree-level improved SW-Clover fermion action. We extra
Externí odkaz:
http://arxiv.org/abs/hep-lat/9809037
Autor:
UKQCD Collaboration, Allton, C. R., Booth, S. P., Bowler, K. C., Foster, M., Garden, J., Irving, A. C., Kenway, R. D., Michael, C., Peisa, J., Pickles, S. M., Sexton, J. C., Sroczynski, Z., Talevi, M., Wittig, H.
Publikováno v:
Phys.Rev.D60:034507,1999
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
Externí odkaz:
http://arxiv.org/abs/hep-lat/9808016
Autor:
Ciuchini, M., Conti, L., Donini, A., Franco, E., Gimenez, V., Giusti, L., Lubicz, V., Martinelli, G., Masiero, A., Scimemi, I., Silvestrini, L., Talevi, M., Vladikas, A.
Publikováno v:
JHEP 9810 (1998) 008
We perform a Next-to-Leading order analysis of Delta S=2 processes beyond the Standard Model. Combining the recently computed NLO anomalous dimensions and the B parameters of the most general Delta S=2 effective Hamiltonian, we give an analytic formu
Externí odkaz:
http://arxiv.org/abs/hep-ph/9808328
Publikováno v:
Nucl.Phys. B538 (1999) 249-277
We determine the chiral condensate from simulations of quenched lattice QCD with Wilson fermions. Our measurements have been obtained with high statistics at three values of the gauge coupling, corresponding to UV cutoffs in the range 2 - 4 GeV. Seve
Externí odkaz:
http://arxiv.org/abs/hep-lat/9807014
Autor:
Allton, C. R., Conti, L., Donini, A., Gimenez, V., Giusti, L., Martinelli, G., Talevi, M., Vladikas, A.
Publikováno v:
Phys.Lett. B453 (1999) 30-39
We present a calculation of the matrix elements of the most general set of DeltaS=2 dimension-six four-fermion operators. The values of the matrix elements are given in terms of the corresponding B-parameters. Our results can be used in many phenomen
Externí odkaz:
http://arxiv.org/abs/hep-lat/9806016