arXiv:hep-lat/0409049·v1·High Energy Physics — Lattice
B_K from improved staggered quarks
E. Gamiz🇬🇧 · S. Collins🇬🇧 · C. T. H. Davies🇬🇧 · J. Shigemitsu🇺🇸 · M. Wingate (HPQCD and UKQCD collaborations)🇺🇸
Abstract
We compare calculations of B_K with improved staggered quarks (HYP, Asqtad) and demonstrate the improved scaling behaviour that this gives rise to over previous calculations with unimproved staggered quarks. This enables us to perform the calculation of B_K on the MILC dynamical configurations (n_f=2+1), for which we give preliminary results.
Comments: 3 pages, 3 figures. Talk presented at Lattice 2004(weak), Fermilab, June 21-26, 2004