B_K from improved staggered quarks
E. Gamiz, S. Collins, C. T. H. Davies, J. Shigemitsu, M. Wingate, (HPQCD, UKQCD collaborations)
TL;DR
This paper compares B_K calculations using improved staggered quarks, demonstrating better scaling and enabling preliminary results on dynamical configurations, advancing lattice QCD computations of B_K.
Contribution
It introduces improved staggered quark actions (HYP, Asqtad) for B_K calculations and applies them to dynamical configurations, showing enhanced scaling behavior.
Findings
Improved staggered quarks show better scaling behavior.
Preliminary B_K results on dynamical configurations are presented.
Enhanced accuracy in lattice QCD calculations of B_K.
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.
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