English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

We study the improvement of staggered fermions using hypercubically smeared(HYP) links. We calculate the strange quark mass and the kaon B-parameter,$B_K$, in quenched QCD on a $16^3 \times 64$ lattice at $\beta=6.0$. We find$m_s(\bar{\rm MS},2 {\rm GeV})=101.2\pm1.3\pm4 $MeV and $B_K(\bar{\rm MS},2{\rm GeV}) = 0.578 \pm 0.018\pm 0.042$, where the first error is fromstatistics and fitting, and the second from using one-loop matching factors.The scale ($1/a=1.95$GeV) is set by $M_\rho$, and $m_s$ is determined using thekaon mass. Comparing to quenched results obtained using unimproved staggeredfermions and other discretizations, we argue that the size of discretizationerrors in $B_K$ is substantially reduced by improvement.Comment: 9 pages, 12 figure, referee's comments are incorporate

physical review. d. particles, fields, gravitation, and cosmology/physical review. d, particles, fields, gravitation, and cosmology

Testing improved staggered fermions with<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>m</mml:mi><mml:mi>s</mml:mi></mml:msub></mml:math>and<mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML" display="inline"><mml:msub><mml:mi>B</mml:mi><mml:mi>K</mml:mi></mml:msub></mml:math>

Testing improved staggered fermions withmsandBK