Finite volume effects inBKwith improved staggered fermions

2011/01/31 by Jangho Kim, Chulwoo Jung, Hyungjin Kim +3 · 2 citations
Physics and Astronomy · #High-Energy Particle Collisions Research #Particle physics theoretical and experimental studies #Quantum Chromodynamics and Particle Interactions #hep-lat #hep-ph

paper · pdf · doi:10.1103/physrevd.83.117501

published as Phys.Rev.D83:117501,2011 · 4 pages, 6 figures, references updated

arxiv created 2011/03/28 · openalex publication_date 2011/06/01 · arxiv updated 2011/06/13 · openalex created_date 2016/06/24 · openalex updated_date 2026/07/28

Abstract

We extend our recent unquenched (N_f=2+1 flavor) calculation of B_K using improved staggered fermions by including in the fits the finite volume shift predicted by one-loop staggered chiral perturbation theory. The net result is to lower the result in the continuum limit by 0.6%. This shift is slightly smaller than our previous estimate of finite volume effects based on a direct comparison between different volumes.

Cited by

• Taste non-Goldstone, flavor-charged pseudo-Goldstone boson masses in staggered chiral perturbation theory
• KaonBParameter from Improved Staggered Fermions inNf=2+1QCD

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