Finite volume effects in B{sub K} with improved staggered fermions

Journal Article · Wed Jun 01 00:00:00 EDT 2011 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.83.117501· OSTI ID:21502703

Kim, Jangho; Kim, Hyung-Jin; Lee, Weonjong ^[1]; Jung, Chulwoo ^[2]; Sharpe, Stephen R ^[3]

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1. Lattice Gauge Theory Research Center, FPRD, and CTP, Department of Physics and Astronomy, Seoul National University, Seoul, 151-747 (Korea, Republic of)
2. Physics Department, Brookhaven National Laboratory, Upton, NY 11973 (United States)
3. Physics Department, University of Washington, Seattle, Washington 98195-1560 (United States)

We extend our recent unquenched (N{sub f}=2+1 flavor) calculation of B{sub 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.

• OSTI ID: 21502703
• Journal Information: Physical Review. D, Particles Fields, Vol. 83, Issue 11; Other Information: DOI: 10.1103/PhysRevD.83.117501; (c) 2011 American Institute of Physics; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
CHIRALITY
COMPARATIVE EVALUATIONS
COMPUTERIZED SIMULATION
FERMIONS
FLAVOR MODEL
PERTURBATION THEORY
COMPOSITE MODELS
EVALUATION
MATHEMATICAL MODELS
PARTICLE MODELS
PARTICLE PROPERTIES
QUARK MODEL
SIMULATION