Kaon semileptonic vector form factor and determination of | V us | using staggered fermions

(Fermilab Lattice and MILC Collaborations) Physics Department, Brookhaven National Laboratory, Upton, NY, USA Department of Physics, Washington University, St. Louis, Missouri, USA Department of Physics, The Ohio State University, Columbus, Ohio, USA Physics Department, University of Utah, Salt Lake City, Utah, USA Physics Department, University of Illinois, Urbana, Illinois, USA Department of Physics, Benedictine University, Lisle, Illinois, USA CAFPE and Departamento de F́ısica Teórica y del Cosmos, Universidad de Granada, Granada, Spain Department of Physics, Indiana University, Bloomington, Indiana, USA American Physical Society, Ridge, New York, USA Department of Physics, University of Arizona, Tucson, Arizona, USA Fermi National Accelerator Laboratory, Batavia, Illinois, USA SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow, UK Department of Physics, University of California, Santa Barbara, California, USA (Dated: December 21, 2012)