Pseudoscalar meson physics with four dynamical quarks

A. Bazavov,a C. Bernard,b C. Bouchard,c C. DeTar,d D. Du,e A.X. El-Khadra,e J. Foley,d E.D. Freeland, f E. Gamiz,g Steven Gottlieb,h U.M. Heller,i J.E. Hetrick, j J. Kim,k A.S. Kronfeld,l J. Laiho,m L. Levkova,d M. Lightman,b P.B. Mackenzie,l E.T. Neil,l M. Oktay,d J.N. Simone,l R.L. Sugar,n D. Toussaint,∗k R.S. Van de Water,a,l and R. Zhouh [Fermilab Lattice and MILC Collaborations] a Department of Physics, Brookhaven National Laboratory†, Upton, NY 11973, USA b Department of Physics, Washington University, St. Louis, MO 63130, USA c Department of Physics, The Ohio State University, Columbus, OH 43210, USA d Physics Department, University of Utah, Salt Lake City, UT 84112, USA e Physics Department, University of Illinois, Urbana, IL 61801, USA f Department of Physics, Benedictine University, Lisle, IL 60532, USA g CAFPE and Departamento de Fisica Te orica y del Cosmos, Universidad de Granada, Granda, Spain h Department of Physics, Indiana University, Bloomington, IN 47405, USA i American Physical Society, One Research Road, Ridge, NY 11961, USA j Physics Department, University of the Pacific, Stockton, CA 95211, USA k Physics Department, University of Arizona, Tucson, AZ 85721, USA l Fermi National Accelerator Laboratory‡, Batavia, IL 60510, USA m SUPA, School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK n Department of Physics, University of California, Santa Barbara, CA 93106, USA E-mail: [email protected],