The D s and D + Leptonic Decay Constants from Lattice QCD Fermilab Lattice and MILC Collaborations

aDepartment of Physics, University of Arizona, Tucson, Arizona, USA bDepartment of Physics, Washington University, St. Louis, Missouri, USA cPhysics Department, University of Utah, Salt Lake City, Utah, USA dPhysics Department, University of Illinois, Urbana, Illinois, USA eFermi National Accelerator Laboratory, Batavia, Illinois, USA f Department of Physics, Indiana University, Bloomington, Indiana, USA gNational Center for Supercomputing Applications, University of Illinois, Urbana, Illinois, USA hAmerican Physical Society, One Research Road, Box 9000, Ridge, New York, USA iPhysics Department, University of the Pacific, Stockton, California, USA jSchool of Computer Sci., Telecom. and Info. Systems, DePaul University, Chicago, Illinois, USA kDepartment of Physics, University of California, Santa Barbara, California, USA lPhysics Department, Brookhaven National Laboratory, Upton New York, USA