[1] Pacific Northwest Natl Lab, Richland, WA 99354 USA
[2] Univ South Carolina, Dept Phys & Astron, Columbia, SC 29208 USA
[3] Oak Ridge Natl Lab, Oak Ridge, TN 37830 USA
[4] Kurchatov Inst, Inst Theoret & Expt Phys, Natl Res Ctr, Moscow 117218, Russia
[5] Univ South Dakota, Dept Phys, Vermillion, SD 57069 USA
[6] Univ N Carolina, Dept Phys & Astron, Chapel Hill, NC 27514 USA
[7] Triangle Univ Nucl Lab, Durham, NC 27708 USA
[8] North Carolina State Univ, Dept Phys, Raleigh, NC 27695 USA
[9] Duke Univ, Dept Phys, Durham, NC 27708 USA
[10] Univ Washington, Ctr Expt Nucl Phys & Astrophys, Seattle, WA 98195 USA
[11] Univ Washington, Dept Phys, Seattle, WA 98195 USA
[12] Lawrence Berkeley Natl Lab, Nucl Sci Div, Berkeley, CA 94720 USA
[13] South Dakota Mines, Rapid City, SD 57701 USA
[14] Los Alamos Natl Lab, Los Alamos, NM 87545 USA
[15] Ctr Invest Energet Medioambientales & Tecnol, CIEMAT, Madrid 28040, Spain
[16] Univ Tennessee, Dept Phys & Astron, Knoxville, TN 37916 USA
[17] Osaka Univ, Res Ctr Nucl Phys, Osaka, Ibaraki 5670047, Japan
[18] Williams Coll, Phys Dept, Williamstown, MA 01267 USA
[19] Tennessee Technol Univ, Cookeville, TN 38505 USA
[20] Queens Univ, Dept Phys Engn Phys & Astron, Kingston, ON K7L 3N6, Canada
[21] Max Planck Inst Phys & Astrophys, D-80805 Munich, Germany
[22] Tech Univ, Phys Dept, D-85748 Munich, Germany
[23] Tech Univ, Excellence Cluster Universe, D-85748 Munich, Germany
[24] Indiana Univ, IU Ctr Explorat Energy & Matter, Bloomington, IN 47405 USA
[25] Indiana Univ, Dept Phys, Bloomington, IN 47405 USA
[26] Joint Inst Nucl Res, Dubna 141980, Russia
[27] Roma Tre Univ, Rome, Italy
[28] INFN Roma Tre, Rome, Italy
[29] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[30] Univ Calif San Diego, La Jolla, CA 92093 USA
[31] Duke Univ, Durham, NC 27708 USA
[32] Argonne Natl Lab, Lemont, IL 60439 USA
[33] Univ Hamburg, Inst Expt Phys, Hamburg, Germany
[34] DEVCOM Army Res Lab Armed Forces, US Army, Adelphi, MD 20783 USA
[35] CALTECH, Jet Prop Lab, Pasadena, CA 91109 USA