[1] University of Minnesota,School of Physics and Astronomy,116 Church St.S.E.,Minneapolis,MN 55455,USA
[2] University of Maryland,Department of Physics,College Park,MD 20742-4111,USA
[3] Albert Einstein Center for Fundamental Physics,Universitat Bern,CH-3012 Bern,Switzerland
[4] Lab.Nazionali di Frascati dell’INFN,CP 13,via E.Fermi,40,I-00044 Frascati(Roma),Italy
[5] Departement de physique,Universite de Montreal,C.P.6128,succ.centre-ville,Montreal(Quebec) H3C 3J7,Canada
[6] Pacific Northwest National Laboratory,902 Battelle Boulevard,Richland,WA 99352,USA
[7] Department of Physics and Astronomy,University of Oklahoma,Norman,OK 73019,USA
[8] Department of Physics,University of Wisconsin,Madison,WI 53706,USA
[9] Physics Division,Lawrence Berkeley National Laboratory,1 Cyclotron Road,Berkeley,CA 94720,USA
[10] CERN,European Organization for Nuclear Research,CH-1211 Geneve 23,Switzerland
[11] Department of Physics,The Ohio State University,191 W.Woodruff Ave.,Columbus,OH 43210
[12] COMPAS Group,Institute for High Energy Physics,RU- 142284,Protvino,Russia
[13] LPNHE,IN2P3-CNRS et Universites de Paris 6 et 7,F-75252 Paris,France
[14] Max-Planck-Institute of Physics,80805 Munich,Germany
[15] Department of Physics,University of Washington,Seattle,WA 98195,USA
[16] Ludwig-Maximilians-Universitat,Fakultdt für Physik,Schellingstr.4,D-80799 München,Germany
[17] Enrico Fermi Institute and Department of Physics,University of Chicago,Chicago,IL 60637-1433,USA
[18] Department of Physics,Syracuse University,Syracuse,NY,13244,USA
[19] Department of Physics,Columbia University,538 W.120th Street,New York,NY,10027 USA
[20] High Energy Physics Group,Blackett Laboratory,Imperial College,Prince Consort Road,London SW7 2AZ,UK
[21] Jefferson Lab,12000 Jefferson Ave.,Newport News,VA 23606,USA
[22] Department of Physics,University of Virginia,PO Box 400714,Charlottesville,VA 22904,USA
[23] Fermi National Accelerator Laboratory,P.O.Box 500,Batavia,IL 60510,USA
[24] Kavli Institute for Cosmological Physics,University of Chicago,Chicago,IL 60637-1433,USA
[25] Department of Physics and Astronomy,University of Sussex,Falmer,Brighton BN1 9QH,UK
[26] Department of Physics,Northern Illinois University,DeKalb,IL 60115,USA
[27] Department of Physics and Astronomy,University of California,Irvine,CA 92697-4575,USA
[28] Michigan State University,Dept.of Physics and Astronomy,East Lansing,MI 48824-2320,USA
[29] Department of Physics,Royal Holloway,University of London,Egham,Surrey TW20 OEX,UK
[30] INFN-Sezione di Napoli,Complesso Universitario Monte Sant’Angelo,Via Cintia,80126 Napoli,Italy
[31] Institut des Hautes Etudes Scientifiques,F-91440 Bures-sur-Yvette,France
[32] Departamento de Fisica,FCEyN,Universidad de Buenos Aires,Pab.1,Ciudad Universitaria,(1428) Capital Federal,Argentina
[33] Department of Physics and Astronomy,Northwestern University,Evanston,IL 60208,USA
[34] Department of Physics,University of Colorado at Boulder,Boulder,CO 80309,USA
[35] Nikhef,P.O.Box 41882,1009 DB Amsterdam,the Netherlands
[36] Institute for Particle Physics,ETH Zurich,8093 Zurich,Switzerland
[37] Universitat Bonn,Physikalisches Institut,Nussallee 12,D-53115 Bonn,Germany
[38] Deutsches Elektronen-Synchrotron DESY,Notkestraβe 85,D-22607 Hamburg,Germany
[39] Budker Institute of Nuclear Physics SB RAS
[40] Novosibirsk State University,Novosibirsk 630090,Russia
[41] Departamento de Fisica Teorica,Instituto de Fisica,Universidad Nacional Autonoma de Mexico,Mexico D.F.04510,Mexico
[42] Institut fur Physik,Johannes-Gutenberg Universitat Mainz,D-55099 Mainz,Germany
[43] Department of Astronomy,University of Illinois,1002 W.Green St.,Urbana,IL 61801,USA
[44] Department of Physics,University of Illinois,1110 W.Green St.,Urbana,IL 61801,USA
[45] University of Hamburg,Notkestrasse 85,D-22607 Hamburg,Germany
[46] Denys Wilkinson Building,Department of Physics,University of Oxford,Oxford,OX1 3RH,UK
[47] University of Pittsburgh,Department of Physics and Astronomy,3941 O’Hara St,Pittsburgh,PA 15260,USA
[48] Bartol Research Institute,University of Delaware,Newark,DE 19716,USA
[49] Department of Physics and Astronomy,Tufts University,4 Colby Street,Medford,MA 02155
[50] CEA/Saclay,DSM/IRFU,BP 2,F-91191 Gif-sur-Yvette,France
