[1] Lab Annecy Le Vieux Phys Particules, F-74941 Annecy Le Vieux, France
[2] Univ Bari, Dipartimento Fis, I-70126 Bari, Italy
[3] Ist Nazl Fis Nucl, I-70126 Bari, Italy
[4] Inst High Energy Phys, Beijing 100039, Peoples R China
[5] Univ Bergen, Inst Phys, N-5007 Bergen, Norway
[6] Univ Calif Berkeley, Lawrence Berkeley Lab, Berkeley, CA 94720 USA
[7] Univ Birmingham, Birmingham B15 2TT, W Midlands, England
[8] Ruhr Univ Bochum, Inst Expt Phys 1, D-44780 Bochum, Germany
[9] Univ Bristol, Bristol BS8 1TL, Avon, England
[10] Univ British Columbia, Vancouver, BC V6T 1Z1, Canada
[11] Brunel Univ, Uxbridge UB8 3PH, Middx, England
[12] Budker Inst Nucl Phys, Novosibirsk 630090, Russia
[13] Univ Calif Irvine, Irvine, CA 92697 USA
[14] Univ Calif Los Angeles, Los Angeles, CA 90024 USA
[15] Univ Calif Riverside, Riverside, CA 92521 USA
[16] Univ Calif San Diego, La Jolla, CA 92093 USA
[17] Univ Calif Santa Barbara, Santa Barbara, CA 93106 USA
[18] Univ Calif Santa Cruz, Inst Particle Phys, Santa Cruz, CA 95064 USA
[19] CALTECH, Pasadena, CA 91125 USA
[20] Univ Cincinnati, Cincinnati, OH 45221 USA
[21] Univ Colorado, Boulder, CO 80309 USA
[22] Colorado State Univ, Ft Collins, CO 80523 USA
[23] Tech Univ Dresden, Inst Kern & Teilchenphys, D-01062 Dresden, Germany
[24] Ecole Polytech, LLP, F-91128 Palaiseau, France
[25] Univ Edinburgh, Edinburgh EH9 3JZ, Midlothian, Scotland
[26] Univ Ferrara, Dipartimento Fis, I-44100 Ferrara, Italy
[27] Ist Nazl Fis Nucl, I-44100 Ferrara, Italy
[28] Florida A&M Univ, Tallahassee, FL 32307 USA
[29] Ist Nazl Fis Nucl, Lab Nazl Frascati, I-00044 Frascati, Italy
[30] Univ Genoa, Dipartimento Fis, I-16146 Genoa, Italy
[31] Ist Nazl Fis Nucl, I-16146 Genoa, Italy
[32] Harvard Univ, Cambridge, MA 02138 USA
[33] Heidelberg Univ, Inst Phys, D-69120 Heidelberg, Germany
[34] Univ London Imperial Coll Sci Technol & Med, London SW7 2AZ, England
[35] Univ Iowa, Iowa City, IA 52242 USA
[36] Iowa State Univ, Ames, IA 50011 USA
[37] Lab Accelerateur Lineaire, F-91898 Orsay, France
[38] Lawrence Livermore Natl Lab, Livermore, CA 94550 USA
[39] Univ Liverpool, Liverpool L69 72E, Merseyside, England
[40] Univ London, Queen Mary, London E1 4NS, England
[41] Univ London Royal Holloway & Bedford New Coll, Egham TW20 0EX, Surrey, England
[42] Univ Louisville, Louisville, KY 40292 USA
[43] Univ Manchester, Manchester M13 9PL, Lancs, England
[44] Univ Maryland, College Pk, MD 20742 USA
[45] Univ Massachusetts, Amherst, MA 01003 USA
[46] MIT, Nucl Sci Lab, Cambridge, MA 02139 USA
[47] McGill Univ, Montreal, PQ H3A 2T8, Canada
[48] Univ Milan, Dipartimento Fis, I-20133 Milan, Italy
[49] Ist Nazl Fis Nucl, I-20133 Milan, Italy
[50] Univ Mississippi, University, MS 38677 USA