1. Boston University, Boston, MA 02215, USA
2. Perimeter Institute for Theoretical Physics, Waterloo, ON N2L 2Y5, Canada
3. University of Waterloo, Waterloo, Ontario, N2L 3G1 Canada, Canada
4. Massachusetts Institute of Technology, Cambridge, MA 02139, USA
5. Laboratoire de Physique Subatomique et de Cosmologie, Université Joseph Fourier Grenoble 1, CNRS/IN2P3, Institut National Polytechnique de Grenoble, 53, rue de Martyrs, 38026 Grenoble, France
6. University of California Los Angeles, Los Angeles, CA 90095, USA
7. Occidental College, Los Angeles, CA 90041, USA
8. University of Pennsylvania, Philadelphia, PA 19104, USA
9. Laboratorio de Fisica Nuclear y Astroparticulas, Universidad de Zaragoza, 50009 Zaragoza, Spain
10. Laboratorio Subterráneo de Canfranc, Huesca, Spain
11. CEA Saclay, Cédex, France
12. University of Sheffield, Sheffield S3 7RH, UK
13. Brandeis University, Waltham, MA 02453, USA
14. Harvard University, Cambridge, MA, 02140, USA
15. Nagasaki Institute of Applied Science, Nagasaki, Japan
16. University of Edinburgh, Edinburgh, EH9 3JZ, UK
17. University of New Mexico, Albuquerque, NM, 87131, USA
18. Universidad de Huelva, Campus El Carmen, 21071 Huelva, Spain
19. University of Utah, Salt Lake City, UT 84112, USA
20. University of Nottingham, University Park, Nottingham, NG7 2RD, UK
21. Kyoto University Kitashirakawa-oiwakecho, Sakyo-ku, Kyoto, 606-8502, Japan
22. Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
23. Institute of Particle and Nuclear Studies, KEK, Tsukuba, Japan
24. Temple University, Barton Hall, Philadelphia, PA 19122, USA
25. University of Warwick, Coventry, CV4 7AL, UK
26. New York University, New York, NY 10003, USA
27. Fundamental Particle Physics Laboratory, Nagoya University, Japan
28. Kamioka Observatory, ICRR, The University of Tokyo, Higashi-Mozumi, Kamioka cho, Hida 506-1205, Japan
29. Saga University, Saga, Japan
30. Scientific Balloon Laboratory, ISAS, JAXA, Yoshinodai 3-1-1, Sagamihara, Kanagawa, 229-8510, Japan
31. University of Ioannina, Ioannina, Gr 451 10, Greece