1. NASA Goddard Space Flight Center, Greenbelt, Maryland, United States
2. Clemson University, Department of Physics and Astronomy, Clemson, South Carolina, United States
3. Universitá di Pisa and Istituto Nazionale di Fisica Nucleare, Pisa, Italy
4. Rice University, Department of Physics and Astronomy, Houston, Texas, United States
5. Dipartimento Interateneo di Fisica dell’Universitá e del Politecnico di Bari, Bari, Italy
6. Louisiana State University, Department of Physics and Astronomy, Baton Rouge, Louisiana, United States
7. Stanford University, Kavli Institute for Particle Astrophysics and Cosmology, W. W. Hansen Experimental Physics Laboratory, Department of Physics and SLAC National Accelerator Laboratory, Stanford, California, United States
8. Universidade de Coimbra, Laboratório de Instrumentação e Física Experimental de Partículas, Departamento de Física, Coimbra, Portugal
9. University of Wisconsin–Madison, Department of Physics, Madison, Wisconsin, United States
10. Center for Theoretical Astrophysics, Los Alamos National Laboratory, Los Alamos, New Mexico, United States
11. Hiroshima University, Department of Physics, Hiroshima, Japan
12. U.S. Naval Research Laboratory, Space Science Division, Washington, DC, United States
13. OzGrav, University of Western Australia, Crawley, Western Australia, Australia
14. Argonne National Laboratory, Lemont, Illinois, United States
15. NASA Marshall Space Flight Center, Huntsville, Alabama, United States
16. Drexel University, Department of Physics, Philadelphia, Pennsylvania, United States
17. INFN, Sezione di Torino, Torino, Italy
18. NASA Postdoctoral Fellow, NASA Goddard Space Flight Center, Greenbelt, Maryland, United States
19. Karlsruhe Institute of Technology (KIT-ADL) – Hermann-von-Helmholtz-Platz, Karlsruhe, Germany
20. University of Tampa, Department of Chemistry, Biochemistry, and Physics, Tampa, Florida, United States
21. Yale University, Department of Physics, New Haven, Connecticut, United States
22. Istituto Nazionale di Fisica Nucleare, Sezione di Bari, Bari, Italy
23. The Pennsylvania State University, Institute for Gravitation and the Cosmos, Department of Physics, Department of Astronomy and Astrophysics, University Park, Pennsylvania, United States
24. Los Alamos National Laboratory, Los Alamos, New Mexico, United States
25. University of New Hampshire, Department of Physics and Astronomy, Durham, New Hampshire, United States
26. University of Johannesburg, Centre for Astro-Particle Physics, Department of Physics, Auckland Park, South Africa
27. University of Maryland, Department of Physics, College Park, Maryland, United States
28. SLAC National Accelerator Laboratory, Menlo Park, California, United States
29. National Research Council, Naval Research Laboratory, Washington, DC, United States
30. Deutsches Elektronen-Synchrotron (DESY), Zeuthen, Germany
31. Nagoya University, Institute for Space–Earth Environmental Research, Kobayashi-Maskawa Institute for the Origin of Particles and the Universe, Nagoya, Japan
32. University of California at Berkeley, Space Sciences Laboratory, Berkeley, California, United States