Colin B. Adams,1 Giovanni Ambrosi,2 Michelangelo Ambrosio,2 Carla Aramo,2 Timothy Arlen,3 Wystan Benbow,4 Bruna Bertucci,2,5 Elisabetta Bissaldi,6,2 Jonathan Biteau,7,* Massimiliano Bitossi,2 Alfonso Boiano,2 Carmela Bonavolontà,2 Richard Bose,8 Aurelien Bouvier,7,** Mario Buscemi,2 Aryeh Brill,1 Anthony M. Brown,9 James H. Buckley,8 Rodolfo Canestrari,10 Massimo Capasso,11 Mirco Caprai,2 Paolo Coppi,12 Corbin E. Covault,13 Davide De Paoli,14,2 Leonardo Di Venere,6,2 Manel Errando,8 Stephen Fegan,15 Qi Feng,11 Emanuele Fiandrini,2,5 Amy Furniss,16 Markus Garczarczyk,17 Alasdair Gent,18 Nicola Giglietto,6,2 Francesco Giordano,6,2 Enrico Giro,19 Robert Halliday,20 Olivier Hervet,7 Gareth Hughes,4,21 Simone Incardonahttps://orcid.org/0000-0003-0676-3298,2,22 Thomas B. Humensky,23 Maria Ionica,2 Weidong Jin,24 Caitlin A. Johnson,7,*** David Kieda,25 Frank Krennrich,26 Andrey Kuznetsov,7,**** Jon Lapington,27 Francesco Licciulli,2 Serena Loporchio,6,2 Giovanni Marsella,2,28 Vincenzo Masone,2 Kevin Meagher,18,29 Thomas Meures,29 Brent A. W. Mode,29 Samuel A. I. Mognet,30 Reshmi Mukherjee,11 Akira Okumura,31,32 Francesca R. Pantaleo,6,2 Riccardo Paoletti,2,33 Federico Di Pierro,2 Deivid Ribeiro,1 Luca Riitano,29 Emmet Roache,4 Duncan Ross,27 Julien Rousselle,34 Andrea Rugliancich,2 Marcos Santander,24 Michael Schneider,7,35 Harm Schoorlemmer,36 Ruo-Yu Shang,3 Brandon Stevenson,3 Leonardo Stiaccini,2,33 Hiroyasu Tajima,31,32 Leslie P. Taylor,29 Julian Thornhill,27 Luca Tosti,2,5 Giovanni Tripodo,2,28 Valerio Vagellihttps://orcid.org/0000-0002-4495-9331,2,37 Massimo Valentino,2,38 Justin Vandenbroucke,29 Vladimir V. Vassiliev,3 Scott P. Wakely,39 Jason J. Watson,17 Richard White,36 Patrick Wilcox,40,41 David A. Williams,7 Matthew Wood,3,***** Peter Yu,3 Adrian Zink42
1Columbia Univ. (United States)
2Istituto Nazionale di Fisica Nucleare (Italy)
3Univ. of California, Los Angeles (United States)
4Harvard-Smithsonian Ctr. for Astrophysics (United States)
5Univ. degli Studi di Perugia (Italy)
6Politecnico di Bari (Italy)
7Institute for Particle Physics, Univ. of California, Santa Cruz (United States)
8Washington Univ. in St. Louis (United States)
9Ctr. for Advanced Instrumentation, Durham Univ. (United Kingdom)
10INAF - Istituto di Astrofisica Spaziale e Fisica cosmica Palermo (Italy)
11Barnard College, Columbia Univ. (United States)
12Yale Univ. (United States)
13Case Western Reserve Univ. (United States)
14Univ. degli Studi di Torino (Italy)
15Lab. Leprince-Ringuet, Ecole Polytechnique (France)
16California State Univ., East Bay (United States)
17Deutsches Elektronen-Synchrotron (Germany)
18Ctr. for Relativistic Astrophysics, Georgia Institute of Technology (United States)
19INAF - Osservatorio Astronomico di Padova (Italy)
20Michigan State Univ. (United States)
21Cherenkov Telescope Array Observatory gGmbH (Germany)
22Univ. degli studi di Palermo (Italy)
23SUNY Maritime College (United States)
24The Univ. of Alabama (United States)
25The Univ. of Utah (United States)
26Iowa State Univ. of Science and Technology (United States)
27Space Research Ctr., Univ. of Leicester (United Kingdom)
28Univ. degli Studi di Palermo (Italy)
29Wisconsin IceCube Particle Astrophysics Ctr., Univ. of Wisconsin-Madison (United States)
30The Pennsylvania State Univ. (United States)
31Institute for Space–Earth Environmental Research, Nagoya Univ. (Japan)
32Kobayashi-Maskawa Institute for the Origin of Particles and the Universe (Japan)
33Univ. degli Studi di Siena (Italy)
34Subaru Telescope, NAOJ (United States)
35Univ. of Maryland, College Park (United States)
36Max-Planck-Institut für Kernphysik (Germany)
37Agenzia Spaziale Italiana (Italy)
38Istituto di Scienze Applicate e Sistemi Intelligenti "Eduardo Caianiello" (Italy)
39Enrico Fermi Institute, The Univ. of Chicago (United States)
40Univ. of Minnesota, Twin Cities (United States)
41St. Cloud State Univ. (United States)
42Erlangen Ctr. for Astroparticle Physics, Friedrich-Alexander-Univ. Erlangen-Nürnberg (Germany)
*Present address: Université Paris-Saclay, CNRS/IN2P3, IJCLab, Orsay, France
**Present address: Verily Life Sciences, South San Francisco, California, United States
***Present address: NextEra Analytics, St. Paul, Minnesota, United States
****Present address: Apple Inc., Cupertino, California, United States
*****Present address: Facebook Inc., Menlo Park, California, United States