# Dependence of atmospheric muon flux on seawater depth measured with the first KM3NeT detection units **Authors:** KM3NeT Collaboration: M. Ageron, S. Aiello, F. Ameli, M. Andre, G., Androulakis, M. Anghinolfi, G. Anton, M. Ardid, J. Aublin, C. Bagatelas, G., Barbarino, B. Baret, S. Basegmez du Pree, A. Belias, E. Berbee, A. M. van den, Berg, V. Bertin, V. van Beveren, S. Biagi, A. Biagioni, S. Bianucci, M., Billault, M. Bissinger, R. de Boer, J. Boumaaza, S. Bourret, M. Bouta, M., Bouwhuis, C. Bozza, H.Br\^anza\c{s}, M. Briel, M. Bruchner, R. Bruijn, J., Brunner, E. Buis, R. Buompane, J. Busto, G. Cacopardo, L. Caillat, C. Cal\`i,, D. Calvo, A. Capone, S. Celli, M. Chabab, N. Chau, S. Cherubini, V., Chiarella, T. Chiarusi, M. Circella, R. Cocimano, J. A. B. Coelho, A., Coleiro, M. Colomer Molla, S. Colonges, R. Coniglione, A. Cosquer, P. Coyle,, A. Creusot, G. Cuttone, C. D'Amato, A. D'Amico, A. D'Onofrio, R. Dallier, M., De Palma, C. De Sio, I. Di Palma, A. F. D\'iaz, D. Diego-Tortosa, C., Distefano, A. Domi, R. Don\`a, C. Donzaud, L. van Dooren, D. Dornic, M., D\"orr, M. Durocher, T. Eberl, T. van Eeden, I. El Bojaddaini, H. Eljarrari,, D. Elsaesser, A. Enzenh\"ofer, P. Fermani, G. Ferrara, M. D. Filipovi\'c, L., A. Fusco, D. Gajanana, T. Gal, A. Garcia Soto, F. Garufi, L. Gialanella, E., Giorgio, A. Giuliante, S. R. Gozzini, R. Gracia, K. Graf, D. Grasso, T., Gr\'egoire, G. Grella, A. Grimaldi, A. Grmek, D. Guderian, M. Guerzoni, C., Guidi, S. Hallmann, H. Hamdaoui, H. van Haren, A. Heijboer, A. Hekalo, S., Henry, J. J. Hern\'andez-Rey, J. Hofest\"adt, F. Huang, E. Huesca Santiago,, G. Illuminati, C. W. James, P. Jansweijer, M. Jongen, M. de Jong, P. de Jong,, M. Kadler, P. Kalaczy\'nski, O. Kalekin, U. F. Katz, F. Kayzel, P. Keller, N., R. Khan Chowdhury, F. van der Knaap, E. N. Koffeman, P. Kooijman, J., Koopstra, A. Kouchner, M. Kreter, V. Kulikovskiy, Meghna K. K., R. Lahmann,, P. Lamare, G. Larosa, J. Laurence, R. Le Breton, F. Leone, E. Leonora, G., Levi, F. Librizzi, M. Lincetto, P. Litrico, C. D. Llorens Alvarez, A., Lonardo, F. Longhitano, D. Lopez-Coto, G. Maggi, J. Ma\'nczak, K. Mannheim,, A. Margiotta, A. Marinelli, C. Markou, L. Martin, J. A. Mart\'inez-Mora, A., Martini, F. Marzaioli, R. Mele, K. W. Melis, P. Migliozzi, E. Migneco, P., Mijakowski, L. S. Miranda, C. M. Mollo, M. Mongelli, M. Morganti, M. Moser,, A. Moussa, R. Muller, P. Musico, M. Musumeci, L. Nauta, S. Navas, C. A., Nicolau, C. Nielsen, B. \'O Fearraigh, M. Organokov, A. Orlando, V., Panagopoulos, G. Pancaldi, G. Papalashvili, R. Papaleo, C. Pastore, G. E., P\u{a}v\u{a}la\c{s}, G. Pellegrini, C. Pellegrino, M. Perrin-Terrin, P., Piattelli, K. Pikounis, O. Pisanti, C. Poir\`e, G. Polydefki, V. Popa, M., Post, T. Pradier, G. P\"uhlhofer, S. Pulvirenti, L. Quinn, F. Raffaelli, N., Randazzo, A. Rapicavoli, S. Razzaque, D. Real, S. Reck, J. Reubelt, G., Riccobene, L. Rigalleau, G. Rizza, R. Rocco, A. Rovelli, J. Royon, M. Salemi,, I. Salvadori, D. F. E. Samtleben, A. S\'anchez Losa, M. Sanguineti, A., Santangelo, D. Santonocito, P. Sapienza, J. Schmelling, V. Sciacca, D., Sciliberto, J. Seneca, I. Sgura, R. Shanidze, A. Sharma, F. Simeone,, A.Sinopoulou, B. Spisso, M. Spurio, D. Stavropoulos, J. Steijger, S. M., Stellacci, B. Strandberg, D. Stransky, T. St\"uven, M. Taiuti, Y. Tayalati,, E. Tenllado, D. T\'ezier, T. Thakore, S. Theraube, P. Timmer, S. Tingay, A., Trovato, S. Tsagkli, E. Tzamariudaki, D. Tzanetatos, C. Valieri, V. Van, Elewyck, F. Versari, S. Viola, D. Vivolo, G. de Wasseige, J. Wilms, R., Wojaczy\'nski, E. de Wolf, D. Zaborov, A. Zegarelli, J. D. Zornoza, J., Z\'u\~niga arXiv: 1906.02704 · 2020-02-28 ## TL;DR This paper reports on the first measurements of atmospheric muon flux at various seawater depths using the initial KM3NeT detection units, providing insights into deep-sea neutrino detection and calibration procedures. ## Contribution It presents the deployment, calibration, and initial muon flux measurements of KM3NeT's first detection units in the Mediterranean Sea. ## Key findings - Muon flux decreases with increasing seawater depth - Successful in-situ calibration of the detector - First deep-sea muon flux data from KM3NeT ## Abstract KM3NeT is a research infrastructure located in the Mediterranean Sea, that will consist of two deep-sea Cherenkov neutrino detectors. With one detector (ARCA), the KM3NeT Collaboration aims at identifying and studying TeV-PeV astrophysical neutrino sources. With the other detector (ORCA), the neutrino mass ordering will be determined by studying GeV-scale atmospheric neutrino oscillations. The first KM3NeT detection units were deployed at the Italian and French sites between 2015 and 2017. In this paper, a description of the detector is presented, together with a summary of the procedures used to calibrate the detector in-situ. Finally, the measurement of the atmospheric muon flux between 2232-3386 m seawater depth is obtained. ## Full text _Full body text omitted from this summary view._ Fetch the complete paper as Markdown: https://tomesphere.com/paper/1906.02704/full.md ## Figures 15 figures with captions in the complete paper: https://tomesphere.com/paper/1906.02704/full.md ## References 23 references — full list in the complete paper: https://tomesphere.com/paper/1906.02704/full.md --- Source: https://tomesphere.com/paper/1906.02704