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24 results on '"Khakurdikar, Abha"'

1. Search for UHE neutrinos in the background of cosmic rays

Author

Khakurdikar, Abha R., Carvalho. Jr, Washington R., and Hörandel, Jörg R.

Subjects
Astrophysics - High Energy Astrophysical Phenomena, High Energy Physics - Experiment
Abstract

The main challenge in detecting ultra-high energy (UHE) neutrinos is discriminating a neutrino-induced shower in the background of showers initiated by ultra-high energy nuclei. The resulting shower development from neutrinos exhibits different characteristics from hadron-induced showers because neutrinos penetrate the atmosphere more deeply than hadrons. This study focuses on simulations of highly inclined neutrino-induced showers above $75^\circ$ zenith angles, exploring an extensive energy range from $1 \text{EeV}$ to $120 \text{EeV}$. These simulated showers have different ranges of interaction depths corresponding to each zenith angle, presenting diverse detection challenges. Our methodology utilises timing data from radio antennas for the shower front calculation for extensive air showers induced by neutrinos and nuclei. Furthermore, we incorporate signals obtained from Water Cherenkov detectors and the spatial distribution of stations registering signals in both Water Cherenkov detectors and radio antennas. We aim to classify neutrino-induced showers and background events stemming from nuclei by harnessing a decision tree classifier employing the Gini impurity method. Our framework yields excellent accuracy for separating the neutrinos from the background. The findings of this study offer significant advancements in the domain of UHE neutrino detection, shedding light on astrophysical phenomena associated with these elusive particles amidst the complex background of UHE nuclei.

Published
2024

2. RDSim, a fast and comprehensive simulation of radio detection of air showers

Author

Carvalho Jr., Washington R. de and Khakurdikar, Abha

Subjects
Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics
Abstract

We present RDSim, a fast and comprehensive framework for the simulation of the radio emission and detection of downgoing air showers. It can handle any downgoing shower that can be simulated with ZHAireS including those induced by CC and NC neutrino interactions and $\tau$ decays. RDSim is based on a superposition toymodel that disentangles the Askaryan and geomagnetic components of the shower emission. By using full ZHAireS simulations as input, it is able to estimate the full radio footprint on the ground. A single input simulation at a given energy and arrival direction can be scaled in energy and rotated in azimuth by taking into account all relevant effects. This makes it possible to simulate a huge number of geometries and energies using just a few ZHAireS input simulations. The framework takes into account the main characteristics of the detector, such as trigger setups, thresholds and antenna patterns. To accommodate arrays that use particle detectors for triggering, such as the Auger RD extension, it also features a second toymodel to estimate the muon density at ground level, which is used to perform simple particle trigger simulations. It's speed makes it possible to investigate in detail events with a very low trigger probability, as well as many geometrical effects due to the array layout. In case more detailed studies of the radio detection are needed, RDSim can also be used to sweep the phase-space for the efficient creation of dedicated full simulation sets. This is particularly important in the case of neutrino events, that have extra variables that greatly impact shower characteristics, such as interaction or $\tau$ decay depth as well as the type of interaction and it's fluctuations., Comment: arXiv admin note: text overlap with arXiv:2307.07351

Published
2023

3. RDSim: A fast, accurate and flexible framework for the simulation of the radio emission and detection of downgoing air showers

Author

Carvalho Jr., Washington R. de and Khakurdikar, Abha

Subjects
Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract

RDSim is a fast, accurate and flexible framework for the simulation of the radio emission of downgoing air showers and its detection by an arbitrary array, including showers initiated by neutrino interactions or tau-lepton decays. RDSim was build around speed and is based on simple and fast, yet still accurate, toymodel-like approaches. It models the radio emission using a superposition emission model that disentangles the Askaryan and geomagnetic components of the shower radio emission. It uses full ZHAireS simulations as an input to estimate the electric field at any position on the ground. A single input simulation can be scaled in energy and rotated in azimuth, taking into account all relevant effects. This makes it possible to simulate a huge number of geometries and energies using just a few ZHAireS input simulations. RDSim takes into account the main characteristics of the detector, such as trigger setups, thresholds and antenna patterns. To accommodate arrays that use particle detectors for triggering, such as the Auger RD extension, it also features a second toymodel to estimate the muon density at ground level and perform simple particle trigger simulations. Owing to the large statistics made possible by its speed, it can be used to investigate in detail events with a very low trigger probability and geometrical effects due to the array layout, making it specially suited to be used as a fast and accurate aperture calculator. In case more detailed studies of the radio emission and detector response are desired, RDSim can also be used to sweep the phase-space for the efficient creation of dedicated full simulation sets. This is particularly important in the case of neutrino events, that have extra variables that greatly impact shower characteristics, such as interaction or $\tau$ decay depth as well as the type of interaction and it's fluctuations.

Published
2023

6. RDSim, a fast and comprehensive simulation of radio detection of air showers

Author

Carvalho, Washington R. de and Khakurdikar, Abha

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), FOS: Physical sciences, Astrophysics - High Energy Astrophysical Phenomena, Astrophysics - Instrumentation and Methods for Astrophysics, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

We present RDSim, a fast and comprehensive framework for the simulation of the radio emission and detection of downgoing air showers. It can handle any downgoing shower that can be simulated with ZHAireS including those induced by CC and NC neutrino interactions and $\tau$ decays. RDSim is based on a superposition toymodel that disentangles the Askaryan and geomagnetic components of the shower emission. By using full ZHAireS simulations as input, it is able to estimate the full radio footprint on the ground. A single input simulation at a given energy and arrival direction can be scaled in energy and rotated in azimuth by taking into account all relevant effects. This makes it possible to simulate a huge number of geometries and energies using just a few ZHAireS input simulations. The framework takes into account the main characteristics of the detector, such as trigger setups, thresholds and antenna patterns. To accommodate arrays that use particle detectors for triggering, such as the Auger RD extension, it also features a second toymodel to estimate the muon density at ground level, which is used to perform simple particle trigger simulations. It's speed makes it possible to investigate in detail events with a very low trigger probability, as well as many geometrical effects due to the array layout. In case more detailed studies of the radio detection are needed, RDSim can also be used to sweep the phase-space for the efficient creation of dedicated full simulation sets. This is particularly important in the case of neutrino events, that have extra variables that greatly impact shower characteristics, such as interaction or $\tau$ decay depth as well as the type of interaction and it's fluctuations., Comment: arXiv admin note: text overlap with arXiv:2307.07351

Published
2023

7. RDSim: A fast, accurate and flexible framework for the simulation of the radio emission and detection of downgoing air showers

Author

Carvalho, Washington R. de and Khakurdikar, Abha

Subjects
High Energy Astrophysical Phenomena (astro-ph.HE), FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract

RDSim is a fast, accurate and flexible framework for the simulation of the radio emission of downgoing air showers and its detection by an arbitrary array, including showers initiated by neutrino interactions or tau-lepton decays. RDSim was build around speed and is based on simple and fast, yet still accurate, toymodel-like approaches. It models the radio emission using a superposition emission model that disentangles the Askaryan and geomagnetic components of the shower radio emission. It uses full ZHAireS simulations as an input to estimate the electric field at any position on the ground. A single input simulation can be scaled in energy and rotated in azimuth, taking into account all relevant effects. This makes it possible to simulate a huge number of geometries and energies using just a few ZHAireS input simulations. RDSim takes into account the main characteristics of the detector, such as trigger setups, thresholds and antenna patterns. To accommodate arrays that use particle detectors for triggering, such as the Auger RD extension, it also features a second toymodel to estimate the muon density at ground level and perform simple particle trigger simulations. Owing to the large statistics made possible by its speed, it can be used to investigate in detail events with a very low trigger probability and geometrical effects due to the array layout, making it specially suited to be used as a fast and accurate aperture calculator. In case more detailed studies of the radio emission and detector response are desired, RDSim can also be used to sweep the phase-space for the efficient creation of dedicated full simulation sets. This is particularly important in the case of neutrino events, that have extra variables that greatly impact shower characteristics, such as interaction or $\tau$ decay depth as well as the type of interaction and it's fluctuations.

Published
2023

9. The upgrade of the Pierre Auger Observatory with the Scintillator Surface Detector

Author

Pierre Auger Collaboration, Cataldi, G., Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almela, Alejandro, Alvarez-Muniz, Jaime, Alves Batista, Rafael, Anastasi, Gioacchino Alex, Anchordoqui, Luis A., Andrada, Belén, Andringa, Sofia, Aramo, Carla, Araújo Ferreira, Paulo Ricardo, Arteaga Velazquez, Juan Carlos, Asorey, Hernán Gonzalo, Assis, Pedro, Avila, Gualberto, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Barreira Luz, Ricardo Jorge, Becker, Karl-Heinz, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bertou, Xavier, Biermann, Peter L., Binet, Virginia, Bismark, Kathrin, Bister, Teresa, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Bohacova, Martina, boncioli, denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, Büsken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Carceller, Juan Miguel, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agustín, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Conceição, Rúben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., Almeida, Rogerio M. de, Jesús, Joaquín de, Jong, Sijbrand J. de, De Mauro, Giuseppe, Mello Neto, João de, De Mitri, Ivan, Oliveira, Jaime de, Oliveira Franco, Danelise de, Palma, Francesco de, Souza, Vitor de, De Vito, Emanuele, Río, Mariano del, Deligny, Olivier, Deval, Luca, Matteo, Armando di, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, Anjos, Rita dos, Santos, Diego dos, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys R., Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipcic, Andrej, Fitoussi, Thomas, Fodran, Tomáš, Freire, Martín Miguel, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, García Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, GIACCARI, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, Gonzalez, Nicolas Martin, Goos, Isabel, Gora, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia María, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, Hörandel, Jörg, Horvath, Pavel, Hrabovsky, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Juryšek, Jakub, Kääpä, Alex, Kampert, Karl-Heinz, Karastathis, Nikolaos, Keilhauer, Bianca, Kemp, Julian, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Köpke, Marcel, Kunka, Norbert, Lago, Bruno L., Lang, Rodrigo Guedes, Langner, Niklas, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, LOPES, Luis, López, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariazzi, Analisa, Maris, Ioana Codrina, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Merenda, Kevin-Druis, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, François, Morello, Carlo, Mostafa, Miguel, Müller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco Stein, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Nosek, Dalibor, Novotný, Vladimír, Nozka, Libor, Nucita, Achille, Nunez, Luis A., Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pedreira, Francisco, Pękala, Jan, Pelayo, Rodrigo, Peña-Rodríguez, Jesús, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perlin, Matías, Perrone, Lorenzo, Petrera, Sergio, Pierog, Tanguy, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Salamida, Francesco, Salazar, Humberto Ibarguen, Salina, Gaetano, Sanabria Gomez, Jose, Sánchez, Federico Andrés, Santos, Edivaldo Moura, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schovanek, Petr, Schröder, Frank G., Schröder, Sonja, Schulte, Josina, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smida, Radomir, Sommers, Paul, Soriano, Jorge F., Souchard, Julien, Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijarvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberic, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara Keiko Oliveira, Watson, Alan, Weber, Marc, Weindl, Andreas, Wiencke, Lawrence, Wilczyński, Henryk, Wirtz, Marcus, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
Pierre Auger Observatory, Photomultiplier, business.industry, Physics, Astronomy, Detector, Electrical engineering, Scintillator, Data acquisition, Upgrade, Observatory, Experimental High Energy Physics, ddc:530, Electronics, High Energy Physics, business
Abstract

Since its full commissioning in 2008, the Pierre Auger Observatory has consistently demonstrated its scientific productivity. A major upgrade of the Surface Detector array (SD) improves the capabilities of measuring the different components of extensive air showers. One of the elements of the upgrade consists of new Scintillator Surface Detectors (SSD) placed on top of the Water-Cherenkov stations of the SD. At the Observatory, the integration of the SSD components and their deployment in the array is well advanced. In this paper, the main challenges and characteristics of the construction and installation will be reviewed. Started in 2016, an Engineering Array of twelve upgraded stations has been taking data in the field. In March 2019, a preproduction array of 77 SSDs started data acquisition with an adapted version of non-upgraded electronics. It is collecting events and proving the goodness of SSD design. Since December 2020, the upgraded electronics boards are being deployed in the field together with the photomultiplier tubes, increasing the number of SSD detectors, which are taking data continuosly with good stability. In this paper, the-long term performance of a subset of stations acquiring data for more than two years will be discussed. The data collected so far demonstrate the quality of the new detectors and the physics potential of the upgrade project

Published
2022

10. Indication of a mass-dependent anisotropy above 10 18.7 eV in the hybrid data of the Pierre Auger Observatory

Author

Pierre Auger Collaboration, Mayotte, Eric, Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almela, Alejandro, Alvarez-Muniz, Jaime, Alves Batista, Rafael, Anastasi, Gioacchino Alex, Anchordoqui, Luis A., Andrada, Belén, Andringa, Sofia, Aramo, Carla, Araújo Ferreira, Paulo Ricardo, Arteaga Velazquez, Juan Carlos, Asorey, Hernán Gonzalo, Assis, Pedro, Avila, Gualberto, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Barreira Luz, Ricardo Jorge, Becker, Karl-Heinz, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bertou, Xavier, Biermann, Peter L., Binet, Virginia, Bismark, Kathrin, Bister, Teresa, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Bohacova, Martina, boncioli, denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, Büsken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Carceller, Juan Miguel, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agustín, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Conceição, Rúben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., Almeida, Rogerio M. de, Jesús, Joaquín de, Jong, Sijbrand J. de, De Mauro, Giuseppe, Mello Neto, João de, De Mitri, Ivan, Oliveira, Jaime de, Oliveira Franco, Danelise de, Palma, Francesco de, Souza, Vitor de, De Vito, Emanuele, Río, Mariano del, Deligny, Olivier, Deval, Luca, Matteo, Armando di, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, Anjos, Rita dos, Santos, Diego dos, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys R., Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipcic, Andrej, Fitoussi, Thomas, Fodran, Tomáš, Freire, Martín Miguel, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, García Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, GIACCARI, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, Gonzalez, Nicolas Martin, Goos, Isabel, Gora, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia María, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, Hörandel, Jörg, Horvath, Pavel, Hrabovsky, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Juryšek, Jakub, Kääpä, Alex, Kampert, Karl-Heinz, Karastathis, Nikolaos, Keilhauer, Bianca, Kemp, Julian, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Köpke, Marcel, Kunka, Norbert, Lago, Bruno L., Lang, Rodrigo Guedes, Langner, Niklas, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, LOPES, Luis, López, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariazzi, Analisa, Maris, Ioana Codrina, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Merenda, Kevin-Druis, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, François, Morello, Carlo, Mostafa, Miguel, Müller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco Stein, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Nosek, Dalibor, Novotný, Vladimír, Nozka, Libor, Nucita, Achille, Nunez, Luis A., Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pedreira, Francisco, Pękala, Jan, Pelayo, Rodrigo, Peña-Rodríguez, Jesús, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perlin, Matías, Perrone, Lorenzo, Petrera, Sergio, Pierog, Tanguy, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Salamida, Francesco, Salazar, Humberto Ibarguen, Salina, Gaetano, Sanabria Gomez, Jose, Sánchez, Federico Andrés, Santos, Edivaldo Moura, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schovanek, Petr, Schröder, Frank G., Schröder, Sonja, Schulte, Josina, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smida, Radomir, Sommers, Paul, Soriano, Jorge F., Souchard, Julien, Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijarvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberic, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara Keiko Oliveira, Watson, Alan, Weber, Marc, Weindl, Andreas, Wiencke, Lawrence, Wilczyński, Henryk, Wirtz, Marcus, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
Physics, Pierre Auger Observatory, Astronomy, Astrophysics, Galactic plane, Mass composition, Threshold energy, Distribution (mathematics), Experimental High Energy Physics, Sensitivity (control systems), High Energy Physics, ddc:620, Anisotropy, Hybrid data, Engineering & allied operations
Abstract

We test the hypothesis of an anisotropy laying along the galactic plane which depends on the mass of primary cosmic-rays. The sensitivity to primary mass is provided by the depth of shower maximum, $X_\text{max}$, from hybrid events measured at the Pierre Auger Observatory. The 14 years of available data are split into on- and off-plane regions using the galactic latitude of each event to form two distributions in $X_\text{max}$, which are compared using the Anderson-Darling 2-samples test. A scan over a subset of the data is used to select an optimal threshold energy of $10^{18.7}$ eV and a galactic latitude splitting at $|b| = 30^\circ$, which are then set as a prescription for the remaining data. With these thresholds, the distribution of $X_\text{max}$ from the on-plane region is found to have a $9.1 \pm 1.6^{+2.1}_{-2.2}$ g/cm$^{2}$ shallower mean and a $5.9\pm2.1^{+3.5}_{-2.5}$ g/cm$^{2}$ narrower width than that of the off-plane region. These differences are as such to indicate that the mean mass of primary particles arriving from the on-plane region is greater than that of those coming from the off-plane region. Monte-Carlo studies yield a $4.4\,\sigma$ post-penalization statistical significance for the independent data. Including the scanned data results in a $4.9^{+1.4}_{-1.5}\,\sigma$ post-penalization statistical significance, where the uncertainties are of systematic origin. Accounting for systematic uncertainties leads to an indication for anisotropy in mass composition above $10^{18.7}$ eV at a confidence level of $3.3\,\sigma$. The anisotropy is observed independently at each of the four fluorescence telescope sites. Interpretations of possible causes of the observed effect are discussed.

Published
2022
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11. A tau scenario application to a search for upward-going showers with the Fluorescence Detector of the Pierre Auger Observatory

Author

Pierre Auger Collaboration, Caracas, Ioana Alexandra, Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almela, Alejandro, Alvarez-Muniz, Jaime, Alves Batista, Rafael, Anastasi, Gioacchino Alex, Anchordoqui, Luis A., Andrada, Belén, Andringa, Sofia, Aramo, Carla, Araújo Ferreira, Paulo Ricardo, Arteaga Velazquez, Juan Carlos, Asorey, Hernán Gonzalo, Assis, Pedro, Avila, Gualberto, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Barreira Luz, Ricardo Jorge, Becker, Karl-Heinz, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bertou, Xavier, Biermann, Peter L., Binet, Virginia, Bismark, Kathrin, Bister, Teresa, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Bohacova, Martina, boncioli, denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, Büsken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Carceller, Juan Miguel, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agustín, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Conceição, Rúben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., Almeida, Rogerio M. de, Jesús, Joaquín de, Jong, Sijbrand J. de, De Mauro, Giuseppe, Mello Neto, João de, De Mitri, Ivan, Oliveira, Jaime de, Oliveira Franco, Danelise de, Palma, Francesco de, Souza, Vitor de, De Vito, Emanuele, Río, Mariano del, Deligny, Olivier, Deval, Luca, Matteo, Armando di, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, Anjos, Rita dos, Santos, Diego dos, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys R., Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipcic, Andrej, Fitoussi, Thomas, Fodran, Tomáš, Freire, Martín Miguel, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, García Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, GIACCARI, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, Gonzalez, Nicolas Martin, Goos, Isabel, Gora, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia María, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, Hörandel, Jörg, Horvath, Pavel, Hrabovsky, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Juryšek, Jakub, Kääpä, Alex, Kampert, Karl-Heinz, Karastathis, Nikolaos, Keilhauer, Bianca, Kemp, Julian, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Köpke, Marcel, Kunka, Norbert, Lago, Bruno L., Lang, Rodrigo Guedes, Langner, Niklas, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, LOPES, Luis, López, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariazzi, Analisa, Maris, Ioana Codrina, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Merenda, Kevin-Druis, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, François, Morello, Carlo, Mostafa, Miguel, Müller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco Stein, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Nosek, Dalibor, Novotný, Vladimír, Nozka, Libor, Nucita, Achille, Nunez, Luis A., Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pedreira, Francisco, Pękala, Jan, Pelayo, Rodrigo, Peña-Rodríguez, Jesús, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perlin, Matías, Perrone, Lorenzo, Petrera, Sergio, Pierog, Tanguy, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Salamida, Francesco, Salazar, Humberto Ibarguen, Salina, Gaetano, Sanabria Gomez, Jose, Sánchez, Federico Andrés, Santos, Edivaldo Moura, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schovanek, Petr, Schröder, Frank G., Schröder, Sonja, Schulte, Josina, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smida, Radomir, Sommers, Paul, Soriano, Jorge F., Souchard, Julien, Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijarvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberic, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara Keiko Oliveira, Watson, Alan, Weber, Marc, Weindl, Andreas, Wiencke, Lawrence, Wilczyński, Henryk, Wirtz, Marcus, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
Pierre Auger Observatory, Physics, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Detector, Astrophysics::Instrumentation and Methods for Astrophysics, Flux, Astrophysics, Spectral line, Path length, Experimental High Energy Physics, High Energy Physics::Experiment, High Energy Physics, ddc:620, Engineering & allied operations, Energy (signal processing), Intensity (heat transfer), Zenith
Abstract

Recent observations of two coherent radio pulses with the ANITA detector can be interpreted as steeply upward-going cosmic-ray showers with energies of a few tenths of an EeV and remain unexplained. The Pierre Auger Observatory has a large exposure to such upward propagating shower-like events, and has used 14 years of its Fluorescence Detector (FD) data to perform a generic search for such events with elevation angles greater than 20$^\circ$ from the horizon. Here this search is recast to constrain models generating high energy $\tau$-leptons. For maximal flexibility, only the propagation, decay, and interactions of $\tau$-leptons are treated in this analysis, meaning that the results are independent of the $\tau$-production scenario. This treatment allows for the application of these results to the wide range of models producing $\tau$-leptons that have been proposed to describe the "anomalous" ANITA events. The goal of this study is accomplished by generating $\tau$-leptons within the Earth and its atmosphere with an intensity dependent on the media density. The zenith angle, location and calorimetric energy of any resulting $\tau$-induced air showers are then used to calculate the exposure of the FD of the Pierre Auger Observatory to $\tau$ primaries. Differential limits as low as $10^{-9}$GeV s$^{-1}$cm$^{-2}$sr$^{-1}$ to the flux of $\tau$-leptons produced with less than a 50 km path length below the Earth's surface are reported for several zenith angle ranges and primary energy spectra. Full exposure and sensitivity information is provided, facilitating the application of these results to different $\tau$-lepton production models.

Published
2022
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12. Arrival Directions of Cosmic Rays above 32 EeV from Phase One of the Pierre Auger Observatory

Author

Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almeida Cheminant, Kevin, Almela, Alejandro, Alvarez-Muñiz, Jaime, Alves Batista, Rafael, Ammerman Yebra, Juan, Anastasi, Gioacchino Alex, Anchordoqui, Luis, Andrada, Belén, Andringa, Sofia, Aramo, Carla, Araújo Ferreira, Paulo Ricardo, Arnone, Enrico, Arteaga Velázquez, Juan Carlos, Asorey, Hernán Gonzalo, Assis, Pedro, Avila, Gualberto, Avocone, Emanuele, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bhatta, Gopal, Biermann, Peter, Binet, Virginia, Bismark, Kathrin, Bister, Teresa Karolin, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Blümer, Johannes, Boháčová, Martina, Boncioli, Denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, Büsken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agustín, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Conceição, Ruben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., de Almeida, Rogerio M., de Jesús, Joaquín, de Jong, Sijbrand J., de Mello Neto, J. R. T., De Mitri, Ivan, de Oliveira, Jaime, de Oliveira Franco, Danelise, de Palma, Francesco, de Souza, Vitor, De Vito, Emanuele, Del Popolo, Antonino, del Río, Mariano, Deligny, Olivier, Deval, Luca, di Matteo, Armando, Dobre, Madalina, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, dos Anjos, Rita, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys, Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipčič, Andrej, Fitoussi, Thomas, Fodran, Tomas, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, Giaccari, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, González, Nicolás, Goos, Isabel, Góra, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, Hörandel, Jörg, Horvath, Pavel, Hrabovský, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Jurysek, Jakub, Kääpä, Alex, Kampert, Karl-Heinz, Keilhauer, Bianca, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Knapp, Felix, Kunka, Norbert, Lago, Bruno L., Langner, Niklas Uwe, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, Lopes, Luis, López, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariani, Federico Maria, Mariazzi, Analisa, Mariş, Ioana, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mayotte, Sonja, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, François, Morejon, Leonel, Morello, Carlo, Mostafá, Miguel, Müller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Nicora, Gabriela, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Norwood, Ian, Nosek, Dalibor, Novotny, Vladimir, Nožka, Libor, Nucita, Achille, Núñez, Luis, Oliveira, Cainã, Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pękala, Jan, Pelayo, Rodrigo, Peña-Rodriguez, Jesús, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perrone, Lorenzo, Petrera, Sergio, Petrucci, Camilla, Pierog, Tanguy, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Saharan, Mohit, Salamida, Francesco, Salazar, Humberto, Salina, Gaetano, Sanabria Gomez, Jose, Sánchez, Federico, Moura Santos, Edivaldo, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schoorlemmer, Harm, Schovánek, Petr, Schröder, Frank G., Schulte, Josina, Schulz, Tobias, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smau, Raluca, Šmída, Radomir, Sommers, Paul, Soriano, Jorge F., Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Straub, Maximilian, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijärvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberič, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara, Watson, Alan, Weindl, Andreas, Wiencke, Lawrence, Wilczyński, Henryk, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
flux, observatory, angular correlation, cosmic radiation: energy, anisotropy, cosmic radiation: UHE, Auger, experimental results
Abstract

33 Seiten (2022).

Published
2022
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13. A Search for Photons with Energies Above 2 × 10$^{17}$ eV Using Hybrid Data from the Low-Energy Extensions of the Pierre Auger Observatory

Author

Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almeida Cheminant, Kevin, Almela, Alejandro, Alvarez-Muñiz, Jaime, Alves Batista, Rafael, Ammerman Yebra, Juan, Anastasi, Gioacchino Alex, Anchordoqui, Luis, Andrada, Belén, Andringa, Sofia, Aramo, Carla, Araújo Ferreira, Paulo Ricardo, Arnone, Enrico, Arteaga Velázquez, Juan Carlos, Asorey, Hernán Gonzalo, Assis, Pedro, Avila, Gualberto, Avocone, Emanuele, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bhatta, Gopal, Biermann, Peter, Binet, Virginia, Bismark, Kathrin, Bister, Teresa Karolin, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Blümer, Johannes, Boháčová, Martina, Boncioli, Denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, Büsken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agustín, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Conceição, Ruben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., de Almeida, Rogerio M., de Jesús, Joaquín, de Jong, Sijbrand J., de Mello Neto, J. R. T., De Mitri, Ivan, de Oliveira, Jaime, de Oliveira Franco, Danelise, de Palma, Francesco, de Souza, Vitor, De Vito, Emanuele, Del Popolo, Antonino, del Río, Mariano, Deligny, Olivier, Deval, Luca, di Matteo, Armando, Dobre, Madalina, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, dos Anjos, Rita, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys, Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipčič, Andrej, Fitoussi, Thomas, Fodran, Tomas, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, Garcia Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, Giaccari, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, González, Nicolás, Goos, Isabel, Góra, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, Hörandel, Jörg, Horvath, Pavel, Hrabovský, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Jurysek, Jakub, Kääpä, Alex, Kampert, Karl-Heinz, Keilhauer, Bianca, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Knapp, Felix, Kunka, Norbert, Lago, Bruno L., Langner, Niklas Uwe, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, Lopes, Luis, López, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariani, Federico Maria, Mariazzi, Analisa, Mariş, Ioana, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mayotte, Sonja, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, François, Morejon, Leonel, Morello, Carlo, Mostafá, Miguel, Müller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Nicora, Gabriela, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Norwood, Ian, Nosek, Dalibor, Novotny, Vladimir, Nožka, Libor, Nucita, Achille, Núñez, Luis, Oliveira, Cainã, Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pękala, Jan, Pelayo, Rodrigo, Peña-Rodriguez, Jesús, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perrone, Lorenzo, Petrera, Sergio, Petrucci, Camilla, Pierog, Tanguy, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Saharan, Mohit, Salamida, Francesco, Salazar, Humberto, Salina, Gaetano, Sanabria Gomez, Jose, Sánchez, Federico, Moura Santos, Edivaldo, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schoorlemmer, Harm, Schovánek, Petr, Schröder, Frank G., Schulte, Josina, Schulz, Tobias, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smau, Raluca, Šmída, Radomir, Sommers, Paul, Soriano, Jorge F., Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijärvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberič, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara, Watson, Alan, Weindl, Andreas, Wiencke, Lawrence, Wilczyński, Henryk, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
energy: high, hybrid, Non-thermal radiation sources (1119), Ultra-high-energy cosmic radiation (1733), UHE, Auger, observatory, cosmic radiation, gamma ray, Multivariate analysis (1913), Cosmic-ray showers (327), Particle astrophysics (96), photon: flux
Abstract

15 Seiten (2022).

Published
2022
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14. Searches for Ultra-High-Energy Photons at the Pierre Auger Observatory

Author

Abreu, Pedro, Aglietta, Marco, Allekotte, Ingomar, Almeida Cheminant, Kevin, Almela, Alejandro, Alvarez-Muñiz, Jaime, Ammerman Yebra, Juan, Anastasi, Gioacchino Alex, Anchordoqui, Luis, Andrada, Belén, Andringa, Sofia, Aramo, Carla, Araújo Ferreira, Paulo Ricardo, Arnone, Enrico, Arteaga Velázquez, Juan Carlos, Asorey, Hernán Gonzalo, Assis, Pedro, Avila, Gualberto, Avocone, Emanuele, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bhatta, Gopal, Biermann, Peter, Binet, Virginia, Bismark, Kathrin, Bister, Teresa Karolin, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Blümer, Johannes, Boháčová, Martina, Boncioli, Denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, Büsken, Max, Bwembya, Anthony, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Caracas, Ioana, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agustín, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Conceição, Ruben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Cristinziani, Markus, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., de Almeida, Rogerio M., de Jesús, Joaquín, de Jong, Sijbrand J., de Mello Neto, Joao, De Mitri, Ivan, de Oliveira, Jaime, de Oliveira Franco, Danelise, de Palma, Francesco, de Souza, Vitor, De Vito, Emanuele, Del Popolo, Antonino, Deligny, Olivier, Deval, Luca, di Matteo, Armando, Dobre, Madalina, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, dos Anjos, Rita, Ebr, Jan, Eman, Mohamed, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys, Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipčič, Andrej, Fitoussi, Thomas, Fodran, Tomas, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, Giaccari, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, González, Nicolás, Goos, Isabel, Góra, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hojvat, Carlos, Hörandel, Jörg, Horvath, Pavel, Hrabovský, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Jurysek, Jakub, Kääpä, Alex, Kampert, Karl-Heinz, Keilhauer, Bianca, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Knapp, Felix, Kunka, Norbert, Lago, Bruno L., Langner, Niklas Uwe, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, Lopes, Luis, López, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariani, Federico Maria, Mariazzi, Analisa, Mariş, Ioana, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Martins, Miguel A., Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mayotte, Sonja, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, François, Morejon, Leonel, Morello, Carlo, Müller, Ana L., Mulrey, Katharine, Mussa, Roberto, Muzio, Marco, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Nicora, Gabriela, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Norwood, Ian, Nosek, Dalibor, Novotny, Vladimir, Nožka, Libor, Nucita, Achille, Núñez, Luis, Oliveira, Cainã, Palatka, Miroslav, Pallotta, Juan, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pękala, Jan, Pelayo, Rodrigo, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perrone, Lorenzo, Petrera, Sergio, Petrucci, Camilla, Pierog, Tanguy, Pimenta, Mário, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Pourmohammad Shavar, Mohsen, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Saharan, Mohit, Salamida, Francesco, Salazar, Humberto, Salina, Gaetano, Sanabria Gomez, Jose, Sánchez, Federico, Moura Santos, Edivaldo, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schoorlemmer, Harm, Schovánek, Petr, Schröder, Frank G., Schulte, Josina, Schulz, Tobias, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shivashankara, Shima Ujjani, Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smau, Raluca, Šmída, Radomir, Sommers, Paul, Soriano, Jorge F., Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Straub, Maximilian Philipp, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijärvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberič, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Watanabe, Clara, Watson, Alan, Weindl, Andreas, Wiencke, Lawrence, Wilczyński, Henryk, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, Zehrer, Lukas, The Pierre Auger Collaboration, Abreu, P, Aglietta, M, Allekotte, I, Cheminant, Ka, Almela, A, Alvarez-Muniz, J, Yebra, Ja, Anastasi, Ga, Anchordoqui, L, Andrada, B, Andringa, S, Aramo, C, Ferreira, Pra, Arnone, E, Velazquez, Jca, Asorey, H, Assis, P, Avila, G, Avocone, E, Badescu, Am, Bakalova, A, Balaceanu, A, Barbato, F, Bellido, Ja, Berat, C, Bertaina, Me, Bhatta, G, Biermann, Pl, Binet, V, Bismark, K, Bister, T, Biteau, J, Blazek, J, Bleve, C, Blumer, J, Bohacova, M, Boncioli, D, Bonifazi, C, Arbeletche, Lb, Borodai, N, Brack, J, Bretz, T, Orchera, Pgb, Briechle, Fl, Buchholz, P, Bueno, A, Buitink, S, Buscemi, M, Busken, M, Bwembya, A, Caballero-Mora, K, Caccianiga, L, Caracas, I, Caruso, R, Castellina, A, Catalani, F, Cataldi, G, Cazon, L, Cerda, M, Chinellato, Ja, Chudoba, J, Chytka, L, Clay, Rw, Cerutti, Acc, Colalillo, R, Coleman, A, Coluccia, Mr, Conceicao, R, Condorelli, A, Consolati, G, Contreras, F, Convenga, F, dos Santos, Dc, Covault, Ce, Cristinziani, M, Dasso, S, Daumiller, K, Dawson, Br, de Almeida, Rm, de Jesus, J, de Jong, Sj, Neto, Jrtd, De Mitri, I, de Oliveira, J, Franco, Dd, de Palma, F, de Souza, V, De Vito, E, Del Popolo, A, Deligny, O, Deval, L, di Matteo, A, Dobre, M, Dobrigkeit, C, D'Olivo, Jc, Mendes, Lmd, dos Anjos, Rc, Ebr, J, Eman, M, Engel, R, Epicoco, I, Erdmann, M, Etchegoyen, A, Falcke, H, Farmer, J, Farrar, G, Fauth, Ac, Fazzini, N, Feldbusch, F, Fenu, F, Fick, B, Figueira, Jm, Filipcic, A, Fitoussi, T, Fodran, T, Fujii, T, Fuster, A, Galea, C, Galelli, C, Garcia, B, Gemmeke, H, Gesualdi, F, Gherghel-Lascu, A, Ghia, Pl, Giaccari, U, Giammarchi, M, Glombitza, J, Gobbi, F, Gollan, F, Golup, G, Berisso, Mg, Vitale, Pfg, Gongora, Jp, Gonzalez, Jm, Gonzalez, N, Goos, I, Gora, D, Gorgi, A, Gottowik, M, Grubb, Td, Guarino, F, Guedes, Gp, Guido, E, Hahn, S, Hamal, P, Hampel, Mr, Hansen, P, Harari, D, Harvey, Vm, Haungs, A, Hebbeker, T, Heck, D, Hojvatd, C, Horandel, Jr, Horvath, P, Hrabovsky, M, Huege, T, Insolia, A, Isar, Pg, Janecek, P, Johnsen, Ja, Jurysek, J, Kaapa, A, Kampert, Kh, Keilhauer, B, Khakurdikar, A, Covilakam, Vvk, Klages, Ho, Kleifges, M, Kleinfeller, J, Knapp, F, Kunka, N, Lago, Bl, Langner, N, de Oliveira, Mal, Lenok, V, Letessier-Selvon, A, Lhenry-Yvon, I, Lo Presti, D, Lopes, L, Lopez, R, Lu, L, Luce, Q, Lundquist, Jp, Payeras, Am, Mancarella, G, Mandat, D, Manning, Bc, Manshan-den, J, Mantschd, P, Marafico, S, Mariani, Fm, Mariazzi, Ag, Maris, Ic, Marsella, G, Martello, D, Martinelli, S, Bravo, Om, Martins, Ma, Mastrodicasa, M, Mathes, Hj, Matthews, J, Matthiae, G, May-otte, E, Mayotte, S, Mazurd, Po, Medina-Tanco, G, Melo, D, Menshikov, A, Michal, S, Micheletti, Mi, Miramonti, L, Mollerach, S, Montanet, F, Morejon, L, Morello, C, Muller, Al, Mulrey, K, Mussa, R, Muzio, M, Namasaka, Wm, Nasr-Esfahani, A, Nellen, L, Nicora, G, Niculescu-Oglinzanu, M, Niechciol, M, Nitz, D, Norwood, I, Nosek, D, Novotny, V, Nozka, L, Nucita, A, Nunez, La, Oliveira, C, Palatka, M, Pallotta, J, Parente, G, Parra, A, Pawlowsky, J, Pech, M, Pelayo, R, Martins, Eep, Armand, Jp, Bertolli, Cp, Perrone, L, Petrera, S, Petrucci, C, Pierog, T, Pimenta, M, Platino, M, Pont, B, Pothast, M, Shavar, Mp, Privitera, P, Prouza, M, Puyleart, A, Querchfeld, S, Rautenberg, J, Ravignani, D, Reininghaus, M, Ridky, J, Riehn, F, Risse, M, Rizi, V, de Carvalho, Wr, Rojo, Jr, Roncoroni, Mj, Rossoni, S, Roth, M, Roulet, E, Rovero, Ac, Ruehl, P, Saftoiu, A, Saharan, M, Salamida, F, Salazar, H, Salina, G, Gomez, Jd, Sanchez, F, Santos, Em, Santos, E, Sarazin, F, Sarmento, R, Sato, R, Sav-ina, P, Schafer, Cm, Scherini, V, Schieler, H, Schimassek, M, Schimp, M, Schluter, F, Schmidt, D, Scholten, O, Schoorlemmer, H, Schovanek, P, Schroder, Fg, Schulte, J, Schulz, T, Sciutto, Sj, Scornavacche, M, Segreto, A, Sehgal, S, Shivashankara, Su, Sigl, G, Silli, G, Sima, O, Smau, R, Smida, R, Sommersh, P, Soriano, Jf, Squartini, R, Stadelmaier, M, Stanca, D, Stanic, S, Stasielak, J, Stassi, P, Straub, M, Streich, A, Suarez-Duran, M, Sudholz, T, Suomijarvi, T, Supanitsky, Ad, Szadkowski, Z, Tapia, A, Taricco, C, Timmermans, C, Tkachenko, O, Tobiska, P, Peixoto, Cjt, Tome, B, Torres, Z, Travaini, A, Travnicek, P, Trimarelli, C, Tueros, M, Ulrich, R, Unger, M, Vaclavek, L, Vacula, M, Galicia, Jfv, Valore, L, Varela, E, Vasquez-Ramirez, A, Veberic, D, Ventura, C, Quispe, Idv, Verzi, V, Vicha, J, Vink, J, Vorobiov, S, Watanabe, C, Watson, Aa, Weindl, A, Wiencke, L, Wilczynski, H, Wittkowski, D, Wundheiler, B, Yushkov, A, Zapparrata, O, Zas, E, Zavrtanik, D, Zavrtanik, M, and Zehrer, L

Subjects
transients, Astronomy, FOS: Physical sciences, General Physics and Astronomy, Photons, ultra-high energies, air showers, Pierre Auger Observatory, upper limits, transients, photons, ultra-high energies, air showers, Pierre Auger Observatory, upper limits, Transients, Air showers, ddc:530, High Energy Physics, High Energy Astrophysical Phenomena (astro-ph.HE), Photons, showers: atmosphere, Ultra-high energies, photon, gravitational radiation, ASTROFÍSICA, UHE [gamma ray], Upper limits, Auger, flux, observatory, neutral particle, gamma ray: UHE, Experimental High Energy Physics, Astrophysics - High Energy Astrophysical Phenomena, atmosphere [showers]
Abstract

The Pierre Auger Observatory, which is the largest air-shower experiment in the world, offers unprecedented exposure to neutral particles at the highest energies. Since the start of data collection more than 18 years ago, various searches for ultra-high-energy (UHE, E & 1017 eV) photons have been performed, either for a diffuse flux of UHE photons, for point sources of UHE photons or for UHE photons associated with transient events such as gravitational wave events. In the present paper, we summarize these searches and review the current results obtained using the wealth of data collected by the Pierre Auger Observatory., Argentina-Comision Nacional de Energia Atomica, ANPCyT, Consejo Nacional de Investigaciones Cientificas y Tecnicas (CONICET), Gobierno de la Provincia de Mendoza, Municipalidad de Malargue, NDM Holdings, Valle Las Lenas, Australian Research Council, Belgium-Fonds de la Recherche Scientifique (FNRS), FWO, Conselho Nacional de Desenvolvimento Cientifico e Tecnologico (CNPQ) Fundacao de Apoio a Pesquisa do Distrito Federal (FAPDF) Financiadora de Inovacao e Pesquisa (Finep) Fundacao Carlos Chagas Filho de Amparo a Pesquisa do Estado do Rio De Janeiro (FAPERJ) Fundacao de Amparo a Pesquisa do Estado de Sao Paulo (FAPESP) 2019/10151-2 2010/07359-6 1999/05404-3, Ministerio da Ciencia, Tecnologia, Inovacoes e Comunicacoes (MCTIC), France-Centre de Calcul IN2P3/CNRS Centre National de la Recherche Scientifique (CNRS) Region Ile-de-France Centre National de la Recherche Scientifique (CNRS) Departement Sciences de l'Univers (SDU-INSU/CNRS) French National Research Agency (ANR) LABEX ANR-10-LABX-63 ANR-11-IDEX-0004-02, Federal Ministry of Education & Research (BMBF) German Research Foundation (DFG) Finanzministerium Baden-Wurttemberg Helmholtz Alliance for Astroparticle Physics (HAP) Helmholtz Association Ministerium fur Kultur und Wissenschaft des Landes Nordrhein-Westfalen Ministerium fur Wissenschaft, Forschung und Kunst des Landes Baden-Wurttemberg, Italy-Istituto Nazionale di Fisica Nucleare (INFN) Istituto Nazionale Astrofisica (INAF), Ministry of Education, Universities and Research (MIUR), CETEMPS Center of Excellence, Ministry of Foreign Affairs and International Cooperation (Italy), Consejo Nacional de Ciencia y Tecnologia (CONACyT) 167733 Universidad Nacional Autonoma de Mexico Programa de Apoyo a Proyectos de Investigacion e Innovacion Tecnologica (PAPIIT) Universidad Nacional Autonoma de Mexico, Netherlands-Ministry of Education, Culture and Science Netherlands Organization for Scientific Research (NWO), SURF Cooperative, Poland-Ministry of Education and Science DIR/WK/2018/11 National Science Centre, Poland 2016/22/M/ST9/00198 2016/23/B/ST9/01635 2020/39/B/ST9/01398, Portuguese Foundation for Science and Technology FEDER funds within Programa Operacional Factores de Competitividade through FundacAo para a Ciencia e a Tecnologia (COMPETE), Romania-Ministry of Research, Innovation and Digitization, CNCS/CCCDI UEFISCDI within the National Nucleus Program PN19150201/16N/2019 PN1906010 PNCDI III TE128 PN-III-P1-1.1-TE-2021-0924/TE57/2022 PED289, Slovenian Research Agency - Slovenia P1-0031 P1-0385 I0-0033 N1-0111, Spanish Government FPA2017-85114-P PID2019-104676GB-C32, Xunta de Galicia, European Commission ED431C 2017/07, Junta de Andalucia SOMM17/6104/UGR P18-FR-4314, European Commission, RENATA Red Nacional Tematica de Astroparticulas FPA2015-68783-REDT, Maria de Maeztu Unit of Excellence MDM-2016-0692, United States Department of Energy (DOE) DE-AC02-07CH11359 DE-FR02-04ER41300 DE-FG02-99ER41107 DE-SC0011689, National Science Foundation (NSF) 0450696, Grainger Foundation, Marie Curie-IRSES/EPLANET, European Particle Physics Latin American Network, UNESCO, MSMT CR LTT18004 LM2015038 LM2018102 CZ.02.1.01/0.0/0.0/16_013/0001402 CZ.02.1.01/0.0/0.0/18_046/0016010 CZ.02.1.01/0.0/0.0/17_049/0008422

Published
2022
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15. Study on multi-ELVES in the Pierre Auger Observatory

Author

Collaboration, Pierre Auger, V��squez Ram��rez, Adriana, Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almela, Alejandro, Alvarez-Muniz, Jaime, Alves Batista, Rafael, Anastasi, Gioacchino Alex, Anchordoqui, Luis A., Andrada, Bel��n, Andringa, Sofia, Aramo, Carla, Ara��jo Ferreira, Paulo Ricardo, Arteaga Velazquez, Juan Carlos, Asorey, Hern��n Gonzalo, Assis, Pedro, Avila, Gualberto, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Barreira Luz, Ricardo Jorge, Becker, Karl-Heinz, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bertou, Xavier, Biermann, Peter L., Binet, Virginia, Bismark, Kathrin, Bister, Teresa, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Bohacova, Martina, Boncioli, Denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, B��sken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Carceller, Juan Miguel, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agust��n, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Concei����o, R��ben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia Dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., Almeida, Rogerio M. De, Jes��s, Joaqu��n De, Jong, Sijbrand J. De, De Mauro, Giuseppe, Mello Neto, Jo��o De, De Mitri, Ivan, Oliveira, Jaime De, Oliveira Franco, Danelise De, Palma, Francesco De, Souza, Vitor De, De Vito, Emanuele, R��o, Mariano Del, Deligny, Olivier, Deval, Luca, Matteo, Armando Di, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, Anjos, Rita Dos, Santos, Diego Dos, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys R., Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipcic, Andrej, Fitoussi, Thomas, Fodran, Tom����, Freire, Mart��n Miguel, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, Garc��a, Beatriz, Garc��a Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, GIACCARI, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, G��mez Berisso, Mariano, G��mez Vitale, Primo F., Gongora, Juan Pablo, Gonz��lez, Juan Manuel, Gonzalez, Nicolas Martin, Goos, Isabel, Gora, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Mat��as Rolf, Hansen, Patricia Mar��a, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, H��randel, J��rg, Horvath, Pavel, Hrabovsky, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Jury��ek, Jakub, K����p��, Alex, Kampert, Karl-Heinz, Karastathis, Nikolaos, Keilhauer, Bianca, Kemp, Julian, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, K��pke, Marcel, Kunka, Norbert, Lago, Bruno L., Lang, Rodrigo Guedes, Langner, Niklas, Leigui De Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, LOPES, Luis, L��pez, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariazzi, Analisa, Maris, Ioana Codrina, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Mart��nez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Merenda, Kevin-Druis, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, Fran��ois, Morello, Carlo, Mostafa, Miguel, M��ller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco Stein, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Nosek, Dalibor, Novotn��, Vladim��r, Nozka, Libor, Nucita, Achille, Nunez, Luis A., Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pedreira, Francisco, P��kala, Jan, Pelayo, Rodrigo, Pe��a-Rodr��guez, Jes��s, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, P��rez Bertolli, Carmina, Perlin, Mat��as, Perrone, Lorenzo, Petrera, Sergio, Pierog, Tanguy, Pimenta, M��rio, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues De Carvalho, Washington, Rodriguez Rojo, Jorge Rub��n, Roncoroni, Mat��as J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Salamida, Francesco, Salazar, Humberto Ibarguen, Salina, Gaetano, Sanabria Gomez, Jose, S��nchez, Federico Andr��s, Santos, Edivaldo Moura, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Sch��fer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schl��ter, Felix, Schmidt, David, Scholten, Olaf, Schovanek, Petr, Schr��der, Frank G., Schr��der, Sonja, Schulte, Josina, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smida, Radomir, Sommers, Paul, Soriano, Jorge F., Souchard, Julien, Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stani��, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Su��rez-Dur��n, Mauricio, Sudholz, Tristan, Suomijarvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tom��, Bernardo, Torr��s, Zo��, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Luk����, Vacula, Martin, Vald��s Galicia, Jose F., Valore, Laura, Varela, Enrique, V��squez-Ram��rez, Adriana, Veberic, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara Keiko Oliveira, Watson, Alan, Weber, Marc, Weindl, Andreas, Wiencke, Lawrence, Wilczy��ski, Henryk, Wirtz, Marcus, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
Physics, Pierre Auger Observatory, Polarity (physics), Astronomy, Astrophysics, Lightning, Lightning strike, Altitude, Experimental High Energy Physics, Light emission, Satellite, High Energy Physics, ddc:620, Ionosphere, Engineering & allied operations
Abstract

Since 2013, the four sites of the Fluorescence Detector (FD) of the Pierre Auger Observatory record ELVES with a dedicated trigger. These UV light emissions are correlated to distant lightning strikes. The length of recorded traces has been increased from 100 $\mu$s (2013), to 300 $\mu$s (2014-16), to 900 $\mu$s (2017-present), to progressively extend the observation of the light emission towards the vertical of the causative lightning and beyond. A large fraction of the observed events shows double ELVES within the time window, and, in some cases, even more complex structures are observed. The nature of the multi-ELVES is not completely understood but may be related to the different types of lightning in which they are originated. For example, it is known that Narrow Bipolar Events can produce double ELVES, and Energetic In-cloud Pulses, occurring between the main negative and upper positive charge layer of clouds, can induce double and even quadruple ELVES in the ionosphere. This report shows the seasonal and daily dependence of the time gap, amplitude ratio, and correlation between the pulse widths of the peaks in a sample of 1000+ multi-ELVES events recorded during the period 2014-20. The events have been compared with data from other satellite and ground-based sensing devices to study the correlation of their properties with lightning observables such as altitude and polarity.

Published
2022
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16. Testing effects of Lorentz invariance violation in the propagation of astroparticles with the Pierre Auger Observatory

Author

The Pierre Auger Collaboration, Abreu, Pedro, Anchordoqui, Luis, dos Anjos, Rita, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Andrada, Belén, Farrar, Glennys, Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipčič, Andrej, Fitoussi, Thomas, Fodran, Tomas, Andringa, Sofia, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, Garcia Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, Aramo, Carla, Giaccari, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, Araújo Ferreira, Paulo Ricardo, González, Nicolás, Goos, Isabel, Góra, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Arnone, Enrico, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, Arteaga Velázquez, Juan Carlos, Hörandel, Jörg, Horvath, Pavel, Hrabovský, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Jurysek, Jakub, Kääpä, Alex, Asorey, Hernán Gonzalo, Kampert, Karl-Heinz, Karastathis, Nikolaos, Keilhauer, Bianca, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Knapp, Felix, Kunka, Norbert, Assis, Pedro, Lago, Bruno L., Lang, Rodrigo Guedes, Langner, Niklas Uwe, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, Lopes, Luis, López, Rebeca, Avila, Gualberto, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Aglietta, Marco, Badescu, Alina Mihaela, Mariani, Federico Maria, Mariazzi, Analisa, Mariş, Ioana, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Bakalova, Alena, Matthiae, Giorgio, Mayotte, Eric, Mayotte, Sonja, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Balaceanu, Alexandru, Mollerach, Silvia, Montanet, François, Morejon, Leonel, Morello, Carlo, Mostafá, Miguel, Müller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco, Barbato, Felicia, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Nicora, Gabriela, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Nosek, Dalibor, Novotny, Vladimir, Nožka, Libor, Bellido, Jose A., Nucita, Achille, Núñez, Luis, Oliveira, Cainã, Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Berat, Corinne, Pękala, Jan, Pelayo, Rodrigo, Peña-Rodriguez, Jesús, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perlin, Matías, Perrone, Lorenzo, Petrera, Sergio, Petrucci, Camilla, Bertaina, Mario Edoardo, Pierog, Tanguy, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Bertou, Xavier, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Bhatta, Gopal, Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Saharan, Mohit, Salamida, Francesco, Salazar, Humberto, Salina, Gaetano, Biermann, Peter, Sanabria Gomez, Jose, Sánchez, Federico, Santos, Edivaldo Moura, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Albury, Justin M., Binet, Virginia, Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schoorlemmer, Harm, Schovánek, Petr, Schröder, Frank G., Bismark, Kathrin, Schulte, Josina, Schulz, Tobias, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Bister, Teresa Karolin, Smau, Raluca, Šmída, Radomir, Sommers, Paul, Soriano, Jorge F., Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Biteau, Jonathan, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijärvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Blazek, Jiri, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Bleve, Carla, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberič, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Blümer, Johannes, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara, Watson, Alan, Weindl, Andreas, Wiencke, Lawrence, Wilczyński, Henryk, Wittkowski, David, Boháčová, Martina, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, Zehrer, Lukas, Boncioli, Denise, Bonifazi, Carla, Allekotte, Ingomar, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Almeida Cheminant, Kevin, Buscemi, Mario, Büsken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Almela, Alejandro, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agustín, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Alvarez-Muñiz, Jaime, Conceição, Ruben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Alves Batista, Rafael, Day, Jarryd A., de Almeida, Rogerio M., de Jesús, Joaquín, de Jong, Sijbrand J., de Mello Neto, J. R. T., De Mitri, Ivan, de Oliveira, Jaime, de Oliveira Franco, Danelise, de Palma, Francesco, de Souza, Vitor, Anastasi, Gioacchino Alex, De Vito, Emanuele, Del Popolo, Antonino, del Río, Mariano, Deligny, Olivier, Deval, Luca, di Matteo, Armando, Dobre, Madalina, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, High Energy Astrophys. & Astropart. Phys (API, FNWI), Physics, Abreu P., Aglietta M., Albury J.M., Allekotte I., Almeida cheminant K., Almela A., Alvarez-Muniz J., Alves batista R., Anastasi G.A., Anchordoqui L., Andrada B., Andringa S., Aramo C., Araujo ferreira P.R., Arnone E., Arteaga velazquez J.C., Asorey H., Assis P., Avila G., Badescu A.M., Bakalova A., Balaceanu A., Barbato F., Bellido J.A., Berat C., Bertaina M.E., Bertou X., Bhatta G., Biermann P.L., Binet V., Bismark K., Bister T., Biteau J., Blazek J., Bleve C., Blumer J., Bohacova M., Boncioli D., Bonifazi C., Bonneau arbeletche L., Borodai N., Botti A.M., Brack J., Bretz T., Brichetto orchera P.G., Briechle F.L., Buchholz P., Bueno A., Buitink S., Buscemi M., Busken M., Caballero-Mora K.S., Caccianiga L., Canfora F., Caracas I., Caruso R., Castellina A., Catalani F., Cataldi G., Cazon L., Cerda M., Chinellato J.A., Chudoba J., Chytka L., Clay R.W., Cobos cerutti A.C., Colalillo R., Coleman A., Coluccia M.R., Concei o R., Condorelli A., Consolati G., Contreras F., Convenga F., Correia dos santos D., Covault C.E., Dasso S., Daumiller K., Dawson B.R., Day J.A., De almeida R.M., De jesus J., De jong S.J., De mello neto J.R.T., De mitri I., De oliveira J., De oliveira franco D., De palma F., De souza V., De vito E., Del popolo A., Del rio M., Deligny O., Deval L., Di matteo A., Dobre M., Dobrigkeit C., D'olivo J.C., Domingues mendes L.M., Dos anjos R.C., Dova M.T., Ebr J., Engel R., Epicoco I., Erdmann M., Escobar C.O., Etchegoyen A., Falcke H., Farmer J., Farrar G., Fauth A.C., Fazzini N., Feldbusch F., Fenu F., Fick B., Figueira J.M., Filipcic A., Fitoussi T., Fodran T., Fujii T., Fuster A., Galea C., Galelli C., Garcia B., Garcia vegas A.L., Gemmeke H., Gesualdi F., Gherghel-Lascu A., Ghia P.L., Giaccari U., Giammarchi M., Glombitza J., Gobbi F., Gollan F., Golup G., Gomez berisso M., Gomez vitale P.F., Gongora J.P., Gonzalez J.M., Gonzalez N., Goos I., Gora D., Gorgi A., Gottowik M., Grubb T.D., Guarino F., Guedes G.P., Guido E., Hahn S., Hamal P., Hampel M.R., Hansen P., Harari D., Harvey V.M., Haungs A., Hebbeker T., Heck D., Hill G.C., Hojvat C., Horandel J.R., Horvath P., Hrabovsky M., Huege T., Insolia A., Isar P.G., Janecek P., Johnsen J.A., Jurysek J., Kp A., Kampert K.H., Karastathis N., Keilhauer B., Khakurdikar A., Kizakke covilakam V.V., Klages H.O., Kleifges M., Kleinfeller J., Knapp F., Kunka N., Lago B.L., Lang R.G., Langner N., Leigui de oliveira M.A., Lenok V., Letessier-Selvon A., Lhenry-Yvon I., Lo presti D., Lopes L., Lopez R., Lu L., Luce Q., Lundquist J.P., Machado payeras A., Mancarella G., Mandat D., Manning B.C., Manshanden J., Mantsch P., Marafico S., Mariani F.M., Mariazzi A.G., Maris I.C., Marsella G., Martello D., Martinelli S., Martinez bravo O., Mastrodicasa M., Mathes H.J., Matthews J., Matthiae G., Mayotte E., Mayotte S., Mazur P.O., Medina-Tanco G., Melo D., Menshikov A., Michal S., Micheletti M.I., Miramonti L., Mollerach S., Montanet F., Morejon L., Morello C., Mostafa M., Muller A.L., Muller M.A., Mulrey K., Mussa R., Muzio M., Namasaka W.M., Nasr-Esfahani A., Nellen L., Nicora G., Niculescu-Oglinzanu M., Niechciol M., Nitz D., Nosek D., Novotny V., Nozka L., Nucita A., Nunez L.A., Oliveira C., Palatka M., Pallotta J., Papenbreer P., Parente G., Parra A., Pawlowsky J., Pech M., Pkala J., Pelayo R., Pena-Rodriguez J., Pereira martins E.E., Perez armand J., Perez bertolli C., Perlin M., Perrone L., Petrera S., Petrucci C., Pierog T., Pimenta M., Pirronello V., Platino M., Pont B., Pothast M., Privitera P., Prouza M., Puyleart A., Querchfeld S., Rautenberg J., Ravignani D., Reininghaus M., Ridky J., Riehn F., Risse M., Rizi V., Rodrigues de carvalho W., Rodriguez rojo J., Roncoroni M.J., Rossoni S., Roth M., Roulet E., Rovero A.C., Ruehl P., Saftoiu A., Saharan M., Salamida F., Salazar H., Salina G., Sanabria gomez J.D., Sanchez F., Santos E.M., Santos E., Sarazin F., Sarmento R., Sarmiento-Cano C., Sato R., Savina P., Sch fer C.M., Scherini V., Schieler H., Schimassek M., Schimp M., Schluter F., Schmidt D., Scholten O., Schoorlemmer H., Schovanek P., Schroder F.G., Schulte J., Schulz T., Sciutto S.J., Scornavacche M., Segreto A., Sehgal S., Shellard R.C., Sigl G., Silli G., Sima O., Smau R., Smida R., Sommers P., Soriano J.F., Squartini R., Stadelmaier M., Stanca D., Stanic S., Stasielak J., Stassi P., Streich A., Suarez-Duran M., Sudholz T., Suomij rvi T., Supanitsky A.D., Szadkowski Z., Tapia A., Taricco C., Timmermans C., Tkachenko O., Tobiska P., Todero peixoto C.J., Tome B., Torr s Z., Travaini A., Travnicek P., Trimarelli C., Tueros M., Ulrich R., Unger M., Vaclavek L., Vacula M., Valdes galicia J.F., Valore L., Varela E., Vasquez-Ramirez A., Veberic D., Ventura C., Vergara quispe I.D., Verzi V., Vicha J., Vink J., Vorobiov S., Wahlberg H., Watanabe C., Watson A.A., Weindl A., Wiencke L., Wilczynski H., Wittkowski D., Wundheiler B., Yushkov A., Zapparrata O., Zas E., Zavrtanik D., Zavrtanik M., Zehrer L., Abreu, P., Aglietta, M., Albury, J. M., Allekotte, I., Almeida Cheminant, K., Almela, A., Alvarez-Mu??iz, J., Alves Batista, R., Anastasi, G. A., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Ara??jo Ferreira, P. R., Arnone, E., Arteaga Vel??zquez, J. C., Asorey, H., Assis, P., Avila, G., Badescu, A. M., Bakalova, A., Balaceanu, A., Barbato, F., Bellido, J. A., Berat, C., Bertaina, M. E., Bertou, X., Bhatta, G., Biermann, P. L., Binet, V., Bismark, K., Bister, T., Biteau, J., Blazek, J., Bleve, C., Bl??mer, J., Boh????ov??, M., Boncioli, D., Bonifazi, C., Bonneau Arbeletche, L., Borodai, N., Botti, A. M., Brack, J., Bretz, T., Brichetto Orchera, P. G., Briechle, F. L., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., B??sken, M., Caballero-Mora, K. S., Caccianiga, L., Canfora, F., Caracas, I., Caruso, R., Castellina, A., Catalani, F., Cataldi, G., Cazon, L., Cerda, M., Chinellato, J. A., Chudoba, J., Chytka, L., Clay, R. W., Cobos Cerutti, A. C., Colalillo, R., Coleman, A., Coluccia, M. R., Concei????o, R., Condorelli, A., Consolati, G., Contreras, F., Convenga, F., Correia dos Santos, D., Covault, C. E., Dasso, S., Daumiller, K., Dawson, B. R., Day, J. A., de Almeida, R. M., de Jes??s, J., de Jong, S. J., de Mello Neto, J. R. T., De Mitri, I., de Oliveira, J., de Oliveira Franco, D., de Palma, F., de Souza, V., De Vito, E., Del Popolo, A., del R??o, M., Deligny, O., Deval, L., di Matteo, A., Dobre, M., Dobrigkeit, C., D'Olivo, J. C., Domingues Mendes, L. M., dos Anjos, R. C., Dova, M. T., Ebr, J., Engel, R., Epicoco, I., Erdmann, M., Escobar, C. O., Etchegoyen, A., Falcke, H., Farmer, J., Farrar, G., Fauth, A. C., Fazzini, N., Feldbusch, F., Fenu, F., Fick, B., Figueira, J. M., Filip??i??, A., Fitoussi, T., Fodran, T., Fujii, T., Fuster, A., Galea, C., Galelli, C., Garc??a, B., Garcia Vegas, A. L., Gemmeke, H., Gesualdi, F., Gherghel-Lascu, A., Ghia, P. L., Giaccari, U., Giammarchi, M., Glombitza, J., Gobbi, F., Gollan, F., Golup, G., G??mez Berisso, M., G??mez Vitale, P. F., Gongora, J. P., Gonz??lez, J. M., Gonz??lez, N., Goos, I., G??ra, D., Gorgi, A., Gottowik, M., Grubb, T. D., Guarino, F., Guedes, G. P., Guido, E., Hahn, S., Hamal, P., Hampel, M. R., Hansen, P., Harari, D., Harvey, V. M., Haungs, A., Hebbeker, T., Heck, D., Hill, G. C., Hojvat, C., H??randel, J. R., Horvath, P., Hrabovsk??, M., Huege, T., Insolia, A., Isar, P. G., Janecek, P., Johnsen, J. A., Jurysek, J., K????p??, A., Kampert, K. H., Karastathis, N., Keilhauer, B., Khakurdikar, A., Kizakke Covilakam, V. V., Klages, H. O., Kleifges, M., Kleinfeller, J., Knapp, F., Kunka, N., Lago, B. L., Lang, R. G., Langner, N., Leigui de Oliveira, M. A., Lenok, V., Letessier-Selvon, A., Lhenry-Yvon, I., Lo Presti, D., Lopes, L., L??pez, R., Lu, L., Luce, Q., Lundquist, J. P., Machado Payeras, A., Mancarella, G., Mandat, D., Manning, B. C., Manshanden, J., Mantsch, P., Marafico, S., Mariani, F. M., Mariazzi, A. G., Mari??, I. C., Marsella, G., Martello, D., Martinelli, S., Mart??nez Bravo, O., Mastrodicasa, M., Mathes, H. J., Matthews, J., Matthiae, G., Mayotte, E., Mayotte, S., Mazur, P. O., Medina-Tanco, G., Melo, D., Menshikov, A., Michal, S., Micheletti, M. I., Miramonti, L., Mollerach, S., Montanet, F., Morejon, L., Morello, C., Mostaf??, M., M??ller, A. L., Muller, M. A., Mulrey, K., Mussa, R., Muzio, M., Namasaka, W. M., Nasr-Esfahani, A., Nellen, L., Nicora, G., Niculescu-Oglinzanu, M., Niechciol, M., Nitz, D., Nosek, D., Novotny, V., No??ka, L., Nucita, A., N????ez, L. A., Oliveira, C., Palatka, M., Pallotta, J., Papenbreer, P., Parente, G., Parra, A., Pawlowsky, J., Pech, M., P??kala, J., Pelayo, R., Pe??a-Rodriguez, J., Pereira Martins, E. E., Perez Armand, J., P??rez Bertolli, C., Perlin, M., Perrone, L., Petrera, S., Petrucci, C., Pierog, T., Pimenta, M., Pirronello, V., Platino, M., Pont, B., Pothast, M., Privitera, P., Prouza, M., Puyleart, A., Querchfeld, S., Rautenberg, J., Ravignani, D., Reininghaus, M., Ridky, J., Riehn, F., Risse, M., Rizi, V., Rodrigues de Carvalho, W., Rodriguez Rojo, J., Roncoroni, M. J., Rossoni, S., Roth, M., Roulet, E., Rovero, A. C., Ruehl, P., Saftoiu, A., Saharan, M., Salamida, F., Salazar, H., Salina, G., Sanabria Gomez, J. D., S??nchez, F., Santos, E. M., Santos, E., Sarazin, F., Sarmento, R., Sarmiento-Cano, C., Sato, R., Savina, P., Sch??fer, C. M., Scherini, V., Schieler, H., Schimassek, M., Schimp, M., Schl??ter, F., Schmidt, D., Scholten, O., Schoorlemmer, H., Schov??nek, P., Schr??der, F. G., Schulte, J., Schulz, T., Sciutto, S. J., Scornavacche, M., Segreto, A., Sehgal, S., Shellard, R. C., Sigl, G., Silli, G., Sima, O., Smau, R., m??da, R., Sommers, P., Soriano, J. F., Squartini, R., Stadelmaier, M., Stanca, D., Stani??, S., Stasielak, J., Stassi, P., Streich, A., Su??rez-Dur??n, M., Sudholz, T., Suomij??rvi, T., Supanitsky, A. D., Szadkowski, Z., Tapia, A., Taricco, C., Timmermans, C., Tkachenko, O., Tobiska, P., Todero Peixoto, C. J., Tom??, B., Torr??s, Z., Travaini, A., Travnicek, P., Trimarelli, C., Tueros, M., Ulrich, R., Unger, M., Vaclavek, L., Vacula, M., Vald??s Galicia, J. F., Valore, L., Varela, E., V??squez-Ram??rez, A., Veberi??, D., Ventura, C., Vergara Quispe, I. D., Verzi, V., Vicha, J., Vink, J., Vorobiov, S., Wahlberg, H., Watanabe, C., Watson, A. A., Weindl, A., Wiencke, L., Wilczy??ski, H., Wittkowski, D., Wundheiler, B., Yushkov, A., Zapparrata, O., Zas, E., Zavrtanik, D., Zavrtanik, M., Zehrer, L., Almeida cheminant, K., Alvarez-Muniz, J., Alves batista, R., Araujo ferreira, P. R., Arteaga velazquez, J. C., Blumer, J., Bohacova, M., Bonneau arbeletche, L., Brichetto orchera, P. G., Busken, M., Cobos cerutti, A. C., Concei o, R., Correia dos santos, D., De almeida, R. M., De jesus, J., De jong, S. J., De mello neto, J. R. T., De mitri, I., De oliveira, J., De oliveira franco, D., De palma, F., De souza, V., De vito, E., Del popolo, A., Del rio, M., Di matteo, A., Domingues mendes, L. M., Dos anjos, R. C., Filipcic, A., Garcia, B., Garcia vegas, A. L., Gomez berisso, M., Gomez vitale, P. F., Gonzalez, J. M., Gonzalez, N., Gora, D., Horandel, J. R., Hrabovsky, M., Kp, A., Kizakke covilakam, V. V., Leigui de oliveira, M. A., Lo presti, D., Lopez, R., Machado payeras, A., Maris, I. C., Martinez bravo, O., Mostafa, M., Muller, A. L., Nozka, L., Nunez, L. A., Pkala, J., Pena-Rodriguez, J., Pereira martins, E. E., Perez armand, J., Perez bertolli, C., Rodrigues de carvalho, W., Rodriguez rojo, J., Sanabria gomez, J. D., Sanchez, F., Sch fer, C. M., Schluter, F., Schovanek, P., Schroder, F. G., Smida, R., Stanic, S., Suarez-Duran, M., Suomij rvi, T., Todero peixoto, C. J., Tome, B., Torr s, Z., Valdes galicia, J. F., Vasquez-Ramirez, A., Veberic, D., Vergara quispe, I. D., and Wilczynski, H.

Subjects
interaction [cosmic radiation], mass spectrum [cosmic radiation], dispersion relation, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, energy spectrum, cosmic ray experiment, FOS: Physical sciences, ultra high energy cosmic rays, cosmic radiation: interaction, invariance: Lorentz, 01 natural sciences, UHE, ultra high energy cosmic ray, energy: threshold, Fundamental physics, gravitational waves, LISA, Tests of general relativity, Cosmic ray experiments, 0103 physical sciences, propagation, ddc:530, physics of the early universe, High Energy Physics, Lorentz [invariance], 010303 astronomy & astrophysics, photon: flux, flux [photon], Lorentz [violation], High Energy Astrophysical Phenomena (astro-ph.HE), astro-ph.HE, energy: high, 010308 nuclear & particles physics, cosmic radiation: mass spectrum, cosmic ray experiments, Settore FIS/01 - Fisica Sperimentale, Astronomy and Astrophysics, ASTROFÍSICA, Ultra-high energy cosmic rays, threshold [energy], violation: Lorentz, Auger, observatory, electromagnetic, kinematics, Experimental High Energy Physics, high [energy], Astrophysics - High Energy Astrophysical Phenomena, Physics of the early universe
Abstract

The successful installation, commissioning, and operation of the Pierre Auger Observatory would not have been possible without the strong commitment and effort from the technical and administrative staff in Malargüe. We are very grateful to the following agencies and organizations for financial support: Argentina — Comisión Nacional de Energía Atómica; Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT); Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET); Gobierno de la Provincia de Mendoza; Municipalidad de Malargüe; NDM Holdings and Valle Las Leñas; in gratitude for their continuing cooperation over land access; Australia — the Australian Research Council; Belgium — Fonds de la Recherche Scientifique (FNRS); Research Foundation Flanders (FWO); Brazil — Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq); Financiadora de Estudos e Projetos (FINEP); Fundação de Amparo à Pesquisa do Estado de Rio de Janeiro (FAPERJ); São Paulo Research Foundation (FAPESP) Grants No. 2019/10151-2, No. 2010/07359-6 and No. 1999/05404-3; Ministério da Ciência, Tecnologia, Inovações e Comunicações (MCTIC); Czech Republic — Grant No. MSMT CR LTT18004, LM2015038, LM2018102, CZ.02.1.01/0.0/0.0/16_013/0001402, CZ.02.1.01/0.0/0.0/18_046/0016010 and CZ.02.1.01/0.0/0.0/17_049/0008422; France — Centre de Calcul IN2P3/CNRS; Centre National de la Recherche Scientifique (CNRS); Conseil Régional Ile-de-France; Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS); Département Sciences de l’Univers (SDU-INSU/CNRS); Institut Lagrange de Paris (ILP) Grant No. LABEX ANR-10-LABX-63 within the Investissements d’Avenir Programme Grant No. ANR-11-IDEX-0004-02; Germany — Bundesministerium für Bildung und Forschung (BMBF); Deutsche Forschungsgemeinschaft (DFG); Finanzministerium Baden-Württemberg; Helmholtz Alliance for Astroparticle Physics (HAP); Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF); Ministerium für Innovation, Wissenschaft und Forschung des Landes Nordrhein-Westfalen; Ministerium für Wissenschaft, Forschung und Kunst des Landes Baden-Württemberg; Italy — Istituto Nazionale di Fisica Nucleare (INFN); Istituto Nazionale di Astrofisica (INAF); Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR); CETEMPS Center of Excellence; Ministero degli Affari Esteri (MAE); México — Consejo Nacional de Ciencia y Tecnología (CONACYT) No. 167733; Universidad Nacional Autónoma de México (UNAM); PAPIIT DGAPA-UNAM; The Netherlands — Ministry of Education, Culture and Science; Netherlands Organisation for Scientific Research (NWO); Dutch national e-infrastructure with the support of SURF Cooperative; Poland — Ministry of Education and Science, grant No. DIR/WK/2018/11; National Science Centre, Grants No. 2016/22/M/ST9/00198, 2016/23/B/ST9/01635, and 2020/39/B/ST9/01398; Portugal — Portuguese national funds and FEDER funds within Programa Operacional Factores de Competitividade through Fundação para a Ciência e a Tecnologia (COMPETE); Romania — Ministry of Research, Innovation and Digitization, CNCS/CCCDI — UEFISCDI, projects PN19150201/16N/2019, PN1906010, TE128 and PED289, within PNCDI III; Slovenia — Slovenian Research Agency, grants P1-0031, P1-0385, I0-0033, N1-0111; Spain — Ministerio de Economía, Industria y Competitividad (FPA2017-85114-P and PID2019-104676GB-C32), Xunta de Galicia (ED431C 2017/07), Junta de Andalucía (SOMM17/6104/UGR, P18-FR-4314) Feder Funds, RENATA Red Nacional Temática de Astropartículas (FPA2015-68783-REDT) and María de Maeztu Unit of Excellence (MDM-2016-0692); U.S.A. — Department of Energy, Contracts No. DE-AC02-07CH11359, No. DE-FR02-04ER41300, No. DE-FG02-99ER41107 and No. DE-SC0011689; National Science Foundation, Grant No. 0450696; The Grainger Foundation; Marie Curie-IRSES/EPLANET; European Particle Physics Latin American Network; and UNESCO., Lorentz invariance violation (LIV) is often described by dispersion relations of the form E i2 = m i2+p i2+δi,n E 2+n with delta different based on particle type i, with energy E, momentum p and rest mass m. Kinematics and energy thresholds of interactions are modified once the LIV terms become comparable to the squared masses of the particles involved. Thus, the strongest constraints on the LIV coefficients δi,n tend to come from the highest energies. At sufficiently high energies, photons produced by cosmic ray interactions as they propagate through the Universe could be subluminal and unattenuated over cosmological distances. Cosmic ray interactions can also be modified and lead to detectable fingerprints in the energy spectrum and mass composition observed on Earth. The data collected at the Pierre Auger Observatory are therefore possibly sensitive to both the electromagnetic and hadronic sectors of LIV. In this article, we explore these two sectors by comparing the energy spectrum and the composition of cosmic rays and the upper limits on the photon flux from the Pierre Auger Observatory with simulations including LIV. Constraints on LIV parameters depend strongly on the mass composition of cosmic rays at the highest energies. For the electromagnetic sector, while no constraints can be obtained in the absence of protons beyond 1019 eV, we obtain δγ,0 > -10-21, δγ,1 > -10-40 eV-1 and δγ,2 > -10-58 eV-2 in the case of a subdominant proton component up to 1020 eV. For the hadronic sector, we study the best description of the data as a function of LIV coefficients and we derive constraints in the hadronic sector such as δhad,0 < 10-19, δhad,1 < 10-38 eV-1 and δhad,2 < 10-57 eV-2 at 5σ CL., Argentina — Comisión Nacional de Energía Atómica, Agencia Nacional de Promoción Científica y Tecnológica (ANPCyT), Consejo Nacional de Investigaciones Científicas y Técnicas (CONICET), Gobierno de la Provincia de Mendoza, Municipalidad de Malargüe, NDM Holdings and Valle Las Leñas, Australia — the Australian Research Council, Belgium — Fonds de la Recherche Scientifique (FNRS), Research Foundation Flanders (FWO), Brazil — Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq), Financiadora de Estudos e Projetos (FINEP), Fundação de Amparo à Pesquisa do Estado de Rio de Janeiro (FAPERJ), São Paulo Research Foundation (FAPESP) Grants No. 2019/10151-2, No. 2010/07359-6 and No. 1999/05404-3, Ministério da Ciência, Tecnologia, Inovações e Comunicações (MCTIC), Czech Republic — Grant No. MSMT CR LTT18004, LM2015038, LM2018102, CZ.02.1.01/0.0/0.0/16_013/0001402, CZ.02.1.01/0.0/0.0/18_046/0016010 and CZ.02.1.01/0.0/0.0/17_049/0008422, France — Centre de Calcul IN2P3/CNRS, Centre National de la Recherche Scientifique (CNRS), Conseil Régional Ile-de-France; Département Physique Nucléaire et Corpusculaire (PNC-IN2P3/CNRS), Département Sciences de l’Univers (SDU-INSU/CNRS), Institut Lagrange de Paris (ILP) Grant No. LABEX ANR-10-LABX-63- Investissements d’Avenir Programme Grant No. ANR-11-IDEX-0004-02, Germany — Bundesministerium für Bildung und Forschung (BMBF)Germany, Deutsche Forschungsgemeinschaft (DFG), Finanzministerium Baden-Württemberg, Helmholtz Alliance for Astroparticle Physics (HAP), Helmholtz-Gemeinschaft Deutscher Forschungszentren (HGF), Ministerium für Innovation, Wissenschaft und Forschung des Landes Nordrhein-Westfalen, Ministerium für Wissenschaft, Forschung und Kunst des Landes Baden-Württemberg, Italy — Istituto Nazionale di Fisica Nucleare (INFN), Istituto Nazionale di Astrofisica (INAF), Ministero dell’Istruzione, dell’Università e della Ricerca (MIUR), CETEMPS Center of Excellence, Ministero degli Affari Esteri (MAE), México — Consejo Nacional de Ciencia y Tecnología (CONACYT) No. 167733, Universidad Nacional Autónoma de México (UNAM), PAPIIT DGAPA-UNAM, The Netherlands — Ministry of Education, Culture and Science, Netherlands Organisation for Scientific Research (NWO), Dutch national e-infrastructure with the support of SURF Cooperative; Poland — Ministry of Education and Science, grant No. DIR/WK/2018/11, National Science Centre, Grants No. 2016/22/M/ST9/00198, 2016/23/B/ST9/01635, and 2020/39/B/ST9/01398, Portugal — Portuguese national funds and FEDER funds within Programa Operacional Factores de Competitividade through Fundação para a Ciência e a Tecnologia (COMPETE), Romania — Ministry of Research, Innovation and Digitization, CNCS/CCCDI — UEFISCDI, projects PN19150201/16N/2019, PN1906010, TE128 and PED289, within PNCDI III, Slovenia — Slovenian Research Agency, grants P1-0031, P1-0385, I0-0033, N1-0111, Spain — Ministerio de Economía, Industria y Competitividad (FPA2017-85114-P and PID2019-104676GB-C32), Xunta de Galicia (ED431C 2017/07), Junta de Andalucía (SOMM17/6104/UGR, P18-FR-4314), Feder Funds, RENATA Red Nacional Temática de Astropartículas (FPA2015-68783-REDT), María de Maeztu Unit of Excellence (MDM-2016-0692), U.S.A. — Department of Energy, Contracts No. DE-AC02-07CH11359, No. DE-FR02-04ER41300, No. DE-FG02-99ER41107 and No. DE-SC0011689, National Science Foundation, Grant No. 0450696, The Grainger Foundation, Marie Curie-IRSES/EPLANET, European Particle Physics Latin American Network, UNESCO

Published
2022
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17. Testing effects of Lorentz invariance violation in the propagation of astroparticles with the Pierre Auger Observatory

Author

Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almeida Cheminant, Kevin, Almela, Alejandro, Alvarez-Mu��iz, Jaime, Alves Batista, Rafael, Anastasi, Gioacchino Alex, Anchordoqui, Luis, Andrada, Bel��n, Andringa, Sofia, Aramo, Carla, Ara��jo Ferreira, Paulo Ricardo, Arnone, Enrico, Arteaga Vel��zquez, Juan Carlos, Asorey, Hern��n Gonzalo, Assis, Pedro, Avila, Gualberto, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bertou, Xavier, Bhatta, Gopal, Biermann, Peter, Binet, Virginia, Bismark, Kathrin, Bister, Teresa Karolin, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Bl��mer, Johannes, Boh����ov��, Martina, Boncioli, Denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, B��sken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agust��n, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Concei����o, Ruben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., de Almeida, Rogerio M., de Jes��s, Joaqu��n, de Jong, Sijbrand J., de Mello Neto, J. R. T., De Mitri, Ivan, de Oliveira, Jaime, de Oliveira Franco, Danelise, de Palma, Francesco, de Souza, Vitor, De Vito, Emanuele, Del Popolo, Antonino, del R��o, Mariano, Deligny, Olivier, Deval, Luca, di Matteo, Armando, Dobre, Madalina, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, dos Anjos, Rita, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys, Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filip��i��, Andrej, Fitoussi, Thomas, Fodran, Tomas, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, Garc��a, Beatriz, Garcia Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, Giaccari, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, G��mez Berisso, Mariano, G��mez Vitale, Primo F., Gongora, Juan Pablo, Gonz��lez, Juan Manuel, Gonz��lez, Nicol��s, Goos, Isabel, G��ra, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Mat��as Rolf, Hansen, Patricia, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, H��randel, J��rg, Horvath, Pavel, Hrabovsk��, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Jurysek, Jakub, K����p��, Alex, Kampert, Karl-Heinz, Karastathis, Nikolaos, Keilhauer, Bianca, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Knapp, Felix, Kunka, Norbert, Lago, Bruno L., Lang, Rodrigo Guedes, Langner, Niklas Uwe, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, Lopes, Luis, L��pez, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariani, Federico Maria, Mariazzi, Analisa, Mari��, Ioana, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Mart��nez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mayotte, Sonja, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, Fran��ois, Morejon, Leonel, Morello, Carlo, Mostaf��, Miguel, M��ller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Nicora, Gabriela, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Nosek, Dalibor, Novotny, Vladimir, No��ka, Libor, Nucita, Achille, N����ez, Luis, Oliveira, Cain��, Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, P��kala, Jan, Pelayo, Rodrigo, Pe��a-Rodriguez, Jes��s, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, P��rez Bertolli, Carmina, Perlin, Mat��as, Perrone, Lorenzo, Petrera, Sergio, Petrucci, Camilla, Pierog, Tanguy, Pimenta, M��rio, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rub��n, Roncoroni, Mat��as J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Saharan, Mohit, Salamida, Francesco, Salazar, Humberto, Salina, Gaetano, Sanabria Gomez, Jose, S��nchez, Federico, Santos, Edivaldo Moura, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Sch��fer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schl��ter, Felix, Schmidt, David, Scholten, Olaf, Schoorlemmer, Harm, Schov��nek, Petr, Schr��der, Frank G., Schulte, Josina, Schulz, Tobias, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smau, Raluca, ��m��da, Radomir, Sommers, Paul, Soriano, Jorge F., Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stani��, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Su��rez-Dur��n, Mauricio, Sudholz, Tristan, Suomij��rvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tom��, Bernardo, Torr��s, Zo��, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Luk����, Vacula, Martin, Vald��s Galicia, Jose F., Valore, Laura, Varela, Enrique, V��squez-Ram��rez, Adriana, Veberi��, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara, Watson, Alan, Weindl, Andreas, Wiencke, Lawrence, Wilczy��ski, Henryk, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Abstract

26 Seiten (2022).

Published
2022
Full Text
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18. Performance of the 433 m surface array of the Pierre Auger Observatory

Author

Pierre Auger Collaboration, Silli, Gaia, Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almela, Alejandro, Alvarez-Muniz, Jaime, Alves Batista, Rafael, Anastasi, Gioacchino Alex, Anchordoqui, Luis A., Andrada, Belén, Andringa, Sofia, Aramo, Carla, Araújo Ferreira, Paulo Ricardo, Arteaga Velazquez, Juan Carlos, Asorey, Hernán Gonzalo, Assis, Pedro, Avila, Gualberto, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Barreira Luz, Ricardo Jorge, Becker, Karl-Heinz, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bertou, Xavier, Biermann, Peter L., Binet, Virginia, Bismark, Kathrin, Bister, Terasa, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Bohacova, Martina, Boncioli, Denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, Büsken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Carceller, Juan Miguel, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agustín, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Conceição, Rúben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., Almeida, Rogerio M. de, Jesús, Joaquín de, Jong, Sijbrand J. de, De Mauro, Giuseppe, Mello Neto, João de, De Mitri, Ivan, Oliveira, Jaime de, Oliveira Franco, Danelise de, Palma, Francesco de, Souza, Vitor de, De Vito, Emanuele, Río, Mariano del, Deligny, Olivier, Deval, Luca, Matteo, Armando di, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, Anjos, Rita dos, Santos, Diego dos, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys R., Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipcic, Andrej, Fitoussi, Thomas, Fodran, Tomáš, Freire, Martín Miguel, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, García Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, Giaccari, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, Gonzalez, Nicolas Martin, Goos, Isabel, Gora, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia María, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, Hörandel, Jörg, Horvath, Pavel, Hrabovsky, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Juryšek, Jakub, Kääpä, Alex, Kampert, Karl-Heinz, Karastathis, Nikolaos, Keilhauer, Bianca, Kemp, Julian, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Köpke, Marcel, Kunka, Norbert, Lago, Bruno L., Lang, Rodrigo Guedes, Langner, Niklas, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, LOPES, Luis, López, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariazzi, Analisa, Maris, Ioana Codrina, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Merenda, Kevin-Druis, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, François, Morello, Carlo, Mostafa, Miguel, Müller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco Stein, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Nosek, Dalibor, Novotný, Vladimír, Nozka, Libor, Nucita, Achille, Nunez, Luis A., Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pedreira, Francisco, Pękala, Jan, Pelayo, Rodrigo, Peña-Rodríguez, Jesús, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perlin, Matías, Perrone, Lorenzo, Petrera, Sergio, Pierog, Tanguy, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saffi, Steven J., Saftoiu, Alexandra, Salamida, Francesco, Salazar, Humberto Ibarguen, Salina, Gaetano, Sanabria Gomez, Jose, Sánchez, Federico Andrés, Santos, Edivaldo Moura, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schovanek, Petr, Schröder, Frank G., Schröder, Sonja, Schulte, Josina, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Sima, Octavian, Smida, Radomir, Sommers, Paul, Soriano, Jorge F., Souchard, Julien, Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijarvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberic, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe Oliveira, Clara Keiko, Watson, Alan, Weber, Marc, Weindl, Andreas, Wiencke, Lawrence, Wilczyński, Henryk, Wirtz, Marcus, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
Physics, Pierre Auger Observatory, Photon, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Galactic Center, Astrophysics::Instrumentation and Methods for Astrophysics, Flux, Computational physics, Auger, Distribution function, Observatory, Experimental High Energy Physics, ddc:530, High Energy Physics, Energy (signal processing)
Abstract

The Pierre Auger Observatory, located in western Argentina, is the world's largest cosmic-ray observatory. While it was originally built to study the cosmic-ray flux above $10^{18.5}~$eV, several enhancements have reduced this energy threshold. One such enhancement is a surface array composed of a triangular grid of $19$ water-Cherenkov detectors separated by $433~$m (SD-433) to explore the energies down to about $10^{16}~$eV. We are developing two research lines employing the SD-433. Firstly, we will measure the energy spectrum in a region where previous experiments have shown evidence of the second knee. Secondly, we will search for ultra-high energy photons to study PeV cosmic-ray sources residing in the Galactic center. In this work, we introduce the SD-433 and we show that it is fully efficient above $5\times 10^{16}~$eV for hadronic primaries with $\theta < 45^\circ$. Using seven years of data, we present the parametrization of the lateral distribution function of measured signals. Finally, we show that an angular resolution of $1.8^\circ$ ($0.5^\circ$) can be attained at the lowest (highest) primary energies. Our study lays the goundmark for measurements in the energy range above $10^{16}~$eV by utilizing the SD-433 and thus expanding the scientific output of the Auger surface detector.

Published
2021

19. UHECR arrival directions in the latest data from the original Auger and TA surface detectors and nearby galaxies

Author

di Matteo, Armando, primary, Anchordoqui, Luis A., additional, Bister, Teresa, additional, Biteau, Jonathan, additional, Caccianiga, Lorenzo, additional, de Almeida, Rogerio M., additional, Deligny, Olivier, additional, GIACCARI, Ugo, additional, Harari, Diego, additional, Kim, Jihyun, additional, Kuznetsov, Mikhail, additional, Maris, Ioana Codrina, additional, Rubtsov, Grigory, additional, Tinyakov, Petr, additional, Troitsky, Sergey, additional, Urban, Federico, additional, Abreu, Pedro, additional, Aglietta, Marco, additional, Albury, Justin M., additional, Allekotte, Ingomar, additional, Almela, Alejandro, additional, Alvarez-Muniz, Jaime, additional, Alves Batista, Rafael, additional, Anastasi, Gioacchino Alex, additional, Andrada, Belén, additional, Andringa, Sofia, additional, Aramo, Carla, additional, Araújo Ferreira, Paulo Ricardo, additional, Arteaga Velazquez, Juan Carlos, additional, Asorey, Hernán Gonzalo, additional, Assis, Pedro, additional, Avila, Gualberto, additional, Badescu, Alina Mihaela, additional, Bakalova, Alena, additional, Balaceanu, Alexandru, additional, Barbato, Felicia, additional, Barreira Luz, Ricardo Jorge, additional, Becker, Karl-Heinz, additional, Bellido, Jose A., additional, Berat, Corinne, additional, Bertaina, Mario Edoardo, additional, Bertou, Xavier, additional, Biermann, Peter L., additional, Binet, Virginia, additional, Bismark, Kathrin, additional, Blazek, Jiri, additional, Bleve, Carla, additional, Bohacova, Martina, additional, Boncioli, Denise, additional, Bonifazi, Carla, additional, Bonneau Arbeletche, Luan, additional, Borodai, Nataliia, additional, Botti, Ana Martina, additional, Brack, Jeffrey, additional, Bretz, Thomas, additional, Brichetto Orchera, P. Gabriel, additional, Briechle, Florian Lukas, additional, Buchholz, Peter, additional, Bueno, Antonio, additional, Buitink, Stijn, additional, Buscemi, Mario, additional, Büsken, Max, additional, Caballero-Mora, Karen S., additional, Canfora, Fabrizia, additional, Caracas, Ioana, additional, Carceller, Juan Miguel, additional, Caruso, Rossella, additional, Castellina, Antonella, additional, Catalani, Fernando, additional, Cataldi, Gabriella, additional, Cazon, Lorenzo, additional, Cerda, Marcos, additional, Chinellato, Jose Augusto, additional, Chudoba, Jiří, additional, Chytka, Ladislav, additional, Clay, Roger W, additional, Cobos Cerutti, Agustín, additional, Colalillo, Roberta, additional, Coleman, Alan, additional, Coluccia, Maria Rita, additional, Conceição, Rúben, additional, Condorelli, Antonio, additional, Consolati, Giovanni, additional, Contreras, Fernando, additional, Convenga, Fabio, additional, Correia dos Santos, Diego, additional, Covault, Corbin, additional, Dasso, Sergio, additional, Daumiller, Kai, additional, Dawson, Bruce R., additional, Day, Jarryd A., additional, de Jesús, Joaquín, additional, de Jong, Sijbrand J., additional, De Mauro, Giuseppe, additional, de Mello Neto, João, additional, De Mitri, Ivan, additional, de Oliveira, Jaime, additional, de Oliveira Franco, Danelise, additional, de Palma, Francesco, additional, de Souza, Vitor, additional, De Vito, Emanuele, additional, del Río, Mariano, additional, Deval, Luca, additional, Dobrigkeit, Carola, additional, D'Olivo, Juan Carlos, additional, Domingues Mendes, Luis Miguel, additional, dos Anjos, Rita Cassia, additional, dos Santos, Diego, additional, Dova, Maria Teresa, additional, Ebr, Jan, additional, Engel, Ralph, additional, Epicoco, Italo, additional, Erdmann, Martin, additional, Escobar, Carlos O., additional, Etchegoyen, Alberto, additional, Falcke, Heino, additional, Farmer, John, additional, Farrar, Glennys R., additional, Fauth, Anderson, additional, Fazzini, Norberto, additional, Feldbusch, Fridtjof, additional, Fenu, Francesco, additional, Fick, Brian, additional, Figueira, Juan Manuel, additional, Filipcic, Andrej, additional, Fitoussi, Thomas, additional, Fodran, Tomáš, additional, Freire, Martín Miguel, additional, Fuster, Alan, additional, Galea, Cristina, additional, Galelli, Claudio, additional, García, Beatriz, additional, García Vegas, Adrianna Luz, additional, Gemmeke, Hartmut, additional, Gesualdi, Flavia, additional, Gherghel-Lascu, Alexandru, additional, Ghia, Piera Luisa, additional, Giammarchi, Marco, additional, Glombitza, Jonas, additional, Gobbi, Fabian, additional, Gollan, Fernando, additional, Golup, Geraldina, additional, Gómez Berisso, Mariano, additional, Gómez Vitale, Primo F., additional, Gongora, Juan Pablo, additional, González, Juan Manuel, additional, Gonzalez, Nicolas Martin, additional, Goos, Isabel, additional, Gora, Dariusz, additional, Gorgi, Alessio, additional, Gottowik, Marvin, additional, Grubb, Trent D., additional, Guarino, Fausto, additional, Guedes, Germano, additional, Guido, Eleonora, additional, Hahn, Steffen, additional, Hamal, Petr, additional, Hampel, Matías Rolf, additional, Hansen, Patricia María, additional, Harvey, Violet M., additional, Haungs, Andreas, additional, Hebbeker, Thomas, additional, Heck, Dieter, additional, Hill, Gary C., additional, Hojvat, Carlos, additional, Hörandel, Jörg R., additional, Horvath, Pavel, additional, Hrabovsky, Miroslav, additional, Huege, Tim, additional, Insolia, Antonio, additional, Isar, Paula Gina, additional, Janecek, Petr, additional, Johnsen, Jeffrey A., additional, Jurysek, Jakub, additional, Kääpä, Alex, additional, Kampert, Karl-Heinz, additional, Karastathis, Nikolaos, additional, Keilhauer, Bianca, additional, Kemp, Julian, additional, Khakurdikar, Abha, additional, Kizakke Covilakam, Varada Varma, additional, Klages, Hans, additional, Kleifges, Matthias, additional, Kleinfeller, Jonny, additional, Köpke, Marcel, additional, Kunka, Norbert, additional, Lago, Bruno L., additional, Lang, Rodrigo Guedes, additional, Langner, Niklas, additional, Leigui de Oliveira, Marcelo Augusto, additional, Lenok, Vladimir, additional, Letessier-Selvon, Antoine, additional, Lhenry-Yvon, Isabelle, additional, Lo Presti, Domenico, additional, LOPES, Luis, additional, López, Rebeca, additional, Lu, Lu, additional, Luce, Quentin, additional, Machado Payeras, Allan, additional, Mancarella, Giovanni, additional, Mandat, Dusan, additional, Manning, Bradley C., additional, Manshanden, Julien, additional, Mantsch, Paul, additional, Marafico, Sullivan, additional, Mariazzi, Analisa, additional, Marsella, Giovanni, additional, Martello, Daniele, additional, Martinelli, Sara, additional, Martínez Bravo, Oscar, additional, Mastrodicasa, Massimo, additional, Mathes, Hermann-Josef, additional, Matthews, James, additional, Matthiae, Giorgio, additional, Mayotte, Eric, additional, Mazur, Peter, additional, Medina-Tanco, Gustavo, additional, Melo, Diego, additional, Menshikov, Alexander, additional, Merenda, Kevin-Druis, additional, Michal, Stanislav, additional, Micheletti, Maria Isabel, additional, Miramonti, Lino, additional, Mollerach, Silvia, additional, Montanet, François, additional, Morello, Carlo, additional, Mostafa, Miguel, additional, Müller, Ana L., additional, Muller, Marcio Aparecido, additional, Mulrey, Katharine, additional, Mussa, Roberto, additional, Muzio, Marco Stein, additional, Namasaka, Wilson M., additional, Nasr-Esfahani, Alina, additional, Nellen, Lukas, additional, Niculescu-Oglinzanu, Mihai, additional, Niechciol, Marcus, additional, Nitz, Dave, additional, Nosek, Dalibor, additional, Novotný, Vladimír, additional, Nozka, Libor, additional, Nucita, Achille, additional, Nunez, Luis A., additional, Palatka, Miroslav, additional, Pallotta, Juan, additional, Papenbreer, Philipp, additional, Parente, Gonzalo, additional, Parra, Alejandra, additional, Pawlowsky, Jannis, additional, Pech, Miroslav, additional, Pedreira, Francisco, additional, Pękala, Jan, additional, Pelayo, Rodrigo, additional, Peña-Rodríguez, Jesús, additional, Pereira Martins, Edyvania Emily, additional, Perez Armand, Johnnier, additional, Pérez Bertolli, Carmina, additional, Perlin, Matías, additional, Perrone, Lorenzo, additional, Petrera, Sergio, additional, Pierog, Tanguy, additional, Pimenta, Mário, additional, Pirronello, Valerio, additional, Platino, Manuel, additional, Pont, Bjarni, additional, Pothast, Mart, additional, Privitera, Paolo, additional, Prouza, Michael, additional, Puyleart, Andrew, additional, Querchfeld, Sven, additional, Rautenberg, Julian, additional, Ravignani, Diego, additional, Reininghaus, Maximilian, additional, Ridky, Jan, additional, Riehn, Felix, additional, Risse, Markus, additional, Rizi, Vincenzo, additional, Rodrigues de Carvalho, Washington, additional, Rodriguez Rojo, Jorge Rubén, additional, Roncoroni, Matías J., additional, Rossoni, Simone, additional, Roth, Markus, additional, Roulet, Esteban, additional, Rovero, Adrian, additional, Ruehl, Philip, additional, Saftoiu, Alexandra, additional, Salamida, Francesco, additional, Salazar, Humberto Ibarguen, additional, Salina, Gaetano, additional, Sanabria Gomez, Jose, additional, Sánchez, Federico Andrés, additional, Santos, Edivaldo Moura, additional, Santos, Eva, additional, Sarazin, Fred, additional, Sarmento, Raul, additional, Sarmiento-Cano, Christian, additional, Sato, Ricardo, additional, Savina, Pierpaolo, additional, Schäfer, Christoph M., additional, Scherini, Viviana, additional, Schieler, Harald, additional, Schimassek, Martin, additional, Schimp, Michael, additional, Schlüter, Felix, additional, Schmidt, David, additional, Scholten, Olaf, additional, Schovanek, Petr, additional, Schröder, Frank G., additional, Schröder, Sonja, additional, Schulte, Josina, additional, Sciutto, Sergio, additional, Scornavacche, Marina, additional, Segreto, Alberto, additional, Sehgal, Srijan, additional, Shellard, Ronald C., additional, Sigl, Guenter, additional, Silli, Gaia, additional, Sima, Octavian, additional, Smida, Radomir, additional, Sommers, Paul, additional, Soriano, Jorge F., additional, Souchard, Julien, additional, Squartini, Ruben, additional, Stadelmaier, Maximilian, additional, Stanca, Denis, additional, Stanič, Samo, additional, Stasielak, Jaroslaw, additional, Stassi, Patrick, additional, Streich, Alexander, additional, Suárez-Durán, Mauricio, additional, Sudholz, Tristan, additional, Suomijarvi, Tiina, additional, Supanitsky, A. Daniel, additional, Szadkowski, Zbigniew, additional, Tapia, Alex, additional, Taricco, Carla, additional, Timmermans, Charles, additional, Tkachenko, Olena, additional, Tobiska, Petr, additional, Todero Peixoto, Carlos J., additional, Tomé, Bernardo, additional, Torrès, Zoé, additional, Travaini, Andres, additional, Travnicek, Petr, additional, Trimarelli, Caterina, additional, Tueros, Matías, additional, Ulrich, Ralf, additional, Unger, Michael, additional, Vaclavek, Lukáš, additional, Vacula, Martin, additional, Valdés Galicia, Jose F., additional, Valore, Laura, additional, Varela, Enrique, additional, Vásquez-Ramírez, Adriana, additional, Veberic, Darko, additional, Ventura, Cynthia, additional, Vergara Quispe, Indira D., additional, Verzi, Valerio, additional, Vicha, Jakub, additional, Vink, Jacco, additional, Vorobiov, Serguei, additional, Wahlberg, Hernan, additional, Watanabe, Clara Keiko Oliveira, additional, Watson, Alan, additional, Weber, Marc, additional, Weindl, Andreas, additional, Wiencke, Lawrence, additional, Wilczyński, Henryk, additional, Wirtz, Marcus, additional, Wittkowski, David, additional, Wundheiler, Brian, additional, Yushkov, Alexey, additional, Zapparrata, Orazio, additional, Zas, Enrique, additional, Zavrtanik, Danilo, additional, Zavrtanik, Marko, additional, Zehrer, Lukas, additional, Abbasi, Rasha, additional, Abu-Zayyad, Tareq, additional, Allen, Monica, additional, Arai, Yuto, additional, Arimura, Ryuhei, additional, Barcikowski, Elliott, additional, Belz, John, additional, Bergman, Douglas, additional, Blake, Samuel, additional, Cady, Robert, additional, Cheon, ByongGu, additional, Chiba, Jyunsei, additional, Chikawa, Michiyuki, additional, Fujii, Toshihiro, additional, Fujisue, Kozo, additional, Fujita, Keitaro, additional, Fujiwara, Ryota, additional, Fukushima, Masaki, additional, Fukushima, Ryota, additional, Furlich, Greg, additional, Gonzalez, Ricardo, additional, Hanlon, William, additional, Hayashi, Motoki, additional, Hayashida, Naoaki, additional, Hibino, Kinya, additional, Higuchi, Ryo, additional, Honda, Ken, additional, Ikeda, Daisuke, additional, Inadomi, Taichi, additional, Inoue, Naoya, additional, Ishii, Takaaki, additional, Ito, Hirotaka, additional, Ivanov, Dmitri, additional, Iwakura, Hirokazu, additional, Iwasaki, Aoi, additional, Jeong, Hyoming, additional, Jeong, Soomin, additional, Jui, Charlie, additional, Kadota, Kenichi, additional, Kakimoto, Fumio, additional, Kalashev, Oleg, additional, Kasahara, Katsuaki, additional, Kasami, Saori, additional, Kawai, Hideyuki, additional, Kawakami, Saburo, additional, Kawana, Shingo, additional, Kawata, Katsumasa, additional, Kharuk, Ivan, additional, Kido, Eiji, additional, Kim, HangBae, additional, Kim, Jihee, additional, Kim, Min Hyo, additional, Kim, Sang Woo, additional, Kimura, Yusuke, additional, Kishigami, Shoichi, additional, Kubota, Yuto, additional, Kurisu, Shinnosuke, additional, Kuzmin, Vladim, additional, Kwon, Youngjoon, additional, Lee, Kwangho, additional, Lubsandorzhiev, BayarJon Paul, additional, Lundquist, Jon Paul, additional, Machida, Kazuhiro, additional, Matsumiya, Hiroyuki, additional, Matsuyama, Toshio, additional, Matthews, John, additional, Mayta, Rosa, additional, Minamino, Mayuko, additional, Mukai, Keijiro, additional, Myers, Isaac, additional, Nagataki, Shigehiro, additional, Nakai, Kei, additional, Nakamura, Ryo, additional, Nakamura, Toru, additional, Nakamura, Tomoyuki, additional, Nakamura, Yuya, additional, Nakazawa, Arata, additional, Nishio, Eiji, additional, Nonaka, Toshiyuki, additional, Oda, Hiroyuki, additional, Ogio, Shoichi, additional, Ohnishi, Munehiro, additional, Ohoka, Hideyuki, additional, Oku, Yuya, additional, Okuda, Takeshi, additional, Omura, Yugo, additional, Ono, Masaomi, additional, Onogi, Ryota, additional, Oshima, Akitoshi, additional, OZAWA, Shunsuke, additional, Park, Il Hung, additional, Potts, Matt, additional, Pshirkov, Maxim, additional, Remington, Jackson, additional, Rodriguez, Doug, additional, Ryu, Dongsu, additional, Sagawa, Hiroyuki, additional, Sahara, Ryosuke, additional, Saito, Yasunori, additional, Sakaki, Naoto, additional, Sako, Takashi, additional, Sakurai, Nobuyuki, additional, Sano, Kengo, additional, Sato, Koki, additional, Seki, Terutsugu, additional, Sekino, Koichi, additional, Shah, Priti, additional, Shibasaki, Yuma, additional, Shibata, Fumiya, additional, Shibata, Norimichi, additional, Shibata, Tatsunobu, additional, Shimodaira, Hideaki, additional, Shin, Bokkyun, additional, Shin, Heungsu, additional, Shinto, Daiki, additional, Smith, Jeremy, additional, Sokolsky, Pierre, additional, Sone, Naohiro, additional, Stokes, Ben, additional, Stroman, Tom, additional, Takagi, Yoshinori, additional, Takahashi, Yuichi, additional, Takamura, Mai, additional, Takeda, Masahiro, additional, Takeishi, Ryuji, additional, Taketa, Akimichi, additional, Takita, Masato, additional, Tameda, Yuichiro, additional, Tanaka, Hideki, additional, Tanaka, Koichi, additional, Tanaka, Manobu, additional, Tanoue, Yuta, additional, Thomas, Stanton, additional, Thomson, Gordon, additional, Tkachev, Igor, additional, Tokuno, Hisono, additional, Tomida, Taka, additional, Tsuda, Ryosuke, additional, Tsunesada, Yoshiki, additional, Uchihori, Yukio, additional, Udo, Shigeharu, additional, Uehama, Takafumi, additional, Wong, Tiffany, additional, Yada, Kohei, additional, Yamamoto, Mashu, additional, Yamazaki, Katsuya, additional, Yang, Jongmann, additional, Yashiro, Kenta, additional, Yoshida, Fugo, additional, Yoshioka, Tsubasa, additional, Zhezher, Yana, additional, and Zundel, Zach, additional

Published
2021
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20. First results from the AugerPrime Radio Detector

Author

Collaboration, Pierre Auger, Fodran, Tomáš, Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almela, Alejandro, Alvarez-Muniz, Jaime, Alves Batista, Rafael, Anastasi, Gioacchino Alex, Anchordoqui, Luis A., Andrada, Belén, Andringa, Sofia, Aramo, Carla, Araújo Ferreira, Paulo Ricardo, Arteaga Velazquez, Juan Carlos, Asorey, Hernán Gonzalo, Assis, Pedro, Avila, Gualberto, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Barreira Luz, Ricardo Jorge, Becker, Karl-Heinz, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bertou, Xavier, Biermann, Peter L., Binet, Virginia, Bismark, Kathrin, Bister, Teresa, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Bohacova, Martina, Boncioli, Denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, Büsken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Carceller, Juan Miguel, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agustín, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Conceição, Rúben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia Dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., Almeida, Rogerio M. De, Jesús, Joaquín De, Jong, Sijbrand J. De, De Mauro, Giuseppe, Mello Neto, João De, De Mitri, Ivan, Oliveira, Jaime De, Oliveira Franco, Danelise De, Palma, Francesco De, Souza, Vitor De, De Vito, Emanuele, Río, Mariano Del, Deligny, Olivier, Deval, Luca, Matteo, Armando Di, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, Anjos, Rita Dos, Santos, Diego Dos, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys R., Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipcic, Andrej, Fitoussi, Thomas, Freire, Martín Miguel, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, García Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, GIACCARI, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, Gonzalez, Nicolas Martin, Goos, Isabel, Gora, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia María, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, Hörandel, Jörg, Horvath, Pavel, Hrabovsky, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Juryšek, Jakub, Kääpä, Alex, Kampert, Karl-Heinz, Karastathis, Nikolaos, Keilhauer, Bianca, Kemp, Julian, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Köpke, Marcel, Kunka, Norbert, Lago, Bruno L., Lang, Rodrigo Guedes, Langner, Niklas, Leigui De Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, LOPES, Luis, López, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariazzi, Analisa, Maris, Ioana Codrina, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Merenda, Kevin-Druis, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, François, Morello, Carlo, Mostafa, Miguel, Müller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco Stein, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Nosek, Dalibor, Novotný, Vladimír, Nozka, Libor, Nucita, Achille, Nunez, Luis A., Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pedreira, Francisco, Pękala, Jan, Pelayo, Rodrigo, Peña-Rodríguez, Jesús, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perlin, Matías, Perrone, Lorenzo, Petrera, Sergio, Pierog, Tanguy, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues De Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Salamida, Francesco, Salazar, Humberto Ibarguen, Salina, Gaetano, Sanabria Gomez, Jose, Sánchez, Federico Andrés, Santos, Edivaldo Moura, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schovanek, Petr, Schröder, Frank G., Schröder, Sonja, Schulte, Josina, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smida, Radomir, Sommers, Paul, Soriano, Jorge F., Souchard, Julien, Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijarvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberic, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara Keiko Oliveira, Watson, Alan, Weber, Marc, Weindl, Andreas, Wiencke, Lawrence, Wilczyński, Henryk, Wirtz, Marcus, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
7. Clean energy
Abstract

The Pierre Auger Observatory investigates the properties of the highest energy cosmic rays with unprecedented precision. The aim of the AugerPrime upgrade is to improve the sensitivity to the primary particle type. The improved mass sensitivity is the key to exploring the origin of the highest-energy particles in the Universe. The purpose of the Radio Detector (as part of AugerPrime) is to extend the sensitivity of the mass measurements to zenith angles in the range from 65° to 85°. A radio antenna, sensitive in two polarization directions and covering a bandwidth from 30 to 80 MHz, will be added to each of the 1661 surface detector stations over the full 3000 km2 area, forming the world’s largest radio array for the detection of cosmic particles. Since November 2019, an engineering array comprised of ten stations has been installed in the field. The radio antennas are calibrated using the Galactic (diffuse) emission. The sidereal modulation of this signal is monitored continuously and is used to obtain an end-to-end calibration from the receiving antenna to the ADC in the read-out electronics. The calibration method and first results will be presented. The engineering array is also fully integrated in the data acquisition of the Observatory and records air showers regularly. The first air showers detected simultaneously with the water-Cherenkov detectors and the Radio Detectors will be presented. Simulations of the detected showers, based on the reconstructed quantities, have been conducted with CORSIKA/CoREAS. A comparison of the measured radio signals with those predicted by simulations exhibits satisfying agreement.

21. Large-scale and multipolar anisotropies of cosmic rays detected at the Pierre Auger Observatory with energies above 4 EeV

Author

Pierre Auger Collaboration, Almeida, Rogerio de, Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almela, Alejandro, Alvarez-Muniz, Jaime, Alves Batista, Rafael, Anastasi, Gioacchino Alex, Anchordoqui, Luis A., Andrada, Belén, Andringa, Sofia, Aramo, Carla, Araújo Ferreira, Paulo Ricardo, Arteaga Velazquez, Juan Carlos, Asorey, Hernán Gonzalo, Assis, Pedro, Avila, Gualberto, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Barreira Luz, Ricardo Jorge, Becker, Karl-Heinz, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bertou, Xavier, Biermann, Peter L., Binet, Virginia, Bismark, Kathrin, Bister, Teresa, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Bohacova, Martina, boncioli, denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, Büsken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Carceller, Juan Miguel, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agustín, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Conceição, Rúben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., Almeida, Rogerio M. de, Jesús, Joaquín de, Jong, Sijbrand J. de, De Mauro, Giuseppe, Mello Neto, João de, De Mitri, Ivan, Oliveira, Jaime de, Oliveira Franco, Danelise de, Palma, Francesco de, Souza, Vitor de, De Vito, Emanuele, Río, Mariano del, Deligny, Olivier, Deval, Luca, Matteo, Armando di, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, Anjos, Rita dos, Santos, Diego dos, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys R., Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipcic, Andrej, Fitoussi, Thomas, Fodran, Tomáš, Freire, Martín Miguel, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, García Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, GIACCARI, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, Gonzalez, Nicolas Martin, Goos, Isabel, Gora, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia María, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, Hörandel, Jörg, Horvath, Pavel, Hrabovsky, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Juryšek, Jakub, Kääpä, Alex, Kampert, Karl-Heinz, Karastathis, Nikolaos, Keilhauer, Bianca, Kemp, Julian, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Köpke, Marcel, Kunka, Norbert, Lago, Bruno L., Lang, Rodrigo Guedes, Langner, Niklas, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, LOPES, Luis, López, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariazzi, Analisa, Maris, Ioana Codrina, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Merenda, Kevin-Druis, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, François, Morello, Carlo, Mostafa, Miguel, Müller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco Stein, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Nosek, Dalibor, Novotný, Vladimír, Nozka, Libor, Nucita, Achille, Nunez, Luis A., Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pedreira, Francisco, Pękala, Jan, Pelayo, Rodrigo, Peña-Rodríguez, Jesús, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perlin, Matías, Perrone, Lorenzo, Petrera, Sergio, Pierog, Tanguy, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Salamida, Francesco, Salazar, Humberto Ibarguen, Salina, Gaetano, Sanabria Gomez, Jose, Sánchez, Federico Andrés, Santos, Edivaldo Moura, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schovanek, Petr, Schröder, Frank G., Schröder, Sonja, Schulte, Josina, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smida, Radomir, Sommers, Paul, Soriano, Jorge F., Souchard, Julien, Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijarvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberic, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara Keiko Oliveira, Watson, Alan, Weber, Marc, Weindl, Andreas, Wiencke, Lawrence, Wilczyński, Henryk, Wirtz, Marcus, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
Physics, Pierre Auger Observatory, Astrophysics::High Energy Astrophysical Phenomena, media_common.quotation_subject, Astronomy, Astrophysics::Instrumentation and Methods for Astrophysics, Spectral density, Cosmic ray, Astrophysics, Azimuth, Sky, Observatory, Experimental High Energy Physics, ddc:530, High Energy Physics, Right ascension, Zenith, media_common
Abstract

More than half a century after the discovery of ultra-high energy cosmic rays (UHECRs), their origin is still an open question. The study of anisotropies in the arrival directions of such particles is an essential ingredient to solve this puzzle. We update our previous analysis of large-scale anisotropies observed by the Pierre Auger Observatory using the latest data collected before the AugerPrime upgrade. We select events with zenith angles up to 80 degrees, implying a sky coverage of 85$\%$, and energies above 4 EeV, for which the surface detector of the Observatory is fully efficient. Dipolar and quadrupolar amplitudes are evaluated through a combined Fourier analysis of the event count rate in right ascension and azimuth. The analysis is performed in three energy bins with boundaries at 4, 8, 16 and 32 EeV and two additional cumulative bins with energies above 8 and 32 EeV. The most significant signal is a dipolar modulation in right ascension for energies above 8 EeV, as previously reported, with statistical significance of $6.6\sigma$. Additionally, we report the measurements of the angular power spectrum for the same energy bins with the same dataset.

22. Monte Carlo simulations for the Pierre Auger Observatory using the VO auger grid resources

Author

Pierre Auger Collaboration, Santos, Eva, Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almela, Alejandro, Alvarez-Muniz, Jaime, Alves Batista, Rafael, Anastasi, Gioacchino Alex, Anchordoqui, Luis A., Andrada, Belén, Andringa, Sofia, Aramo, Carla, Araújo Ferreira, Paulo Ricardo, Arteaga Velazquez, Juan Carlos, Asorey, Hernán Gonzalo, Assis, Pedro, Avila, Gualberto, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Barreira Luz, Ricardo Jorge, Becker, Karl-Heinz, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bertou, Xavier, Biermann, Peter L., Binet, Virginia, Bismark, Kathrin, Bister, Teresa, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Bohacova, Martina, boncioli, denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, Büsken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Carceller, Juan Miguel, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agustín, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Conceição, Rúben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., Almeida, Rogerio M. de, Jesús, Joaquín de, Jong, Sijbrand J. de, De Mauro, Giuseppe, Mello Neto, João de, De Mitri, Ivan, Oliveira, Jaime de, Oliveira Franco, Danelise de, Palma, Francesco de, Souza, Vitor de, De Vito, Emanuele, Río, Mariano del, Deligny, Olivier, Deval, Luca, Matteo, Armando di, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, Anjos, Rita dos, Santos, Diego dos, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys R., Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipcic, Andrej, Fitoussi, Thomas, Fodran, Tomáš, Freire, Martín Miguel, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, García Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, GIACCARI, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, Gonzalez, Nicolas Martin, Goos, Isabel, Gora, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia María, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, Hörandel, Jörg, Horvath, Pavel, Hrabovsky, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Juryšek, Jakub, Kääpä, Alex, Kampert, Karl-Heinz, Karastathis, Nikolaos, Keilhauer, Bianca, Kemp, Julian, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Köpke, Marcel, Kunka, Norbert, Lago, Bruno L., Lang, Rodrigo Guedes, Langner, Niklas, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, LOPES, Luis, López, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariazzi, Analisa, Maris, Ioana Codrina, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Merenda, Kevin-Druis, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, François, Morello, Carlo, Mostafa, Miguel, Müller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco Stein, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Nosek, Dalibor, Novotný, Vladimír, Nozka, Libor, Nucita, Achille, Nunez, Luis A., Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pedreira, Francisco, Pękala, Jan, Pelayo, Rodrigo, Peña-Rodríguez, Jesús, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perlin, Matías, Perrone, Lorenzo, Petrera, Sergio, Pierog, Tanguy, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Salamida, Francesco, Salazar, Humberto Ibarguen, Salina, Gaetano, Sanabria Gomez, Jose, Sánchez, Federico Andrés, Santos, Edivaldo Moura, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schovanek, Petr, Schröder, Frank G., Schröder, Sonja, Schulte, Josina, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smida, Radomir, Sommers, Paul, Soriano, Jorge F., Souchard, Julien, Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijarvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberic, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara Keiko Oliveira, Watson, Alan, Weber, Marc, Weindl, Andreas, Wiencke, Lawrence, Wilczyński, Henryk, Wirtz, Marcus, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
Pierre Auger Observatory, Physics, Large Hadron Collider, Physics::Instrumentation and Detectors, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Detector, Monte Carlo method, Astrophysics::Instrumentation and Methods for Astrophysics, Cosmic ray, Grid, Computational physics, Auger, Upgrade, Experimental High Energy Physics, ddc:530, High Energy Physics
Abstract

The Pierre Auger Observatory, located near Malargue, Argentina, is the world's largest cosmic-ray detector. It comprises a $3000\,\mathrm{km}^{2}$ surface detector and 27 fluorescence telescopes, which measure the lateral and longitudinal distributions of the many millions of air-shower particles produced in the interactions initiated by a cosmic ray in the Earth's atmosphere. The determination of the nature of cosmic rays and studies of the detector performances rely on extensive Monte Carlo simulations describing the physics processes occurring in extensive air showers and the detector responses. The aim of the Monte Carlo simulations task is to produce and provide the Auger Collaboration with reference libraries used in a wide variety of analyses. All multipurpose detector simulations are currently produced in local clusters using Slurm and HTCondor. The bulk of the shower simulations are produced on the grid, via the Virtual Organization auger, using the DIRAC middleware. The job submission is made via python scripts using the DIRAC-API. The Auger site is undergoing a major upgrade, which includes the installation of new types of detectors, demanding increased simulation resources. The novel detection of the radio component of extensive air showers is the most challenging endeavor, requiring dedicated shower simulations with very long computation times, not optimized for the grid production. For data redundancy, the simulations are stored on the Lyon server and the grid Disk Pool Manager and are accessible to the Auger members via iRODS and DIRAC, respectively. The CERN VM-File System is used for software distribution where, soon, the Auger Offline software will also be made available.

23. Outreach activities at the Pierre Auger Observatory

Author

Collaboration, Pierre Auger, Caballero Mora, Karen Salom��, Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almela, Alejandro, Alvarez-Muniz, Jaime, Alves Batista, Rafael, Anastasi, Gioacchino Alex, Anchordoqui, Luis A., Andrada, Bel��n, Andringa, Sofia, Aramo, Carla, Ara��jo Ferreira, Paulo Ricardo, Arteaga Velazquez, Juan Carlos, Asorey, Hern��n Gonzalo, Assis, Pedro, Avila, Gualberto, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Barreira Luz, Ricardo Jorge, Becker, Karl-Heinz, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bertou, Xavier, Biermann, Peter L., Binet, Virginia, Bismark, Kathrin, Bister, Teresa, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Bohacova, Martina, Boncioli, Denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thomas, Brichetto Orchera, P. Gabriel, Briechle, Florian Lukas, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, B��sken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Carceller, Juan Miguel, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marcos, Chinellato, Jose Augusto, Chudoba, Jiri, Chytka, Ladislav, Clay, Roger W., Cobos Cerutti, Agust��n, Colalillo, Roberta, Coleman, Alan, Coluccia, Maria Rita, Concei����o, R��ben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia Dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., Almeida, Rogerio M. De, Jes��s, Joaqu��n De, Jong, Sijbrand J. De, De Mauro, Giuseppe, Mello Neto, Jo��o De, De Mitri, Ivan, Oliveira, Jaime De, Oliveira Franco, Danelise De, Palma, Francesco De, Souza, Vitor De, De Vito, Emanuele, R��o, Mariano Del, Deligny, Olivier, Deval, Luca, Matteo, Armando Di, Dobrigkeit, Carola, D'Olivo, Juan Carlos, Domingues Mendes, Luis Miguel, Anjos, Rita Dos, Santos, Diego Dos, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys R., Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipcic, Andrej, Fitoussi, Thomas, Fodran, Tom����, Freire, Mart��n Miguel, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, Garc��a, Beatriz, Garc��a Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, GIACCARI, Ugo, Giammarchi, Marco, Glombitza, Jonas, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, G��mez Berisso, Mariano, G��mez Vitale, Primo F., Gongora, Juan Pablo, Gonz��lez, Juan Manuel, Gonzalez, Nicolas Martin, Goos, Isabel, Gora, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Mat��as Rolf, Hansen, Patricia Mar��a, Harari, Diego, Harvey, Violet M., Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Hill, Gary C., Hojvat, Carlos, H��randel, J��rg, Horvath, Pavel, Hrabovsky, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Jury��ek, Jakub, K����p��, Alex, Kampert, Karl-Heinz, Karastathis, Nikolaos, Keilhauer, Bianca, Kemp, Julian, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, K��pke, Marcel, Kunka, Norbert, Lago, Bruno L., Lang, Rodrigo Guedes, Langner, Niklas, Leigui De Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, LOPES, Luis, L��pez, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariazzi, Analisa, Maris, Ioana Codrina, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Mart��nez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, James, Matthiae, Giorgio, Mayotte, Eric, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Merenda, Kevin-Druis, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, Fran��ois, Morello, Carlo, Mostafa, Miguel, M��ller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco Stein, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Lukas, Niculescu-Oglinzanu, Mihai, Niechciol, Marcus, Nitz, Dave, Nosek, Dalibor, Novotn��, Vladim��r, Nozka, Libor, Nucita, Achille, Nunez, Luis A., Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Jannis, Pech, Miroslav, Pedreira, Francisco, P��kala, Jan, Pelayo, Rodrigo, Pe��a-Rodr��guez, Jes��s, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, P��rez Bertolli, Carmina, Perlin, Mat��as, Perrone, Lorenzo, Petrera, Sergio, Pierog, Tanguy, Pimenta, M��rio, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Markus, Rizi, Vincenzo, Rodrigues De Carvalho, Washington, Rodriguez Rojo, Jorge Rub��n, Roncoroni, Mat��as J., Rossoni, Simone, Roth, Markus, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Salamida, Francesco, Salazar, Humberto Ibarguen, Salina, Gaetano, Sanabria Gomez, Jose, S��nchez, Federico Andr��s, Santos, Edivaldo Moura, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Sch��fer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schl��ter, Felix, Schmidt, David, Scholten, Olaf, Schovanek, Petr, Schr��der, Frank G., Schr��der, Sonja, Schulte, Josina, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smida, Radomir, Sommers, Paul, Soriano, Jorge F., Souchard, Julien, Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Denis, Stani��, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Su��rez-Dur��n, Mauricio, Sudholz, Tristan, Suomijarvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charles, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tom��, Bernardo, Torr��s, Zo��, Travaini, Andres, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Vaclavek, Luk����, Vacula, Martin, Vald��s Galicia, Jose F., Valore, Laura, Varela, Enrique, V��squez-Ram��rez, Adriana, Veberic, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara Keiko Oliveira, Watson, Alan, Weber, Marc, Weindl, Andreas, Wiencke, Lawrence, Wilczy��ski, Henryk, Wirtz, Marcus, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
Outreach, Pierre Auger Observatory, Engineering, business.industry, Astronomy, Experimental High Energy Physics, Library science, High Energy Physics, ddc:620, business, Engineering & allied operations
Abstract

Contains fulltext : 249220.pdf (Publisher’s version ) (Open Access)

24. Downward Terrestrial Gamma-ray Flashes at the Pierre Auger Observatory?

Author

Colalillo, R., Abreu, P., Aglietta, M., Albury, J. M., Allekotte, I., Almela, A., Alvarez-Muñiz, J., Alves Batista, R., Anastasi, G. A., Anchordoqui, L., Andrada, B., Andringa, S., Aramo, C., Araújo Ferreira, P. R., Arteaga Velázquez, J. C., Asorey, H., Assis, P., Avila, G., Badescu, A. M., Bakalova, A., Balaceanu, A., Barbato, F., Barreira Luz, R. J., Becker, K. H., Bellido, J. A., Berat, C., Bertaina, M. E., Bertou, X., Biermann, P. L., Binet, V., Bismark, K., Bister, T., Biteau, J., Blazek, J., Bleve, C., Boháčová, M., Boncioli, D., Bonifazi, C., Bonneau Arbeletche, L., Borodai, N., Botti, A. M., Brack, J., Bretz, T., Brichetto Orchera, P. G., Briechle, F. L., Buchholz, P., Bueno, A., Buitink, S., Buscemi, M., Büsken, M., Caballero-Mora, K. S., Caccianiga, L., Canfora, F., Caracas, I., Carceller, J. M., Caruso, R., Castellina, A., Catalani, F., Cataldi, G., Cazon, L., Cerda, M., Chinellato, J. A., Chudoba, J., Chytka, L., Clay, R. W., Cobos Cerutti, A. C., Coleman, A., Coluccia, M. R., Ruben Conceição, Condorelli, A., Consolati, G., Contreras, F., Convenga, F., Correia Dos Santos, D., Covault, C. E., Dasso, S., Daumiller, K., Dawson, B. R., Day, J. A., Almeida, R. M., Jesús, J., Jong, S. J., Mauro, G., Mello Neto, J. R. T., Mitri, I., Oliveira, J., Oliveira Franco, D., Palma, F., Souza, V., Vito, E., Del Río, M., Deligny, O., Deval, L., Di Matteo, A., Dobrigkeit, C., D’olivo, J. C., Domingues Mendes, L. M., Dos Anjos, R. C., Dos Santos, D., Dova, M. T., Ebr, J., Engel, R., Epicoco, I., Erdmann, M., Escobar, C. O., Etchegoyen, A., Falcke, H., Farmer, J., Farrar, G., Fauth, A. C., Fazzini, N., Feldbusch, F., Fenu, F., Fick, B., Figueira, J. M., Filipčič, A., Fitoussi, T., Fodran, T., Freire, M. M., Fujii, T., Fuster, A., Galea, C., Galelli, C., García, B., Garcia Vegas, A. L., Gemmeke, H., Gesualdi, F., Gherghel-Lascu, A., Ghia, P. L., Giaccari, U., Giammarchi, M., Glombitza, J., Gobbi, F., Gollan, F., Golup, G., Gómez Berisso, M., Gómez Vitale, P. F., Gongora, J. P., González, J. M., González, N., Goos, I., Góra, D., Gorgi, A., Gottowik, M., Grubb, T. D., Guarino, F., Guedes, G. P., Guido, E., Hahn, S., Hamal, P., Hampel, M. R., Hansen, P., Harari, D., Harvey, V. M., Haungs, A., Hebbeker, T., Heck, D., Hill, G. C., Hojvat, C., Hörandel, J. R., Horvath, P., Hrabovský, M., Huege, T., Insolia, A., Isar, P. G., Janecek, P., Johnsen, J. A., Jurysek, J., Kääpä, A., Kampert, K. H., Karastathis, N., Keilhauer, B., Kemp, J., Khakurdikar, A., Kizakke Covilakam, V. V., Klages, H. O., Kleifges, M., Kleinfeller, J., Köpke, M., Kunka, N., Lago, B. L., Lang, R. G., Langner, N., Leigui Oliveira, M. A., Lenok, V., Letessier-Selvon, A., Lhenry-Yvon, I., Lo Presti, D., Lopes, L., López, R., Lu, L., Luce, Q., Lundquist, J. P., Machado Payeras, A., Mancarella, G., Mandat, D., Manning, B. C., Manshanden, J., Mantsch, P., Marafico, S., Mariazzi, A. G., Mariş, I. C., Marsella, G., Martello, D., Martinelli, S., Martínez Bravo, O., Mastrodicasa, M., Mathes, H. J., Matthews, J., Matthiae, G., Mayotte, E., Mazur, P. O., Medina-Tanco, G., Melo, D., Menshikov, A., Merenda, K. -D, Michal, S., Micheletti, M. I., Miramonti, L., Mollerach, S., Montanet, F., Morello, C., Mostafá, M., Müller, A. L., Muller, M. A., Mulrey, K., Mussa, R., Muzio, M., Namasaka, W. M., Nasr-Esfahani, A., Nellen, L., Niculescu-Oglinzanu, M., Niechciol, M., Nitz, D., Nosek, D., Novotny, V., Nožka, L., Nucita, A., Núñez, L. A., Palatka, M., Pallotta, J., Papenbreer, P., Parente, G., Parra, A., Pawlowsky, J., Pech, M., Pedreira, F., Pȩkala, J., Pelayo, R., Peña-Rodriguez, J., Pereira Martins, E. E., Perez Armand, J., Pérez Bertolli, C., Perlin, M., Perrone, L., Petrera, S., Pierog, T., Pimenta, M., Pirronello, V., Platino, M., Pont, B., Pothast, M., Privitera, P., Prouza, M., Puyleart, A., Querchfeld, S., Rautenberg, J., Ravignani, D., Reininghaus, M., Ridky, J., Riehn, F., Risse, M., Rizi, V., Rodrigues Carvalho, W., Rodriguez Rojo, J., Roncoroni, M. J., Rossoni, S., Roth, M., Roulet, E., Rovero, A. C., Ruehl, P., Saftoiu, A., Salamida, F., Salazar, H., Salina, G., Sanabria Gomez, J. D., Sánchez, F., Santos, E. M., Santos, E., Sarazin, F., Sarmento, R., Sarmiento-Cano, C., Sato, R., Savina, P., Schäfer, C. M., Scherini, V., Schieler, H., Schimassek, M., Schimp, M., Schlüter, F., Schmidt, D., Scholten, O., Schovánek, P., Schröder, F. G., Schröder, S., Schulte, J., Sciutto, S. J., Scornavacche, M., Segreto, A., Sehgal, S., Shellard, R. C., Sigl, G., Silli, G., Sima, O., Šmída, R., Sommers, P., Soriano, J. F., Souchard, J., Squartini, R., Stadelmaier, M., Stanca, D., Stanič, S., Stasielak, J., Stassi, P., Streich, A., Suárez-Durán, M., Sudholz, T., Suomijärvi, T., Supanitsky, A. D., Szadkowski, Z., Tapia, A., Taricco, C., Timmermans, C., Tkachenko, O., Tobiska, P., Todero Peixoto, C. J., Tomé, B., Torrès, Z., Travaini, A., Travnicek, P., Trimarelli, C., Tueros, M., Ulrich, R., Unger, M., Vaclavek, L., Vacula, M., Valdés Galicia, J. F., Valore, L., Varela, E., Vásquez-Ramírez, A., Veberič, D., Ventura, C., Vergara Quispe, I. D., Verzi, V., Vicha, J., Vink, J., Vorobiov, S., Wahlberg, H., Watanabe, C., Watson, A. A., Weber, M., Weindl, A., Wiencke, L., Wilczyński, H., Wirtz, M., Wittkowski, D., Wundheiler, B., Yushkov, A., Zapparrata, O., Zas, E., Zavrtanik, D., Zavrtanik, M., Zehrer, L., Colalillo, Roberta, Abreu, Pedro, Aglietta, Marco, Albury, Justin M., Allekotte, Ingomar, Almela, Alejandro, Alvarez-Muniz, Jaime, Alves Batista, Rafael, Anastasi, Gioacchino Alex, Anchordoqui, Luis A., Andrada, Belén, Andringa, Sofia, Aramo, Carla, Araújo Ferreira, Paulo Ricardo, Arteaga Velazquez, Juan Carlo, Asorey, Hernán Gonzalo, Assis, Pedro, Avila, Gualberto, Badescu, Alina Mihaela, Bakalova, Alena, Balaceanu, Alexandru, Barbato, Felicia, Barreira Luz, Ricardo Jorge, Becker, Karl-Heinz, Bellido, Jose A., Berat, Corinne, Bertaina, Mario Edoardo, Bertou, Xavier, Biermann, Peter L., Binet, Virginia, Bismark, Kathrin, Bister, Teresa, Biteau, Jonathan, Blazek, Jiri, Bleve, Carla, Bohacova, Martina, Boncioli, Denise, Bonifazi, Carla, Bonneau Arbeletche, Luan, Borodai, Nataliia, Botti, Ana Martina, Brack, Jeffrey, Bretz, Thoma, Brichetto Orchera, P. Gabriel, Briechle, Florian Luka, Buchholz, Peter, Bueno, Antonio, Buitink, Stijn, Buscemi, Mario, Büsken, Max, Caballero-Mora, Karen S., Caccianiga, Lorenzo, Canfora, Fabrizia, Caracas, Ioana, Carceller, Juan Miguel, Caruso, Rossella, Castellina, Antonella, Catalani, Fernando, Cataldi, Gabriella, Cazon, Lorenzo, Cerda, Marco, Chinellato, Jose Augusto, Chudoba, Jiří, Chytka, Ladislav, Clay, Roger W, Cobos Cerutti, Agustín, Coleman, Alan, Coluccia, Maria Rita, Conceição, Rúben, Condorelli, Antonio, Consolati, Giovanni, Contreras, Fernando, Convenga, Fabio, Correia dos Santos, Diego, Covault, Corbin, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., Day, Jarryd A., de Almeida, Rogerio M., de Jesús, Joaquín, de Jong, Sijbrand J., De Mauro, Giuseppe, de Mello Neto, João, De Mitri, Ivan, de Oliveira, Jaime, de Oliveira Franco, Danelise, de Palma, Francesco, de Souza, Vitor, De Vito, Emanuele, del Río, Mariano, Deligny, Olivier, Deval, Luca, di Matteo, Armando, Dobrigkeit, Carola, D'Olivo, Juan Carlo, Domingues Mendes, Luis Miguel, dos Anjos, Rita, dos Santos, Diego, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Epicoco, Italo, Erdmann, Martin, Escobar, Carlos O., Etchegoyen, Alberto, Falcke, Heino, Farmer, John, Farrar, Glennys R., Fauth, Anderson, Fazzini, Norberto, Feldbusch, Fridtjof, Fenu, Francesco, Fick, Brian, Figueira, Juan Manuel, Filipcic, Andrej, Fitoussi, Thoma, Fodran, Tomáš, Freire, Martín Miguel, Fujii, Toshihiro, Fuster, Alan, Galea, Cristina, Galelli, Claudio, García, Beatriz, García Vegas, Adrianna Luz, Gemmeke, Hartmut, Gesualdi, Flavia, Gherghel-Lascu, Alexandru, Ghia, Piera Luisa, Giaccari, Ugo, Giammarchi, Marco, Glombitza, Jona, Gobbi, Fabian, Gollan, Fernando, Golup, Geraldina, Gómez Berisso, Mariano, Gómez Vitale, Primo F., Gongora, Juan Pablo, González, Juan Manuel, Gonzalez, Nicolas Martin, Goos, Isabel, Gora, Dariusz, Gorgi, Alessio, Gottowik, Marvin, Grubb, Trent D., Guarino, Fausto, Guedes, Germano, Guido, Eleonora, Hahn, Steffen, Hamal, Petr, Hampel, Matías Rolf, Hansen, Patricia María, Harari, Diego, Harvey, Violet M., Haungs, Andrea, Hebbeker, Thoma, Heck, Dieter, Hill, Gary C., Hojvat, Carlo, Hörandel, Jörg, Horvath, Pavel, Hrabovsky, Miroslav, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Janecek, Petr, Johnsen, Jeffrey A., Juryšek, Jakub, Kääpä, Alex, Kampert, Karl-Heinz, Karastathis, Nikolao, Keilhauer, Bianca, Kemp, Julian, Khakurdikar, Abha, Kizakke Covilakam, Varada Varma, Klages, Han, Kleifges, Matthia, Kleinfeller, Jonny, Köpke, Marcel, Kunka, Norbert, Lago, Bruno L., Lang, Rodrigo Guede, Langner, Nikla, Leigui de Oliveira, Marcelo Augusto, Lenok, Vladimir, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Lo Presti, Domenico, Lopes, Lui, López, Rebeca, Lu, Lu, Luce, Quentin, Lundquist, Jon Paul, Machado Payeras, Allan, Mancarella, Giovanni, Mandat, Dusan, Manning, Bradley C., Manshanden, Julien, Mantsch, Paul, Marafico, Sullivan, Mariazzi, Analisa, Maris, Ioana Codrina, Marsella, Giovanni, Martello, Daniele, Martinelli, Sara, Martínez Bravo, Oscar, Mastrodicasa, Massimo, Mathes, Hermann-Josef, Matthews, Jame, Matthiae, Giorgio, Mayotte, Eric, Mazur, Peter, Medina-Tanco, Gustavo, Melo, Diego, Menshikov, Alexander, Merenda, Kevin-Drui, Michal, Stanislav, Micheletti, Maria Isabel, Miramonti, Lino, Mollerach, Silvia, Montanet, Françoi, Morello, Carlo, Mostafa, Miguel, Müller, Ana L., Muller, Marcio Aparecido, Mulrey, Katharine, Mussa, Roberto, Muzio, Marco Stein, Namasaka, Wilson M., Nasr-Esfahani, Alina, Nellen, Luka, Niculescu-Oglinzanu, Mihai, Niechciol, Marcu, Nitz, Dave, Nosek, Dalibor, Novotný, Vladimír, Nozka, Libor, Nucita, Achille, Nunez, Luis A., Palatka, Miroslav, Pallotta, Juan, Papenbreer, Philipp, Parente, Gonzalo, Parra, Alejandra, Pawlowsky, Janni, Pech, Miroslav, Pedreira, Francisco, Pękala, Jan, Pelayo, Rodrigo, Peña-Rodríguez, Jesú, Pereira Martins, Edyvania Emily, Perez Armand, Johnnier, Pérez Bertolli, Carmina, Perlin, Matía, Perrone, Lorenzo, Petrera, Sergio, Pierog, Tanguy, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Pont, Bjarni, Pothast, Mart, Privitera, Paolo, Prouza, Michael, Puyleart, Andrew, Querchfeld, Sven, Rautenberg, Julian, Ravignani, Diego, Reininghaus, Maximilian, Ridky, Jan, Riehn, Felix, Risse, Marku, Rizi, Vincenzo, Rodrigues de Carvalho, Washington, Rodriguez Rojo, Jorge Rubén, Roncoroni, Matías J., Rossoni, Simone, Roth, Marku, Roulet, Esteban, Rovero, Adrian, Ruehl, Philip, Saftoiu, Alexandra, Salamida, Francesco, Salazar, Humberto Ibarguen, Salina, Gaetano, Sanabria Gomez, Jose, Sánchez, Federico André, Santos, Edivaldo Moura, Santos, Eva, Sarazin, Fred, Sarmento, Raul, Sarmiento-Cano, Christian, Sato, Ricardo, Savina, Pierpaolo, Schäfer, Christoph M., Scherini, Viviana, Schieler, Harald, Schimassek, Martin, Schimp, Michael, Schlüter, Felix, Schmidt, David, Scholten, Olaf, Schovanek, Petr, Schröder, Frank G., Schröder, Sonja, Schulte, Josina, Sciutto, Sergio, Scornavacche, Marina, Segreto, Alberto, Sehgal, Srijan, Shellard, Ronald C., Sigl, Guenter, Silli, Gaia, Sima, Octavian, Smida, Radomir, Sommers, Paul, Soriano, Jorge F., Souchard, Julien, Squartini, Ruben, Stadelmaier, Maximilian, Stanca, Deni, Stanič, Samo, Stasielak, Jaroslaw, Stassi, Patrick, Streich, Alexander, Suárez-Durán, Mauricio, Sudholz, Tristan, Suomijarvi, Tiina, Supanitsky, A. Daniel, Szadkowski, Zbigniew, Tapia, Alex, Taricco, Carla, Timmermans, Charle, Tkachenko, Olena, Tobiska, Petr, Todero Peixoto, Carlos J., Tomé, Bernardo, Torrès, Zoé, Travaini, Andre, Travnicek, Petr, Trimarelli, Caterina, Tueros, Matia, Ulrich, Ralf, Unger, Michael, Vaclavek, Lukáš, Vacula, Martin, Valdés Galicia, Jose F., Valore, Laura, Varela, Enrique, Vásquez-Ramírez, Adriana, Veberic, Darko, Ventura, Cynthia, Vergara Quispe, Indira D., Verzi, Valerio, Vicha, Jakub, Vink, Jacco, Vorobiov, Serguei, Wahlberg, Hernan, Watanabe, Clara Keiko Oliveira, Watson, Alan, Weber, Marc, Weindl, Andrea, Wiencke, Lawrence, Wilczyński, Henryk, Wirtz, Marcu, Wittkowski, David, Wundheiler, Brian, Yushkov, Alexey, Zapparrata, Orazio, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, and Zehrer, Lukas

Subjects
Physics, Pierre Auger Observatory, Astronomy, Astrophysics::High Energy Astrophysical Phenomena, Gamma ray, Cosmic ray, Electron, Astrophysics, Lightning, Experimental High Energy Physics, Thunderstorm, High Energy Physics, Atmospheric electricity, ddc:620, Event (particle physics), Engineering & allied operations
Abstract

At the Pierre Auger Observatory, designed primarily to study ultra-high-energy cosmic rays, phenomena related to atmospheric electricity are also observed. Particularly, events have been detected with the surface detector, characterized by long-lasting signals (tens of microseconds) and event footprints much larger (up to 200 km$^2$) than those produced by the highest energy cosmic rays. Moreover, some of them appear to be accompanied by smaller events occurring in the same area within about 1 ms and probably produced by the same phenomenon. A previously reported correlation with the World Wide Lightning Location Network, as well as the observation of very low-altitude clouds, confirm that such events are related to thunderstorms. An ad-hoc reconstruction points to high-energy particles being produced very close to the ground, suggesting that they originate from electrons accelerated to relativistic energies in strong electric fields inside low clouds, as is the case for terrestrial gamma-ray flashes above thunderstorms. A clear explanation of the observed phenomenon is hindered by two facts. One is that the rate of such events, detected serendipitously, is very small (less than 2 events/year) and decreases further after optimization of the surface detector trigger for low-energy shower-events. The second is that most events show a puzzling lack of signals in the central part of the footprint. We have studied in detail both effects and will present such studies here. We developed a strategy for a dedicated trigger to enhance the detection efficiency for these events associated with atmospheric-electricity events.

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