Author: "Mićanović, Saša" - Searchworks@Jio Institute Digital Library Search Results

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218 results on '"Mićanović, Saša"'

1. Correction method applied to MC simulated LST images affected by clouds

Author: Żywucka, Natalia, Sitarek, Julian, Sobczyńska, Dorota, Pecimotika, Mario, Hrupec, Dario, Prester, Dijana Dominis, Pavletić, Lovro, and Mićanović, Saša
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: We present the results of a preliminary study of a correction method applied to the Imaging Atmospheric Cherenkov Telescope images affected by clouds. The studied data are Monte Carlo simulations made with CORSIKA, imitating the very high energy events registered by the Large-Sized Telescopes, a type of telescope within the future Cherenkov Telescope Array. We implement the cloud correction method in the ctapipe/lstchain analysis framework. The correction is based on a simple geometrical model of the emission. We show the effect of the correction method on the image parameters and the stereo-reconstructed shower parameters., Comment: 7 pages, 4 figures, High Energy Astrophysics in Southern Africa 2022 - HEASA2022, 28 September - 1 October 2022, Brandfort, South Africa
Published: 2024

2. A novel image correction method for cloud-affected observations with Imaging Atmospheric Cherenkov Telescopes

Author: Żywucka, Natalia, Sitarek, Julian, Sobczyńska, Dorota, Pecimotika, Mario, Hrupec, Dario, Prester, Dijana Dominis, Pavletić, Lovro, and Mićanović, Saša
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: Context. The presence of clouds during observations with Imaging Atmospheric Cherenkov Telescopes can strongly affect the performance of the instrument due to additional absorption of light and scattering of light beyond the field of view of the instrument. If not corrected for, the presence of clouds leads to increased systematic errors in the results. Aims. One approach to correct for the effects of clouds is to include clouds in Monte Carlo simulations to produce models for primary particle classification, energy and direction estimation. However, this method is challenging due to the dynamic nature of cloudy conditions and requires extensive computational resources. The second approach focuses on correcting the data itself for cloud effects, which allows the use of standard simulations. However, existing corrections often prioritise limiting systematic errors without optimising overall performance. By correcting the data already at the image level, it is possible to improve event reconstruction without the need for specialised simulations. Methods. We introduce a novel analysis method, based on a geometrical model that can correct the data already at the image level given a vertical transmission profile of a cloud. Using Monte Carlo simulations of an array of four Large-Sized Telescopes of the Cherenkov Telescope Array, we investigate the effect of the correction on the image parameters and the performance of the system. We compare the data correction at the camera level with the use of dedicated simulations for clouds with different transmissions and heights. Results. The proposed method efficiently corrects the extinction of light in clouds, eliminating the need for dedicated simulations. Evaluation using Monte Carlo simulations demonstrates improved gamma-ray event reconstruction and overall system performance., Comment: 15 pages, 11 figures, 2 tables, accepted for publication in A&A
Published: 2024
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3. Correcting Imaging Atmospheric Cherenkov Telescope data with atmospheric profiles obtained with an elastic light detecting and ranging system

Author: Schmuckermaier, Felix, Gaug, Markus, Fruck, Christian, Moralejo, Abelardo, Hahn, Alexander, Prester, Dijana Dominis, Dorner, Daniela, Font, Lluís, Mićanović, Saša, Mirzoyan, Razmik, Paneque, David, Pavletić, Lovro, Sitarek, Julian, and Will, Martin
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics
Abstract: Context. We are operating an elastic LIDAR for the monitoring of atmospheric conditions during regular observations of the MAGIC Telescopes. Aims. We present and evaluate methods to convert aerosol extinction profiles, obtained with the LIDAR, into corrections of the reconstructed gamma-ray event energy and Instrument Response Functions of Imaging Atmospheric Cherenkov Telescopes. Methods. We assess the performance of these correction schemes with almost seven years of Crab Nebula data taken by the MAGIC Telescopes under various zenith angles and different aerosol extinction scenarios of Cherenkov light. Results. The methods enable the reconstruction of data taken under non-optimal atmospheric conditions with aerosol transmissions down to around 0.65 with systematic uncertainties comparable to those for data taken under optimal conditions. For the first time, the correction of data affected by clouds has been included in the assessment. The data can also be corrected when the transmission is lower than 0.65, but the results are less accurate and suffer from larger systematics., Comment: 25 pages, 20 figures, 4 tables, accepted for publication in Astronomy & Astrophysics
Published: 2023
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4. Performance and systematic uncertainties of CTA-North in conditions of reduced atmospheric transmission

Author: Pecimotika, Mario, Prester, Dijana Dominis, Hrupec, Dario, Mićanović, Saša, Pavletić, Lovro, and Sitarek, Julian
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The Cherenkov Telescope Array (CTA) is the next-generation stereoscopic system of Imaging Atmospheric Cherenkov Telescopes (IACTs). In IACTs, the atmosphere is used as a calorimeter to measure the energy of extensive air showers induced by cosmic gamma rays, which brings along a series of constraints on the precision to which energy can be reconstructed. The presence of clouds during observations can severely affect Cherenkov light yield, contributing to the systematic uncertainty in energy scale calibration. To minimize these systematic uncertainties, a calibration of telescopes is of great importance. For this purpose, the influence of cloud transmission and altitude on CTA-N performance degradation was investigated using detailed Monte Carlo simulations for the case where no action is taken to correct for the effects of clouds. Variations of instrument response functions in the presence of clouds are presented. In the presence of clouds with low transmission ($\leq$ 80%) the energy resolution is aggravated by 30% at energies below 1 TeV, and by 10% at higher energies. For higher transmissions, the energy resolution is worse by less than 10% in the whole energy range. The angular resolution varies up to 10% depending both on the transmission and altitude of the cloud. The sensitivity of the array is most severely reduced at lower energies, even by 60% at 40 GeV, depending on the clouds' properties. A simple semi-analytical model of sensitivity degradation has been introduced to summarize the influence of clouds on sensitivity and provide useful scaling relations.
Published: 2023
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5. Characterizing the aerosol atmosphere above the Observatorio del Roque de los Muchachos by analyzing seven years of data taken with an GaAsP HPD-readout, absolutely calibrated elastic LIDAR

Author: Fruck, Christian, Gaug, Markus, Hahn, Alexander, Acciari, Victor, Besenrieder, Jürgen, Prester, Dijana Dominis, Dorner, Daniela, Fink, David, Font, Lluís, Mićanović, Saša, Mirzoyan, Razmik, Müller, Dominik, Pavletić, Lovro, Schmuckermaier, Felix, and Will, Martin
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, J.2.3, J.2.5
Abstract: We present a new elastic LIDAR concept, based on a bi-axially mounted Nd:YAG laser and a telescope with HPD readout, combined with fast FADC signal digitization and offline pulse analysis. The LIDAR return signals have been extensively quality checked and absolutely calibrated. We analyze seven years of quasi-continuous LIDAR data taken during those nights when the MAGIC telescopes were operating. Characterization of the nocturnal ground layer yields zenith and azimuth angle dependent aerosol extinction scale heights for clear nights. We derive aerosol transmission statistics for light emitted from various altitudes throughout the year and separated by seasons. We find further seasonal dependencies of cloud base and top altitudes, but none for the LIDAR ratios of clouds. Finally, the night sky background light is characterized using the LIDAR photon backgrounds. abstract.txt, Comment: 40 pages, submitted to MNRAS
Published: 2022
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6. Performance of the Cherenkov Telescope Array in the presence of clouds

Author: Pecimotika, Mario, Adamczyk, Katarzyna, Prester, Dijana Dominis, Gueta, Orel, Hrupec, Dario, Maier, Gernot, Mićanović, Saša, Pavletić, Lovro, Sitarek, Julian, Sobczyńska, Dorota, and Szanecki, Michał
Subjects: Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena
Abstract: The Cherenkov Telescope Array (CTA) is the future ground-based observatory for gamma-ray astronomy at very high energies. The atmosphere is an integral part of every Cherenkov telescope. Different atmospheric conditions, such as clouds, can reduce the fraction of Cherenkov photons produced in air showers that reach ground-based telescopes, which may affect the performance. Decreased sensitivity of the telescopes may lead to misconstructed energies and spectra. This study presents the impact of various atmospheric conditions on CTA performance. The atmospheric transmission in a cloudy atmosphere in the wavelength range from 203 nm to 1000 nm was simulated for different cloud bases and different optical depths using the MODerate resolution atmospheric TRANsmission (MODTRAN) code. MODTRAN output files were used as inputs for generic Monte Carlo simulations. The analysis was performed using the MAGIC Analysis and Reconstruction Software (MARS) adapted for CTA. As expected, the effects of clouds are most evident at low energies, near the energy threshold. Even in the presence of dense clouds, high-energy gamma rays may still trigger the telescopes if the first interaction occurs lower in the atmosphere, below the cloud base. A method to analyze very high-energy data obtained in the presence of clouds is presented. The systematic uncertainties of the method are evaluated. These studies help to gain more precise knowledge about the CTA response to cloudy conditions and give insights on how to proceed with data obtained in such conditions. This may prove crucial for alert-based observations and time-critical studies of transient phenomena.
Published: 2021
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7. A novel image-correction method for cloud-affected observations with Imaging Atmospheric Cherenkov Telescopes

Author: Żywucka, Natalia, primary, Sitarek, Julian, additional, Sobczyńska, Dorota, additional, Pecimotika, Mario, additional, Hrupec, Dario, additional, Dominis Prester, Dijana, additional, Pavletić, Lovro, additional, and Mićanović, Saša, additional
Published: 2024
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8. The Pierre Auger Observatory: Contributions to the 33rd International Cosmic Ray Conference (ICRC 2013)

Author: The Pierre Auger Collaboration, Aab, Alexander, Abreu, Pedro, Aglietta, Marco, Ahlers, Markus, Ahn, Eun-Joo, Albuquerque, Ivone, Allekotte, Ingomar, Allen, Jeff, Allison, Patrick, Almela, Alejandro, Castillo, Jesus Alvarez, Alvarez-Muñiz, Jaime, Batista, Rafael Alves, Ambrosio, Michelangelo, Aminaei, Amin, Anchordoqui, Luis, Andringa, Sofia, Antičić, Tome, Aramo, Carla, Arqueros, Fernando, Asorey, Hernán Gonzalo, Assis, Pedro, Aublin, Julien, Ave, Maximo, Avenier, Michel, Avila, Gualberto, Badescu, Alina Mihaela, Barber, Kerri B., Bardenet, Remi, Bäuml, Julia, Baus, Colin, Beatty, Jim, Becker, Karl Heinz, Bellido, Jose A., BenZvi, Segev, Berat, Corinne, Bertou, Xavier, Biermann, Peter, Billoir, Pierre, Blanco, Francisco, Blanco, Miguel, Bleve, Carla, Blümer, Hans, Boháčová, Martina, Boncioli, Denise, Bonifazi, Carla, Bonino, Raffaella, Borodai, Nataliia, Brack, Jeffrey, Brancus, Iliana, Brogueira, Pedro, Brown, William C., Buchholz, Peter, Bueno, Antonio, Buscemi, Mario, Caballero-Mora, Karen S., Caccianiga, Barbara, Caccianiga, Lorenzo, Candusso, Marina, Caramete, Laurentiu, Caruso, Rossella, Castellina, Antonella, Cataldi, Gabriella, Cazon, Lorenzo, Cester, Rosanna, Cheng, Shih-Ho, Chiavassa, Andrea, Chinellato, Jose Augusto, Chudoba, Jiri, Cilmo, Marco, Clay, Roger W, Cocciolo, Giuseppe, Colalillo, Roberta, Collica, Laura, Coluccia, Maria Rita, Conceição, Ruben, Contreras, Fernando, Cooper, Mathew J., Coutu, Stephane, Covault, Corbin, Criss, Adrienne, Cronin, James, Curutiu, Alex, Dallier, Richard, Daniel, Bruno, Dasso, Sergio, Daumiller, Kai, Dawson, Bruce R., de Almeida, Rogerio M., De Domenico, Manlio, de Jong, Sijbrand J., De La Vega, Gonzalo, Junior, Walter J. M. de Mello, Neto, Joao de Mello, De Mitri, Ivan, de Souza, Vitor, de Vries, Krijn, del Peral, Luis, Deligny, Olivier, Dembinski, Hans, Dhital, Niraj, Di Giulio, Claudio, Di Matteo, Armando, Diaz, Johana Chirinos, Castro, Mary Lucia Díaz, Diep, Pham Ngoc, Diogo, Francisco, Dobrigkeit, Carola, Docters, Wendy, D'Olivo, Juan Carlos, Dong, Pham Ngoc, Dorofeev, Alexei, Anjos, Joao dos, Dova, Maria Teresa, Ebr, Jan, Engel, Ralph, Erdmann, Martin, Escobar, Carlos O., Espadanal, Joao, Etchegoyen, Alberto, Luis, Pedro Facal San, Falcke, Heino, Fang, Ke, Farrar, Glennys, Fauth, Anderson, Fazzini, Norberto, Ferguson, Andrew P., Fick, Brian, Figueira, Juan Manuel, Filevich, Alberto, Filipčič, Andrej, Foerster, Nadine, Fox, Brendan, Fracchiolla, Claudia, Fraenkel, Eric Daniel, Fratu, Octavian, Fröhlich, Uwe, Fuchs, Benjamin, Gaior, Romain, Gamarra, Rodolfo Federico, Gambetta, Silvia, García, Beatriz, Roca, Sayri Tupac Garcia, Garcia-Gamez, Diego, Garcia-Pinto, Diego, Garilli, Gianpaolo, Bravo, Alberto Gascon, Gemmeke, Hartmut, Ghia, Piera Luisa, Giammarchi, Marco, Giller, Maria, Gitto, Javier, Glaser, Christian, Glass, Henry, Albarracin, Flavia Gomez, Berisso, Mariano Gómez, Vitale, Primo F. Gómez, Gonçalves, Patrícia, Gonzalez, Javier G., Gookin, Ben, Gorgi, Alessio, Gorham, Peter, Gouffon, Philippe, Grebe, Stefan, Griffith, Nathan, Grillo, Aurelio, Grubb, Trent D., Guardincerri, Yann, Guarino, Fausto, Guedes, Germano, Hansen, Patricia, Harari, Diego, Harrison, Thomas A., Harton, John, Haungs, Andreas, Hebbeker, Thomas, Heck, Dieter, Herve, Alexander E., Hill, Gary C., Hojvat, Carlos, Hollon, Nicholas, Holt, Ewa, Homola, Piotr, Hörandel, Joerg, Horvath, Pavel, Hrabovský, Miroslav, Huber, Daniel, Huege, Tim, Insolia, Antonio, Isar, Paula Gina, Jansen, Stefan, Jarne, Cecilia, Josebachuili, Mariela, Kadija, Krešo, Kambeitz, Olga, Kampert, Karl Heinz, Karhan, Pavel, Kasper, Peter, Katkov, Igor, Kégl, Balazs, Keilhauer, Bianca, Keivani, Azadeh, Kemp, Ernesto, Kieckhafer, Roger, Klages, Hans, Kleifges, Matthias, Kleinfeller, Jonny, Knapp, Johannes, Krause, Raphael, Krohm, Nicole, Krömer, Oliver, Kruppke-Hansen, Daniel, Kuempel, Daniel, Kunka, Norbert, La Rosa, Giovanni, LaHurd, Danielle, Latronico, Luca, Lauer, Robert, Lauscher, Markus, Lautridou, Pascal, Coz, Sandra Le, Leão, Milton, Lebrun, Paul, Lebrun, Didier, de Oliveira, Marcelo Augusto Leigui, Letessier-Selvon, Antoine, Lhenry-Yvon, Isabelle, Link, Katrin, López, Rebeca, Agüera, Angeles Lopez, Louedec, Karim, Bahilo, Julio Lozano, Lu, Lu, Lucero, Agustin, Ludwig, Marianne, Lyberis, Haris, Maccarone, Maria Concetta, Malacari, Max, Maldera, Simone, Maller, Jennifer, Mandat, Dusan, Mantsch, Paul, Mariazzi, Analisa, Marin, Vincent, Mariş, Ioana, Falcon, Hugo R. Marquez, Marsella, Giovanni, Martello, Daniele, Martin, Lilian, Martinez, Humberto, Bravo, Oscar Martínez, Martraire, Diane, Meza, Jimmy Masías, Mathes, Hermann-Josef, Matthews, James, Matthews, John A. J., Matthiae, Giorgio, Maurel, Detlef, Maurizio, Daniela, Mayotte, Eric, Mazur, Peter, Medina, Carlos, Medina-Tanco, Gustavo, Melissas, Maximilien, Melo, Diego, Menichetti, Ezio, Menshikov, Alexander, Messina, Stefano, Meyhandan, Rishi, Mićanović, Saša, Micheletti, Maria Isabel, Middendorf, Lukas, Minaya, Ignacio A., Miramonti, Lino, Mitrica, Bogdan, Molina-Bueno, Laura, Mollerach, Silvia, Monasor, Maria, Ragaigne, Delphine Monnier, Montanet, François, Morales, Benjamin, Morello, Carlo, Moreno, Juan Cruz, Mostafá, Miguel, Moura, Celio A., Muller, Marcio Aparecido, Müller, Gero, Münchmeyer, Moritz, Mussa, Roberto, Navarra, Gianni, Navarro, Jose Luis, Navas, Sergio, Necesal, Petr, Nellen, Lukas, Nelles, Anna, Neuser, Jens, Nhung, Pham Thi Tuyet, Niechciol, Marcus, Niemietz, Lukas, Niggemann, Tim, Nitz, Dave, Nosek, Dalibor, Nožka, Libor, Oehlschläger, Juergen, Olinto, Angela, Oliveira, Micael, Ortiz, Montserrat, Pacheco, Noelia, Selmi-Dei, Daniel Pakk, Palatka, Miroslav, Pallotta, Juan, Palmieri, Nunzia, Parente, Gonzalo, Parra, Alejandra, Pastor, Sergio, Paul, Thomas, Pech, Miroslav, Pękala, Jan, Pelayo, Rodrigo, Pepe, Iuri, Perrone, Lorenzo, Pesce, Roberto, Petermann, Emily, Petrera, Sergio, Petrolini, Alessandro, Petrov, Yevgeniy, Piegaia, Ricardo, Pierog, Tanguy, Pieroni, Pablo, Pimenta, Mário, Pirronello, Valerio, Platino, Manuel, Plum, Matthias, Pontz, Michael, Porcelli, Alessio, Preda, Titi, Privitera, Paolo, Prouza, Michael, Quel, Eduardo J, Querchfeld, Sven, Quinn, Sean, Rautenberg, Julian, Ravel, Olivier, Ravignani, Diego, Revenu, Benoît, Ridky, Jan, Riggi, Simone, Risse, Markus, Ristori, Pablo, Rivera, Hugo M., Rizi, Vincenzo, Roberts, Jonathan, de Carvalho, Washington Rodrigues, Cabo, Iago Rodriguez, Fernandez, Gonzalo Rodriguez, Martino, Julio Rodriguez, Rojo, Jorge Rubén Rodriguez, Rodríguez-Frías, Maria Dolores, Ros, Germán, Rosado, Jaime, Rossler, Tomas, Roth, Markus, Rouillé-d'Orfeuil, Benjamin, Roulet, Esteban, Rovero, Adrian, Rühle, Christoph, Saffi, Steven J., Saftoiu, Alexandra, Salamida, Francesco, Salazar, Humberto, Greus, Francisco Salesa, Salina, Gaetano, Sánchez, Federico, Sanchez-Lucas, Patricia, Santo, Catarina E., Santos, Eva, Santos, Edivaldo Moura, Sarazin, Fred, Sarkar, Biswaijt, Sarmento, Raul, Sato, Ricardo, Scharf, Nils, Scherini, Viviana, Schieler, Harald, Schiffer, Peter, Schmidt, Adrian, Scholten, Olaf, Schoorlemmer, Harm, Schovánek, Petr, Schröder, Frank G., Schulz, Alexander, Schulz, Johannes, Sciutto, Sergio, Scuderi, Mario, Segreto, Alberto, Settimo, Mariangela, Shadkam, Amir, Shellard, Ronald C., Sidelnik, Iván, Sigl, Guenter, Sima, Octavian, Śmiałkowski, Andrzej, Šmída, Radomir, Snow, Gregory, Sommers, Paul, Sorokin, J., Spinka, Hal, Squartini, Ruben, Srivastava, Yogendra N., Stanič, Samo, Stapleton, James, Stasielak, Jaroslaw, Stephan, Maurice, Straub, Marcel, Stutz, Anne, Suarez, Federico, Suomijärvi, Tiina, Supanitsky, A. Daniel, Šuša, Tatjana, Sutherland, Michael, Swain, John, Szadkowski, Zbigniew, Szuba, Marek, Tapia, Alex, Tartare, Mathieu, Taşcău, Oana, Thao, Nguyen Thi, Tiffenberg, Javier, Timmermans, Charles, Tkaczyk, Wieslaw, Peixoto, Carlos J. Todero, Toma, Gabriel, Tomankova, Lenka, Tomé, Bernardo, Tonachini, Aurelio, Elipe, Guillermo Torralba, Machado, Diego Torres, Travnicek, Petr, Tridapalli, Diogo, Trovato, Enrica, Tueros, Matias, Ulrich, Ralf, Unger, Michael, Galicia, Jose F. Valdés, Valiño, Ines, Valore, Laura, van Aar, Guus, Berg, Ad M. van den, van Velzen, Sjoert, van Vliet, Arjen, Varela, Enrique, Cárdenas, Bernardo Vargas, Varner, Gary, Vázquez, Jose R., Vázquez, Ricardo, Veberič, Darko, Verzi, Valerio, Vicha, Jakub, Videla, Mariela, Villaseñor, Luis, Wahlberg, Hernan, Wahrlich, Philip, Wainberg, Oscar, Walz, David, Watson, Alan, Weber, Marc, Weidenhaupt, Klaus, Weindl, Andreas, Werner, Felix, Westerhoff, Stefan, Whelan, Ben J., Widom, Allan, Wieczorek, Grzegorz, Wiencke, Lawrence, Wilczyńska, Barbara, Wilczyński, Henryk, Will, Martin, Williams, Christopher, Winchen, Tobias, Wundheiler, Brian, Wykes, Sarka, Yamamoto, Tokonatsu, Yapici, Tolga, Younk, Patrick, Yuan, Guofeng, Yushkov, Alexey, Zamorano, Bruno, Zarza, Gabriel, Zas, Enrique, Zavrtanik, Danilo, Zavrtanik, Marko, Zaw, Ingyin, Zepeda, Arnulfo, Zhou, Jing, Zhu, Yue, Silva, Marcelo Zimbres, and Ziolkowski, Michael
Subjects: Astrophysics - High Energy Astrophysical Phenomena
Abstract: Contributions of the Pierre Auger Collaboration to the 33rd International Cosmic Ray Conference, Rio de Janeiro, Brazil, July 2013, Comment: Contributions to the 33rd International Cosmic Ray Conference, Rio de Janeiro, Brazil, July 2013
Published: 2013

9. Performance and systematic uncertainties of CTA-North in conditions of reduced atmospheric transmission

Author: Mario Pecimotika, Dominis Prester, Dijana, Hrupec, Dario, Mićanović, Saša, Pavletić, Lovro, and Sitarek, Julian
Subjects: High Energy Astrophysical Phenomena (astro-ph.HE), Cherenkov Telescope Array, clouds, gamma ray detectors, gamma ray experiments, FOS: Physical sciences, Astrophysics - Instrumentation and Methods for Astrophysics, Astrophysics - High Energy Astrophysical Phenomena, Instrumentation and Methods for Astrophysics (astro-ph.IM)
Abstract: The Cherenkov Telescope Array (CTA) is the next-generation stereoscopic system of Imaging Atmospheric Cherenkov Telescopes (IACTs). In IACTs, the atmosphere is used as a calorimeter to measure the energy of extensive air showers induced by cosmic gamma rays, which brings along a series of constraints on the precision to which energy can be reconstructed. The presence of clouds during observations can severely affect Cherenkov light yield, contributing to the systematic uncertainty in energy scale calibration. To minimize these systematic uncertainties, a calibration of telescopes is of great importance. For this purpose, the influence of cloud transmission and altitude on CTA-N performance degradation was investigated using detailed Monte Carlo simulations for the case where no action is taken to correct for the effects of clouds. Variations of instrument response functions in the presence of clouds are presented. In the presence of clouds with low transmission ($\leq$ 80%) the energy resolution is aggravated by 30% at energies below 1 TeV, and by 10% at higher energies. For higher transmissions, the energy resolution is worse by less than 10% in the whole energy range. The angular resolution varies up to 10% depending both on the transmission and altitude of the cloud. The sensitivity of the array is most severely reduced at lower energies, even by 60% at 40 GeV, depending on the clouds' properties. A simple semi-analytical model of sensitivity degradation has been introduced to summarize the influence of clouds on sensitivity and provide useful scaling relations.
Published: 2023
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10. Elastic LIDAR Monitoring of the Night-sky Brightness over Roque de los Muchachos Observatory

Author: Pavletić, Lovro, primary, Gaug, Markus, additional, Fruck, Christian, additional, Hahn, Alexander, additional, Acciari, Victor, additional, Besenrieder, Jürgen, additional, Prester, Dijana Dominis, additional, Dorner, Daniela, additional, Fink, David, additional, Font, Lluís, additional, Mićanović, Saša, additional, Mirzoyan, Razmik, additional, Müller, Dominik, additional, Schmuckermaier, Felix, additional, and Will, Martin, additional
Published: 2022
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11. Correcting MAGIC Telescope data taken under non-optimal atmospheric conditions with an elastic LIDAR

Author: Schmuckermaier, Felix, primary, Gaug, Markus, additional, Fruck, Christian, additional, Hahn, Alexander, additional, Acciari, Victor, additional, Besenrieder, Jürgen, additional, Prester, Dijana Dominis, additional, Dorner, Daniela, additional, Fink, David, additional, Font, Lluís, additional, Mićanović, Saša, additional, Mirzoyan, Razmik, additional, Müller, Dominik, additional, Pavletić, Lovro, additional, and Will, Martin, additional
Published: 2022
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12. Seven years of quasi-continuous LIDAR data

Author: Gaug, Markus, primary, Hahn, Alexander, additional, Acciari, Victor, additional, Besenrieder, Jürgen, additional, Prester, Dijana Dominis, additional, Dorner, Daniela, additional, Fink, David, additional, Font, Lluís, additional, Fruck, Christian, additional, Mićanović, Saša, additional, Mirzoyan, Razmik, additional, Pavletić, Lovro, additional, Schmuckermaier, Felix, additional, and Will, Martin, additional
Published: 2022
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13. The influence of reduced atmospheric transmission on the CTA-North performance

Author: Pecimotika, Mario, primary, Prester, Dijana Dominis, additional, Hrupec, Dario, additional, Mićanović, Saša, additional, Pavletić, Lovro, additional, and Sitarek, Julian, additional
Published: 2022
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14. Characterizing the aerosol atmosphere above the Observatorio del Roque de los Muchachos by analysing seven years of data taken with an GaAsP HPD-readout, absolutely calibrated elastic LIDAR

Author: Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Max Planck Society, Croatian Science Foundation, University of Rijeka, Fruck, Christian, Gaug, Markus, Hahn, Alexander, Acciari, Victor, Besenrieder, Jürgen, Dominis Prester, Dijana, Dorner, Daniela, Fink, David, Font, Lluís, Mićanović, Saša, Mirzoyan, Razmik, Müller, Dominik, Pavletić, Lovro, Schmuckermaier, Felix, Will, Martin, Ministerio de Ciencia, Innovación y Universidades (España), Agencia Estatal de Investigación (España), Max Planck Society, Croatian Science Foundation, University of Rijeka, Fruck, Christian, Gaug, Markus, Hahn, Alexander, Acciari, Victor, Besenrieder, Jürgen, Dominis Prester, Dijana, Dorner, Daniela, Fink, David, Font, Lluís, Mićanović, Saša, Mirzoyan, Razmik, Müller, Dominik, Pavletić, Lovro, Schmuckermaier, Felix, and Will, Martin
Abstract: We present a new elastic LIDAR concept, based on a bi-axially mounted Nd:YAG laser and a telescope with HPD readout, combined with fast FADC signal digitization and offline pulse analysis. The LIDAR return signals have been extensively quality checked and absolutely calibrated. We analyse seven years of quasi-continuous LIDAR data taken during those nights when the MAGIC telescopes were operating. Characterization of the nocturnal ground layer yields zenith and azimuth angle dependent aerosol extinction scaleheights for clear nights. We derive aerosol transmission statistics for light emitted from various altitudes throughout the year and separated by seasons. We find further seasonal dependencies of cloud base and top altitudes, but none for the LIDAR ratios of clouds. Finally, the night sky background light is characterized using the LIDAR photon backgrounds.
Published: 2022

15. Characterizing the aerosol atmosphere above the Observatorio del Roque de los Muchachos by analysing seven years of data taken with an GaAsP HPD-readout, absolutely calibrated elastic LIDAR

Author: Fruck, Christian, primary, Gaug, Markus, additional, Hahn, Alexander, additional, Acciari, Victor, additional, Besenrieder, Jürgen, additional, Dominis Prester, Dijana, additional, Dorner, Daniela, additional, Fink, David, additional, Font, Lluís, additional, Mićanović, Saša, additional, Mirzoyan, Razmik, additional, Müller, Dominik, additional, Pavletić, Lovro, additional, Schmuckermaier, Felix, additional, and Will, Martin, additional
Published: 2022
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16. Correction procedures for gamma-ray observations with Cherenkov telescopes under cloud presence using dedicated Monte Carlo simulations or direct image correction

Author: Sitarek, Julian, Dominis Prester, Dijana, Hrupec, Dario, Mićanović, Saša, Pavletić, Lovro, Pecimotika, Mario, Sobczyńska, Dorota, and Żywucka-Hejzner, Natalia
Subjects: Cherenkov telescope, Monte Carlo simulations, image correction
Abstract: Part of the observations performed with the Cherenkov telescopes in the very-high-energy gamma-ray range above 100 GeV is affected by the presence of clouds. Such observations result in modified collection area, biased energy resolution and worse shower direction reconstruction. Thus, if the effect of the absorption of Cherenkov light in the cloud is not taken into account, increased systematic uncertainties of the measurement have to be considered. In this contribution we present the studies of two complementary methods for such a correction. In the first method we use a dedicated Monte Carlo (MC) simulation to fully take into account the effect of the clouds. In the second method we apply a geometrical model correction to the images in order to correct the bulk of the effect without generation of time- consuming MC simulations.
Published: 2022

17. Performance of the Cherenkov Telescope Array in the presence of clouds

Author: Cherenkov Telescope Array Consortium, Pecimotika, Mario, Adamczyk, Katarzyna, Dominis Prester, Dijana, Gueta, Orel, Hrupec, Dario, Maier, Gernot, Mićanović, Saša, Pavletić, Lovro, Sitarek, Julian, Sobczyńska, Dorota, Szanecki, Michał, Abdalla, Hassan, Abe, H., Abe, S., Abusleme, Ángel, Acero, Fabio, Acharyya, Atreya, Acín Portella, V., Ackley, Kendall, Adam, R., Arbet-Engels, Axel, Biland, Adrian, Mitchell, Alison M.W., and Neise, Dominik
Subjects: Cosmic rays, Cosmology, Gamma rays, Intelligent systems, Light transmission, Telescopes, Atmospheric conditions, Atmospheric transmissions, Cloud base, Gamma-ray astronomy, Ground based observatories, Very high energies
Abstract: The Cherenkov Telescope Array (CTA) is the future ground-based observatory for gamma-ray astronomy at very high energies. The atmosphere is an integral part of every Cherenkov telescope. Different atmospheric conditions, such as clouds, can reduce the fraction of Cherenkov photons produced in air showers that reach ground-based telescopes, which may affect the performance. Decreased sensitivity of the telescopes may lead to misconstructed energies and spectra. This study presents the impact of various atmospheric conditions on CTA performance. The atmospheric transmission in a cloudy atmosphere in the wavelength range from 203 nm to 1000 nm was simulated for different cloud bases and different optical depths using the MODerate resolution atmospheric TRANsmission (MODTRAN) code. MODTRAN output files were used as inputs for generic Monte Carlo simulations. The analysis was performed using the MAGIC Analysis and Reconstruction Software (MARS) adapted for CTA. As expected, the effects of clouds are most evident at low energies, near the energy threshold. Even in the presence of dense clouds, high-energy gamma rays may still trigger the telescopes if the first interaction occurs lower in the atmosphere, below the cloud base. A method to analyze very high-energy data obtained in the presence of clouds is presented. The systematic uncertainties of the method are evaluated. These studies help to gain more precise knowledge about the CTA response to cloudy conditions and give insights on how to proceed with data obtained in such conditions. This may prove crucial for alert-based observations and time-critical studies of transient phenomena., PoS: Proceedings of Science, 395, ISSN:1824-8039, Proceedings of 37th International Cosmic Ray Conference
Published: 2022
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18. Multiwavelength variability and correlation studies of Mrk421 during historically low X-ray and γ-ray activity in 2015–2016

Author: Banerjee, Biswajit, primary, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Baack, Dominik, additional, Babić, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra González, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Berti, Alessio, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bošnjak, Željka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinović, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jimenez-Martinez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, López-Coto, Rubén, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martínez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Nava, Lara, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Noda, Koji, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel C., additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Temnikov, Petar, additional, Terzić, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, Zarić, Darko, additional, Balbo, Matteo, additional, Bretz, Thomas, additional, Buss, Jens, additional, Eisenberger, Laura, additional, Hildebrand, Dorothee, additional, Iotov, Roman, additional, Kalenski, Adelina, additional, Mitchell, Alison, additional, Neise, Dominik, additional, Noethe, Maximilian, additional, Paravac, Aleksander, additional, Sliusar, Vitalii, additional, Walter, Roland, additional, Valverde, J., additional, Horan, D., additional, Giroletti, M., additional, Perri, M., additional, Verrecchia, F., additional, Leto, C., additional, C. Sadun, A., additional, W. Moody, J., additional, Joner, M., additional, P. Marscher, A., additional, G. Jorstad, S., additional, Lähteenmäki, A., additional, ~Tornikoski, M., additional, Ramakrishnan, V., additional, Järvelä, E., additional, J. C. Vera, R., additional, Righini, S., additional, and Y. Lien, A., additional
Published: 2021
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19. Observation of a relatively low luminosity long duration GRB 201015A by the MAGIC telescopes

Author: Suda, Yusuke, primary, Artero, Manuel, additional, Asano, Katsuaki, additional, Berti, Alessio, additional, Nava, Lara, additional, Noda, Koji, additional, Terauchi, Kenta, additional, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Baack, Dominik, additional, Babic, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra Gonzalez, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bosnjak, Zeljka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinovic, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jiménez Martínez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, Lopez-Coto, Ruben, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martinez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Temnikov, Petar, additional, Terzic, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo Francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, and Zarić, Darko, additional
Published: 2021
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20. Camera Calibration of the CTA-LST prototype

Author: Kobayashi, Yukiho, primary, Okumura, Akira, additional, Cassol, Franca, additional, Katagiri, Hideaki, additional, Sitarek, Julian, additional, Gliwny, Pawel, additional, Nozaki, Seiya, additional, Abe, Hyuga, additional, Aguasca, Arnau, additional, Agudo, Ivan, additional, Antonelli, Lucio Angelo, additional, Aramo, Carla, additional, Armstrong, Thomas, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Ashkar, Halim, additional, Aubert, Pierre, additional, Baktash, Ali, additional, Bamba, Aya, additional, Baquero Larriva, Andres, additional, Baroncelli, Leonardo, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra González, Josefa, additional, Bernardos, Mabel, additional, Berti, Alessio, additional, Biederbeck, Noah, additional, Bigongiari, Ciro, additional, Blanch, Oscar, additional, Bonnoli, Giacomo, additional, Bordas, Pol, additional, Bose, Debanjan, additional, Bulgarelli, Andrea, additional, Burelli, Irene, additional, Buscemi, Mario, additional, Cardillo, Martina, additional, Caroff, Sami, additional, Carosi, Alessandro, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Cheng, Ks, additional, Chikawa, Michiyuki, additional, Chytka, Ladislav, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Costantini, Heide, additional, Dalchenko, Mykhailo, additional, De Angelis, Alessandro, additional, de Bony de Lavergne, Mathieu, additional, Deleglise, Guillaume, additional, Delgado, Carlos, additional, Delgado Mengual, Jordi, additional, Della Volpe, Domenico, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Díaz, Carlos, additional, Dominik, Rune Michael, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsässer, Dominik, additional, Emery, Gabriel, additional, Escudero, Juan, additional, Fiasson, Armand, additional, Foffano, Luca, additional, Fonseca, Maria Victoria, additional, Freixas Coromina, Lluis, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, Garcia, Enrique, additional, Garcia López, Ramon, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Godinovic, Nikola, additional, Green, David, additional, Grespan, Pietro, additional, Gunji, Shuichi, additional, Hackfeld, Jonas, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Hassan, Tarek, additional, Hayashi, Kohei, additional, Heckmann, Lea, additional, Heller, Matthieu, additional, Herrera Llorente, Javier, additional, Hirotani, Kouichi, additional, Hoffmann, Dirk, additional, Horns, Dieter, additional, Houles, Julien, additional, Hrabovsky, Miroslav, additional, Hrupec, Dario, additional, Hui, David, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Inome, Yusuke, additional, Iori, Maurizio, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jacquemont, Mikael, additional, Jimenez-Martinez, Irene, additional, Jouvin, Léa, additional, Jurysek, Jakub, additional, Kagaya, Mika, additional, Karas, Vladimir, additional, Kataoka, Jun, additional, Kerszberg, Daniel, additional, Kong, Albert, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamanna, Giovanni, additional, Lamastra, Alessandra, additional, Le Flour, Thierry, additional, Longo, Francesco, additional, López-Coto, Rubén, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Luque-Escamilla, Pedro L., additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mandat, Dusan, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Mariotti, Mosè, additional, Marquez, Patricia, additional, Marsella, Giovanni, additional, Martí, Josep, additional, Martinez, Oibar, additional, Martínez, Gustavo, additional, Martínez, Manel, additional, Marusevec, Petra, additional, Mas, Alvaro, additional, Maurin, Gilles, additional, Mazin, Daniel, additional, Mestre Guillen, Enrique, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Miranda, Luis David Medina, additional, Mirzoyan, Razmik, additional, Mizuno, Tsunefumi, additional, Molina, Edgar, additional, Montaruli, Teresa, additional, Monteiro, Inocencio, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moretti, Elena, additional, Morselli, Aldo, additional, Mrakovcic, Karlo, additional, Murase, Kohta, additional, Nagai, Andrii, additional, Nakamori, Takeshi, additional, Nickel, Lukas, additional, Nieto, Daniel, additional, Nievas, Mireia, additional, Nishijima, Kyoshi, additional, Noda, Koji, additional, Nosek, Dalibor, additional, Nöthe, Maximilian, additional, Ohishi, Michiko, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Okazaki, Nao, additional, Orito, Reiko, additional, Otero-Santos, Jorge, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep Maria, additional, Pavletić, Lovro, additional, Pech, Miroslav, additional, Pecimotika, Mario, additional, Poireau, Vincent, additional, Polo, Miguel, additional, Prandini, Elisa, additional, Prast, Julie, additional, Priyadarshi, Chaitanya, additional, Prouza, Michael, additional, Rando, Riccardo, additional, Rhode, Wolgang, additional, Ribó, Marc, additional, Rizi, Vincenzo, additional, Rugliancich, Andrea, additional, Ruiz, Jose Enrique, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Sanchez, David, additional, Šarić, Toni, additional, Saturni, Francesco Gabriele, additional, Scherpenberg, Juliane, additional, Schleicher, Bernd, additional, Schubert, Jan Lukas, additional, Schüssler, Fabian, additional, Schweizer, Thomas, additional, Seglar Arroyo, Monica, additional, Shellard, Ronald Cintra, additional, Sliusar, Vitalii, additional, Spolon, Alessia, additional, Strišković, Jelena, additional, Strzys, Marcel C., additional, Suda, Yusuke, additional, Sunada, Yuji, additional, Tajima, Hiroyasu, additional, Takahashi, Mitsunari, additional, Takahashi, Hiromitsu, additional, Takata, Jumpei, additional, Takeishi, Ryuji, additional, Tam, P. Thomas, additional, Tanaka, Shuta, additional, Tateishi, Dai, additional, Tejedor, Luis Ángel, additional, Temnikov, Petar, additional, Terada, Yukikatsu, additional, Terzic, Tomislav, additional, Teshima, Masahiro, additional, Tluczykont, Martin, additional, Tokanai, Fuyuki, additional, Torres, Diego F., additional, Travnicek, Petr, additional, Truzzi, Stefano, additional, Vacula, Martin, additional, VAZQUEZ ACOSTA, Monica, additional, VERGUILOV, Vassil, additional, Verna, Gaia, additional, Viale, Ilaria, additional, Vigorito, Carlo francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Vuillaume, Thomas, additional, Walter, Roland, additional, Will, Martin, additional, Yamamoto, Tokonatsu, additional, Yamazaki, Ryo, additional, Yoshida, Tatsuo, additional, Yoshikoshi, Takanori, additional, and Zarić, Darko, additional
Published: 2021
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21. MAGIC and H.E.S.S. detect VHE gamma rays from the blazar OT081 for the first time: a deep multiwavelength study

Author: Manganaro, Marina, primary, Seglar-Arroyo, Monica, additional, Becerra-González, Josefa, additional, Sanchez, David, additional, Cerruti, Matteo, additional, Tavecchio, Fabrizio, additional, Fallah-Ramazani, Vandad, additional, Agudo, Ivan, additional, Ciprini, Stefano, additional, Filippenko, Alexei Vladimir, additional, Esteban-Gutierrez, A., additional, Hovatta, Talvikki, additional, Jermak, Helen, additional, Jorstad, Svetlana G., additional, Kopatskaya, Evgenia N., additional, Larionov, Valeri M., additional, Larionova, L. V., additional, Lähteenmäki, Anne, additional, Marscher, Alan, additional, Morozova, D. A., additional, Pahljina, Marko, additional, Tornikoski, Merja, additional, Troitskaya, Yuliya, additional, Troitsky, I., additional, Verrecchia, Francesco, additional, Xiao, H. B., additional, Weaver, Z. R., additional, Zheng, Weikang, additional, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Baack, Dominik, additional, Babic, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra Gonzalez, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Berti, Alessio, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bosnjak, Zeljka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinovic, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jiménez Martínez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, Lopez-Coto, Ruben, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martinez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Nava, Lara, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Noda, Koji, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel C., additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Temnikov, Petar, additional, Terzic, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, and Zarić, Darko, additional
Published: 2021
Full Text: View/download PDF

22. Protons Spectrum from MAGIC Telescopes data

Author: Temnikov, Petar, primary, VERGUILOV, Vassil, additional, Maneva, Galina, additional, Mirzoyan, Razmik, additional, Baack, Dominik, additional, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Babić, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra González, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Berti, Alessio, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bošnjak, Željka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinović, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jiménez Martínez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, López-Coto, Rubén, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martínez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Nava, Lara, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Noda, Koji, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel, additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Terzić, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, Vigorito, Carlo Francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, and Zarić, Darko, additional
Published: 2021
Full Text: View/download PDF

23. MAGIC observations of the nearby short GRB 160821B

Author: Noda, Koji, primary, Nava, Lara, additional, Inoue, Susumu, additional, Fukami, Satoshi, additional, Palatiello, Michele, additional, Berti, Alessio, additional, Longo, Francesco, additional, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Baack, Dominik, additional, Babic, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra Gonzalez, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bosnjak, Zeljka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinovic, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jiménez Martínez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Lopez-Coto, Ruben, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martinez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel, additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Temnikov, Petar, additional, Terzic, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo Francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, and Zarić, Darko, additional
Published: 2021
Full Text: View/download PDF

24. Recent MAGIC results on Galactic binaries

Author: Molina, Edgar, primary, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Baack, Dominik, additional, Babić, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra González, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Berti, Alessio, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bošnjak, Željka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinović, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jimenez-Martinez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, López-Coto, Rubén, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martínez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Nava, Lara, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Noda, Koji, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Satalecka, Konstancja, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel C., additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Temnikov, Petar, additional, Terzić, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, and Zarić, Darko, additional
Published: 2021
Full Text: View/download PDF

25. Performance of the Cherenkov Telescope Array in the presence of clouds

Author: Pecimotika, Mario, primary, Adamczykc, Katarzyna, additional, Dominis Prester, Dijana, additional, Gueta, Orel, additional, Hrupec, Dario, additional, Maier, Gernot, additional, Mićanović, Saša, additional, Pavletić, Lovro, additional, Sitarek, Julian, additional, Sobczyńska, Dorota, additional, and Szanecki, Michał, additional
Published: 2021
Full Text: View/download PDF

26. Multi-epoch monitoring of TXS 0506+056 with MAGIC and MWL partners

Author: Satalecka, Konstancja, primary, Acciari, Victor A., additional, Ansoldi, Stefano, additional, Antonelli, Lucio Angelo, additional, Arbet Engels, Axel, additional, Artero, Manuel, additional, Asano, Katsuaki, additional, Baack, Dominik, additional, Babic, Ana, additional, Baquero, Andrés, additional, Barres de Almeida, Ulisses, additional, Barrio, Juan Abel, additional, Batković, Ivana, additional, Becerra Gonzalez, Josefa, additional, Bednarek, Wlodek, additional, Bellizzi, Lorenzo, additional, Bernardini, Elisa, additional, Bernardos, Maria-Isabel, additional, Berti, Alessio, additional, Besenrieder, Jürgen, additional, Bhattacharyya, Wrijupan, additional, Bigongiari, Ciro, additional, Biland, Adrian, additional, Blanch, Oscar, additional, Bökenkamp, Hendrik, additional, Bonnoli, Giacomo, additional, Bosnjak, Zeljka, additional, Busetto, Giovanni, additional, Carosi, Roberto, additional, Ceribella, Giovanni, additional, Cerruti, Matteo, additional, Chai, Yating, additional, Chilingarian, Ashot Agassi, additional, Cikota, Stefan, additional, Colak, Sidika Merve, additional, Colombo, Eduardo, additional, Contreras, Jose Luis, additional, Cortina, Juan, additional, Covino, Stefano, additional, D'Amico, Giacomo, additional, D'Elia, Valerio, additional, Da Vela, Paolo, additional, Dazzi, Francesco, additional, De Angelis, Alessandro, additional, De Lotto, Barbara, additional, Delfino, Manuel, additional, Delgado, Jordi, additional, Delgado Mendez, Carlos, additional, Depaoli, Davide, additional, Di Pierro, Federico, additional, Di Venere, Leonardo, additional, Do Souto Espiñeira, Elia, additional, Dominis Prester, Dijana, additional, Donini, Alice, additional, Dorner, Daniela, additional, Doro, Michele, additional, Elsaesser, Dominik, additional, Fallah Ramazani, Vandad, additional, Fattorini, Alicia, additional, Fonseca, Maria Victoria, additional, Font, Lluis, additional, Fruck, Christian, additional, Fukami, Satoshi, additional, Fukazawa, Yasushi, additional, García López, Ramon J., additional, Garczarczyk, Markus, additional, Gasparyan, Sargis, additional, Gaug, Markus, additional, Giglietto, Nicola, additional, Giordano, Francesco, additional, Gliwny, Pawel, additional, Godinovic, Nikola, additional, Green, David, additional, Green, Jarred Gershon, additional, Hadasch, Daniela, additional, Hahn, Alexander, additional, Heckmann, Lea, additional, Herrera, Javier, additional, Hoang, John, additional, Hrupec, Dario, additional, Hütten, Moritz, additional, Inada, Tomohiro, additional, Ishio, Kazuma, additional, Iwamura, Yuki, additional, Jiménez Martínez, Irene, additional, Jormanainen, Jenni, additional, Jouvin, Léa, additional, Karjalainen, Marie, additional, Kerszberg, Daniel, additional, Kobayashi, Yukiho, additional, Kubo, Hidetoshi, additional, Kushida, Junko, additional, Lamastra, Alessandra, additional, LELAS, Damir, additional, Leone, Francesco, additional, Lindfors, Elina, additional, Linhoff, Lena, additional, Lombardi, Saverio, additional, Longo, Francesco, additional, Lopez-Coto, Ruben, additional, López-Moya, Marcos, additional, López-Oramas, Alicia, additional, Loporchio, Serena, additional, Machado de Oliveira Fraga, Bernardo, additional, Maggio, Camilla, additional, Majumdar, Pratik, additional, MAKARIEV, Martin, additional, Mallamaci, Manuela, additional, Maneva, Galina, additional, Manganaro, Marina, additional, Mannheim, Karl, additional, Maraschi, Laura, additional, Mariotti, Mosè, additional, Martinez, Manel, additional, Mazin, Daniel, additional, Menchiari, Stefano, additional, Mender, Simone, additional, Mićanović, Saša, additional, Miceli, Davide, additional, Miener, Tjark, additional, Miranda, Jose Miguel, additional, Mirzoyan, Razmik, additional, Molina, Edgar, additional, Moralejo, Abelardo, additional, Morcuende, Daniel, additional, Moreno, Victoria, additional, Moretti, Elena, additional, Nakamori, Takeshi, additional, Nava, Lara, additional, Neustroev, Vitaly, additional, Nigro, Cosimo, additional, Nilsson, Kari, additional, Nishijima, Kyoshi, additional, Noda, Koji, additional, Nozaki, Seiya, additional, Ohtani, Yoshiki, additional, Oka, Tomohiko, additional, Otero-Santos, Jorge, additional, Paiano, Simona, additional, Palatiello, Michele, additional, Paneque, David, additional, Paoletti, Riccardo, additional, Paredes, Josep M., additional, Pavletić, Lovro, additional, Peñil, Pablo, additional, Persic, Massimo, additional, Pihet, Marine, additional, Prada Moroni, Pier Giorgio, additional, Prandini, Elisa, additional, Priyadarshi, Chaitanya, additional, Puljak, Ivica, additional, Rhode, Wolfgang, additional, Ribó, Marc, additional, Rico, Javier, additional, Righi, Chiara, additional, Rugliancich, Andrea, additional, Sahakyan, Narek, additional, Saito, Takayuki, additional, Sakurai, Shunsuke, additional, Saturni, Francesco Gabriele, additional, Schleicher, Bernd, additional, Schmidt, Kevin, additional, Schweizer, Thomas, additional, Sitarek, Julian, additional, Šnidarić, Iva, additional, Sobczyńska, Dorota, additional, Spolon, Alessia, additional, Stamerra, Antonio, additional, Strišković, Jelena, additional, Strom, Derek, additional, Strzys, Marcel, additional, Suda, Yusuke, additional, Surić, Tihomir, additional, Takahashi, Mitsunari, additional, Takeishi, Ryuji, additional, Tavecchio, Fabrizio, additional, Temnikov, Petar, additional, Terzic, Tomislav, additional, Teshima, Masahiro, additional, Tosti, Luca, additional, Truzzi, Stefano, additional, Tutone, Antonio, additional, Ubach, Santiago, additional, van Scherpenberg, Juliane, additional, Vanzo, Gaia, additional, VAZQUEZ ACOSTA, Monica, additional, Ventura, Sofia, additional, VERGUILOV, Vassil, additional, Vigorito, Carlo Francesco, additional, Vitale, Vincenzo, additional, Vovk, Ievgen, additional, Will, Martin, additional, Wunderlich, Carolin, additional, Yamamoto, Tokonatsu, additional, Zarić, Darko, additional, Aniello, Tommaso, additional, D'Ammando, Filippo, additional, Viale, Ilaria, additional, Hovatta, Talvikki, additional, Edwards, Philip G., additional, Kiehlmann, Sebastian, additional, Readhead, Anthony, additional, Kadler, Matthias, additional, Bach, Uwe, additional, Berge, David, additional, Buson, Sara, additional, Eppel, Florian, additional, Giroletti, Marcello, additional, Hervet, Olivier, additional, Gokus, Andrea, additional, Heßdörfer, Jonas, additional, Koyama, Shoko, additional, Kraus, Alex, additional, Krichbaum, Thomas, additional, de Menezes, Raniere, additional, Ojha, Roopesh, additional, Paraschos, Georgios, additional, Pueschel, Elisa, additional, Rösch, Florian, additional, Ros, Eduardo, additional, Sinapius, Jonas, additional, Wilms, Jörn, additional, Zacharias, Michael, additional, and Stevens, Jamie, additional
Published: 2021
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27. Detection of sub-TeV gamma-ray emission from the flaring blazar TXS 1515-273 with the MAGIC telescopes

Author: Mirzoyan, Razmik, Babić, Ana, Bošnjak, Željka, Cikota, Stefan, Dominis Prester, Dijana, Godinović, Nikola, Hrupec, Dario, Lelas, Damir, Manganaro, Marina, Mićanović, Saša, Puljak, Ivica, Surić, Tihomir, Šnidarić, Iva, Terzić, Tomislav, and Zarić, Darko
Subjects: Gamma Ray, GeV%22">>GeV, TeV, VHE, AGN, Blazar
Abstract: The MAGIC collaboration reports the first detection of very-high-energy (VHE ; E>100 GeV) gamma-ray emission from the flaring blazar TXS1515-273 (RA=15 18 03.610, Dec= -27 31 31.40, J2000.0). The object was observed with the MAGIC telescopes for 1.9 hours on 2019/02/28 under moderate moonlight in the zenith distance range 55 - 60 deg. The preliminary real-time analysis of this data shows a detection of TXS1515-273 with a statistical significance more than 5 standard deviations. The MAGIC observations were triggered by the flaring activity reported by Fermi-LAT from 2019/02/24 to 2019/02/25 (ATel#12532). Few hours before that ATel, a communication from Dave Thompson from the Fermi team alerted the MAGIC collaboration about this source. The redshift of this source is uncertain, with an upper limit z
Published: 2019

28. First time detection of a GRB at sub-TeV energies ; MAGIC detects the GRB 190114C

Author: Mirzoyan, Razmik, Babić, Ana, Bošnjak, Željka, Cikota, Stefan, Dominis Prester, Dijana, Godinović, Nikola, Hrupec, Dario, Lelas, Damir, Manganaro, Marina, Mićanović, Saša, Puljak, Ivica, Surić, Tihomir, Šnidarić, Iva, Terzić, Tomislav, Zarić, Darko, and (the MAGIC Collaboration)
Subjects: Gamma Ray, GeV%22">>GeV, TeV, VHE, Request for Observations, Gamma-Ray Burst
Abstract: The MAGIC telescopes performed a rapid follow-up observation of GRB 190114C (Gropp et al., GCN 23688 ; Tyurina et al., GCN 23690, de Ugarte Postigo et al., GCN 23692, Lipunov et al. GCN 23693, Selsing et al. GCN 23695). This observation was triggered by the Swift-BAT alert ; we started observing at about 50s after Swift T0: 20:57:03.19. The MAGIC real-time analysis shows a significance >20 sigma in the first 20 min of observations (starting at T0+50s) for energies >300GeV. The relatively high detection threshold is due to the large zenith angle of observations (>60 degrees) and the presence of partial Moon. Given the brightness of the event, MAGIC will continue the observation of GRB 190114C until it is observable tonight and also in the next days. We strongly encourage follow-up observations by other instruments. The MAGIC contact persons for these observations are R. Mirzoyan (Razmik.Mirzoyan@mpp.mpg.de) and K. Noda (nodak@icrr.u-tokyo.ac.jp). MAGIC is a system of two 17m-diameter Imaging Atmospheric Cherenkov Telescopes located at the Observatory Roque de los Muchachos on the Canary island La Palma, Spain, and designed to perform gamma-ray astronomy in the energy range from 50 GeV to greater than 50 TeV.
Published: 2019

29. MAGIC detection of an increased activity from BL Lacertae at very-high-energy gamma rays

Author: Mirzoyan, Razmik, Babić, Ana, Bošnjak, Željka, Cikota, Stefan, Dominis Prester, Dijana, Godinović, Nikola, Hrupec, Dario, Lelas, Damir, Manganaro, Marina, Mićanović, Saša, Puljak, Ivica, Surić, Tihomir, Šnidarić, Iva, Terzić, Tomislav, and Zarić, Darko.
Subjects: Gamma Ray, GeV%22">>GeV, TeV, VHE, Request for Observations, AGN, Blazar, Quasar
Abstract: The MAGIC telescopes have observed an increase in the very-high-energy (VHE ; >100 GeV) gamma-ray flux from a position compatible with the blazar BL Lacertae (RA=22h02m43.3s Dec=+42d16m40s, J2000.0, z=0.07). The preliminary analysis of 0.76 hours of MAGIC data taken on 2019/05/03 (MJD 58606.18 to 58606.20) under zenith angle range from 46 to 53 deg and dark time conditions with the atmospheric transmission of 0.85, indicates a flux larger than 0.1 of the flux from the Crab nebula above 200 GeV, and detection significance over 6 sigma. The MAGIC observations were triggered by the flaring activity at HE gamma-rays reported by Fermi-LAT (ATel #12718), and optical observations by Astronomical Observatory of the University of Siena (ATel #12722). MAGIC observations on BL Lacertae will continue during the next days and multiwavelength observations are encouraged. The MAGIC contact persons for these observations are R. Mirzoyan (Razmik.Mirzoyan@mpp.mpg.de) and D. Dominis Prester (dijana@phy.uniri.hr) MAGIC is a system of two 17m-diameter Imaging Atmospheric Cherenkov Telescopes located at the Canary island of La Palma, Spain, and designed to perform gamma-ray astronomy in the energy range from 50 GeV to greater than 50 TeV.
Published: 2019

30. MAGIC detects an unprecedented activity from the blazar 1ES 1218+304 at very high energy gamma rays

Author: Mirzoyan, Razmik, Babić, Ana, Bošnjak, Željka, Cikota, Stefan, Dominis Prester, Dijana, Godinović, Nikola, Hrupec, Dario, Lelas, Damir, Manganaro, Marina, Mićanović, Saša, Puljak, Ivica, Surić, Tihomir, Šnidarić, Iva, Terzić, Tomislav, Zarić, Darko, and (the MAGIC Collaboration)
Subjects: Gamma Ray, GeV%22">>GeV, TeV, VHE, AGN, Blazar
Abstract: The MAGIC telescopes have observed an unprecedented level of very-high-energy (VHE ; >100 GeV) gamma-ray flux from 1ES 1218+304 (12h21m21.941s, +30d10m37.11s, J2000.0). The preliminary analysis of the data from 2018/12/31 to 2019/01/02 indicates a VHE gamma-ray flux reaching the level of ~25 % of the flux from the Crab nebula above 100 GeV. Compared to the quiescent state reported by VERITAS, this implies an increase by a factor of ~4. The previous record of VHE gamma-ray flux of this source was ~20% of the flux from the Crab nebula above 100 GeV. It was measured by VERITAS on the night of 30 January 2009 (2010ApJ, 709L, 163A). 1ES 1218+304 is a high-synchrotron-peaked BL Lac object located at redshift z=0.182. It was first recognized as a VHE gamma-ray emitter by the MAGIC Collaboration in 2005 (Albert, J., 2006, ApJ, 642L, 119A). The MAGIC observations were triggered by the flaring activity in the optical R-band, measured by the KVA telescope from 2018/12/24 to 2019/01/02. The KVA data showed a flux of 2.35+/-0.05 mJy on 2019/01/02, which is the highest optical flux measurement from this source in a time span of 15 years (http://users.utu.fi/kani/1m/1ES_1218+304_jy.html). MAGIC observations on 1ES 1218+304 will continue during the next weeks and multiwavelength observations are encouraged. The MAGIC contact persons for these observations are R. Mirzoyan (Razmik.Mirzoyan@mpp.mpg.de), V. Fallah Ramazani (vafara@utu.fi) and M. Cerruti (matteo.cerruti@icc.ub.edu). MAGIC is a system of two 17m-diameter Imaging Atmospheric Cherenkov Telescopes located at the Canary island of La Palma, Spain, and designed to perform gamma-ray astronomy in the energy range from 50 GeV to greater than 50 TeV.
Published: 2019

31. MAGIC detects enhanced flux of VHE gamma rays from TXS 0506+056

Author: Mirzoyan, Razmik, Babić, Ana, Cikota, Stefan, Dominis Prester, Dijana, Godinović, Nikola, Hrupec, Dario, Lelas, Damir, Manganaro, Marina, Mićanović, Saša, Puljak, Ivica, Surić, Tihomir, Šnidarić, Iva, Terzić, Tomislav, Zarić, Darko, and (the MAGIC Collaboration)
Subjects: Gamma Ray, GeV%22">>GeV, TeV, VHE, AGN, Blazar
Abstract: We report an enhanced emission of VHE gamma-rays from the direction of the blazar TXS 0506+056 (05 09 25.96370, +05 41 35.3279 (J2000), [Lani et al., Astron. J., 139, 1695-1712 (2010)]), located 6 arcmin from the estimated direction of the high energy IceCube neutrino event IceCube-170922A (ATel #10791). On Dec 3rd 2018 the MAGIC telescopes observed this source for about 2 hours under good weather conditions. The source was detected at VHE gamma-rays above 90 GeV with a significance larger than 5 sigma. The preliminary analysis yields an estimate of the VHE gamma-ray flux above 90 GeV of ~10-15% of the flux from the Crab Nebula above the same energy threshold, and a spectral index of ~4. This flux is consistent with the emission level integrated between September 28th 2017 to October 3rd 2017, when the source was discovered at VHE gamma-rays (ATel #10817). The MAGIC telescopes will continue monitoring the VHE gamma-ray emission of TXS 0506+056. Soft-X-rays and ultraviolet ToO observations with the Neil Gehrels Swift Observatory have been approved for the next three nights (PI: Cerruti, on behalf of MAGIC), to occur within the time-window 00:00 to 04:00 UTC. NuSTAR ToO observations have also been approved (PI: Satalecka). Multi-wavelength observations (quasi)-simultaneous with MAGIC in this time-window are strongly encouraged.
Published: 2018

32. Search for anomalous Wtb couplings and flavour-changing neutral currents in t-channel single top quark production in pp collisions at sqrt(s) = 7 and 8 TeV

Author: Khachatryan, Vardan, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Kadija, Krešo, Luetić, Jelena, Mićanović, Saša, Sudić, Lucija, Morović, Srećko, Ferenček, Dinko, Đurić, Senka, and Woods, Nate
Subjects: High energy physics, Experimental particle physics, LHC, CMS, Standard Model, High Energy Physics::Experiment
Abstract: Single top quark events produced in the t channel are used to set limits on anomalous Wtb couplings and to search for top quark flavour-changing neutral current (FCNC) interactions. The data taken with the CMS detector at the LHC in proton-proton collisions at sqrt(s) = 7 and 8 TeV correspond to integrated luminosities of 5.0 and 19.7 inverse femtobarns, respectively. The analysis is performed using events with one muon and two or three jets. A Bayesian neural network technique is used to discriminate between the signal and backgrounds, which are observed to be consistent with the standard model prediction. The 95% confidence level (CL) exclusion limits on anomalous right- handed vector, and left- and right-handed tensor Wtb couplings are measured to be |f[V]^R| < 0.16, |f[T]^L| < 0.057, and -0.049 < f[T]^R < 0.048, respectively. For the FCNC couplings kappa[tug] and kappa[tcg], the 95% CL upper limits on coupling strengths are |kappa[tug]|/Lambda < 4.1E-3 TeV-1 and |kappa[tcg]|/Lambda < 1.8E-2 TeV-1, where Lambda is the scale for new physics, and correspond to upper limits on the branching fractions of 2.0E-5 and 4.1E-4 for the decays t to ug and t to cg, respectively.
Published: 2017
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33. Measurements of differential cross sections for associated production of a W boson and jets in proton-proton collisions at sqrt(s) = 8 TeV

Author: Khachatryan, Vardan, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Šćulac, Toni, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Kadija, Krešo, Luetić, Jelena, Mićanović, Saša, Sudić, Lucija, Morović, Srećko, Ferenček, Dinko, Đurić, Senka, Šuša, Tatjana, and Woods, Nate
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment, Nuclear Experiment, High energy physics, Experimental particle physics, LHC, CMS, Standard Model
Abstract: Differential cross sections for a W boson produced in association with jets are measured in a data sample of proton-proton collisions at a center-of-mass energy of 8 TeV recorded with the CMS detector and corresponding to an integrated luminosity of 19.6 inverse femtobarns. The W bosons are identified through their decay mode W to mu nu. The cross sections are reported as functions of jet multiplicity, transverse momenta, and the scalar sum of jet transverse momenta (HT) for different jet multiplicities. Distributions of the angular correlations between the jets and the muon are examined, as well as the average number of jets as a function of HT and as a function of angular variables. The measured differential cross sections are compared with tree-level and higher-order recent event generators, as well as next-to-leading-order and next-to- next-to-leading-order theoretical predictions. The agreement of the generators with the measurements builds confidence in their use for the simulation of W+jets background processes in searches for new physics at the LHC.
Published: 2017

34. Search for supersymmetry in events with one lepton and multiple jets in proton-proton collisions at sqrt(s) = 13 TeV

Author: Khachatryan, Vardan, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Šćulac, Toni, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Kadija, Krešo, Luetić, Jelena, Mićanović, Saša, Sudić, Lucija, Morović, Srećko, Ferenček, Dinko, Đurić, Senka, Šuša, Tatjana, and Woods, Nate
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, high energy physics, experimental particle physics, LHC, CMS, standard model
Abstract: A search for supersymmetry is performed in events with a single electron or muon in proton-proton collisions at a center-of-mass energy of 13 TeV. The data were recorded by the CMS experiment at the LHC and correspond to an integrated luminosity of 2.3 inverse femtobarns. Several exclusive search regions are defined based on the number of jets and b-tagged jets, the scalar sum of the jet transverse momenta, and the scalar sum of the missing transverse momentum and the transverse momentum of the lepton. The observed event yields in data are consistent with the expected backgrounds from standard model processes. The results are interpreted using two simplified models of supersymmetric particle spectra, both of which describe gluino pair production. In the first model, each gluino decays via a three-body process to top quarks and a neutralino, which is associated with the observed missing transverse momentum in the event. Gluinos with masses up to 1.6 TeV are excluded for neutralino masses below 600 GeV. In the second model, each gluino decays via a three-body process to two light quarks and a chargino, which subsequently decays to a W boson and a neutralino. The mass of the chargino is taken to be midway between the gluino and neutralino masses. In this model, gluinos with masses below 1.4 TeV are excluded for neutralino masses below 700 GeV.
Published: 2017
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35. Search for CP violation in t t-bar production and decay in proton-proton collisions at sqrt(s) = 8 TeV

Author: Khachatryan, Vardan, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Šćulac, Toni, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Kadija, Krešo, Luetić, Jelena, Mićanović, Saša, Sudić, Lucija, Morović, Srećko, Ferenček, Dinko, Đurić, Senka, Šuša, Tatjana, and Woods, Nate
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, high energy physics, experimental particle physics, LHC, CMS, standard model
Abstract: The results of a first search for CP violation in the production and decay of top quark-antiquark (t t-bar) pairs are presented. The search is based on asymmetries in T-odd, triple-product correlation observables, where T is the time- reversal operator. The analysis uses a sample of proton- proton collisions at sqrt(s) = 8 TeV collected by the CMS experiment, corresponding to an integrated luminosity of 19.7 inverse femtobarns.. Events are selected having one electron or muon and at least four jets. The T-odd observables are measured using four-momentum vectors associated with t t-bar production and decay. The measured asymmetries exhibit no evidence for CP-violating effects, consistent with the expectation from the standard model.
Published: 2017
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36. Search for dark matter and supersymmetry with a compressed mass spectrum in the vector boson fusion topology in proton-proton collisions at sqrt(s) = 8 TeV

Author: Khachatryan, Vardan, Sudić, Lucija, Godinović, Nikola, Puljak, Ivica, Starodumov, Andrey, Morović, Srećko, Lelas, Damir, Kovač, Marko, Đurić, Senka, Ferenček, Dinko, Mićanović, Saša, Brigljević, Vuko, Luetić, Jelena, Antunović, Željko, Kadija, Krešo, and Woods, Nate
Subjects: Physics, High Energy Physics::Phenomenology, High Energy Physics::Experiment, Nuclear Experiment
Abstract: A first search for pair production of dark matter candidates through vector boson fusion in proton-proton collisions at sqrt(s) = 8 TeV is performed with the CMS detector. The vector boson fusion topology enhances missing transverse momentum, providing a way to probe supersymmetry also in the case of a compressed mass spectrum. The data sample corresponds to an integrated luminosity of 18.5 inverse femtobarns recorded by the CMS experiment. The observed dijet mass spectrum is consistent with the standard model expectation. In an effective field theory, dark matter masses are explored as a function of contact interaction strength. The most stringent limit on bottom squark production with mass below 315 GeV is also reported, assuming a 5 GeV mass difference with respect to the lightest neutralino.
Published: 2017

37. Search for high-mass Z-gamma resonances in e+e-gamma and mu+mu-gamma final states in proton-proton collisions at sqrt(s) = 8 and 13 TeV

Author: Khachatryan, Vardan, Morović, Srećko, Luetić, Jelena, Đurić, Senka, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Ribeiro Cipriano, Pedro Miguel, Šćulac, Toni, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Ferenček, Dinko, Kadija, Krešo, Mićanović, Saša, Sudić, Lucija, Šuša, Tatjana, and Woods, Nate
Subjects: Physics, High energy physics, Experimental particle physics, LHC, CMS, Standard Model, High Energy Physics::Experiment
Abstract: This paper describes the search for a high-mass narrow- width scalar particle decaying into a Z boson and a photon. The analysis is performed using proton-proton collision data recorded with the CMS detector at the LHC at center-of- mass energies of 8 and 13 TeV, corresponding to integrated luminosities of 19.7 and 2.7 inverse femtobarns, respectively. The Z bosons are reconstructed from opposite-sign electron or muon pairs. No statistically significant deviation from the standard model predictions has been found in the 200-2000 GeV mass range. Upper limits at 95% confidence level have been derived on the product of the scalar particle production cross section and the branching fraction of the Z decaying into electrons or muons, which range from 280 to 20 fb for resonance masses between 200 and 2000 GeV.
Published: 2017
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38. A search for new phenomena in pp collisions at sqrt(s) = 13 TeV in final states with missing transverse momentum and at least one jet using the alphaT variable

Author: Khachatryan, Vardan, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Šćulac, Toni, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Kadija, Krešo, Luetić, Jelena, Mićanović, Saša, Sudić, Lucija, Morović, Srećko, Ferenček, Dinko, Đurić, Senka, Šuša, Tatjana, and Woods, Nate
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, high energy physics, experimental particle physics, LHC, CMS, standard model
Abstract: A search for new phenomena is performed in final states containing one or more jets and an imbalance in transverse momentum in pp collisions at a centre-of-mass energy of 13 TeV. The analysed data sample, recorded with the CMS detector at the CERN LHC, corresponds to an integrated luminosity of 2.3 inverse femtobarns. Several kinematic variables are employed to suppress the dominant background, multijet production, as well as to discriminate between other standard model and new physics processes. The search provides sensitivity to a broad range of new- physics models that yield a stable weakly interacting massive particle. The number of observed candidate events is found to agree with the expected contributions from standard model processes, and the result is interpreted in the mass parameter space of fourteen simplified supersymmetric models that assume the pair production of gluinos or squarks and a range of decay modes. For models that assume gluino pair production, masses up to 1575 and 975 GeV are excluded for gluinos and neutralinos, respectively. For models involving the pair production of top squarks and compressed mass spectra, top squark masses up to 400 GeV are excluded.
Published: 2017

39. Observation of the decay B+ to psi(2S) phi(1020) K+ in pp collisions at sqrt(s) = 8 TeV

Author: Khachatryan, Vardan, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Kadija, Krešo, Luetić, Jelena, Mićanović, Saša, Sudić, Lucija, Morović, Srećko, Ferenček, Dinko, Đurić, Senka, and Woods, Nate
Subjects: High Energy Physics::Experiment, high energy physics, experimental particle physics, LHC, CMS, standard model, Nuclear Experiment
Abstract: The decay B+ to psi(2S) phi(1020) K+ is observed for the first time using data collected from pp collisions at sqrt(s) = 8 TeV by the CMS experiment at the LHC, corresponding to an integrated luminosity of 19.6 inverse femtobarns. The branching fraction of this decay is measured, using the mode B+ to psi(2S) K+ as normalization, to be (4.0 +/- 0.4 (stat) +/- 0.6 (syst) +/- 0.2 (B)) x E-6, where the third uncertainty is from the measured branching fraction of the normalization channel.
Published: 2017
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40. Measurements of differential production cross sections for a Z boson in association with jets in pp collisions at sqrt(s) = 8 TeV

Author: Sirunyan, Albert, Sudić, Lucija, Godinović, Nikola, Puljak, Ivica, Starodumov, Andrey, Morović, Srećko, Lelas, Damir, Kovač, Marko, Durić, Senka, Ferenček, Dinko, Mićanović, Saša, Brigljević, Vuko, Luetić, Jelena, Antunović, Željko, Kadija, Krešo, Šuša, Tatjana, and Woods, Nate
Subjects: Physics, High Energy Physics::Experiment, high energy physics, experimental particle physics, LHC, CMS, standard model, Nuclear Experiment
Abstract: Cross sections for the production of a Z boson in association with jets in proton-proton collisions at a centre-of-mass energy of sqrt(s) = 8 TeV are measured using a data sample collected by the CMS experiment at the LHC corresponding to 19.6 inverse femtobarns. Differential cross sections are presented as functions of up to three observables that describe the jet kinematics and the jet activity. Correlations between the azimuthal directions and the rapidities of the jets and the Z boson are studied in detail. The predictions of a number of multileg generators with leading or next-to-leading order accuracy are compared with the measurements. The comparison shows the importance of including multi-parton contributions in the matrix elements and the improvement in the predictions when next-to-leading order terms are included.
Published: 2017

41. Measurement of the t t-bar production cross section using events in the e mu final state in pp collisions at sqrt(s) = 13 TeV

Author: Khachatryan, Vardan, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Šćulac, Toni, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Kadija, Krešo, Luetić, Jelena, Mićanović, Saša, Sudić, Lucija, Morović, Srećko, Ferenček, Dinko, Đurić, Senka, Šuša, Tatjana, and Woods, Nate
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, high energy physics, experimental particle physics, LHC, CMS, standard model, Nuclear Experiment
Abstract: The cross section of top quark-antiquark pair production in proton-proton collisions at sqrt(s) = 13 TeV is measured by the CMS experiment at the LHC, using data corresponding to an integrated luminosity of 2.2 inverse femtobarns. The measurement is performed by analyzing events in which the final state includes one electron, one muon, and two or more jets, at least one of which is identified as originating from hadronization of a b quark. The measured cross section is 815 +/- 9 (stat) +/- 38 (syst) +/- 19 (lumi) pb, in agreement with the expectation from the standard model.
Published: 2017
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42. Search for electroweak production of charginos in final states with two tau leptons in pp collisions at sqrt(s) = 8 TeV

Author: Khachatryan, Vardan, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Šćulac, Toni, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Kadija, Krešo, Luetić, Jelena, Mićanović, Saša, Sudić, Lucija, Morović, Srećko, Ferenček, Dinko, Đurić, Senka, Šuša, Tatjana, and Woods, Nate
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, High energy physics, experimental particle physics, LHC, CMS, standard model
Abstract: Results are presented from a search for the electroweak production of supersymmetric particles in pp collisions in final states with two tau leptons. The data sample corresponds to an integrated luminosity between 18.1 inverse femtobarns and 19.6 inverse femtobarns depending on the final state of tau lepton decays, at sqrt(s) = 8 TeV, collected by the CMS experiment at the LHC. The observed event yields in the signal regions are consistent with the expected standard model backgrounds. The results are interpreted using simplified models describing the pair production and decays of charginos or tau sleptons. For models describing the pair production of the lightest chargino, exclusion limits are obtained in the plane of chargino mass vs. neutralino mass sleptons, which are taken as the lightest sleptons, and the slepton masses lie midway between those of the chargino and the neutralino. Chargino masses below 420 GeV are excluded at a 95% confidence level in the limit of a massless neutralino, and for neutralino masses up to 100 GeV, chargino masses up to 325 GeV are excluded at 95% confidence level. Constraints are also placed on the cross section for pair production of tau sleptons as a function of mass, assuming a massless neutralino.
Published: 2017
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43. Search for light bosons in decays of the 125 GeV Higgs boson in proton-proton collisions at sqrt(s) = 8 TeV

Author: Khachatryan, Vardan, Mesić, Benjamin, Sudić, Lucija, Godinović, Nikola, Puljak, Ivica, Starodumov, Andrey, Morović, Srećko, Lelas, Damir, Kovač, Marko, Đurić, Senka, Ferenček, Dinko, Mićanović, Saša, Brigljević, Vuko, Luetić, Jelena, Antunović, Željko, Kadija, Krešo, Šuša, Tatjana, and Woods, Nate
Subjects: Physics, High Energy Physics::Phenomenology, High energy physics, Experimental particle physics, LHC, CMS, Standard Model, High Energy Physics::Experiment
Abstract: A search is presented for decays beyond the standard model of the 125 GeV Higgs bosons to a pair of light bosons, based on models with extended scalar sectors. Light boson masses between 5 and 62.5 GeV are probed in final states containing four tau leptons, two muons and two b quarks, or two muons and two tau leptons. The results are from data in proton-proton collisions corresponding to an integrated luminosity of 19.7 inverse femtobarns, accumulated by the CMS experiment at the LHC at a center-of-mass energy of 8 TeV. No evidence for such exotic decays is found in the data. Upper limits are set on the product of the cross section and branching fraction for several signal processes. The results are also compared to predictions of two-Higgs-doublet models, including those with an additional scalar singlet.
Published: 2017

44. Measurement of the total and differential inclusive B+ hadron cross sections in pp collisions at sqrt(s) = 13 TeV

Author: Sirunyan, Albert, Sudić, Lucija, Godinović, Nikola, Puljak, Ivica, Starodumov, Andrey, Morović, Srećko, Lelas, Damir, Kovač, Marko, Durić, Senka, Ferenček, Dinko, Mićanović, Saša, Brigljević, Vuko, Luetić, Jelena, Antunović, Željko, Kadija, Krešo, Šuša, Tatjana, and Woods, Nate
Subjects: Physics, High Energy Physics::Experiment
Abstract: The differential cross sections for inclusive production of B+ hadrons are measured as a function of the B+ transverse momentum pT[B] and rapidity y[B] in pp collisions at a centre-of-mass energy of 13 TeV, using data collected by the CMS experiment that correspond to an integrated luminosity of 49.4 inverse picobarns. The measurement uses the exclusive decay channel B+ to J/psi K+, with J/psi mesons that decay to a pair of muons. The results show a reasonable agreement with theoretical calculations within the uncertainties.
Published: 2017

45. Measurement and QCD analysis of double-differential inclusive jet cross-sections in pp collisions at sqrt(s) = 8 TeV and ratios to 2.76 and 7 TeV

Author: Khachatryan, Vardan, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Kadija, Krešo, Luetić, Jelena, Mićanović, Saša, Sudić, Lucija, Morović, Srećko, Ferenček, Dinko, Đurić, Senka, and Woods, Nate
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Experiment, high energy physics, experimental particle physics, LHC, CMS, standard model
Abstract: A measurement of the double-differential inclusive jet cross section as a function of the jet transverse momentum pT and the absolute jet rapidity abs(y) is presented. Data from LHC proton-proton collisions at sqrt(s) = 8 TeV, corresponding to an integrated luminosity of 19.7 inverse femtobarns, have been collected with the CMS detector. Jets are reconstructed using the anti-kT clustering algorithm with a size parameter of 0.7 in a phase space region covering jet pT from 74 GeV up to 2.5 TeV and jet absolute rapidity up to abs(y) = 3.0. The low-pT jet range between 21 and 74 GeV is also studied up to abs(y) = 4.7, using a dedicated data sample corresponding to an integrated luminosity of 5.6 inverse picobarns. The measured jet cross section is corrected for detector effects and compared with the predictions from perturbative QCD at next-to-leading order (NLO) using various sets of parton distribution functions (PDF). Cross section ratios to the corresponding measurements performed at 2.76 and 7 TeV are presented. From the measured double-differential jet cross section, the value of the strong coupling constant evaluated at the Z mass is alpha[S(M[Z]) = 0.1164 +0.0060 -0.0043, where the errors include the PDF, scale, nonperturbative effects and experimental uncertainties, using the CT10 NLO PDFs. Improved constraints on PDFs based on the inclusive jet cross section measurement are presented.
Published: 2017
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46. Relative modification of prompt psi(2S) and J/psi yields from pp to PbPb collisions at sqrt(s[NN]) = 5.02 TeV

Author: Sirunyan, Albert, Luetić, Jelena, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Šćulac, Toni, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Ferenček, Dinko, Kadija, Krešo, Mesić, Benjamin, Mićanović, Saša, Sudić, Lucija, Šuša, Tatjana, Morović, Srećko, Đurić, Senka, and Woods, Nate
Subjects: High Energy Physics::Experiment, high energy physics, experimental particle physics, LHC, CMS, standard model, Nuclear Experiment
Abstract: The relative modification of the prompt psi(2S) and J/psi yields from pp to PbPb collisions, at the center of mass energy of 5.02 TeV per nucleon pair, is presented. The analysis is based on pp and PbPb data samples collected by the CMS experiment at the LHC in 2015, corresponding to integrated luminosities of 28.0 inverse picobarns and 464 inverse microbarns, respectively. The double ratio of measured yields of prompt charmonia reconstructed through their decays into muon pairs, (N[psi(2S)]/N[J/psi])[PbPb] / (N[psi(2S)]/N[J/psi])[pp], is determined as a function of PbPb collision centrality and charmonium transverse GeV/c and 1.6 < abs(y) < 2.4 covering 3 < pt < 30 GeV/c. The centrality-integrated double ratios are 0.36 +/- 0.08 (stat) +/-0.05 (syst) in the first interval and 0.24 +/- 0.22 (stat) +/- 0.09 (syst) in the second. The double ratio is lower than unity in all the measured bins, suggesting that the psi(2S) yield is more suppressed than the J/psi yield in the explored phase space.
Published: 2017
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47. Measurements of the charm jet cross section and nuclear modification factor in pPb collisions at sqrt(s[NN]) = 5.02 TeV

Author: Sirunyan, Albert, Mesić, Benjamin, Sudić, Lucija, Godinović, Nikola, Puljak, Ivica, Starodumov, Andrey, Morović, Srećko, Lelas, Damir, Kovač, Marko, Durić, Senka, Ferenček, Dinko, Mićanović, Saša, Brigljević, Vuko, Luetić, Jelena, Antunović, Željko, Kadija, Krešo, Šuša, Tatjana, and Woods, Nate
Subjects: Physics, Astrophysics::High Energy Astrophysical Phenomena, Nuclear Theory, High Energy Physics::Phenomenology, High energy physics, Experimental particle physics, LHC, CMS, Standard Model, High Energy Physics::Experiment, Nuclear Experiment
Abstract: The CMS Collaboration presents the first measurement of the differential cross section of jets from charm quarks produced in proton-lead (pPb) collisions at a nucleon-nucleon center-of-mass energy of sqrt(s[NN]) = 5.02 TeV, as well as results from charm quark jets in proton-proton (pp) collisions at sqrt(s) = 2.76 and 5.02 TeV. By comparing the yields of the pPb and pp collision systems at the same energy, a nuclear modification factor for charm jets from 55 to 400 GeV/c in pPb collisions at sqrt(s[NN]) = 5.02 TeV of R[pA] = 0.92 +/- 0.07 (stat) +/- 0.11 (syst) is obtained. This is consistent with an absence of final-state energy loss for charm quarks in pPb collisions. In addition, the fraction of jets coming from charm quarks is found to be consistent with that predicted by PYTHIA 6 for pp collisions at sqrt(s)= 2.76 and 5.02 TeV, and is independent of the jet transverse momentum from 55 to 400 GeV/c.
Published: 2017

48. Measurements of the t-tbar production cross section in lepton+jets final states in pp collisions at 8 TeV and ratio of 8 to 7 TeV cross sections

Author: Khachatryan, Vardan, Pleština, R., Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Kadija, Krešo, Luetić, Jelena, Mićanović, Saša, Sudić, Lucija, Morović, Srećko, Ferenček, Dinko, Đurić, Senka, and Woods, Nate
Subjects: Astrophysics::High Energy Astrophysical Phenomena, High Energy Physics::Phenomenology, High Energy Physics::Experiment, high energy physics, experimental particle physics, LHC, CMS, standard model, Nuclear Experiment
Abstract: A measurement of the top quark pair production (t-tbar) cross section in proton-proton collisions at the centre-of- mass energy of 8 TeV is presented using data collected with the CMS detector at the LHC, corresponding to an integrated luminosity of 19.6 inverse femtobarns. This analysis is performed in the t-tbar decay channels with one isolated, high transverse momentum electron or muon and at least four jets, at least one of which is required to be identified as originating from hadronization of a b quark. The calibration of the jet energy scale and the efficiency of b jet identification are determined from data. The measured t-tbar cross section is 228.5 +/- 3.8 (stat) +/- 13.7 (syst) +/- 6.0 (lumi) pb. This measurement is compared with an analysis of 7 TeV data, corresponding to an integrated luminosity of 5.0 inverse femtobarns, to determine the ratio of 8 TeV to 7 TeV cross sections, which is found to be 1.43 +/- 0.04 (stat) +/- 0.07 (syst) +/- 0.05 (lumi). The measurements are in agreement with QCD predictions up to next-to-next-to- leading order.
Published: 2017

49. Search for supersymmetry in the all-hadronic final state using top quark tagging in pp collisions at sqrt(s) = 13 TeV

Author: Sirunyan, Albert, Sudić, Lucija, Godinović, Nikola, Puljak, Ivica, Starodumov, Andrey, Morović, Srećko, Lelas, Damir, Kovač, Marko, Đurić, Senka, Ferenček, Dinko, Mićanović, Saša, Brigljević, Vuko, Luetić, Jelena, Antunović, Željko, Kadija, Krešo, Šuša, Tatjana, and Woods, Nate
Subjects: Physics, High Energy Physics::Phenomenology, high energy physics, experimental particle physics, LHC, CMS, standard model, High Energy Physics::Experiment, Nuclear Experiment
Abstract: A search is presented for supersymmetry in all-hadronic events with missing transverse momentum and tagged top quarks. The data sample was collected by the CMS detector at the LHC and corresponds to an integrated luminosity of 2.3 inverse femtobarns of proton-proton collisions at a center-of-mass energy of 13 TeV. Search regions are defined using the properties of reconstructed jets, the multiplicity of bottom and top quark candidates, and an imbalance in transverse momentum. With no statistically significant excess of events observed beyond the expected contributions from the standard model, we set exclusion limits at 95% confidence level on the masses of new particles in the context of simplified models of direct and gluino-mediated top squark production. For direct top squark production with decays to a top quark and a neutralino, top squark masses up to 740 GeV and neutralino masses up to 240 GeV are excluded. Gluino masses up to 1550 GeV and neutralino masses up to 900 GeV are excluded for a gluino-mediated production case, where each of the pair-produced gluinos decays to a top-antitop quark pair and a neutralino.
Published: 2017

50. Search for heavy neutrinos or third-generation leptoquarks in final states with two hadronically decaying tau leptons and two jets in proton-proton collisions at sqrt(s) = 13 TeV

Author: Khachatryan, Vardan, Godinović, Nikola, Lelas, Damir, Puljak, Ivica, Šćulac, Toni, Antunović, Željko, Kovač, Marko, Brigljević, Vuko, Kadija, Krešo, Luetić, Jelena, Mićanović, Saša, Sudić, Lucija, Morović, Srećko, Ferenček, Dinko, Đurić, Senka, Šuša, Tatjana, and Woods, Nate
Subjects: High Energy Physics::Phenomenology, High Energy Physics::Experiment, high energy physics, experimental particle physics, LHC, CMS, standard model
Abstract: A search for new particles has been conducted using events with two high transverse momentum (pt) tau leptons that decay hadronically, at least two high-pt jets, and missing transverse energy from the tau lepton decays. The analysis is performed using data from proton-proton collisions, collected by the CMS experiment in 2015 at sqrt(s) = 13 TeV, corresponding to an integrated luminosity of 2.1 inverse femtobarns. The results are interpreted in two physics models. The first model involves heavy right-handed neutrinos, N[l] (l = e, mu, tau), and right-handed charged bosons, W[R], arising in a left-right symmetric extension of the standard model. Masses of the W[R] boson below 2.35 (1.63) TeV are excluded at 95% confidence level, assuming the N[tau] mass is 0.8 (0.2) times the mass of the W[R] boson and that only the N[tau] flavor contributes to the W[R] decay width. In the second model, pair production of third- generation scalar leptoquarks that decay into tau tau bb is considered. Third-generation scalar leptoquarks with masses below 740 GeV are excluded, assuming a 100% branching fraction for the leptoquark decay to a tau lepton and a bottom quark. This is the first search at hadron colliders for the third-generation Majorana neutrino, as well as the first search for third-generation leptoquarks in the final state with a pair of hadronically decaying tau leptons and jets.
Published: 2017
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