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The number of muons measured in hybrid events detected by the Pierre Auger Observatory

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Date
2024
Author
Stadelmaier M.; Abdul Halim A.; Abreu P.; Aglietta M.; Allekotte I.; Almeida Cheminant K.; Almela A.; Aloisio R.; Alvarez-Muñiz J.; Ammerman Yebra J.; Anastasi G.A.; Anchordoqui L.; Andrada B.; Andringa S.; Aramo C.; Araújo Ferreira P.R.; Arnone E.; Arteaga Velázquez J.C.; Asorey H.; Assis P.; Avila G.; Avocone E.; Badescu A.M.; Bakalova A.; Balaceanu A.; Barbato F.; Bartz Mocellin A.; Bellido J.A.; Berat C.; Bertaina M.E.; Bhatta G.; Bianciotto M.; Biermann P.L.; Binet V.; Bismark K.; Bister T.; Biteau J.; Blazek J.; Bleve C.; Blümer J.; Boháčová M.; Boncioli D.; Bonifazi C.; Bonneau Arbeletche L.; Borodai N.; Brack J.; Brichetto Orchera P.G.; Briechle F.L.; Bueno A.; Buitink S.; Buscemi M.; Büsken M.; Bwembya A.; Caballero-Mora K.S.; Cabana-Freire S.; Caccianiga L.; Caracas I.; Caruso R.; Castellina A.; Catalani F.; Cataldi G.; Cazon L.; Cerda M.; Cermenati A.; Chinellato J.A.; Chudoba J.; Chytka L.; Clay R.W.; Cobos Cerutti A.C.; Colalillo R.; Coleman A.; Coluccia M.R.; Conceição R.; Condorelli A.; Consolati G.; Conte M.; Convenga F.; Correia dos Santos D.; Costa P.J.; Covault C.E.; Cristinziani M.; Cruz Sanchez C.S.; Dasso S.; Daumiller K.; Dawson B.R.; de Almeida R.M.; de Jesús J.; de Jong S.J.; de Mello Neto J.R.T.; De Mitri I.; de Oliveira J.; de Oliveira Franco D.; de Palma F.; de Souza V.; De Vito E.; Del Popolo A.; Deligny O.; Denner N.; Deval L.; di Matteo A.; Dobre M.; Dobrigkeit C.; D’Olivo J.C.; Domingues Mendes L.M.; dos Anjos J.C.; dos Anjos R.C.; Ebr J.; Ellwanger F.; Emam M.; Engel R.; Epicoco I.; Erdmann M.; Etchegoyen A.; Evoli C.; Falcke H.; Farmer J.; Farrar G.; Fauth A.C.; Fazzini N.; Feldbusch F.; Fenu F.; Fernandes A.; Fick B.; Figueira J.M.; Filipčič A.; Fitoussi T.; Flaggs B.; Fodran T.; Fujii T.; Fuster A.; Galea C.; Galelli C.; García B.; Gaudu C.; Gemmeke H.; Gesualdi F.; Gherghel-Lascu A.; Ghia P.L.; Giaccari U.; Giammarchi M.; Glombitza J.; Gobbi F.; Gollan F.; Golup G.; Gómez Berisso M.; Gómez Vitale P.F.; Gongora J.P.; González J.M.; González N.; Goos I.; Góra D.; Gorgi A.; Gottowik M.; Grubb T.D.; Guarino F.; Guedes G.P.; Guido E.; Hahn S.; Hamal P.; Hampel M.R.; Hansen P.; Harari D.; Harvey V.M.; Haungs A.; Hebbeker T.; Hojvat C.; Hörandel J.R.; Horvath P.; Hrabovský M.; Huege T.; Insolia A.; Isar P.G.; Janecek P.; Johnsen J.A.; Jurysek J.; Kääpä A.; Kampert K.H.; Keilhauer B.; Khakurdikar A.; Kizakke Covilakam V.V.; Klages H.O.; Kleifges M.; Knapp F.; Kunka N.; Lago B.L.; Langner N.; Leigui de Oliveira M.A.; Lema-Capeans Y.; Lenok V.; Letessier-Selvon A.; Lhenry-Yvon I.; Lo Presti D.; Lopes L.; Lu L.; Luce Q.; Lundquist J.P.; Machado Payeras A.; Majercakova M.; Mandat D.; Manning B.C.; Mantsch P.; Marafico S.; Mariani F.M.; Mariazzi A.G.; Mariş I.C.; Marsella G.; Martello D.; Martinelli S.; Martínez Bravo O.; Martins M.A.; Mastrodicasa M.; Mathes H.J.; Matthews J.; Matthiae G.; Mayotte E.; Mayotte S.; Mazur P.O.; Medina-Tanco G.; Meinert J.; Melo D.; Menshikov A.; Merx C.; Michal S.; Micheletti M.I.; Miramonti L.; Mollerach S.; Montanet F.; Morejon L.; Morello C.; Müller A.L.; Mulrey K.; Mussa R.; Muzio M.; Namasaka W.M.; Negi S.; Nellen L.; Nguyen K.; Nicora G.; Niculescu-Oglinzanu M.; Niechciol M.; Nitz D.; Nosek D.; Novotny V.; Nožka L.; Nucita A.; Núñez L.A.; Oliveira C.; Palatka M.; Pallotta J.; Panja S.; Parente G.; Paulsen T.; Pawlowsky J.; Pech M.; Pȩkala J.; Pelayo R.; Pereira L.A.S.; Pereira Martins E.E.; Perez Armand J.; Pérez Bertolli C.; Perrone L.; Petrera S.; Petrucci C.; Pierog T.; Pimenta M.; Platino M.; Pont B.; Pothast M.; Pourmohammad Shahvar M.; Privitera P.; Prouza M.; Puyleart A.; Querchfeld S.; Rautenberg J.; Ravignani D.; Reininghaus M.; Ridky J.; Riehn F.; Risse M.; Rizi V.; Rodrigues de Carvalho W.; Rodriguez E.; Rodriguez Rojo J.; Roncoroni M.J.; Rossoni S.; Roth M.; Roulet E.; Rovero A.C.; Ruehl P.; Saftoiu A.; Saharan M.; Salamida F.; Salazar H.; Salina G.; Sanabria Gomez J.D.; Sánchez F.; Santos E.M.; Santos E.; Sarazin F.; Sarmento R.; Sato R.; Savina P.; Schäfer C.M.; Scherini V.; Schieler H.; Schimassek M.; Schimp M.; Schlüter F.; Schmidt D.; Scholten O.; Schoorlemmer H.; Schovánek P.; Schröder F.G.; Schulte J.; Schulz T.; Sciutto S.J.; Scornavacche M.; Segreto A.; Sehgal S.; Shivashankara S.U.; Sigl G.; Silli G.; Sima O.; Simon F.; Smau R.; Šmída R.; Sommers P.; Soriano J.F.; Squartini R.; Stadelmaier M.; Stanca D.; Stanič S.; Stasielak J.; Stassi P.; Strähnz S.; Straub M.; Suárez-Durán M.; Suomijärvi T.; Supanitsky A.D.; Svozilikova Z.; Szadkowski Z.; Tapia A.; Taricco C.; Timmermans C.; Tkachenko O.; Tobiska P.; Todero Peixoto C.J.; Tomé B.; Torrès Z.; Travaini A.; Travnicek P.; Trimarelli C.; Tueros M.; Unger M.; Vaclavek L.; Vacula M.; Valdés Galicia J.F.; Valore L.; Varela E.; Vásquez-Ramírez A.; Veberič D.; Ventura C.; Vergara Quispe I.D.; Verzi V.; Vicha J.; Vink J.; Vlastimil J.; Vorobiov S.; Watanabe C.; Watson A.A.; Weindl A.; Wiencke L.; Wilczyński H.; Wittkowski D.; Wundheiler B.; Yue B.; Yushkov A.; Zapparrata O.; Zas E.; Zavrtanik D.; Zavrtanik M.

Citación

       
TY - GEN T1 - The number of muons measured in hybrid events detected by the Pierre Auger Observatory Y1 - 2024 UR - http://hdl.handle.net/11407/8887 PB - et al.; Institute for Cosmic Ray Research (ICRR) Univeristy of Tokyo; International Union of Pure and Applied Physics (IUPAP); JPS; Nagoya Convention and Visitors Bureau; Nagoya University AB - The number of muons produced in extensive air showers is a reliable proxy for the amount of hadron production that occurs during the shower development. It is, therefore, an important observable in the context of identifying the mass composition of ultrahigh-energy cosmic rays. Beyond LHC energies, however, hadronic multiparticle production as it occurs in air showers from ultrahigh-energy cosmic rays, is poorly understood, and currently there is little to no way to directly test it experimentally. In simulations, current models of hadronic interactions are unable to produce the average number of muons that is measured by multiple air-shower experiments. In this work, we estimate the number of muons in vertical hybrid events detected by both the fluorescence and surface detectors of the Pierre Auger Observatory above a primary energy of 3 EeV. To reconstruct the signal, we use a model of the water-Cherenkov detector responses that is based on air-shower universality. We take into account the effect of the longitudinal shower development on the lateral distribution of the signal at the ground, as well as the primary energy estimated from the calorimetric energy deposition of the air shower. In this way, we are able to estimate the amount of muons created in vertical showers, relative to expectations from simulated showers using modern hadronic interaction models. © Copyright owned by the author(s) under the terms of the Creative Commons. ER - @misc{11407_8887, author = {}, title = {The number of muons measured in hybrid events detected by the Pierre Auger Observatory}, year = {2024}, abstract = {The number of muons produced in extensive air showers is a reliable proxy for the amount of hadron production that occurs during the shower development. It is, therefore, an important observable in the context of identifying the mass composition of ultrahigh-energy cosmic rays. Beyond LHC energies, however, hadronic multiparticle production as it occurs in air showers from ultrahigh-energy cosmic rays, is poorly understood, and currently there is little to no way to directly test it experimentally. In simulations, current models of hadronic interactions are unable to produce the average number of muons that is measured by multiple air-shower experiments. In this work, we estimate the number of muons in vertical hybrid events detected by both the fluorescence and surface detectors of the Pierre Auger Observatory above a primary energy of 3 EeV. To reconstruct the signal, we use a model of the water-Cherenkov detector responses that is based on air-shower universality. We take into account the effect of the longitudinal shower development on the lateral distribution of the signal at the ground, as well as the primary energy estimated from the calorimetric energy deposition of the air shower. In this way, we are able to estimate the amount of muons created in vertical showers, relative to expectations from simulated showers using modern hadronic interaction models. © Copyright owned by the author(s) under the terms of the Creative Commons.}, url = {http://hdl.handle.net/11407/8887} }RT Generic T1 The number of muons measured in hybrid events detected by the Pierre Auger Observatory YR 2024 LK http://hdl.handle.net/11407/8887 PB et al.; Institute for Cosmic Ray Research (ICRR) Univeristy of Tokyo; International Union of Pure and Applied Physics (IUPAP); JPS; Nagoya Convention and Visitors Bureau; Nagoya University AB The number of muons produced in extensive air showers is a reliable proxy for the amount of hadron production that occurs during the shower development. It is, therefore, an important observable in the context of identifying the mass composition of ultrahigh-energy cosmic rays. Beyond LHC energies, however, hadronic multiparticle production as it occurs in air showers from ultrahigh-energy cosmic rays, is poorly understood, and currently there is little to no way to directly test it experimentally. In simulations, current models of hadronic interactions are unable to produce the average number of muons that is measured by multiple air-shower experiments. In this work, we estimate the number of muons in vertical hybrid events detected by both the fluorescence and surface detectors of the Pierre Auger Observatory above a primary energy of 3 EeV. To reconstruct the signal, we use a model of the water-Cherenkov detector responses that is based on air-shower universality. We take into account the effect of the longitudinal shower development on the lateral distribution of the signal at the ground, as well as the primary energy estimated from the calorimetric energy deposition of the air shower. In this way, we are able to estimate the amount of muons created in vertical showers, relative to expectations from simulated showers using modern hadronic interaction models. © Copyright owned by the author(s) under the terms of the Creative Commons. OL Spanish (121)
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Abstract
The number of muons produced in extensive air showers is a reliable proxy for the amount of hadron production that occurs during the shower development. It is, therefore, an important observable in the context of identifying the mass composition of ultrahigh-energy cosmic rays. Beyond LHC energies, however, hadronic multiparticle production as it occurs in air showers from ultrahigh-energy cosmic rays, is poorly understood, and currently there is little to no way to directly test it experimentally. In simulations, current models of hadronic interactions are unable to produce the average number of muons that is measured by multiple air-shower experiments. In this work, we estimate the number of muons in vertical hybrid events detected by both the fluorescence and surface detectors of the Pierre Auger Observatory above a primary energy of 3 EeV. To reconstruct the signal, we use a model of the water-Cherenkov detector responses that is based on air-shower universality. We take into account the effect of the longitudinal shower development on the lateral distribution of the signal at the ground, as well as the primary energy estimated from the calorimetric energy deposition of the air shower. In this way, we are able to estimate the amount of muons created in vertical showers, relative to expectations from simulated showers using modern hadronic interaction models. © Copyright owned by the author(s) under the terms of the Creative Commons.
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http://hdl.handle.net/11407/8887
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