UHECR2024
17-21 November 2024
Malargüe, Mendoza, Argentina

The 7th International Symposium on Ultra-High-Energy Cosmic Rays (UHECR 2024), held from November 17 to 21, 2024, in Malargüe, Argentina, was a new edition of a series of meetings that bring together the UHECR community and that were previously held in Nagoya (2010), CERN (2012), Springdale, Utah (2014), Kyoto (2016), Paris (2018), and L'Aquila (2022).

The latest results from UHECR observations, theoretical developments, and future plans in the field were discussed. The symposium focused on the highest energy cosmic rays, as well as on cosmic rays with energies above 1 PeV. The agenda included invited reviews, contributed talks, and reports from inter-collaborative working groups, all in plenary sessions. Poster contributions were also presented. Both oral and poster presentations are included in the proceedings.

conference main image
Sessions
session Monday
session Tuesday
session Wednesday
Session Thursday
session Posters
session Monday
Source Models of UHECRs
B.T. Zhang
Magnetic field effects on UHECR propagation
S. Mollerach
The Galactic Magnetic Field and UHECR Deflections
M. Unger and G.R. Farrar
The flux of UHECRs along the supergalactic plane using Pierre Auger Observatory data
A. di Matteo and  on behalf of the Pierre Auger Collaboration
Large-scale cosmic-ray anisotropies measured at the Pierre Auger Observatory
E. Roulet and  on behalf of the Pierre Auger Collaboration
Update on full-sky searches for large- and medium-scale anisotropies in the UHECR flux using the Pierre Auger Observatory and the Telescope Array
file missing
G. Rubtsov
Are Star-forming and Starburst Galaxies actually Cosmic-rays calorimeters? Insights from 15 years of Fermi-LAT Data and implications for UHECRs
A. Ambrosone
Astrophysical models to interpret the Pierre Auger Observatory data
J.M. Gonzalez and  on behalf of the Pierre Auger Collaboration
Approaching UHECR astronomy using mass-sensitive data from the Pierre Auger Observatory and the Telescope Array Project
K. Watanabe, A. Fedynitch, F. Capel and H. Sagawa
session Tuesday
The Pierre Auger Observatory and Physics Beyond the Standard Model
R. Aloisio and  on behalf of the Pierre Auger Collaboration
Searches for ultra-high-energy photons with the Pierre Auger Observatory
N.M. Gonzalez and  on behalf of the Pierre Auger Collaboration
Searches for UHE neutrinos and upward-going showers at the Pierre Auger Observatory
J. Alvarez-Muñiz
Development of an analysis method for neutrino-induced air showers with the Telescope Array surface detectors
K. Takahashi, T. Sako, K. Fujisue, K. Fujita, K. Kawata, S. Ogio, H. Oshima, H. Sagawa, M. Takeda and  On behalf of the Telescope Array collaboration
A new view of UHECRs with the Pierre Auger Observatory
D. Boncioli and  on behalf of the Pierre Auger Collaboration
Multi-Messenger Insights into Ultra-High-Energy Cosmic Rays from FR0 Radio Galaxies: Emission Spectrum, Composition, and Secondary Photons and Neutrinos
J.P. Lundquist, S. Vorobiov, L. Merten, A. Reimer, M. Boughelilba, P. Da Vela, F. Tavecchio, G. Bonnoli and C. Righi
Various constraints on BSM physics from extensive air showers and from UHE gamma-ray and neutrino searches
O. Deligny
session Wednesday
Hadronic interaction at LHC: review for the LHCf and air shower related measurements
Overview of hadronic interaction studies at the Pierre Auger Observatory
J. Vícha and  on behalf of the Pierre Auger Collaboration
Muons in air showers with IceCube: muon density at ground and high-energy muon multiplicity
S. Verpoest and  on behalf of the IceCube Collaboration
Measuring the Proton-Proton Interaction Cross-Section with Hybrid Data of the Pierre Auger Observatory
O. Tkachenko and  on behalf of the Pierre Auger Collaboration
Energy Spectrum Measured by the Telescope Array Surface Detectors
J. Kim, D. Ivanov, G. Thomson and  On behalf of the Telescope Array collaboration
Testing the declination dependency of the spectrum measured by the Pierre Auger Observatory
D. Ravignani and  on behalf of the Pierre Auger Collaboration
Measurement of cosmic-ray energy spectrum with the TALE detector in hybrid mode
H. Oshima, K. Fujita, S. Ogio, T. Sako and  On behalf of the Telescope Array collaboration
Evaluation of the Telescope Array surface detector's energy reconstruction performance using a deep neural network and hybrid data
A. Prosekin, K. Fujisue, A. Fedynitch, H. Sagawa and  On behalf of the Telescope Array collaboration
Mass composition of ultra-high-energy cosmic rays at the Pierre Auger Observatory
T. Fitoussi and  on behalf of the Pierre Auger Collaboration
Cosmic Ray Composition Measurement between 3 PeV to 30 PeV with the TALE Hybrid Detector
K. Fujita and  On behalf of the Telescope Array collaboration
CORSIKA 8: A modern and universal framework for particle cascade simulations
M. Gottowik and  on behalf of the CORSIKA 8 collaboration
Modified Hadronic Interactions and the future of UHECR observations
J. Ebr, J. Blazek, J. Vícha, T. Pierog, E. Santos, P. Travnicek, N. Denner and R. Ulrich
Session Thursday
The Venusian Chronicles
S.J. Sciutto, L.A. Anchordoqui and C.A. Garcia Canal
Highlights from the Auger Engineering Radio Array
B. Pont and  on behalf of the Pierre Auger Collaboration
Subluminal Pulses in the Surface-Scintillator Detectors of AugerPrime
T. Schulz and  on behalf of the Pierre Auger Collaboration
Latest updates and results from the Fluorescence detector Array of Single-pixel Telescopes (FAST)
F. Bradfield, J. Albury, J. Bellido, K. Cerny, L. Chytka, J. Farmer, T. Fujii, P. Hamal, P. Horvath, M. Hrabovsky, V. Jilek, J. Kmec, J. Kvita, M. Malacari, D. Mandat, M. Mastrodicasa, J. Matthews, S. Michal, H. Nagasawa, H. Namba, M. Niechciol, L. Nozka, M. Palatka, M. Pech, P. Privitera, S. Sakurai, F. Salamida, P. Schovanek, R. Smida, D. Staník, Z. Svozilikova, A. Taketa, K. Terauchi, S. Thomas, P. Travnicek, M. Vacula and  on behalf of the FAST Collaboration
Progress in the development of the observation system for the CRAFFT project
Y. Tameda and  on behalf of the CRAFFT Collaboration
Science Potential and Technical Design of the IceCube-Gen2 Surface Array
F. Schröder and  on behalf of the IceCube-Gen2 collaboration
The Strawman Design of the Global Cosmic Ray Observatory
J. Hörandel and  the GCOS supporters
GRAND: status and perspectives
B. de Errico, K. Kotera and  On behalf of the GRAND Collaboration
The Mini-EUSO telescope on board the International Space Station: mission results in view of UHECR measurements from space
M.E. Bertaina, M. Abrate, D. Barghini, M. Battisti, A.A. Belov, M. Bianciotto, F. Bisconti, C. Blaksley, S. Blin, F. Capel, M. Casolino, I. Churilo, M. Crisconio, C. De La Taille, T. Ebisuzaki, F. Fenu, M.A. Franceschi, C. Fuglesang, A. Golzio, P. Gorodetzky, F. Kajino, H. Kasuga, P. Klimov, V. Kuznetsov, M. Manfrin, A. Marcelli, L. Marcelli, W. Marszal, G. Mascetti, M. Mignone, H. Miyamoto, A. Murashov, T. Napolitano, H. Ohmori, E. Parizot, P. Picozza, L.W. Piotrowski, Z.D. Plebaniak, G. Prévôt, E. Reali, F. Reynaud, M. Ricci, G. Romoli, S. Sharakin, K. Shinozaki, J. Szabelski, Y. Takizawa, G. Valentini, M. Vrábel, M. Zotov and  on behalf of the JEM-EUSO Collaboration
Overview of the JEM-EUSO Program
R. Caruso
POEMMA-Balloon with Radio, towards a space-based Multi-Messenger Observatory
J. Eser, E. Mayotte, A.V. Olinto, G. Osteria and  on behalf of the JEM-EUSO Collaboration
session Posters
Rescaling of the muon content of simulated air showers in the context of the Muon Puzzle
K. Almeida Cheminant, N. Borodai, R. Engel, D. Gora, T. Pierog, J. Pękala, M. Roth, M. Unger, D. Veberic and H. Wilczyński
The connection between Cosmic-rays, Neutrinos and X-ray: the Case of Seyfert Galaxies
A. Ambrosone
Light Dark Matter vs Starburst Nuclei
A. Ambrosone
Towards the implementation of the photodisintegration interaction in SimProp Sirente
L. Andrade Dourado, D. Boncioli, A. di Matteo, C. Evoli, S. Petrera and F. Salamida
Amplifying UHECR arrival direction information using mass estimators at the Pierre Auger Observatory
L. Apollonio and  on behalf of the Pierre Auger Collaboration
Arrival directions of ultra-high-energy cosmic rays assuming heavy mass-composition
A. Bakalova, A.L. Müller and J. Vícha
Prospects for constraining transient sources of UHECRs with arrival-direction data
T. Bister and J. Biteau
Beyond the Local Void: A comprehensive view on the origins of the Amaterasu particle.
N. Bourriche and F. Capel
Magnetic Monopoles: Theoretical Insights into the Cosmic Ray Conundrum
L. Bratek and J. Jałocha
$\nu$SpaceSim: An end-to-end simulation package to model the sensitivity of UHECR experiments to upward-moving extensive air showers sourced by cosmic neutrinos interacting in the Earth
J. Caraça-Valente Barrera and  on behalf of the $\nu$SpaceSim collaboration
GRAND@Auger: status and first results
B. de Errico and  On behalf of the GRAND Collaboration
Improved Calibration Methods and Reconstruction of the Underground Muon Detector of the Pierre Auger Observatory
J. de Jesus and  on behalf of the Pierre Auger Collaboration
Data-driven method to quantify and correct the corner-clipping effect in segmented muon counters
J. de Jesus, J.M. Figueira, F.A. Sánchez and D. Veberic
On gamma rays as predictors of UHECR flux in AGNs
C. de Oliveira, R.G. Lang and P.I. Batista
Impact of the Galactic magnetic field modelling on studies of the UHECRs arrival direction
L. Deval, R. Engel, T. Fitoussi, E. Roulet and M. Unger
Investigations of CORSIKA Thinning Levels Suitable for Studies of Photon-Hadron Discrimination at Ultra-High Energies
F.H. Ellwanger and  on behalf of the Pierre Auger Collaboration
ANDESPix: A Digital SiPM for Muon Detectors
A.F. Elsenhans, F. Alcalde Bessia, F. Zapata Bascuñán, A.E. Fuster, M.R. Hampel, J. Lipovetzky, M. Platino and I. Peric
Calibration of the Scintillator Surface Detector of AugerPrime
P. Filip and  on behalf of the Pierre Auger Collaboration
Layered Water Cherenkov Detectors for Next Generation Air-Shower Arrays
B. Flaggs and I.C. Maris
Global Spline Fit (GSF) 2024
K. Fujisue, H. Dembinski, R. Engel and A. Fedynitch
Communicating astroparticle physics with the public: the Pierre Auger Observatory experience
B. García and  on behalf of the Pierre Auger Collaboration
CORSIKA 8 with Pythia 8/Angantyr: Simulating Inclined Proton Showers
C. Gaudu, M. Reininghaus, F. Riehn and  on behalf of the CORSIKA 8 collaboration
Machine learning-based analyses using surface detector data of the Pierre Auger Observatory
S. Hahn and  on behalf of the Pierre Auger Collaboration
Correlation studies on UHECR arrival direction and source candidates, with a convolution of magnetic field and mass composition
R. Higuchi and  for the TA collaboration
The Radio Detector of the Pierre Auger Observatory
J. Hörandel and  on behalf of the Pierre Auger Collaboration
Oscillations of hypothetical strange stars as an efficient source ultra-high-energy particles.
J. Jałocha-Bratek and Ł. Bratek
Measurement of cosmic rays with energies down to the PeV region using the TALE-infill SD array
Y. Kawachi and  On behalf of the Telescope Array collaboration
Telescope Array Surface Detector Medium-scale Anisotropy Analyses
J. Kim, D. Ivanov, K. Kawata, H. Sagawa, G. Thomson and  On behalf of the Telescope Array collaboration
The fractional analysis of mass composition measured by the Telescope Array FADC fluorescence detectors in hybrid mode
J. Kim, D. Bergman and  On behalf of the Telescope Array collaboration
Analysis of Inclined Air Shower Events Observed by the TAx4 SD
C. Koyama and  On behalf of the Telescope Array collaboration
Mapping distributions of production variables of UHECR-air interactions onto the ($N_\mu$, $X_{\max}$) space
M.A. Martins, L. Cazon, R. Conceição and F. Riehn
Prospects of a composition-enhanced search for large-scale anisotropy with the Pierre Auger Observatory
E.E. Martins and  on behalf of the Pierre Auger Collaboration
Search for neutrons from Galactic sources with the Pierre Auger Observatory
M.A. Martins and  on behalf of the Pierre Auger Collaboration
Impact of Lorentz Invariance Violation on the Propagation of Ultra-High-Energy Photons
P. Morais, D. Boncioli, F. Salamida, I.P. Lobo and V.B. Bezerra
Active Galactic Nuclei Metallicity Enrichment and UHECR Composition
A.L. Müller and A. Araudo
Improved method of searching for flares of neutral particles from point sources
J. Sasielak, N. Borodai, D. Gora, M. Niechciol and J. Pękala
Does the Local Bubble bias Galactic magnetic field models used to backtrack UHECRs?
V. Pelgrims, M. Unger and I.C. Maris
Estimation of Muons on the Surface and Correlation with the Muonic Signal of AugerPrime
C. Pérez Bertolli and  on behalf of the Pierre Auger Collaboration
Stochastic description of UHECR interactions
L. Morejon and J. Rautenberg
Neural Networks for Photon Searches with AugerPrime
E. Rodriguez and  on behalf of the Pierre Auger Collaboration
ALPACA project to observe sub-PeV gamma-ray sky in the southern hemisphere
T. Sako, M. Anzorena, E. de la Fuente, K. Fujita, R. Garcia, K. Goto, Y. Hayashi, K. Hibino, N. Hotta, G. Imaizumi, A. Jimenez-Meza, Y. Katayose, C. Kato, S. Kato, T. Kawashima, K. Kawata, T. Koi, H. Kojima, T. Makishima, Y. Masuda, S. Matsuhashi, M. Matsumoto, R. Mayta, P. Miranda, A. Mizuno, K. Munakata, Y. Nakamura, M. Nishizawa, Y. Noguchi, S. Ogio, M. Ohnishi, S. Okukawa, A. Oshima, M. Raljevich, H. Rivera, T. Saito, T.K. Sako, T. Shibasaki, S. Shibata, A. Shiomi, M. Subieta, F. Sugimoto, N. Tajima, W. Takano, M. Takita, Y. Tameda, K. Tanaka, R. Ticona, I. Toledano-Juarez, H. Tsuchiya, Y. Tsunesada, S. Udo, R. Usui, G. Yamagishi, K. Yamazaki and Y. Yokoe
The core software and simulation activities for data analysis at the Pierre Auger Observatory
E. Santos and  on behalf of the Pierre Auger Collaboration
The Pierre Auger Observatory Open Data
V. Scherini and  The Pierre Auger Collaboration
Neural network identification of highly inclined muons in water-Cherenkov particle detectors
M. Pourmohammad Shahvar, G. Marsella, M. Roth and D. Schmidt
Effect of the knock-on electrons in the calorimetric mode of an underground muon detector
M. Scornavacche, J.M. Figueira, F.A. Sánchez and D. Veberic
Reconstructing Air-Shower Observables using a Universality-Based Model
M. Stadelmaier and  on behalf of the Pierre Auger Collaboration
Ultra-high-energy cosmic rays from accretion shocks in galaxy clusters
D. Supanitsky and S.E. Nuza
Calibration of the TA Fluorescence Detectors and Systematic Uncertainties in UHECR Analysis
T. Tomida, D. Sato, K. Mizuno, A. Matsuzawa, Y. Tameda, K. Yamazaki, K. Fujita, D. Ikeda, J. Matthews and  On behalf of the Telescope Array collaboration
Evaluating the purity of cosmic ray composition via depth of the shower maximum and muon density-based parameter correlation
V.V. Kizakke Covilakam and A.D. Supanitsky
Plans for a new array of radio antennas for the detection of air showers at the 433m surface-detector array of the Pierre Auger Observatory
S. Verpoest, F. Schroeder, A. Novikov, A. Coleman, B. Flaggs, A. Weindl, M. Venugopal, C. Merx and A. Haungs
Consequences of a Heavy-Metal Scenario for Ultra-High-Energy Cosmic Rays
J. Vícha, A. Bakalova, O. Tkachenko, A. Laura Müller and M. Stadelmaier

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