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Title: The depth of the shower maximum of air showers measured with AERA Authors: ID Pont, Bjarni (Author) ID Filipčič, Andrej (Author) ID Lundquist, Jon Paul (Author) ID Stanič, Samo (Author) ID Vorobiov, Serguei (Author) ID Zavrtanik, Danilo (Author) ID Zavrtanik, Marko (Author) ID Zehrer, Lukas (Author), et al. Files: ARENA2022_044.pdf (507,88 KB) MD5: 44B400109FB31B244FB8B50C2C9B6C39   https://doi.org/10.22323/1.424.0044   https://pos.sissa.it/424/044   This document has even more files. Complete list of files is available below. Language: English Work type: Unknown Typology: 1.08 - Published Scientific Conference Contribution Organization: UNG - University of Nova Gorica Abstract: The Auger Engineering Radio Array (AERA) is an array of 153 radio antennas spanning an area of 17 sq. km, currently the largest of its kind, that probes the nature of ultra-high energy cosmic rays at energies around the transition from Galactic to extra-galactic origin. It measures the MHz radio emission of extensive air showers produced by cosmic rays hitting our atmosphere. The elemental composition of cosmic rays is a crucial piece of information in determining what the sources of cosmic rays are and how cosmic rays are accelerated. This composition can be obtained from the mass-sensitive parameter Xmax, the depth of the shower maximum. We reconstruct Xmax with a likelihood analysis by comparing the measured radio footprint on the ground to an ensemble of footprints from Monte-Carlo CORSIKA/CoREAS air shower simulations. We compare our Xmax reconstruction with fluorescence Xmax measurements on a per-event basis, a setup unique to the Pierre Auger Observatory, and show the methods to be compatible. Furthermore, we extensively validate our reconstruction by identifying and correcting for systematic uncertainties. We determine the resolution of our method as a function of energy and reach a precision better than 15 g/cm[sup]2 at the highest energies. With a bias-free set of around 600 showers, we find a light to light-mixed composition at energies between 10[sup]17.5 to 10[sup]18.8 eV, also in agreement with Auger fluorescence measurements. Keywords: Pierre Auger Observatory, ultra-high-energy cosmic rays, extensive air showers, UHECR mass composition Publication status: Published Publication version: Version of Record Year of publishing: 2023 Number of pages: Str. 1-8 PID: 20.500.12556/RUNG-9380  COBISS.SI-ID: 210084867  UDC: 52 ISSN on article: 1824-8039 DOI: 10.22323/1.424.0044  NUK URN: URN:SI:UNG:REP:IUE1GWNM Publication date in RUNG: 03.10.2024 Views: 451 Downloads: 5 Metadata:    Cite this work Plain text BibTeX EndNote XML EndNote/Refer RIS ABNT ACM Ref AMA APA Chicago 17th Author-Date Harvard IEEE ISO 690 MLA Vancouver : Copy citation

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Record is a part of a proceedings

Title:	9th International Workshop on Acoustic and Radio EeV Neutrino Detection Activities [also] ARENA2022
COBISS.SI-ID:	210073347

Record is a part of a journal

Title:	Proceedings of science
Shortened title:	Pos proc. sci.
Publisher:	Sissa
ISSN:	1824-8039
COBISS.SI-ID:	20239655

Document is financed by a project

Funder:	ARIS - Slovenian Research and Innovation Agency
Project number:	P1-0031
Name:	Večglasniška astrofizika

Licences

License:	CC BY-NC-ND 4.0, Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
Link:	http://creativecommons.org/licenses/by-nc-nd/4.0/
Description:	The most restrictive Creative Commons license. This only allows people to download and share the work for no commercial gain and for no other purposes.

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