The energy spectrum of cosmic rays beyond the turn-down around 10.sup.17./sup. eV as measured with the surface detector of the Pierre Auger Observatory

Abreu, P.; Aglietta, M.; Albury, J.M.; Bakalová, Alena; Blažek, Jiří; Boháčová, Martina; Chudoba, Jiří; Ebr, Jan; Hamal, Petr; Janeček, Petr; Juryšek, Jakub; Mandát, Dušan; Palatka, Miroslav; Pech, Miroslav; Prouza, Michael; Řídký, Jan; dos Santos, Eva M. Martins; Schovánek, Petr; Tobiška, Petr; Trávníček, Petr; Vícha, Jakub; Yushkov, Alexey

doi:https://dx.doi.org/10.1140/epjc/s10052-021-09700-w

Number of the records: 1

The energy spectrum of cosmic rays beyond the turn-down around 10.sup.17./sup. eV as measured with the surface detector of the Pierre Auger Observatory

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SYSNO ASEP	0550822
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	The energy spectrum of cosmic rays beyond the turn-down around 10¹⁷ eV as measured with the surface detector of the Pierre Auger Observatory
Author(s)	Abreu, P. (PT) Aglietta, M. (IT) Albury, J.M. (AU) Bakalová, Alena (FZU-D)_ORCID Blažek, Jiří (FZU-D)_{ORCID, RID} Boháčová, Martina (FZU-D)_{RID, ORCID} Chudoba, Jiří (FZU-D)_{RID, ORCID} Ebr, Jan (FZU-D)_{RID, ORCID} Hamal, Petr (FZU-D)_ORCID Janeček, Petr (FZU-D)_{RID, ORCID} Juryšek, Jakub (FZU-D)_ORCID Mandát, Dušan (FZU-D)_{RID, ORCID} Palatka, Miroslav (FZU-D)_{RID, ORCID, SAI} Pech, Miroslav (FZU-D)_{RID, ORCID} Prouza, Michael (FZU-D)_{RID, ORCID} Řídký, Jan (FZU-D)_{RID, ORCID} dos Santos, Eva M. Martins (FZU-D)_ORCID Schovánek, Petr (FZU-D)_{RID, ORCID} Tobiška, Petr (FZU-D)_ORCID Trávníček, Petr (FZU-D)_{RID, ORCID} Vícha, Jakub (FZU-D)_{RID, ORCID} Yushkov, Alexey (FZU-D)_ORCID
Number of authors	376
Article number	966
Source Title	European Physical Journal C. - : Springer - ISSN 1434-6044 Roč. 81, č. 11 (2021)
Number of pages	25 s.
Language	eng - English
Country	DE - Germany
Keywords	Pierre Auger Observatory ; high energy ; telescopes cosmic rays ; surface detector
Subject RIV	BF - Elementary Particles and High Energy Physics
OECD category	Particles and field physics
R&D Projects	LTT18004 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	EF18_046/0016010 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	EF16_013/0001402 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
	LM2015038 GA MŠMT - Ministry of Education, Youth and Sports (MEYS)
Research Infrastructure	AUGER-CZ II - 90102 - Fyzikální ústav AV ČR, v. v. i.
Method of publishing	Open access
Institutional support	FZU-D - RVO:68378271
UT WOS	000714088200001
EID SCOPUS	85118807945
DOI	10.1140/epjc/s10052-021-09700-w
Annotation	We present a measurement of the cosmic-ray spectrum above 100PeV using the part of the surface detector of the Pierre Auger Observatory that has a spacing of 750 m. An inflection of the spectrum is observed, confirming the presence of the so-called second-knee feature. The spectrum is then combined with that of the 1500m array to produce a single measurement of the flux, linking this spectral feature with the three additional breaks at the highest energies. The combined spectrum, with an energy scale set calorimetrically via fluorescence telescopes and using a single detector type, results in the most statistically and systematically precise measurement of spectral breaks yet obtained. These measurements are critical for furthering our understanding of the highest energy cosmic rays.
Workplace	Institute of Physics
Contact	Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579
Year of Publishing	2022
Electronic address	http://hdl.handle.net/11104/0326129

Number of the records: 1