High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S

F Aharonian; F Ait Benkhali; J Aschersleben; H Ashkar; M Backes; V Barbosa Martins; R Batzofin; Y Becherini; D Berge; K Bernlöhr; B Bi; M Böttcher; C Boisson; J Bolmont; M de Bony de Lavergne; J Borowska; M Bouyahiaoui; R Brose; A Brown; F Brun; B Bruno; T Bulik; C Burger-Scheidlin; T Bylund; S Casanova; J Celic; M Cerruti; T Chand; S Chandra; A Chen; J Chibueze; O Chibueze; T Collins; G Cotter; J Damascene Mbarubucyeye; J Devin; J Djuvsland; A Dmytriiev; K Egberts; S Einecke; J.-P Ernenwein; S Fegan; K Feijen; G Fontaine; S Funk; S Gabici; Y.A Gallant; J.F Glicenstein; J Glombitza; G Grolleron; B Heß; W Hofmann; T.L Holch; M Holler; D Horns; Zhiqiu Huang; M Jamrozy; F Jankowsky; V Joshi; I Jung-Richardt; E Kasai; K Katarzynski; D Kerszberg; R Khatoon; B Khélifi; W Klúzniak; Nu Komin; K Kosack; D Kostunin; A Kundu; R.G Lang; S Le Stum; F Leitl; A Lemière; M Lemoine-Goumard; J.-P Lenain; F Leuschner; A Luashvili; J Mackey; D Malyshev; V Marandon; P Marinos; G Martí-Devesa; R Marx; M Meyer; A Mitchell; R Moderski; M.O Moghadam; L Mohrmann; A Montanari; E Moulin; M de Naurois; J Niemiec; S Ohm; L Olivera-Nieto; E de Ona Wilhelmi; M Ostrowski; S Panny; M Panter; D Parsons; U Pensec; G Peron; G Pühlhofer; M Punch; A Quirrenbach; S Ravikularaman; M Regeard; A Reimer; O Reimer; I Reis; H Ren; B Reville; F Rieger; G Rowell; B Rudak; E Ruiz-Velasco; V Sahakian; H Salzmann; A Santangelo; M Sasaki; J Schäfer; F Schüssler; H.M Schutte; J.N.S Shapopi; A Sharma; H Sol; S Spencer; L Stawarz; S Steinmassl; C Steppa; H Suzuki; T Takahashi; T Tanaka; A.M Taylor; R Terrier; M Tsirou; C van Eldik; M Vecchi; C Venter; J Vink; T Wach; S.J Wagner; A Wierzcholska; M Zacharias; A.A Zdziarski; A Zech; N Zywucka

doi:10.1103/PhysRevLett.133.221001

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High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S

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High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S

F Aharonian, F Ait Benkhali, J Aschersleben, H Ashkar, M Backes, V Barbosa Martins, R Batzofin, Y Becherini, D Berge, K Bernlöhr, …

Physical Review Letters, Vol.133(22)

2024

DOI: https://doi.org/10.1103/PhysRevLett.133.221001

Résumé

Owing to their rapid cooling rate and hence loss-limited propagation distance, cosmic-ray electrons and positrons (CRe) at very high energies probe local cosmic-ray accelerators and provide constraints on exotic production mechanisms such as annihilation of dark matter particles. We present a high-statistics measurement of the spectrum of CRe candidate events from 0.3 to 40 TeV with the High Energy Stereoscopic System (H.E.S.S.), covering two orders of magnitude in energy and reaching a proton rejection power of better than $10^{4}$. The measured spectrum is well described by a broken power law, with a break around 1 TeV, where the spectral index increases from $\Gamma_1 = 3.25$$\pm$ 0.02 (stat) $\pm$ 0.2 (sys) to $\Gamma_2 = 4.49$$\pm$ 0.04 (stat) $\pm$ 0.2 (sys). Apart from the break, the spectrum is featureless. The absence of distinct signatures at multi-TeV energies imposes constraints on the presence of nearby CRe accelerators and the local CRe propagation mechanisms.

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Titre: High-Statistics Measurement of the Cosmic-Ray Electron Spectrum with H.E.S.S
Créateurs - sans rôle: F Aharonian - Yerevan State University
F Ait Benkhali
J Aschersleben - University of Groningen
H Ashkar - Laboratoire Leprince-Ringuet
M Backes - North-West University
V Barbosa Martins
R Batzofin - University of Potsdam
Y Becherini - Linnaeus University
D Berge - Deutsches Elektronen-Synchrotron DESY
K Bernlöhr - Max Planck Institute for Nuclear Physics
B Bi - University of Tübingen
M Böttcher - North-West University
C Boisson - Université Paris Sciences et Lettres
J Bolmont - Sorbonne Université
M de Bony de Lavergne - Université Paris-Saclay
J Borowska - Humboldt-Universität zu Berlin
M Bouyahiaoui - Max Planck Institute for Nuclear Physics
R Brose - Dublin Institute For Advanced Studies
A Brown - University of Oxford
F Brun - Université Paris-Saclay
B Bruno - Friedrich-Alexander-Universität Erlangen-Nürnberg
T Bulik - University of Warsaw
C Burger-Scheidlin - Dublin Institute For Advanced Studies
T Bylund - CEA Paris-Saclay
S Casanova
J Celic - Friedrich-Alexander-Universität Erlangen-Nürnberg
M Cerruti - Laboratoire AstroParticule et Cosmologie
T Chand - North-West University
S Chandra - North-West University
A Chen - University of the Witwatersrand
J Chibueze - North-West University
O Chibueze - North-West University
T Collins
G Cotter - University of Oxford
J Damascene Mbarubucyeye
J Devin - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
J Djuvsland - Max Planck Institute for Nuclear Physics
A Dmytriiev - North-West University
K Egberts - University of Potsdam
S Einecke - The University of Adelaide
J.-P Ernenwein - Centre de physique des particules de Marseille
S Fegan - Laboratoire Leprince-Ringuet
K Feijen - Laboratoire AstroParticule et Cosmologie
G Fontaine - Laboratoire Leprince-Ringuet
S Funk - Friedrich-Alexander-Universität Erlangen-Nürnberg
S Gabici - Laboratoire AstroParticule et Cosmologie
Y.A Gallant - Université de Montpellier, Laboratoire Univers et Particules de Montpellier - LUPM
J.F Glicenstein - Commissariat à l'Énergie Atomique et aux Énergies Alternatives
J Glombitza - Friedrich-Alexander-Universität Erlangen-Nürnberg
G Grolleron - Sorbonne Université
B Heß
W Hofmann - Max Planck Institute for Nuclear Physics
T.L Holch - Deutsches Elektronen-Synchrotron DESY
M Holler - Universität Innsbruck
D Horns - Universität Hamburg
Zhiqiu Huang - Max Planck Institute for Nuclear Physics
M Jamrozy - Jagiellonian University
F Jankowsky - Heidelberg University
V Joshi - Friedrich-Alexander-Universität Erlangen-Nürnberg
I Jung-Richardt - Friedrich-Alexander-Universität Erlangen-Nürnberg
E Kasai - University of Namibia
K Katarzynski - Nicolaus Copernicus University
D Kerszberg - Sorbonne Université
R Khatoon - North-West University
B Khélifi - Université Paris Cité
W Klúzniak - Polish Academy of Sciences
Nu Komin - University of the Witwatersrand
K Kosack - Institut de Recherche sur les Lois Fondamentales de l'Univers
D Kostunin - Deutsches Elektronen-Synchrotron DESY
A Kundu - North-West University
R.G Lang - Friedrich-Alexander-Universität Erlangen-Nürnberg
S Le Stum - Aix-Marseille Université
F Leitl - Friedrich-Alexander-Universität Erlangen-Nürnberg
A Lemière - Laboratoire AstroParticule et Cosmologie
M Lemoine-Goumard - Laboratoire de Physique des deux infinis Bordeaux
J.-P Lenain - Sorbonne Université
F Leuschner - University of Tübingen
A Luashvili - Université Paris Sciences et Lettres
J Mackey - Dublin Institute For Advanced Studies
D Malyshev - University of Tübingen
D Malyshev - University of Tübingen
V Marandon - Institut de Recherche sur les Lois Fondamentales de l'Univers
P Marinos - The University of Adelaide
G Martí-Devesa - Universität Innsbruck
R Marx - Heidelberg University
M Meyer - University of Southern Denmark
A Mitchell - Friedrich-Alexander-Universität Erlangen-Nürnberg
R Moderski - Polish Academy of Sciences
M.O Moghadam - University of Potsdam
L Mohrmann - Max Planck Institute for Nuclear Physics
A Montanari - Heidelberg University
E Moulin - CEA Paris-Saclay
M de Naurois - Laboratoire Leprince-Ringuet
J Niemiec
S Ohm - Deutsches Elektronen-Synchrotron DESY
L Olivera-Nieto - Max Planck Institute for Nuclear Physics
E de Ona Wilhelmi - Deutsches Elektronen-Synchrotron DESY
M Ostrowski - Jagiellonian University
S Panny - Universität Innsbruck
M Panter - Max Planck Institute for Nuclear Physics
D Parsons
U Pensec - Laboratoire de Physique Nucléaire et de Hautes Énergies
G Peron - AstroParticule et Cosmologie
G Pühlhofer
M Punch - AstroParticule et Cosmologie
A Quirrenbach
S Ravikularaman - AstroParticule et Cosmologie
M Regeard - AstroParticule et Cosmologie
A Reimer
O Reimer
I Reis - Institut de Recherches sur les lois Fondamentales de l'Univers
H Ren
B Reville
F Rieger
G Rowell
B Rudak
E Ruiz-Velasco
V Sahakian
H Salzmann
A Santangelo
M Sasaki
J Schäfer
F Schüssler - Institut de Recherches sur les lois Fondamentales de l'Univers
H.M Schutte
J.N.S Shapopi
A Sharma - AstroParticule et Cosmologie
H Sol - Laboratoire Univers et Théories
S Spencer
L Stawarz
S Steinmassl
C Steppa
H Suzuki
T Takahashi
T Tanaka
A.M Taylor
R Terrier - AstroParticule et Cosmologie
M Tsirou
C van Eldik
M Vecchi
C Venter
J Vink
T Wach
S.J Wagner
A Wierzcholska
M Zacharias
A.A Zdziarski
A Zech - Laboratoire Univers et Théories
N Zywucka
Détails de publication: Physical Review Letters, Vol.133(22)
Identifiants: 99152483909311
Unité académique: Laboratoire Univers et Particules de Montpellier - LUPM
Langue: English
Type de ressource: Journal article
Champs locaux: hal-04805809