Estimating the potential of SWGO to measure the composition-dependent behaviour of the CR anisotropy

the SWGO Collaboration

Estimating the potential of SWGO to measure the composition-dependent behaviour of the CR anisotropy

the SWGO Collaboration

Department of Physics

Friedrich-Alexander University Erlangen-Nürnberg
University of Wisconsin-Madison
Shanghai Jiao Tong University
Max Planck Institute for Nuclear Physics
German Electron Synchrotron
Laboratório de Instrumentação e Física Experimental de Partículas
University of Lisbon
Los Alamos National Laboratory
Universidad Nacional Autónoma de México
Universidad de La Serena
Universidad Autonoma de Chiapas
University of Science and Technology of China
Scientific and Technological Research Council of Turkey
National Institute for Nuclear Physics
Universidad Nacional San Antonio Abad del Cusco
Comisión Nacional de Energía Atómica
Pennsylvania State University
Czech Academy of Sciences
Centro Brasileiro de Pesquisas Físicas
Universidade de São Paulo
University of Padua
Pontificia Universidad Católica del Perú
Universidad Nacional San Agustín de Arequipa
Adelaide University
University of Rochester
National Institute for Astrophysics
University of Warsaw
University of Rome Tor Vergata
Universidad Nacional de Salta
CAS - Institute of High Energy Physics
Universidad Técnica Federico Santa Maria
Instituto Nacional de Astrofisica Optica y Electronica
Universidad Nacional de Ingeniería, Peru
Instituto Politécnico Nacional
University of Naples Federico II
University of Turin

Research output: Contribution to journal › Conference article › peer-review

Abstract

Current cosmic ray anisotropy experiments have shown a significant swing in both the direction and the amplitude of the dipole at energies around tens of TeV. Due to the charged nature of these particles, and the presence of magnetic fields in our galaxy, an underlying composition-dependent dipole swing is expected. For this reason, combining measurements of the composition and the distribution of arrival directions is essential for unveiling the astrophysical origin of this structure. In this work, we study the potential of the upcoming Southern Wide-field Gamma-ray Observatory (SWGO) in contributing to these anisotropy studies. We present a template-based method developed for reconstructing the number of muons and separating primary cosmic rays. Preliminary resolutions of 5 − 30% in the number of muons and an accuracy of 70 − 90% in the species separation are found. A clear improvement is seen by considering a dedicated muon-counter layer in a detector, highlighting the future potential of SWGO.

Original language	English
Article number	486
Journal	Proceedings of Science
Volume	444
State	Published - 27 Sep 2024
Event	38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, Japan Duration: 26 Jul 2023 → 3 Aug 2023

Cite this

@article{ebdd260e216c4d4f99ba47614f082167,

title = "Estimating the potential of SWGO to measure the composition-dependent behaviour of the CR anisotropy",

abstract = "Current cosmic ray anisotropy experiments have shown a significant swing in both the direction and the amplitude of the dipole at energies around tens of TeV. Due to the charged nature of these particles, and the presence of magnetic fields in our galaxy, an underlying composition-dependent dipole swing is expected. For this reason, combining measurements of the composition and the distribution of arrival directions is essential for unveiling the astrophysical origin of this structure. In this work, we study the potential of the upcoming Southern Wide-field Gamma-ray Observatory (SWGO) in contributing to these anisotropy studies. We present a template-based method developed for reconstructing the number of muons and separating primary cosmic rays. Preliminary resolutions of 5 − 30\% in the number of muons and an accuracy of 70 − 90\% in the species separation are found. A clear improvement is seen by considering a dedicated muon-counter layer in a detector, highlighting the future potential of SWGO.",

author = "\{the SWGO Collaboration\} and Lang, \{Rodrigo Guedes\} and Paolo Desiati and Gwenael Giacinti and Samridha Kunwar and Taylor, \{Andrew M.\} and P. Abreu and A. Albert and R. Alfaro and A. Alfonso and C. {\'A}lvarez and Q. An and Ang{\"u}ner, \{E. O.\} and C. Arcaro and R. Arceo and S. Arias and H. Arnaldi and P. Assis and \{Ayala Solares\}, \{H. A.\} and A. Bakalova and \{Barres de Almeida\}, U. and I. Batkovi{\'c} and J. Bazo and J. Bellido and E. Belmont and BenZvi, \{S. Y.\} and A. Bernal and W. Bian and C. Bigongiari and E. Bottacini and P. Brogueira and T. Bulik and G. Busetto and Caballero-Mora, \{K. S.\} and P. Camarri and S. Campos and W. Cao and Z. Cao and Z. Cao and T. Capistr{\'a}n and M. Cardillo and E. Carquin and A. Carrami{\~n}ana and C. Castromonte and J. Chang and O. Chaparro and S. Chen and M. Chianese and A. Chiavassa and L. Chytka and Rho, \{C. D.\}",

note = "Publisher Copyright: {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons.; 38th International Cosmic Ray Conference, ICRC 2023 ; Conference date: 26-07-2023 Through 03-08-2023",

year = "2024",

month = sep,

day = "27",

language = "English",

volume = "444",

journal = "Proceedings of Science",

issn = "1824-8039",

publisher = "Sissa Medialab Srl",

}

TY - JOUR

T1 - Estimating the potential of SWGO to measure the composition-dependent behaviour of the CR anisotropy

AU - the SWGO Collaboration

AU - Lang, Rodrigo Guedes

AU - Desiati, Paolo

AU - Giacinti, Gwenael

AU - Kunwar, Samridha

AU - Taylor, Andrew M.

AU - Abreu, P.

AU - Albert, A.

AU - Alfaro, R.

AU - Alfonso, A.

AU - Álvarez, C.

AU - An, Q.

AU - Angüner, E. O.

AU - Arcaro, C.

AU - Arceo, R.

AU - Arias, S.

AU - Arnaldi, H.

AU - Assis, P.

AU - Ayala Solares, H. A.

AU - Bakalova, A.

AU - Barres de Almeida, U.

AU - Batković, I.

AU - Bazo, J.

AU - Bellido, J.

AU - Belmont, E.

AU - BenZvi, S. Y.

AU - Bernal, A.

AU - Bian, W.

AU - Bigongiari, C.

AU - Bottacini, E.

AU - Brogueira, P.

AU - Bulik, T.

AU - Busetto, G.

AU - Caballero-Mora, K. S.

AU - Camarri, P.

AU - Campos, S.

AU - Cao, W.

AU - Cao, Z.

AU - Capistrán, T.

AU - Cardillo, M.

AU - Carquin, E.

AU - Carramiñana, A.

AU - Castromonte, C.

AU - Chang, J.

AU - Chaparro, O.

AU - Chen, S.

AU - Chianese, M.

AU - Chiavassa, A.

AU - Chytka, L.

AU - Rho, C. D.

PY - 2024/9/27

Y1 - 2024/9/27

N2 - Current cosmic ray anisotropy experiments have shown a significant swing in both the direction and the amplitude of the dipole at energies around tens of TeV. Due to the charged nature of these particles, and the presence of magnetic fields in our galaxy, an underlying composition-dependent dipole swing is expected. For this reason, combining measurements of the composition and the distribution of arrival directions is essential for unveiling the astrophysical origin of this structure. In this work, we study the potential of the upcoming Southern Wide-field Gamma-ray Observatory (SWGO) in contributing to these anisotropy studies. We present a template-based method developed for reconstructing the number of muons and separating primary cosmic rays. Preliminary resolutions of 5 − 30% in the number of muons and an accuracy of 70 − 90% in the species separation are found. A clear improvement is seen by considering a dedicated muon-counter layer in a detector, highlighting the future potential of SWGO.

AB - Current cosmic ray anisotropy experiments have shown a significant swing in both the direction and the amplitude of the dipole at energies around tens of TeV. Due to the charged nature of these particles, and the presence of magnetic fields in our galaxy, an underlying composition-dependent dipole swing is expected. For this reason, combining measurements of the composition and the distribution of arrival directions is essential for unveiling the astrophysical origin of this structure. In this work, we study the potential of the upcoming Southern Wide-field Gamma-ray Observatory (SWGO) in contributing to these anisotropy studies. We present a template-based method developed for reconstructing the number of muons and separating primary cosmic rays. Preliminary resolutions of 5 − 30% in the number of muons and an accuracy of 70 − 90% in the species separation are found. A clear improvement is seen by considering a dedicated muon-counter layer in a detector, highlighting the future potential of SWGO.

UR - https://www.scopus.com/pages/publications/85212255617

M3 - Conference article

AN - SCOPUS:85212255617

SN - 1824-8039

VL - 444

JO - Proceedings of Science

JF - Proceedings of Science

M1 - 486

T2 - 38th International Cosmic Ray Conference, ICRC 2023

Y2 - 26 July 2023 through 3 August 2023

ER -

Estimating the potential of SWGO to measure the composition-dependent behaviour of the CR anisotropy

Abstract

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