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 - 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 - Colallillo, R.
N1 - Publisher Copyright:
© Copyright owned by the author(s) under the terms of the Creative Commons.
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 -