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Antihelium-3 fluxes near Earth using data-driven estimates for annihilation cross section

Acharya, S. ; Basu, S. LU orcid ; Christiansen, P. LU ; Matonoha, O. LU ; Nassirpour, A.F. LU orcid ; Ohlson, A. LU ; Oskarsson, A. LU ; Richert, T. LU ; Rueda, O.V. LU and Silvermyr, D. LU orcid , et al. (2022) 37th International Cosmic Ray Conference In Proceedings of Science 395.
Abstract
Antinuclei found in cosmic rays could provide a smoking gun signal for dark matter as this signal is virtually background free. The study of 3He cosmic rays requires the knowledge of their production, propagation in the galaxy and annihilation cross-section. While the former two have been already estimated with data-driven methods, there were no experimental data available for the 3He inelastic cross section. We measured for the first time the inelastic cross section of 3He using the ALICE detector itself as a target. To study the effect of 3He annihilation in the galaxy and estimate the transparency of the galaxy, the 3He source functions and annihilation cross sections were implemented in GALPROP. © Copyright owned by the author(s) under... (More)
Antinuclei found in cosmic rays could provide a smoking gun signal for dark matter as this signal is virtually background free. The study of 3He cosmic rays requires the knowledge of their production, propagation in the galaxy and annihilation cross-section. While the former two have been already estimated with data-driven methods, there were no experimental data available for the 3He inelastic cross section. We measured for the first time the inelastic cross section of 3He using the ALICE detector itself as a target. To study the effect of 3He annihilation in the galaxy and estimate the transparency of the galaxy, the 3He source functions and annihilation cross sections were implemented in GALPROP. © Copyright owned by the author(s) under the terms of the Creative Commons. (Less)
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author collaboration
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
keywords
Annihilation, Cosmic rays, Cosmology, Annihilation cross sections, Dark matter, Data driven, Data-driven methods, Inelastic cross sections, Near-Earth, Source functions, Galaxies
host publication
37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect
series title
Proceedings of Science
volume
395
article number
516
conference name
37th International Cosmic Ray Conference
conference location
Berlin, Germany
conference dates
2021-07-12 - 2021-07-23
external identifiers
  • scopus:85145021468
ISSN
1824-8039
DOI
10.22323/1.395.0516
language
English
LU publication?
yes
id
879d763b-842f-41c6-b472-d11dea3bfefe
date added to LUP
2023-01-16 11:10:07
date last changed
2023-05-10 16:38:28
@inproceedings{879d763b-842f-41c6-b472-d11dea3bfefe,
  abstract     = {{Antinuclei found in cosmic rays could provide a smoking gun signal for dark matter as this signal is virtually background free. The study of 3He cosmic rays requires the knowledge of their production, propagation in the galaxy and annihilation cross-section. While the former two have been already estimated with data-driven methods, there were no experimental data available for the 3He inelastic cross section. We measured for the first time the inelastic cross section of 3He using the ALICE detector itself as a target. To study the effect of 3He annihilation in the galaxy and estimate the transparency of the galaxy, the 3He source functions and annihilation cross sections were implemented in GALPROP. © Copyright owned by the author(s) under the terms of the Creative Commons.}},
  author       = {{Acharya, S. and Basu, S. and Christiansen, P. and Matonoha, O. and Nassirpour, A.F. and Ohlson, A. and Oskarsson, A. and Richert, T. and Rueda, O.V. and Silvermyr, D. and Zurlo, N.}},
  booktitle    = {{37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect}},
  issn         = {{1824-8039}},
  keywords     = {{Annihilation; Cosmic rays; Cosmology; Annihilation cross sections; Dark matter; Data driven; Data-driven methods; Inelastic cross sections; Near-Earth; Source functions; Galaxies}},
  language     = {{eng}},
  series       = {{Proceedings of Science}},
  title        = {{Antihelium-3 fluxes near Earth using data-driven estimates for annihilation cross section}},
  url          = {{http://dx.doi.org/10.22323/1.395.0516}},
  doi          = {{10.22323/1.395.0516}},
  volume       = {{395}},
  year         = {{2022}},
}