Antihelium-3 fluxes near Earth using data-driven estimates for annihilation cross section
(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)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/879d763b-842f-41c6-b472-d11dea3bfefe
- author
- author collaboration
- organization
- publishing date
- 2022
- 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}}, }