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

S. Acharya; S. Basu; P. Christiansen; O. Matonoha; A.F. Nassirpour; A. Ohlson; A. Oskarsson; T. Richert; O.V. Rueda; D. Silvermyr; N. Zurlo; ALICE Collaboration

doi:10.22323/1.395.0516

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

S. Acharya, S. Basu, P. Christiansen, O. Matonoha, A.F. Nassirpour, A. Ohlson, A. Oskarsson, T. Richert, O.V. Rueda, D. Silvermyr, N. Zurlo, ALICE Collaboration

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

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.

Original language	English
Title of host publication	37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect
Volume	395
DOIs	https://doi.org/10.22323/1.395.0516
Publication status	Published - 2022
Event	37th International Cosmic Ray Conference - Online, Berlin, Germany Duration: 2021 Jul 12 → 2021 Jul 23 Conference number: 37

Publication series

Name	Proceedings of Science
Publisher	Sissa Medialab Srl
ISSN (Print)	1824-8039

Conference

Conference	37th International Cosmic Ray Conference
Abbreviated title	ICRC2021
Country/Territory	Germany
City	Berlin
Period	2021/07/12 → 2021/07/23

Subject classification (UKÄ)

Subatomic Physics

Free keywords

Annihilation
Cosmic rays
Cosmology
Annihilation cross sections
Dark matter
Data driven
Data-driven methods
Inelastic cross sections
Near-Earth
Source functions
Galaxies

Access to Document

10.22323/1.395.0516Licence: CC BY-NC-ND

Cite this

Acharya, S., Basu, S., Christiansen, P., Matonoha, O., Nassirpour, A. F., Ohlson, A., Oskarsson, A., Richert, T., Rueda, O. V., Silvermyr, D., Zurlo, N., & ALICE Collaboration (2022). Antihelium-3 fluxes near Earth using data-driven estimates for annihilation cross section. In 37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect (Vol. 395). Article 516 (Proceedings of Science). https://doi.org/10.22323/1.395.0516

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title = "Antihelium-3 fluxes near Earth using data-driven estimates for annihilation cross section",

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. {\textcopyright} Copyright owned by the author(s) under the terms of the Creative Commons.",

keywords = "Annihilation, Cosmic rays, Cosmology, Annihilation cross sections, Dark matter, Data driven, Data-driven methods, Inelastic cross sections, Near-Earth, Source functions, Galaxies",

author = "S. Acharya and S. Basu and P. Christiansen and O. Matonoha and A.F. Nassirpour and A. Ohlson and A. Oskarsson and T. Richert and O.V. Rueda and D. Silvermyr and N. Zurlo and {ALICE Collaboration}",

year = "2022",

doi = "10.22323/1.395.0516",

language = "English",

volume = "395",

series = "Proceedings of Science",

publisher = "Sissa Medialab Srl",

booktitle = "37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect",

note = "37th International Cosmic Ray Conference, ICRC2021 ; Conference date: 12-07-2021 Through 23-07-2021",

}

Acharya, S, Basu, S , Christiansen, P , Matonoha, O , Nassirpour, AF , Ohlson, A , Oskarsson, A, Richert, T, Rueda, OV, Silvermyr, D, Zurlo, N & ALICE Collaboration 2022, Antihelium-3 fluxes near Earth using data-driven estimates for annihilation cross section. in 37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect. vol. 395, 516, Proceedings of Science, 37th International Cosmic Ray Conference, Berlin, Germany, 2021/07/12. https://doi.org/10.22323/1.395.0516

Antihelium-3 fluxes near Earth using data-driven estimates for annihilation cross section. / Acharya, S.; Basu, S.; Christiansen, P. et al.
37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect. Vol. 395 2022. 516 (Proceedings of Science).

Research output: Chapter in Book/Report/Conference proceeding › Paper in conference proceeding › peer-review

TY - GEN

T1 - Antihelium-3 fluxes near Earth using data-driven estimates for annihilation cross section

AU - Acharya, S.

AU - Basu, S.

AU - Christiansen, P.

AU - Matonoha, O.

AU - Nassirpour, A.F.

AU - Ohlson, A.

AU - Oskarsson, A.

AU - Richert, T.

AU - Rueda, O.V.

AU - Silvermyr, D.

AU - Zurlo, N.

AU - ALICE Collaboration

N1 - Conference code: 37

PY - 2022

Y1 - 2022

N2 - 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.

AB - 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.

KW - Annihilation

KW - Cosmic rays

KW - Cosmology

KW - Annihilation cross sections

KW - Dark matter

KW - Data driven

KW - Data-driven methods

KW - Inelastic cross sections

KW - Near-Earth

KW - Source functions

KW - Galaxies

U2 - 10.22323/1.395.0516

DO - 10.22323/1.395.0516

M3 - Paper in conference proceeding

VL - 395

T3 - Proceedings of Science

BT - 37th International Cosmic Ray Conference (ICRC2021) - GAI - Gamma Ray Indirect

T2 - 37th International Cosmic Ray Conference

Y2 - 12 July 2021 through 23 July 2021

ER -

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

Abstract

Publication series

Conference

Subject classification (UKÄ)

Free keywords

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Cite this