Feasibility study on an analysis of CR helium flux with the CALET detector based on an extended acceptance

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ICRC2023_082.pdf (802 KB)

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https://pos.sissa.it/444/082/

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https://doi.org/10.22323/1.444.0082
 http://hdl.handle.net/11603/36424

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UMBC Center for Space Sciences and Technology (CSST) / Center for Research and Exploration in Space Sciences & Technology II (CRSST II)
UMBC Faculty Collection

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Author/Creator ORCID

https://orcid.org/0000-0003-2916-6955
 https://orcid.org/0000-0002-9247-3010

Date

2023-08-17

Type of Work

conference papers and proceedings
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Citation of Original Publication

Mattiazzi, Marco, Oscar Adriani, Yosui Akaike, Katsuaki Asano, Yoichi Aaoka, Eugenio Berti, et al. “Feasibility Study on an Analysis of CR Helium Flux with the CALET Detector Based on an Extended Acceptance.” In Proceedings of 38th International Cosmic Ray Conference — PoS(ICRC2023), 444:082. SISSA Medialab, 2023. https://doi.org/10.22323/1.444.0082.

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This work was written as part of one of the author's official duties as an Employee of the United States Government and is therefore a work of the United States Government. In accordance with 17 U.S.C. 105, no copyright protection is available for such works under U.S. Law.
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Abstract

In this work, we present a feasibility study aiming at a measurement of the cosmic ray (CR) helium flux utilizing CALET data with a significantly enhanced statistical precision. It is based on a wider geometrical acceptance compared to the current CALET analysis while ensuring a correct identification of charged particles crossing the detector. The expected statistical enhancement for the all-acceptance configuration is nearly a factor of two compared to the previous analysis, over the entire energy range from tens of GeV to hundreds of TeV. Preliminary assessment of efficiencies and background sources has been carried out based on energy-dependent charge selections.