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Mass composition of ultrahigh-energy cosmic rays with the Telescope Array Surface Detector data
https://repo.qst.go.jp/records/76433
https://repo.qst.go.jp/records/76433cec18db7-67ed-431a-894a-edc19abb23da
| Item type | 学術雑誌論文 / Journal Article(1) | |||||
|---|---|---|---|---|---|---|
| 公開日 | 2019-08-05 | |||||
| タイトル | ||||||
| タイトル | Mass composition of ultrahigh-energy cosmic rays with the Telescope Array Surface Detector data | |||||
| 言語 | ||||||
| 言語 | eng | |||||
| 資源タイプ | ||||||
| 資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
| 資源タイプ | journal article | |||||
| アクセス権 | ||||||
| アクセス権 | metadata only access | |||||
| アクセス権URI | http://purl.org/coar/access_right/c_14cb | |||||
| 著者 |
R. U., Abbasi
× R. U., Abbasi× Abe, M.× Uchihori, Y.× al., et× Uchihori, Yukio |
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| 抄録 | ||||||
| 内容記述タイプ | Abstract | |||||
| 内容記述 | The results on ultrahigh-energy cosmic rays (UHECR) mass composition obtained with the Telescope Array surface detector are presented. The analysis employs the Boosted Decision tree (BDT) multivariate analysis built upon 14 observables related to both the properties of the shower front and the lateral distribution function. The multivariate classifier is trained with Monte-Carlo sets of events induced by the primary protons and iron. An average atomic mass of UHECR is presented for energies 1018.0–1020.0 eV. The average atomic mass of primary particles shows no significant energy dependence and corresponds to ⟨lnA⟩=2.0±0.1(stat.)±0.44(syst.). The result is compared to the mass composition obtained by the Telescope Array with Xmax technique along with the results of other experiments. Possible systematic errors of the method are discussed. | |||||
| 書誌情報 |
Physical Review D 巻 99, p. 022002, 発行日 2019-01 |
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| 出版者 | ||||||
| 出版者 | American Physical Society | |||||
| ISSN | ||||||
| 収録物識別子タイプ | ISSN | |||||
| 収録物識別子 | 2470-0010 | |||||
| DOI | ||||||
| 識別子タイプ | DOI | |||||
| 関連識別子 | 10.1103/PhysRevD.99.022002 | |||||
| 関連サイト | ||||||
| 識別子タイプ | URI | |||||
| 関連識別子 | https://arxiv.org/abs/1808.03680 | |||||
