Measurement of the kaon to pion production ratio with the Super-Kamiokande

Super-Kamiokande collaboration

研究成果: ジャーナルへの寄稿会議記事査読

抄録

Cosmic-ray muons are generated from the decay of mesons which are secondary particles produced via hadronic interaction between primary cosmic-ray particles and atmospheric nuclei at the upper the atmosphere. The mesons such pions and kaons mostly decay into muons immediately, reflecting the details of the hadronic interactions depending on their energy and lifetime. The modulation of the cosmic-ray muon rate as well as the flux and the atmospheric kaon-to-pion production ratio are important to determine the flux and energy of the atmospheric neutrino. In particular, the kaon-to-pion production ratio rK/π is measured with the correlation coefficient αT between the cosmic-ray muon rate in the underground detector and the atmospheric temperature. As a result, we obtained the correlation coefficient rK/π = 0.85 ± 0.01 (statistical uncertainty only) and rK/π = 0.12 ± 0.03 (statistical uncertainty only) using the data taken in 10 years at the Super-Kamiokande detector. In this article, we report the current status of measurement of the modulation of the comic-ray muon and the atmospheric kaon-to-pion production ratio.

本文言語英語
論文番号214
ジャーナルProceedings of Science
444
出版ステータス出版済み - 2024/09/27
イベント38th International Cosmic Ray Conference, ICRC 2023 - Nagoya, 日本
継続期間: 2023/07/262023/08/03

ASJC Scopus 主題領域

  • 一般

フィンガープリント

「Measurement of the kaon to pion production ratio with the Super-Kamiokande」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル