标题： Ar在DarkSide-20k地面宇宙成因活化的研究 显示英文标题

标题： Study of cosmogenic activation above ground of Ar for DarkSide-20k

摘要： 由于暴露在地表宇宙射线下会产生长寿命的放射性同位素，这对寻找稀有事件（如直接探测星系暗物质粒子）的实验构成了危害。在不同的项目中都预见到了大量使用液氩的情况，比如旨在格兰萨索国家实验室寻找弱相互作用大质量粒子的 DarkSide-20k 实验。在这里，展示了在 DarkSide-20k 的背景下开展的关于氩的宇宙成活激活的研究成果。考虑尽可能真实的暴露条件，已经推导出几种同位素（包括 39Ar）的诱发活性以及预期的探测器计数率。 显示英文摘要

摘要： The production of long-lived radioactive isotopes due to the exposure to cosmic rays on the Earth's surface is an hazard for experiments searching for rare events like the direct detection of galactic dark matter particles. The use of large amounts of liquid Argon is foreseen in different projects, like the DarkSide-20k experiment, intended to look for Weakly Interacting Massive Particles at the Laboratori Nazionali del Gran Sasso. Here, results from the study of the cosmogenic activation of Argon carried out in the context of DarkSide-20k are presented. The induced activity of several isotopes, including 39Ar, and the expected counting rates in the detector have been deduced, considering exposure conditions as realistic as possible.