X ray spectroscopy on Ξ－ atoms (J-PARC E03, E07 and future)
X ray spectroscopy on Ξ－ atoms (J-PARC E03, E07 and future)
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Ξ－原子的 X 射线光谱（J-PARC E03、E07 及未来）
DOI：
10.1051/epjconf/202227103001
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发表时间：
2022
影响因子：
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通讯作者：
et. al.
中科院分区：
文献类型：
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作者：
T. O. Yamamoto;...;T. Gogami;T. K. Harada;T. Nagae;et. al.
强子原子的X射线能谱是研究强子与核之间强相互作用的有力手段。在J-PARC，我们已经进行了两个实验，J-PARC E07和E03，具有双重奇异超子的强子原子，目标是世界上第一次探测到它们的X射线。第一次测量作为J-PARC E07实验的副产品使用混合乳液技术进行。第二个是J-PARC E03，是一个专门用于探测铁原子X射线的实验。本文介绍了E07和E03的初步结果和研究现状。最后对X射线光谱学的发展前景进行了展望。提出了一种新的测量方法，用于探测碳原子X射线，其中一种新的碳原子跟踪方法将被应用于实现改善的信噪比。
X-ray spectroscopy of hadronic atoms is a powerful method to study strong interaction between hadrons and nuclei. At J-PARC, we have conducted two experiments, J-PARC E07 and E03, for hadronic atoms with a doubly strange hyperon, Ξ−, aiming at the world-first detection of their X-rays. The first measurement is performed as a byproduct of J-PARC E07 experiment with the hybrid emulsion technique. The second one, J-PARC E03, is a dedicated experiment for detection of Ξ−Fe atom X rays. The preliminary results and the present status of E07 and E03 are shown in this article. Future prospects of Ξ−-atomic X-ray spectroscopy are also discussed. A new measurement has been proposed for detecting Ξ−C atom X rays, where a novel Ξ−tracking method will be applied to realize an improved signal to noise ratio.