| Issue |
EPJ Web Conf.
Volume 271, 2022
HYP2022 - 14th International Conference on Hypernuclear and Strange Particle Physics
|
|
|---|---|---|
| Article Number | 03001 | |
| Number of page(s) | 5 | |
| Section | S=-2 Systems | |
| DOI | https://doi.org/10.1051/epjconf/202227103001 | |
| Published online | 09 November 2022 | |
https://doi.org/10.1051/epjconf/202227103001
X ray spectroscopy on 𝚵− atoms (J-PARC E03, E07 and future)
1 Advanced Science Research Center (ASRC), Japan Atomic Energy Agency (JAEA), Tokai, Ibaraki 319-1195, Japan
2 Department of Physics, Kyoto University, Kyoto 606-8502, Japan
3 Department of Physics, Tohoku University, Sendai, Miyagi 980-8578, Japan
4 Institute of Particle and Nuclear Studies (IPNS), High Energy Accelerator Research Organization (KEK), Tsukuba, Ibaraki 305-0801, Japan
* e-mail: tyamamo@post.j-parc.jp
Published online: 9 November 2022
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.
© The Authors, published by EDP Sciences, 2022
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