Hypernuclear spectroscopy is a tool to study baryon interactions with strangeness degrees of freedom. Missing-mass spectroscopy which investigates the energies at the time when the hypernucleus is produced is one of the most important methods. New experiments are planned to be performed with electron beams at Jefferson Lab, U.S. (JLab) and hadron beams at Japan Proton Accelerator Research Complex, Japan (J-PARC). We constructed new magnet spectrometers, which are designed for the hypernuclear measurement, in each experimental facility. We will provide high precision data in p-shell mirror hypernuclei to pin down the origin of charge symmetry breaking (CSB) in the ΛN interaction. In addition, ΛNN three body interaction will be investigated through accurate measurements of medium and heavy hypernuclei at Jefferson Lab. Physics-data taking for missing-mass spectroscopy of Ξ and double Λ hypernuclei with a 2-MeV resolution (FWHM) and X-ray measurements from Ξ-atoms will be carried out at J-PARC. I will introduce hypernuclear research projects at JLab and J-PARC which are scheduled to be performed in 2025—2028.　 (概要より)

https://wiki.jlab.org/tegwiki/index.php/WEPH2024

セミナータイトル (Seminar title)

JLab と J-PARC におけるストレンジネス S=-2 および -1 系ハイパー核物理研究

Strangeness S = -1 and -2 hypernuclear research at JLab and J-PARC

講演者 (Lecturer)

後神 利志 (Toshiyuki Gogami)

日時 (Date)

2024 年 10 月 18 日 (Oct 18, 2024)

場所 (Place)

チェコ科学アカデミー・原子核研究所 (Nuclear Physics Institute, Czech Academy of Sciences)