Speaker
Description
The J-PARC is a research complex comprised Material and Life Science Experimental Facility (MLF), Neutrino Experimental Facility and Hadron Experimental Facility (HEF). The HEF is designed as a multi-purpose facility for a variety of particle, hadron and nuclear physics programs. It provides intense secondary beamlines which deliver pions and/or kaons. One of the main topics is hyper-nuclear physics realized with an intense kaon beam. In addition, taking advantage of the three-times more intense pion beam, the interaction between nucleon and hyperon has been investigated. The talk highlights recent activities at the facility and presents near-future plans looking forward.
The new beamline, named as high-momentum beamline has been constructed. It provides primary protons which are directly used for the experiment to measure di-electrons produced in 30 GeV pA reactions. The medium modification of vector mesons is minutely inspected. The commissioning of beamline and the spectrometer was performed in 2021. The detail and status of the experiment will be reported.
The HEF continue to evolve to extend researches and provide new opportunities. The high-momentum beamline will be utilized as a secondary beamline, enable us to start baryon spectroscopies for cascade and charm. The plan of the facility upgrade is also announced and the detail will be presented.
| speaker affiliation | Kyoto Univ. |
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