experimental study of 5-quark state including charm pair in nucleon at J-PARC

2023 Fiscal Year Final Research Report

• Project/Area Number: 20H01935
• Research Category: Grant-in-Aid for Scientific Research (B)
• Allocation Type: Single-year Grants
• Section: 一般
• Review Section: Basic Section 15020:Experimental studies related to particle-, nuclear-, cosmic ray and astro-physics
• Research Institution: High Energy Accelerator Research Organization
• Principal Investigator: Morino Yuhei 大学共同利用機関法人高エネルギー加速器研究機構, 素粒子原子核研究所, 研究機関講師 (50715240)
• Project Period (FY): 2020-04-01 – 2024-03-31
• Keywords: 原子核物理

Outline of Final Research Achievements

The J-PARC high-p beamline was completed in the first fiscal year of this adoption, and the commissioning run of the J-PARC E16 experiment, which is the basis of this experimental study, started. Since most of the hardware in this research is shared with the E16 experiment, it was essential to get the E16 experiment on track, and then proceeded with collecting the information necessary to advance this research. Because this experiment was launched on a new beamline, unexpected difficulties arose, including the bunch-like time structure of the supplied proton beam, but by taking measures to overcome these, we were able to smoothly collect data. Although physics data collection will take place in the future, the adoption of this project has allowed us to make sufficient preparations for this research.

Free Research Field

ハドロン物理

Academic Significance and Societal Importance of the Research Achievements

本研究によって明らかにしたこと、克服した困難のうちの一定の割合は新規に建設したJ-PARC high-p ビームラインの固有の特性による物であった。このビームラインは本研究のみならず、今後様々な研究で活用される事が期待されており、本研究の波及効果はそれらに及ぶであろう。これが本研究の学術的、社会的意義だと言える。