Reveal of Origin of Repulsive Core in Baryon-Baryon Interaction by Differential Cross Section Measurement of Sigma p scattering

通过西格玛 p 散射的微分截面测量揭示重子-重子相互作用中排斥核的起源

• 批准号: 23684011
• 负责人: MIWA Koji
• 金额: $ 17.8万
• 依托单位: Tohoku University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Young Scientists (A)
• 财政年份: 2011
• 资助国家: 日本
• 起止时间: 2011-04-01 至 2014-03-31
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-23684011/
• 关键词: ストレンジネス核物理; ストレンジネス物理; 光検出器開発

In order to reveal the origin of the short range repulsive force in the nuclear force, we are planning to perform a Sigma proton scattering experiment. In this experiment, a large amount of Sigma particle should be produced by handling a high intensity beam. Scattered protons should be detected by a Scattered Proton Detector which has a large acceptance for scattered proton. In this research, the essential detectors for this experiment was developed. At first we installed a beam line fiber detector in the K1.8 beamline, which enabled use to use a 6 MHz beam, that is, 10 times larger intensity than that of previous experiment. We also developed a prototype of a scattered proton detector which consisted of a cylindrical fiber tracker and BGO calorimeter. We performed a pp scattering experiment to evaluate the performance of the detector system by checking the identification performance of scattering events and so on. We confirmed that this detector system had an enough performance.

为了揭示核力量中短距离排斥力的起源，我们计划进行Sigma质子散射实验。在此实验中，应通过处理高强度束来产生大量的Sigma粒子。散射的质子应通过散射的质子检测器检测到，该检测器对散射质子具有很大的接受度。在这项研究中，开发了该实验的基本检测器。首先，我们在K1.8梁线上安装了光束线纤维探测器，该梁线可用于使用6 MHz梁，即比以前的实验高10倍。我们还开发了一个散射质子检测器的原型，该原型由圆柱纤维跟踪器和BGO量热仪组成。我们通过检查散射事件的识别性能等，进行了PP散射实验，以评估探测器系统的性能。我们确认该检测器系统的性能足够。

项目成果

Experimental plan of Sp scattering experiment at J-PARC

J-PARC Sp散射实验的实验计划

• DOI: 10.1051/epjconf/20122005001
• 发表时间: 2012
• 期刊: EPJ Web of Conference
• 作者: K. Miwa;R. Honda;Y. Matsumoto;H. Kanda;H. Tamura;M. Ieiri and J-PARC P40 collaboration
• 通讯作者: M. Ieiri and J-PARC P40 collaboration

Development of Fiber-MPPC detector for Sigma proton scattering experiment

用于Sigma质子散射实验的光纤-MPPC探测器的开发

• 发表时间: 2011
• 作者: T.Kobayashi;et al;松本祐樹
• 通讯作者: 松本祐樹

Status of Sigma p scattering experiment(E40)and Development of beamline fiber tracker

Sigma p散射实验(E40)现状及光束线光纤跟踪仪的研制

• 发表时间: 2012
• 作者: 江副 祐一郎;Yuki Matsumoto
• 通讯作者: Yuki Matsumoto

New experimental plan of Sigma p scattering experiment at J-PARC

J-PARC Sigma p 散射实验的新实验计划

• 发表时间: 2012
• 作者: A.Mitsuda;et al;身内賢太朗;Koji Miwa
• 通讯作者: Koji Miwa

大強度ビームトラッキング用ファイバー位置検出器の性能評価

高强度光束跟踪光纤位置检测器的性能评估

• 发表时间: 2012
• 作者: W.Shinke;T.Kobayashi;et al;松本祐樹
• 通讯作者: 松本祐樹