Precision Study of Higher-Energy Nuclear and Particle Physics

高能核与粒子物理精密研究

• 批准号: 04044104
• 负责人: MIZUNO Yoshiyuki
• 金额: $ 3.9万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for international Scientific Research
• 财政年份: 1992
• 资助国家: 日本
• 起止时间: 1992 至 1993
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04044104/
• 关键词: Particle beam cooling; Cyclotron maser; CMC; Cooler ring; CELSIUS; Decay of light mesons; Radiative decays of mesons; Quarks and gluons; 高輝度粒子ビーム; サイクロトロン・メーザー; ハドロンの電磁崩壊; ハドロンのクォーク・グルーオン構造

1. Critical reviews and experimental studies of Cyclotron Maser Cooling (CMC)A possibility of rapid beam cooling by cyclotron maser (Cyclotron Maser Cooling, CMC) was proposed in 1990 by H.Ikegami. Critical reviews and critical experimental studies were performed within the present research program. F.Kullander has gotten his Ph.D. of Osaka University through the first experimental studies. The results were presented in an international conference in Uppsala, August 1992, by Ikegami. In October 1993, the international symposium on beam cooling was held near Geneva, where he has presented a special talk on CMC. Prior to the Symposium, we have held in August 1993 an interdsciplinary workshop for CMC in Uppsala. Results of the workshop were presented in the Symposium for beam cooling. Mizuno has discussed a relation of CMC to chaotic motion (nonlinear and dissipative), which was an invited comment in YKIS'93 for quantum chaos. Mizuno gave also a seminar in National Institute for Fusion Re … More search for the experts of Cyclotron Maser. In summary, we worked out on CMC to clarify the consequences. Experimental studies with an improved setup are in progress at Uppsala by Ikegami et al.2. Precision Studies of Radiative Decays in Light Mesons and the Quark-Gluon StructureCELSIUS cooler ring in Uppsala is unique for precision studies of rare decays of light neutral mesons. We propose a precision study of radiative decays of light mesons using this facility. We performed simulation studies to design the experiment. After some workshop studies, we have started the related experiments in RCNP, Osaka. Mizuno gave an invited lecture in an international school ISS'93 on "Hadrons and Nuclei from QCD", and also an invited talk at JPS symposium about QCD phenomenology in October 93. For a summary, Mizuno chaired an international collaboration meeting in KEK and then in Osaka, November 93 for Uppsala-KEK-RCNP collaboration and others. Physicists participated from Japan, Sweden, Poland, Russia, Germany and Israel. It is noted that another international symposium on spin-isospin nuclear responses including hadron physics was also held in Osaka, March 94, chaired by H.Ejiri with scientific secretaries Y.Mizuno and T.Suzuki. Further collaboration studies are developed thereafter based on these international symposia. Less

1.回旋脉塞冷却（CMC）的实验研究与评述1990年池上等人提出了利用回旋脉塞进行束流快速冷却的可能性（Cyclotron Maser Cooling，CMC）。在本研究计划中进行了批判性审查和批判性实验研究。F.Kullander获得了博士学位。大坂大学通过第一次实验研究。Ikegami在1992年8月于乌普萨拉举行的一次国际会议上介绍了研究结果。1993年10月，在日内瓦附近举行的束流冷却国际研讨会上，他作了关于CMC的专题报告。在研讨会之前，我们于1993年8月在乌普萨拉为CMC举办了一次跨学科讲习班。研讨会的结果在梁冷却研讨会上发表。Mizuno讨论了CMC与混沌运动（非线性和耗散）的关系，这是YKIS'93中对量子混沌的邀请评论。水野还在国立核聚变研究所举办了研讨会 ...更多信息 寻找回旋脉泽的专家。总之，我们制定了CMC，以澄清后果。Ikegami等人正在乌普萨拉进行改进装置的实验研究。轻介子辐射衰变和夸克-胶子结构的精确研究乌普萨拉的CELSIUS冷却环是精确研究轻中性介子稀有衰变的独特之处。我们提出了一个精确的研究轻介子的辐射衰变使用该设备。我们进行了模拟研究来设计实验。经过研讨会的研究，我们已经开始在RCNP，大坂的相关实验。1993年10月，水野在国际学校ISS'93作了关于“强子和核子的QCD”的特邀演讲，并在JPS研讨会上作了关于QCD现象学的特邀演讲。作为总结，水野主持了一个国际合作会议，在KEK，然后在大坂，11月93日乌普萨拉KEK RCNP合作和其他。来自日本、瑞典、波兰、俄罗斯、德国和以色列的物理学家参加了会议。值得注意的是，另一次关于包括强子物理在内的自旋-同位旋核反应的国际研讨会也于1994年3月在大坂举行，由H.Ejiri主持，科学秘书Y.Mizuno和T. Suzuki。在这些国际专题讨论会的基础上开展了进一步的合作研究。少

项目成果

Y.Mizuno et al.: "A Monte-Carlo Study of Neutron Beam Collimator for Intermediate Energy Nuclear Physics" RCNP Annual Report 1991. 64-65 (1992)

Y.Mizuno 等人：“中能核物理中子束准直器的蒙特卡洛研究”RCNP 年度报告 1991. 64-65 (1992)

Yoshiyuki MIZUNO: "¨Radiative Decays of Light Mesons¨" Proceedings of Second International Conference of Particle Production near Threshold,August 1992,Uppsala,to be published in ¨Physica Scripat¨. (1993)

Yoshiyuki MIZUNO：““光介子的辐射衰变”，第二届国际粒子生产接近阈值会议论文集，1992 年 8 月，乌普萨拉，将发表于“Physica Scripat”（1993 年）。

CERN-NMC共同研究(Y.Mizuno): "Quark and Gluon Distributions and αS from nucleon structure functions at low xBj" Physics Letters. B309. 222-230 (1993)

CERN-NMC 联合研究 (Y.Mizuno)：“夸克和胶子分布以及低 xBj 下核子结构函数的 αS”《物理快报》222-230 (1993)。

Yoshiyuki MIZUNO: "Quark Structure Functions of Hadrons and Nuclei" Proceedings of International School Seminar ISS'93 on “Hadrons and Nuclei from QCD",Aug.21-Sep.5,1993(World Scientific),to be published.354-364 (1994)

Yoshiyuki MIZUNO：“Quark Structure Functions of Hadrons and Nuclei”国际学校研讨会 ISS93 on“Hadrons and Nuclei from QCD”论文集，1993 年 8 月 21 日至 9 月 5 日（世界科学出版社），待出版。354-364 (1994)

Yoshiyuki MIZUNO: "Isospin Dependence of Quark Distributions in the Nucleon at high xBj" Proceedings of International Symposium on “Spin-Isospin Responses and Weak Processes in Hadrons and Nuclei",Osaka,March 8-10,1994(Elsevier Science),to be published.(発

Yoshiyuki MIZUNO：“Isospin Dependence of Quark Distributions in the Nucleon at high xBj”国际研讨会论文集“Spin-Isospin Responses and Weak Processes in Hadrons and Nuclei”，大阪，1994 年 3 月 8-10 日（Elsevier Science），待发表发表。