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Detector R & D for Electron-Positron Linear Collider Experiment

探测器R

基本信息

批准号：
06302019
负责人：
KOBAYASHI Tomio
金额：
$ 12.35万
依托单位：
The University of Tokyo
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (A)
财政年份：
1994
资助国家：
日本
起止时间：
1994 至 1996
项目状态：
已结题

项目摘要

The aim of this research was a detailed study of physics scenario for experiment using the next generation electron-positron collider JLC (Japan Linear Collider) and R & D of its detector.1. By upgrading simulation program for physics and detector, and taking into account the recent information from Tevatron on top quark and from LEP-2 experiments, we studied all the possible expected physics channels at JLC Phase-1 (center-of-mass energy=300-500GeV) and at JLC Phase-2 (1-1.5TeV). In particular, we made a detailed study of Higgs and SUSY particles, which are now considered to exist in relatively lower energy region, and showed that both can surely be observed in JLC Phase-1 experiment.2. By considering interface between the detector and accelerator near the collision point, we performed detector R & D in parallel with accelerator R & D.We made not only the study using the detector simulation program, but also detector R & D by constructing some prototype detector elements. As a result, it was shown that a detector of sufficiently high performance for JLC experiment can be built with the present detector technology.3. We studied physics and experimental technology for electron-positron collider experiment with polarized beams. We also studied about a possibility of converting JLC into photon-photon collider.As a result of this study, we obtained stronger motivation for the importance and urgency of JLC Phase-1, and we paved a way for optimization and detailed design of the detector.

这项研究的目的是详细研究使用下一代电子-正电子对撞机JLC(日本线性对撞机)进行实验的物理情景及其探测器的研发。通过升级物理和探测器的模拟程序，考虑到Tevatron关于顶夸克和LEP-2实验的最新信息，我们研究了JLC相1(质心能量=300-500GeV)和JLC相2(1-1.5TeV)所有可能的预期物理通道。特别是，我们对目前被认为存在于相对较低能区的Higgs和SUSY粒子进行了详细的研究，并表明在JLC第一阶段实验中肯定可以观察到这两种粒子。考虑到探测器与加速器在碰撞点附近的界面，我们将探测器研发与加速器研发并行进行。我们不仅利用探测器模拟程序进行研究，而且通过构造一些原型探测器元件来进行探测器研发。结果表明，利用现有的检测技术，可以构建出足够高性能的JLC实验用检测器。研究了偏振束电子-正电子对撞机实验的物理和实验技术。我们还研究了将JLC转换为光子-光子对撞机的可能性，从而为JLC一期工程的重要性和紧迫性提供了更强的动力，为探测器的优化和详细设计铺平了道路。