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PREPARATION STUDY FOR HADRON COLLIDER PHYSICS AT LHC

大型强子对撞机强子对撞机物理的准备研究

基本信息

批准号：
09440103
负责人：
TAKESHITA Tohru
金额：
$ 8.51万
依托单位：
SHINSHU UNIVERSITY
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B).
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 2000
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-09440103/
关键词：
HADRON COLLIDER LHC ELEMENTARY PARTICLE PHYSICS

项目摘要

We have searched for possibilities to find any signals which indicate important final states at the high energy hadron collider, such as Higgs partiacels. To search for the Higgs particles, we have found that our endcap muon trigger system has sufficiently high efficiency. On the other hand, we have found the contribution from the back ground processes depend strongly on its modeling. Especially, in the mini-jet events, which is most popular at hadron collider experiments, our simulation according to ISAJET-simulato : shows 200 times more than that of DPMJET calculations. This test has been carried out at our interesting pseud-rapidity (η) region (say |η|>1) to catch muons. Similar tests should be done at other region. We could carried out those calculation with the system which we have constructed for this purpose last year without any major troubles. We have showed those results at the ATLAS-conferences. Our conclusion at this moment is to proceed this way and to compare the models on the QCD processes. We will include Japanese NLO calculations as well. We have also tried with newly developed software named Object Oriented software. This will be managed further in the real experiment, so that this work is important. At this time, we are checking our previous results and those given by the new one. It's Important to keep consistency with the old one but also reliability.

我们一直在寻找可能性，以找到任何信号，表明在高能强子对撞机的重要的最终状态，如希格斯粒子。为了寻找希格斯粒子，我们发现我们的端盖μ子触发系统具有足够高的效率。另一方面，我们发现背景过程的贡献强烈依赖于其建模。特别是在强子对撞机实验中最常见的微喷流事件中，ISAJET-simulato：的模拟结果是DPMJET的200倍。这个实验是在我们感兴趣的赝快度（η）区域（比如|η|（1）捕捉μ子。在其他地区也应进行类似的试验。我们可以用去年为此目的而建立的系统进行这些计算，没有任何大的麻烦。我们已经在ATLAS会议上展示了这些结果。我们现在的结论是这样进行，并比较QCD过程的模型。我们还将包括日本NLO计算。我们还尝试了新开发的软件名为面向对象的软件。这将在真实的实验中得到进一步的处理，因此这项工作是重要的。在这个时候，我们正在检查我们以前的结果和新的结果。重要的是要保持与旧的一致性，但也可靠性。