| 用能量排序法辨别胶子和夸克喷注的研究 |
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| 引用本文： | 张昆实.用能量排序法辨别胶子和夸克喷注的研究[J].宝鸡文理学院学报(自然科学版),2003,23(2):131-134. |
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| 作者姓名： | 张昆实 |
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| 作者单位： | 荆州师范学院,物理系,湖北,荆州,434104 |
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| 基金项目： | 湖北省教委科研项目;2001A41009; |
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| 摘 要： | 改进了用于从正负电子碰撞的三喷注事件中辨别胶子喷注和夸克喷注的能量方法，使挑选喷注的纯度提高到71％。计算了用改进后的能量方法挑选出的胶子喷注和夸克喷注的平均多重数的比值R＝(N）g／(N）q结果为1．30＜R＜1．50。这些结果与QCD的预言以及NRS，OPAL和DELPHI实验组获得的正负电子碰撞的实验数据符合。
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| 关 键 词： | 能量排序 胶子喷注 夸克喷注 多重数 正负电子碰撞 |
Study on the identification of gluon and quark jets through energy ordering |
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| ZHANG Kunshi.Study on the identification of gluon and quark jets through energy ordering[J].Journal of Baoji College of Arts and Science(Natural Science Edition),2003,23(2):131-134. |
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| Authors: | ZHANG Kunshi |
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| Abstract: | The energy ordering method for identification of gluon and quark jets from 3-jet events in e+e- collisions has been improved with a selecting purity of 71%. The ratio of the mean multiplicity between gluon and quark jets,R=〈N〉g/〈N〉q,selected using the improved method is calculated.It is turned out that 1.30＜R＜1.50 .These results agree with the e+e- experimental data obtained by NRS,OPAL and DELPHI collaborations as well as the expectations of QCD. |
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| Keywords: | energy ordering gluon jet quark jet multiplicity |
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