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J4 ›› 2008, Vol. 43 ›› Issue (5): 14-18 .doi:

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W玻色子极化的蒙特卡罗研究

刘明辉,祝成光   

  1. 山东大学物理学院,山东 济南 250100
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2006-10-24 发布日期:2006-10-24
  • 通讯作者: 刘明辉

The Monte Carlo study of W boson polarization

LIU Ming-hui, ZHU Cheng-guang   

  1. School of Physics, Shandong University, Jinan 250100, Shandong, China
  • Received:1900-01-01 Revised:1900-01-01 Online:2006-10-24 Published:2006-10-24
  • Contact: LIU Ming-hui

摘要:

t双轻子衰变道中,利用积分亮度为0.7fb-1的模拟数据量,通过测量W玻色子衰变末态粒子角分布的方法对其极化进行了模拟研究。最终的测量结果为:F0=0.709±0.066(syst)±0.044(stat),FL=0.297±0.077(syst)±0.026(stat),FR=-0.005±0.033(syst)±0.027(stat)。

关键词: t双轻衰变; W玻色子极化; 事例重建

Abstract:

In t dileptonic decay channel, a Monte Carlo data sample with the integral luminosity about 0.7fb-1 was used to study the W boson polarization by measuring the angle distributions of the final particles from W boson. The result was: F0=0.709±0.066(syst)±0.044(stat), FL=0.297±0.077(syst)±0.026(stat), FR=-0.005±0.033(syst)±0.027(stat)。

Key words: t dileptonic decay; W boson polarization; event reconstruction

中图分类号: 

  • O572.22
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