中国物理B ›› 2009, Vol. 18 ›› Issue (6): 2213-2216.doi: 10.1088/1674-1056/18/6/018

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Experimental sensitivity on searching for CP violation at BES-III

赵明刚, 荣刚, 马海龙, 张达华   

  1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  • 收稿日期:2008-08-07 修回日期:2009-01-16 出版日期:2009-06-20 发布日期:2009-06-20
  • 基金资助:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10491300, 10225524, 10225525, 10425523, 10625524 and 10521003), the Natural Science Foundation of the Chinese Academy of Sciences (Grant No KJ 95T-03).

Experimental sensitivity on searching for CP violation at BES-III

Zhao Ming-Gang(赵明刚)†, Rong Gang(荣刚), Ma Hai-Long(马海龙), and Zhang Da-Hua(张达华)   

  1. Institute of High Energy Physics, Chinese Academy of Sciences, Beijing 100049, China
  • Received:2008-08-07 Revised:2009-01-16 Online:2009-06-20 Published:2009-06-20
  • Supported by:
    Project supported by the National Natural Science Foundation of China (Grant Nos 10491300, 10225524, 10225525, 10425523, 10625524 and 10521003), the Natural Science Foundation of the Chinese Academy of Sciences (Grant No KJ 95T-03).

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摘要： The CP violation in the D system is predicted to be an unobserved level in the Standard Model. In this paper, we describe the method of searching for CP violation decay processes with the coherently produced D0\bar D0 mesons from the ψ(3770) decay. The CP violation decay processes can be searched for at the BES-III experiment. The experimental sensitivity for searching for the CP violation can reach about a 10-4 level with a ψ(3770) data sample of about 20 fb-1.

关键词: CP violation, charm meson, BES-III

Abstract: The CP violation in the D system is predicted to be an unobserved level in the Standard Model. In this paper, we describe the method of searching for CP violation decay processes with the coherently produced $D^0\bar{D}^0$ mesons from the $\psi$(3770) decay. The CP violation decay processes can be searched for at the BES-III experiment. The experimental sensitivity for searching for the CP violation can reach about a 10-4 level with a $\psi$(3770) data sample of about 20 fb-1.

Key words: CP violation, charm meson, BES-III

中图分类号:  (Charge conjugation, parity, time reversal, and other discrete symmetries)

  • 11.30.Er
12.10.-g (Unified field theories and models) 13.25.Gv (Decays of J/ψ, Υ, and other quarkonia)