D<SUP>0</SUP>-D<SUP>0</SUP> mixing and CP violation at BES-Ⅲ

LI Hai-Bo

doi:10.1088/1674-1137/32/6/013

Chinese Physics C> 2008, Vol. 32> Issue(6) : 470-476 DOI: 10.1088/1674-1137/32/6/013

D⁰-D⁰ mixing and CP violation at BES-Ⅲ

LI Hai-Bo

Institute of High Energy Physics, CAS, Beijing 100049, China

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Abstract：
Recently, both BaBar and Belle experiments found evidences of neutral D mixing. In this paper, we discuss the sensitivities of the measurements of D mixing parameters at BESⅢ. With CP tag technique at ψ(3770) peak, the extraction of the strong phase difference in D⁰ →Kπ decay at BESⅢ are
discussed. We also make an estimate on the measurements of the mixing rate R _M by using the coherent data at ψ(3770) peak. The CP violation in D system is predicted with an unobserved level in the Standard Model. Any significant CP violation in the D system indicates the existence of new physics. The sensitivity
of the measurements of CP violation in the D system is estimated in the coherent D decays. Finally, the search for the rare D decays are discussed, in which some of the forbidden decays are smoking gun of new physics.

References

[1]

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LI Hai-Bo. D⁰-D⁰ mixing and CP violation at BES-Ⅲ[J]. Chinese Physics C, 2008, 32(6): 470-476. doi: 10.1088/1674-1137/32/6/013

LI Hai-Bo. D⁰-D⁰ mixing and CP violation at BES-Ⅲ[J]. Chinese Physics C, 2008, 32(6): 470-476. doi: 10.1088/1674-1137/32/6/013 shu

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Received: 2008-01-11
Revised: 2008-01-19

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

D⁰-D⁰ mixing and CP violation at BES-Ⅲ

Institute of High Energy Physics, CAS, Beijing 100049, China

Received Date: 2008-01-11

Accepted Date: 2008-01-19

Available Online: 2008-06-05

Abstract:

Recently, both BaBar and Belle experiments found evidences of neutral D mixing. In this paper, we discuss the sensitivities of the measurements of D mixing parameters at BESⅢ. With CP tag technique at ψ(3770) peak, the extraction of the strong phase difference in D⁰ →Kπ decay at BESⅢ are
discussed. We also make an estimate on the measurements of the mixing rate R _M by using the coherent data at ψ(3770) peak. The CP violation in D system is predicted with an unobserved level in the Standard Model. Any significant CP violation in the D system indicates the existence of new physics. The sensitivity
of the measurements of CP violation in the D system is estimated in the coherent D decays. Finally, the search for the rare D decays are discussed, in which some of the forbidden decays are smoking gun of new physics.

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D⁰-D⁰ mixing and CP violation at BES-Ⅲ