Study of Λ-(Λ)over-bar oscillation in quantum coherent Λ(Λ)over-bar by using J/ψ → Λ(Λ)over-bar decay

被引：22

作者：

Kang, Xian-Wei ^{[1
,2
]}

Li, Hai-Bo ^{[1
]}

Lu, Gong-Ru ^{[2
]}

机构：

[1] Inst High Energy Phys, Beijing 100049, Peoples R China

[2] Henan Normal Univ, Dept Phys, Xinxiang 453007, Peoples R China

来源：

PHYSICAL REVIEW D | 2010年 / 81卷 / 05期

基金：

中国国家自然科学基金;

关键词：

D O I：

10.1103/PhysRevD.81.051901

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We discuss the possibility of searching for the Lambda - (Lambda) over bar oscillations for coherent Lambda - (Lambda) over bar production in the J/psi -> Lambda (Lambda) over bar decay process. The sensitivity of measurement of Lambda - (Lambda) over bar oscillation in the external field at BES-III experiment is considered. These considerations indicate an alternative way to probe the Delta B = 2 amplitude in addition to neutron oscillation experiments. Both coherent and time-dependent information can be used to extract the Lambda - (Lambda) over bar oscillation parameter. With one year's luminosity at BES-III, we can set an upper limit of delta m(Lambda-(Lambda) over bar) < 10(-15) MeV at 90% confidence level, corresponding to about 10(-6) s of Lambda - <(Lambda)over bar> oscillation time.

引用

页数：4

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