Rare Kaon Decays at CERN SPS

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作者：

Kozhuharov, Venelin

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来源：

7TH INTERNATIONAL CONFERENCE OF THE BALKAN PHYSICAL UNION VOLS 1 AND 2 | 2009年 / 1203卷

关键词：

kaon decays; rare decays; standard model; new physics;

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中图分类号：

O59 [应用物理学];

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摘要：

Since their discovery the K-mesons continue to provide valuable information to the theory of the interactions between the elementary particles. In two years of data taking the NA48/2 experiment at CERN SPS recorded more than 4 billion K-+/-->pi(+)pi(-)pi(+) decays devoted to the search of CP violation in the charged kaon system The huge statistics allows also a precise study of rare kaon decays The results from the investigation of K-+/- -> pi(+/-)e(+)e(-) decay will be shown with their interpretation within several theoretical models The continuation of the kaon program at CERN is the NA62 experiment devoted to the measurement of Br(K-+/- -> pi(+/-) v (v) over bar) decay with a precision of 10% in two years of data taking The planned detector setup and the expected background and signal events will be presented During 2007 a dedicated run devoted to NA62 prototype tests and study of K-e2 decays was taken. The preliminary results from the study of Ke2 decays and the ratio R-K = Gamma(K-+/- -> e(+/-)v)/Gamma(K-+/-->mu(+/-) v) at the NA48/2 and NA62 experiments will be shown

引用

页码：97 / 102

页数：6

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