Recent results from NA48/2

被引：0
|
作者：
Morales, Cristina Morales [1 ]
机构：
[1] Johannes Gutenberg Univ Mainz, Inst Phys, D-6500 Mainz, Germany
来源：
CHINESE PHYSICS C | 2010年 / 34卷 / 06期
关键词：
radiative K-+/- decays; NA48/2; CP violation; RADIATIVE KAON DECAYS; CP VIOLATION; K+;
D O I：
10.1088/1674-1137/34/6/023
中图分类号：
O57 [原子核物理学、高能物理学];
学科分类号：
070202 ;
摘要：
Recent results on radiative K-+/- decays from the NA48/2 experiment are reported. From the full NA48/2 data set, about a million K-+/- -> pi(+/-)pi(0)gamma decays were reconstructed. Based on this sample, the first measurement of the interference between direct photon emission and inner bremsstrahlung in K-+/- -> pi(+/-)pi(0)gamma decays was performed. Stringent limits on CP violation in this decay were also set. In addition, a precise measurement of the branching fraction of K-+/- -> pi(+/-)gamma gamma is presented. This measurement was based on a data sample of more than 1000 event candidates. Also the related decay K-+/- -> pi(+/-)e(+)e(-)gamma has first been observed. Results of the measurement of the decay rate and the decay parameter e are summarized.
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页码：749 / 752
页数：4
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