CPLEAR experiment at CERN: CP, T, and CPT measurements in the neutral kaon system

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|
作者：
Zavrtanik, D [1 ]
机构：
[1] Jozef Stefan Inst, SI-1000 Ljubljana, Slovenia
来源：
INTERNATIONAL EUROPHYSICS CONFERENCE ON HIGH ENERGY PHYSICS | 1999年
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中图分类号：
O412 [相对论、场论]; O572.2 [粒子物理学];
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摘要：
Using strangeness tagging at production time, CPLEAR measures time-dependent asymmetries between K-o and (K) over bar(o) decay rates for pionic and semileptonic decays. In the latter, strangeness tagging at decay time with the lepton charge is also performed. A complete set of parameters describing CP, T and CPT violation in neutral kaon mixing and decay can be determined. This includes the first direct experimental observation of time reversal violation. The mass equality of K-o and (K) over bar(o) is tested to the level of 10(-19) GeV. In the framework of quantum mechanics for open systems, CPLEAR results allow physics to be probed on a scale approaching the Planck mass.
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页码：794 / 797
页数：4
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