Experiments on Time Reversal Invariance in Low Energy Nuclear Physics
Since the famous experiment of Cronin, Fitch, Turlay, and Christenson(1) we know that CP invariance is violated somewhere in the weak decay process of the Ko L, though to be sure, the details are not clear. Unlike parity violation, which is maximal and ubiquitous in every weak interaction process, the phenomenon of CP violation is small and, so far, is found only in the neutral kaon system. This unhappy situation has stood through more than twenty years of improving, but fruitless, searches for evidence of a violation of time reversal invariance in other systems.
KeywordsAnisotropy Helium Radioactive Isotope Radon Sine
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