Kaons at CERN: status and prospects

18th International Symposium on Particles Strings and Cosmology

Anzivino, Giuseppina^1

Department of Physics, University of Perugia, INFN, via A. Pascoli, 06123 Perugia, Italy^1

关键词: Branching ratio;    Chiral perturbation theory;    Measurements of;    Rare decays;    Rare kaon decay;    Status and prospect;    Stringent test;    The standard model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/485/1/012051/pdf
DOI  :  10.1088/1742-6596/485/1/012051

来源: IOP

【 摘 要 】

The NA48/2 and NA62 experiments at CERN exploit the decay in flight technique to study rare kaon decays and the underlying physics. Two selected topics will be presented in this paper. The first is a stringent test of the Chiral Perturbation Theory, obtained by new measurements of the K±R π±γγ decay performed by the two experiments. The second one is the measurement of the Branching Ratio of the very rare decay K+R π+v at 10% level, that will provide a test of the Standard Model and possible extensions beyond it.