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All Things EFT
Probing axion like particle effective couplings at Kaon experiments
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Europe/Zurich
Description
The two Kaon factories, KOTO and NA62, are at the cutting edge of the intensity frontier, with an unprecedented numbers of long lived and charged Kaons being measured and analyzed.
These experiments have currently a unique opportunity to search for dark sectors. In this talk, I will explore the complementarity of NA62 and KOTO in probing axion-like-particle (ALP) models, where the ALP is produced from Kaon decays. Particularly, I will show how effective couplings between the ALP and Standard Model particles can be probed. I will highlight theoretical progress in the calculation of the rates for K -> pi ALP, starting from the ALP effective Lagrangian. I will also propose possible new experimental searches that can be performed in the future by the two collaborations, and compare their reach with the reach of other high intensity experiments.
