Misbehaving kaons could hint at the existence of new particles
Certain extremely rare decays seem to be happening more often than expected
![KOTO detector](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2020/02/020320_ec_kaon_feat.jpg?fit=1028%2C579&ssl=1)
New subatomic particles could explain a surprisingly large number of decays of particles called kaons seen in the KOTO experiment (detector shown).
Japan Proton Accelerator Research Complex (J-PARC) Center