Hyperon
Hyperons themselves decay due to weak force. There are dozens of different hyperon combinations. For example, a Λ (lambda) hyperon has a charge of 0, and is often written as Λ0. When it decays, it usually creates one proton, and one antipion. Like many forms of weak force decay, there is more than one possible outcome. A Λ0 also has a significantly lower, but still possible, chance to decay into a neutron and an uncharged pion. Λ0 hyperons have an average lifespan of 2.6x10−10 seconds, which makes it one of the longest living hyperons.