…call the strongly interacting particles. There was a law of conservation of strangeness. And this was proposed by Nishijima and Gelman. And when Gelman, working with Peiss, was analyzing the consequences of this more carefully, he came across a most…

…interacting particles. There was a law of conservation of strangeness. And this was proposed by Nishijima and Gelman. And when Gelman, working with Peiss, was analyzing the consequences of this more carefully, he came across a most remarkable phenomenon. And…

…plus and a pi minus with a lifetime of 1.0 times 10 to the minus 10 seconds. That had already been known. Now, what Gelman and Pais noticed, of course, was that the k bar also can disintegrate. This is a weak. decay. And notice that the strangeness is…

…and how they came to it. You start out to write the behavior of the amplitude to find a particle as a k0. To imitate Gelman and Peiss, I leave h out. Why? Because you take units so that h equals 1. That's a modern theoretical physics way of doing…

…we know the value of beta from the decay rate. We don't know the value of alpha. But that's as far as Peiss and Gelman were able to go. Nobody could calculate and can to this day calculate either alpha or beta. But the prediction is that the…