Fermilab has an amazing presence on the Web. One of their sites is Fermilab at work. There’s a YouTube channel as well. There’s a splendid 10.5 minute video by Dr. Don Lincoln on “Why is the Weak Force weak?” Excellent graphics (including Feynman diagrams) and well presented. Published on Apr 14, 2017 The subatomic world… Continue reading Why is the Weak Force weak?
In the chapter “Beyond this horizon,” Sean Carroll discusses two related problems involving properties of empty space. Before discussing the vacuum energy problem, he profiles the so-called hierarchy problem in the cosmic energy scale. It’s about the effects of virtual particles. The energy scale that characterizes the weak interactions (the Higgs field value, 246 GeV)… Continue reading Sisyphean hierarchy