First, the spectrum of electrons and positrons generated by dark matter is generally too soft unless the annihilations proceed mostly to leptons ... and muons and taus) rather than to quarks ...

Recent research in heavy flavor physics has focused on decay processes involving these heavy quarks ... which posits that all leptons (such as electrons and muons) should interact with the ...

It describes the forces and behavior of the Universe’s fundamental particles: quarks, leptons, and bosons. It is a very comprehensive framework backed by extensive experimental evidence and is ...