Tau (particle) Another one is an onium atom called "true tauonium" and is difficult to detect due to tau's extremely short lifetime at low (non-relativistic) energies needed to form this atom. Its detection is important for quantum electrodynamics. Tau (particle) The tau (τ), also called the tau lepton, tau particle, or tauon, is an elementary particle similar to the electron, with negative electric charge and a spin of. Together with the electron, the muon, and the three neutrinos, it is a lepton. Like all elementary particles with half-integer spin, the tau has a corresponding antiparticle of opposite charge but equal mass and
Summer (given name) Summer (given name) Summer is an English feminine given name of recent coinage derived from the word for the season of summer, the warmest season of the year and a time people generally associate with carefree and fun activities. It's been in common use as a name since at least 1970 in English-speaking countries. Summer, along with other seasonal and nature names, came into fashion as part of the 1960s and 70s counterculture. The name was the 30th most common name given to girls born in England and Wales in 2011, was the 36th most popular name given to girls