Leptons are fermions, which means that they have a spin of 1/2 (fermions have half-integer quantum spins, i.e. 1/2, or 3/2). Quarks — which are the building blocks of protons and neutrons that ...

The leptons, however, are observable directly, and their rest masses were easily reconstructed from the energy and momenta of their decay products. For the three charged leptons, ...

Leptons include charged particles—electrons, muons, taus, which interact via the weak and electromagnetic force—and their neutral neutrino counterparts, which interact only via the weak force.

Leptons are a group of particles that include the familiar electron and its two heavier, more exotic cousins, the muon and the tau (sometimes called the "tauon" for pedantry's sake).

A Composite Model of Leptons and Quarks. Michael A. Shupe in Physics Letters B, Vol. 86, No. 1, pages 87–92; September 10, 1979. A Schematic Model of Quarks and Leptons.

Particles called leptons, a category that includes electrons, also come in six flavors, each with a different mass. You may like 'Beauty' particle discovered at world's largest atom smasher could ...

Editor's Note: This story was updated on Friday Sept. 11 at 2:45 p.m. E.T. Trouble is brewing in the orderly world of subatomic physics. New evidence from the world's largest atom smasher, the ...

Charged leptons are a breed of elementary particle that comes in three masses: the lightweight electron, responsible for the electricity in our homes; the middle-weight muon; and the heavy tau. Two ...

Atomic nuclei and leptons: Milestone in the calculation of cross sections. ScienceDaily . Retrieved June 2, 2025 from www.sciencedaily.com / releases / 2021 / 08 / 210810143042.htm ...