lepton current
1lepton — lepton1 /lep ton/, n., pl. lepta / teuh/. 1. an aluminum coin of modern Greece, the 100th part of a drachma. 2. a small copper or bronze coin of ancient Greece. [1715 25; < Gk leptón (nómisma) a small (coin), n. use of neut. of leptós small; see… …
2Flavor changing neutral current — In theoretical physics, flavor changing neutral currents (FCNCs) are expressions that change the flavor of a fermion current without altering its electric charge. If they occur in the Lagrangian, they may induce processes that have not been… …
3Greek lepton — Lepto redirects here. Lepto is sometimes used as a shortened name for Leptospirosis. Lepton pl. lepta ( Λεπτόν pl. Λεπτά ) is the name of various fractional units of currency used in the Greek speaking world from antiquity until today. The word… …
4neutral current — noun : a weak nuclear interaction between a lepton (as a neutrino) and a hadron (as a neutron) in which the electric charges of the particles remain unchanged * * * neutral current, Nuclear Physics. a hypothetical flow of particles involving the… …
5subatomic particle — or elementary particle Any of various self contained units of matter or energy. Discovery of the electron in 1897 and of the atomic nucleus in 1911 established that the atom is actually a composite of a cloud of electrons surrounding a tiny but… …
6Technicolor (physics) — Beyond the Standard Model Standard Model …
7Electron — For other uses, see Electron (disambiguation). Electron Experiments with a Crookes tube first demonstrated the particle nature of electrons. In this illustration, the profile of the cross shaped target is projected against the tube face at right… …
8Standard Model (mathematical formulation) — For a basic description, see the article on the Standard Model .This is a detailed description of the standard model (SM) of particle physics. It describes how the leptons, quarks, gauge bosons and the Higgs particle fit together. It gives an… …
9Nobel Prizes — ▪ 2009 Introduction Prize for Peace The 2008 Nobel Prize for Peace was awarded to Martti Ahtisaari, former president (1994–2000) of Finland, for his work over more than 30 years in settling international disputes, many involving ethnic,… …
10R-parity — is a concept in particle physics. In the supersymmetric extension of the Standard Model, baryon number and lepton number are no longer conserved by all of the renormalizable couplings in the theory. Since baryon number and lepton number… …
