(Copies available exclusively from MIT Libraries, Rm. Each pair is approximately equally probable. Hadrons can interact through all four fundamental interactions. The three possible charged lepton pair types are electron-positron, muon-antimuon, and tau-antitau pairs. It is heavy enough that it can decay into hadrons (particles made of quarks held together by the strong force like protons, neutrons, pions). So were left with an up quark and an anti-up quark, which together form a neutral pi0 as well as a lepton. At normal energies, the weak interaction will change the strange quark into an up quark, a lepton and an antineutrino. Leptons from the decay of heavy flavour show large transverse momentum with respect to the closest jet. The LHCb results strengthen hints of a violation of lepton flavour universality. Answer (1 of 2): Tau is a lepton - a spin-1/2 particle (like an electron). K- mesons are made up of an anti-up quark and a strange quark. (eg: electrons, muons and neutrinos) Leptons interact through the weak interaction, the gravitational interaction and through the electromagnetic interaction when charged. Roth, in Proceedings of the 31st International Conference on High Energy Physics Ichep 2002, 2003 3 INCLUSIVE BOTTOM PRODUCTION. All measurements are in agreement with the Standard Model. Leptons are particles and antiparticles that do not interact with the strong interaction. Samples of ~500 Z^0 to mu^+mu^ - events at 9 energies in the Z^0 region and ~400 Z ^0 to e^+e ^- events at sqrt. ![]() ![]() Recall the mass chain and Beta decay plots of Fig. In the process the nucleus emits a beta particle (either an electron or a positron) and quasi-massless particle, the neutrino. The leptonic decay modes of the Z^0 particle are studied using e^+e ^- to mu ^+mu^-(gamma) and large angle e^+e^- to e^+e^-(gamma) data from the 元 detector at the LEP e^+e ^- collider at CERN. The top quark pair production and decay into leptons with at least one being a tau lepton is studied in the framework of the CDF experiment at the Tevatron. The beta decay is a radioactive decay in which a proton in a nucleus is converted into a neutron (or vice-versa). We consider neutrino mixing and oscillations in quantum field theory and compute the neutrino lepton charge in decay processes where neutrinos are generated.
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