Optimization of a Monte Carlo simulation in high-energy physics
Marco Zanin · CERN Document Server (European Organization for Nuclear Research) · 1994
have been experimentally observed), plus their antiparticles ( see table 1.1 1 ) • At the present experimental precision ( 10-18 m, i.e. 10-3 of the size of the proton) both quarks and leptons are consistent with being point-like, which is in line with the notion that they are fundamental. LEPTONS and QUARKSelectric flavor mass flavor mass flavor mass charge GeV/c 2 GeV/c 2 GeV/c 2 o -1 2/3 -1/3 Ve electron < 2•10-Vµ, muon < 2.5.10-Vr tau < 3.5 -10neutrino neutrino neutrino e electron 5.1•10-4 muon 0.106 T tau 1.784