Results and Perspectives in Particle Physics

addition ALEPH allowed analysis angle average background beam calculation calorimeter charged Collaboration collider compared constant contribution corrections correlations corresponding cosmic rays coupling cross section cuts decay defined dependence described detector determined direction distribution effects efficiency electron energy error estimated et al expected experimental experiments field Figure final fraction function given gluon hadronic heavy interactions Italy leading lepton Lett lifetime light limit mass measured meson mixing momentum Monte Carlo muon neutrino Nucl observed obtained parameter particles photon Phys physics possible precision prediction present production quark range ratio References region relative resolution sample scale scattering selection shape shown shows signal spectrum Standard Model statistics structure symmetry systematic Table theory tracks transverse uncertainty University vertex