L3 events at 183 GeV


New Physics candidates

Candidate for the production of a SM Higgs boson ee --> HZ --> bbqq. Two well separated secondary vertices from b-quark decays are visible on the right figure.
Candidate for production of SUSY Higgs bosons ee --> hA which decay into b-quarks. Two well separated secondary vertices from b-quark decays are visible on the right figure.
Candidate for chargino pair production ee --> chi_+ chi_- --> W* chi_1 W* chi_1 and hadronic decay of the W bosons (transverse and longitudinal view).
Two candidates for neutralino production ee --> chi_2 chi_1 --> Z* chi_1 chi_1 and hadronic decay of the Z boson.
Candidate events for scalar lepton production: Left: scalar muon pair; Right: scalar electron (or tau) pair.
Candidate events for production of excited leptons: Left: Single excited muon; Right: Single excited tau
Candidate events for production of excited electrons: Left: Single excited electron; Right: Pair of excited electron
Multi photon final state: ee --> 4 photons (transverse and longitudinal views). Probably there is an undetected fifths photon radiated along the beam pipe.
Three views of the same monojet event.


L3 Webmaster 26 January 1999