No abstract

No abstract

The two{jet invariant mass spectrum as measured in the UA2 experiment is used to search for additional heavy vector bosons decaying to two{jets. The mass of an additional W boson that couples to fermions with a V + A form is constrained to be greater than 261 GeV to the 90% condence level. A limit on the production cross section of additional W and Z bosons is given as a function of the boson mass. A limit on the production of excited quarks is also given as a function of the excited quark mass.

NOMAD is a neutrino oscillation experiment designed to search for appearance in the CERN-SPS wide band beam. Signal detection relies on the identication of charged current i n teractions using kinematic criteria. The analysis of the 1995 data sample yields no oscillation signal. Combining all studied decay modes, a limit of sin 2 2 < 4:2 10 3 is obtained for large m 2 at the 90% condence level.