J. Alitti et al., A SEARCH FOR NEW INTERMEDIATE VECTOR BOSONS AND EXCITED QUARKS DECAYING TO 2-JETS AT THE CERN (P)OVER-BAR-P COLLIDER, Nuclear physics. B, 400(1-3), 1993, pp. 3-22
The two-jet invariant mass spectrum as measured in the UA2 experiment
is used to search for additional heavy vector bosons decaying to two-j
ets. 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% confi
dence level. A limit on the production cross section of additional W a
nd Z bosons is given as a function of the boson mass. A limit on the p
roduction of excited quarks is also given as a function of the excited
quark mass.