F. Abe et al., SEARCH FOR ND-GENERATION LEPTOQUARKS IN THE DIMUON PLUS DIJET CHANNELOF P(P)OVER-BAR COLLISIONS AT ROOT-S = 1.8 TEV, Physical review letters, 81(22), 1998, pp. 4806-4811
We report on a search for second generation leptoquarks (Phi(2)) using
a data sample corresponding to an integrated luminosity of 110 pb(-1)
collected at the Collider Detector at Fermilab. We present upper limi
ts on the production cross section as a function of Phi(2) mass, assum
ing that the leptoquarks are produced in pairs and decay into a muon a
nd a quark with branching ratio beta. Using a next-to-leading order qu
antum chromodynamics calculation, we extract a lower mass limit of M-P
hi 2 > 202(160) GeV/c(2) at 95% confidence level for scalar leptoquark
s with beta = 1(0.5). [S0031-4007(98)07705-9].