Search for Second Generation Leptoquarks in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8$ TeV

We present the results of a search for second generation leptoquarks

S_{2}

using

19.3 {pb}^{- 1}

of data collected at the Collider Detector at Fermilab (CDF) in

p \bar{p}

collisions at

\sqrt{s} = 1.8

TeV during the 1992–93 collider run. We have searched for

S_{2} \bar{S_{2}}

pairs assuming that each leptoquark decays to a muon

+

quark with a branching ratio

β

. We find two candidate events, consistent with an expected background of

1.11 \pm 0.48

. We obtain upper limits on

σ (p \bar{p} \to S_{2} \bar{S_{2}}) β^{2}

as a function of

M_{S_{2}}

. Using a Monte Carlo prediction for

S_{2} \bar{S_{2}}

pair production, we exclude

M_{S_{2}} < 131 GeV / c^{2}

for

β = 1

and

M_{S_{2}} < 96 GeV / c^{2}

for

β = 0.5

at 95% C.L.

This publication has 23 references indexed in Scilit:

Search for Second Generation Leptoquarks inpp¯Collisions ats=1.8TeV