Search for Right-Handed $W$ Bosons and Heavy $W^{'}$ in $p \bar{p}$ Collisions at $\sqrt{s} = 1.8 TeV$

We report on a search for right-handed

W

bosons

(W_{R})

with mass greater than

200 GeV {/ c}^{2}

. We used data collected with the D0 detector at the Fermilab Tevatron

p \bar{p}

collider at

\sqrt{s} = 1.8 TeV

to search for

W_{R}

decays into an electron and a massive right-handed neutrino

W_{R}^{\pm} \to e^{\pm} N_{R}

. Using the inclusive electron data, we set mass limits independent of the

N_{R}

decay:

m_{W_{R}} > 650 GeV {/ c}^{2}

and

m_{W_{R}} > 720 GeV {/ c}^{2}

at the 95% confidence level, valid for

m_{N_{R}} < \frac{1}{2} m_{W_{R}}

and

m_{N_{R}} ≪ m_{W_{R}}

, respectively. The latter also represents a new lower limit on the mass of a heavy left-handed

W

boson

(W^{'})

decaying into

e ν

. In addition, limits on

m_{W_{R}}

valid for larger values of the

N_{R}

mass are obtained assuming that

N_{R}

decays to an electron and two jets.

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Search for Right-HandedWBosons and HeavyW′inpp¯Collisions ats=1.8TeV