Search for a new heavy gauge bosonW′with event signatureelectron+missingtransverse energy inpp¯collisions ats=1.96 TeV

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Abstract

We present a search for a new heavy charged vector boson ${W}^{\ensuremath{'}}$ decaying to an electron-neutrino pair in $p\overline{p}$ collisions at a center-of-mass energy of 1.96 TeV. The data were collected with the CDF II detector and correspond to an integrated luminosity of $5.3\text{ }\text{ }{\mathrm{fb}}^{\ensuremath{-}1}$. No significant excess above the standard model expectation is observed and we set upper limits on $\ensuremath{\sigma}\ifmmode\cdot\else\textperiodcentered\fi{}\mathcal{B}({W}^{\ensuremath{'}}\ensuremath{\rightarrow}e\ensuremath{\nu})$. Assuming standard model couplings to fermions and the neutrino from the ${W}^{\ensuremath{'}}$ boson decay to be light, we exclude a ${W}^{\ensuremath{'}}$ boson with mass less than $1.12\text{ }\text{ }\mathrm{TeV}/{c}^{2}$ at the 95% confidence level.

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