Tevatron Signal for an Unmixed Radion

Abstract

The recent observation by the CDF Collaboration of an excess in $W$ plus dijet events, where the dijet invariant mass shows a 3.2$\ddot{I}ƒ$ peak around $144\pm 5$ GeV, is shown to be consistent with the production of a radion $\hat{I}¦$ of mass in this range, in association with a $W$ boson. It is shown that the $\hat{I}¦$, which is known to be similar to the Higgs boson in many aspects, differs from it in having a much larger cross-section for $q\bar{q}\to W\hat{I}¦$ and in decaying principally to gluons, rather than $b\bar{b}$ pairs. These appear to be the precise features demanded by the new particle interpretation of the CDF events. No modifications of the underlying model are required.

This paper has been temporarily withdrawn by the authors due to some errors in the cross-section computation