Search for Technicolor Particles Produced in Association with W Boson at CDF

Abstract

We present a search for technicolor particles decaying into $b\bar{b}$, $b\bar{c}$ or $b\bar{u}$ and produced in association with $W$ bosons in $p\bar{p}$ collisions at $\sqrt{s}=1.96\mathrm{TeV}$. The search uses approximately $1.9{\mathrm{fb}}^{-1}$ of the dataset accumulated in the CDF II detector at the Fermilab Tevatron. We select events matching the $W$ + 2-jets signature and require at least one jets to be identified as $b$-quark jets. In the case of exactly one vertex $b$-tagged events, we apply a neural network flavor separator to reject contamination from charm and light quark jets. The number of tagged events and the invariant mass distributions of $W+2$ jets and dijets are consistent with the Standard Model expectations. We succeed to set a large 95% confidence level excluded region on the ${\pi }_T$ mass v.s. ${\rho }_T$ mass plane.

Poster session at the Hadron Collider Physics Symposium (HCP2008), Galena, Illinois, USA, May 27-31, 2008; 5 pages, LaTeX

Cited by in corpus (1)

• Low-Scale Technicolor at the Tevatron and LHC