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Abstract: We present a search for technicolor particles decaying into $b\bar b$, $b\barc$ 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 theFermilab Tevatron.
We select events matching the $W$ + 2-jets signature andrequire at least one jets to be identified as $b$-quark jets.
In the case ofexactly one vertex $b$-tagged events, we apply a neural network flavorseparator to reject contamination from charm and light quark jets.
The numberof tagged events and the invariant mass distributions of $W+2$ jets and dijetsare consistent with the Standard Model expectations.
We succeed to set a large95% confidence level excluded region on the $\pi {T}$ mass v.s.
$ ho {T}$ massplane.



Autor: Y.
Nagai, T.
Masubuchi, S.
Kim, W.-M.
Yao


Fuente: https://arxiv.org/



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