Document Type
Article
Publication Date
3-19-2010
Abstract
We present a search for the technicolor particles ρT and πT in the process pp̄→ρT→WπT at a center of mass energy of √s=1.96TeV. The search uses a data sample corresponding to approximately 1.9fb-1 of integrated luminosity accumulated by the CDF II detector at the Fermilab Tevatron. The event signature we consider is W→ ν and πT→bb̄, bc̄ or bū depending on the πT charge. We select events with a single high-pT electron or muon, large missing transverse energy, and two jets. Jets corresponding to bottom quarks are identified with multiple b-tagging algorithms. The observed number of events and the invariant mass distributions are consistent with the standard model background expectations, and we exclude a region at 95% confidence level in the ρT-πT mass plane. As a result, a large fraction of the region m(ρT)=180-250GeV/c2 and m(πT)=95-145GeV/c2 is excluded. © 2010 The American Physical Society.
Publication Source (Journal or Book title)
Physical Review Letters
Recommended Citation
Aaltonen, T., Adelman, J., Álvarez González, B., Amerio, S., Amidei, D., Anastassov, A., Annovi, A., Antos, J., Apollinari, G., Apresyan, A., Arisawa, T., Artikov, A., Asaadi, J., Ashmanskas, W., Attal, A., Aurisano, A., Azfar, F., Badgett, W., Barbaro-Galtieri, A., Barnes, V., Barnett, B., Barria, P., Bartos, P., Bauer, G., Beauchemin, P., Bedeschi, F., Beecher, D., & Behari, S. (2010). Search for technicolor particles produced in association with a W boson at CDF. Physical Review Letters, 104 (11) https://doi.org/10.1103/PhysRevLett.104.111802