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Search for technicolor particles produced in association with a W boson at CDF

Abstract: We present a search for the technicolor particles ?T and ?T in the process p¯p??T?W?T at a center of mass energy of ?s=1.96??TeV. The search uses a data sample corresponding to approximately 1.9??fb?1 of integrated luminosity accumulated by the CDF II detector at the Fermilab Tevatron. The event signature we consider is W??? and ?T?b¯b, b¯c or b¯u depending on the ?T 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 ?T??T mass plane. As a result, a large fraction of the region m(?T)=180?250??GeV/c2 and m(?T)=95?145??GeV/c2 is excluded.

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 Autoría: 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.E., Barnett B.A., Barria P., Bartos P., Bauer G., Beauchemin P.H., Bedeschi F., Beecher D., Behari S., Bellettini G., Bellinger J., Benjamin D., Beretvas A., Bhatti A., Binkley

 Fuente: Physical Review Letters, 2010, 104(11), 111802

Editorial: American Physical Society

 Fecha de publicación: 01/03/2010

Nº de páginas: 7

Tipo de publicación: Artículo de Revista

 DOI: 10.1103/PhysRevLett.104.111802

ISSN: 0031-9007,1079-7114

Url de la publicación: https://doi.org/10.1103/PhysRevLett.104.111802