Search for heavy toplike quarks using lepton plus jets events in 1.96 TeV pp̄ collisions

Journal article

We present the results of a search for pair production of a new heavy toplike quark t′ decaying to a W boson and another quark using the Collider Detector at FermilabII detector in runII of the Tevatron pp̄ collider. Using a data sample corresponding to 760pb-1 of integrated luminosity, we fit the observed spectrum of total transverse energy and reconstructed t′ quark mass to a combination of standard model processes and t′ pair production. We see no evidence for t′t̄′ production, and we infer a lower limit of 256GeV/c2 on the mass of the t′ at 95% C.L. assuming standard strong couplings for the t′. © 2008 The American Physical Society.

Authors: Aaltonen, T; Adelman, J; Akimoto, T; Albrow, MG; Álvarez González, B

• Journal: Physical Review Letters
• Volume: 100
• Issue: 16
• Publication date: 2008-04-22
• DOI: 10.1103/PhysRevLett.100.161803
• EISSN: 1079-7114
• ISSN: 0031-9007
• Language: English