Search for the Production of Narrow tb Resonances in 1.9 fb{sup -1} of pp Collisions at sq root(s)=1.96 TeV

Journal Article · Fri Jul 24 00:00:00 EDT 2009 · Physical Review Letters

DOI:https://doi.org/10.1103/PHYSREVLETT.103.041801· OSTI ID:21347073

Aaltonen, T; Maki, T; Mehtala, P; Orava, R; Osterberg, K; Saarikko, H; Remortel, N van ^[1]; Adelman, J; Brubaker, E; Fedorko, W T; Grosso-Pilcher, C; Ketchum, W; Kim, Y K; Krop, D; Kwang, S; Lee, H S; Paramonov, A A; Schmidt, M A; Shiraishi, S; Shochet, M ^[2]

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1. Division of High Energy Physics, Department of Physics, University of Helsinki and Helsinki Institute of Physics, FIN-00014, Helsinki (Finland)
2. Enrico Fermi Institute, University of Chicago, Chicago, Illinois 60637 (United States)

We present new limits on resonant tb production in pp collisions at sq root(s)=1.96 TeV, using 1.9 fb{sup -1} of data recorded with the CDF II detector at the Fermilab Tevatron. We reconstruct a candidate tb mass in events with a lepton, neutrino candidate, and two or three jets, and search for anomalous tb production as modeled by W{sup '}->tb. We set a new limit on a right-handed W{sup '} with standard model-like coupling, excluding any mass below 800 GeV/c{sup 2} at 95% C.L. The cross section for any narrow, resonant tb production between 750 and 950 GeV/c{sup 2} is found to be less than 0.28 pb at 95% C.L. We also present an exclusion of the W{sup '} coupling strength versus W{sup '} mass over the range 300-950 GeV/c{sup 2}.

• OSTI ID: 21347073
• Journal Information: Physical Review Letters, Vol. 103, Issue 4; Other Information: DOI: 10.1103/PhysRevLett.103.041801; (c) 2009 The American Physical Society; ISSN 0031-9007
• Country of Publication: United States
• Language: English

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