Search for the Production of Narrow tb̅ Resonances in 1.9 fb-1 of pp̅ Collisions at sqrt[s] =1.96 TeV

Journal Article (Academic article)

We present new limits on resonant tb̅ production in pp̅ collisions at sqrt[s]=1.96  TeV, using 1.9  fb-1 of data recorded with the CDF II detector at the Fermilab Tevatron. We reconstruct a candidate tb̅ mass in events with a lepton, neutrino candidate, and two or three jets, and search for anomalous tb̅ production as modeled by W′→tb̅ . We set a new limit on a right-handed W′ with standard model-like coupling, excluding any mass below 800  GeV/c2 at 95% C.L. The cross section for any narrow, resonant tb̅ production between 750 and 950  GeV/c2 is found to be less than 0.28 pb at 95% C.L. We also present an exclusion of the W′ coupling strength versus W′ mass over the range 300--950  GeV/c2.

Full Text

Duke Authors

Cited Authors

  • Aaltonen, T; others,

Published Date

  • 2009

Published In

  • Phys. Rev. Lett.

Volume / Issue

  • 103 / 4

Start / End Page

  • 041801 -

Published By

PubMed ID

  • 19659340