Search for $t \bar{t}$ resonances in the lepton plus jets final state in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV
(2008) Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics — Vol. 668, p. 98 (2008)
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- Abstract
- We present a search for a narrow-width heavy resonance decaying into top quark pairs ( X→tt¯ ) in pp¯ collisions at s=1.96 TeV using approximately 0.9 fb−1 of data collected with the DØ detector at the Fermilab Tevatron Collider. This analysis considers tt¯ candidate events in the lepton plus jets channel with at least one identified b jet and uses the tt¯ invariant mass distribution to search for evidence of resonant production. We find no evidence for a narrow resonance X decaying to tt¯ . Therefore, we set upper limits on σX⋅B(X→tt¯) for different hypothesized resonance masses using a Bayesian approach. For a Topcolor-assisted technicolor model, the existence of a leptophobic Z′ boson with mass MZ′<700 GeV and width ΓZ′=0.012MZ′ can be excluded at the 95% C.L.
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Tanasijczuk, A. J., D0, & et al. (2008). Search for $t \bar{t}$ resonances in the lepton plus jets final state in $p \bar{p}$ collisions at $\sqrt{s}$ = 1.96-TeV. Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics, 668, 98. https://doi.org/10.1016/j.physletb.2008.08.027 (Original work published 2008)