Publications [#309291] of Seog Oh

Papers Published

1. Aaltonen, TEA, Search for resonant production of $t\overline{t}$ pairs in $4.8{\,}{\,}{\mathrm{fb}}^{\mathbf{-}1}$ of integrated luminosity of $p\overline{p}$ collisions at $\sqrt{s}\mathbf{=}1.96\text{\,}\text{\,}\mathrm{TeV}$, Phys. Rev. D, vol. 84 no. 7 (October, 2011), pp. 072004, American Physical Society [doi]
   (last updated on 2026/01/19)

   Abstract:
   We search for resonant production of tt̄ pairs in 4.8fb-1 integrated luminosity of pp̄ collision data at √s=1.96TeV in the lepton+jets decay channel, where one top quark decays leptonically and the other hadronically. A matrix-element reconstruction technique is used; for each event a probability density function of the tt̄ candidate invariant mass is sampled. These probability density functions are used to construct a likelihood function, whereby the cross section for resonant tt̄ production is estimated, given a hypothetical resonance mass and width. The data indicate no evidence of resonant production of tt̄ pairs. A benchmark model of leptophobic Z′→tt̄ is excluded with m Z′<900GeV/c2 at 95% confidence level. © 2011 American Physical Society.