Speaker
Jesse Alan Heilman
(University of California Riverside (US))
Description
A search is presented for standard model (SM) production of four top quarks in pp collisions at the LHC. Using Run-1 data corresponding to an integrated luminosity of 19$fb^{-1}$, a combination of kinematic reconstruction and multivariate techniques is used to distinguish between the small signal ($\sigma^{SM}_{t \bar{t} t \bar{t}} \sim 1 fb$) and backgrounds in the lepton + jets channel. The data are consistent with expectations for SM background and signal, and an upper limit of 32 fb is set at a 95% confidence level on $\sigma^{SM}_{t \bar{t} t \bar{t}}$, where a limit of 32 ± 17 fb is expected. Further comments on preparation and prospects for Run-2 are also presented.
| Oral or Poster Presentation | Oral |
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Authors
Freya Blekman
(IIHE, Vrije Universiteit Brussel (BE))
James Michael Keaveney
(Vrije Universiteit Brussel (VUB) - Interuniversitary Institute for high energies (IIHE) (BE))
Jesse Alan Heilman
(University of California Riverside (US))
Joel Goldstein
(University of Bristol (GB))
Lana Margaret Gwen Beck
(University of Bristol (GB))
Steve Wimpenny
(University of California Riverside (US))
