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Giving top quark effective operators a boost

High Energy Physics - Phenomenology 2017-05-08 v2 High Energy Physics - Experiment

Abstract

We investigate the prospects to systematically improve generic effective field theory-based searches for new physics in the top sector during LHC run 2 as well as the high luminosity phase. In particular, we assess the benefits of high momentum transfer final states on top EFT-fit as a function of systematic uncertainties in comparison with sensitivity expected from fully-resolved analyses focusing on ttˉt\bar t production. We find that constraints are typically driven by fully-resolved selections, while boosted top quarks can serve to break degeneracies in the global fit. This demystifies and clarifies the importance of high momentum transfer final states for global fits to new interactions in the top sector from direct measurements.

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Cite

@article{arxiv.1607.04304,
  title  = {Giving top quark effective operators a boost},
  author = {Christoph Englert and Karl Nordstrom and Liam Moore and Michael Russell},
  journal= {arXiv preprint arXiv:1607.04304},
  year   = {2017}
}

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Published version

R2 v1 2026-06-22T14:55:13.483Z