CERN Accelerating science

Article
Report number	arXiv:1607.04304
Title	Giving top quark effective operators a boost
Author(s)	Englert, Christoph (Glasgow U. ; SUPA, UK) ; Moore, Liam (SUPA, UK ; Glasgow U. ; CERN) ; Nordström, Karl (Glasgow U. ; SUPA, UK ; U. Heidelberg, ITP) ; Russell, Michael (SUPA, UK ; Glasgow U. ; U. Heidelberg, ITP)
Publication	2016-12-10
Imprint	14 Jul 2016
Number of pages	7
Note	Comments: 9 pages, 5 figures Published version
In:	Phys. Lett. B 763 (2016) 9-15
DOI	10.1016/j.physletb.2016.10.021
Subject category	Particle Physics - Phenomenology
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 $t\bar t$ 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.
Copyright/License	arXiv nonexclusive-distrib. 1.0 publication: © 2016-2024 The Author(s) (License: CC-BY-4.0), sponsored by SCOAP³

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