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Extra quarks decaying to dark matter beyond the narrow width approximation

Extra quarks decaying to dark matter beyond the narrow width approximation
Extra quarks decaying to dark matter beyond the narrow width approximation
We explore the effects induced by a finite width in processes of pair production of a heavy top-quark partner and its subsequent decay into a bosonic Dark Matter (DM) candidate -- either scalar or vector -- and a SM up-type quark at the Large Hadron Collider (LHC). We discuss the configurations of masses, widths and couplings where this phenomenology can be important in a simple model with just one such objects. Finally, we emphasise the correct definition of signal and background to be adopted as well as stress the importance of new dedicated experimental searches.
hep-ph
EConf
Prager, Hugo
49e874e6-4343-4cc7-a85c-d6e78b0a8ab0
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
O'Brien, Dermot
25b3b9ee-f780-4762-b049-72dbec38aed3
Panizzi, Luca
e8ade38e-ee5d-4e2d-8307-3286a8b92740
Prager, Hugo
49e874e6-4343-4cc7-a85c-d6e78b0a8ab0
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
O'Brien, Dermot
25b3b9ee-f780-4762-b049-72dbec38aed3
Panizzi, Luca
e8ade38e-ee5d-4e2d-8307-3286a8b92740

Prager, Hugo, Moretti, Stefano, O'Brien, Dermot and Panizzi, Luca (2017) Extra quarks decaying to dark matter beyond the narrow width approximation. In Proceedings of the Fifth Annual Conference on Large Hadron Collider Physics. EConf.. (Submitted)

Record type: Conference or Workshop Item (Paper)

Abstract

We explore the effects induced by a finite width in processes of pair production of a heavy top-quark partner and its subsequent decay into a bosonic Dark Matter (DM) candidate -- either scalar or vector -- and a SM up-type quark at the Large Hadron Collider (LHC). We discuss the configurations of masses, widths and couplings where this phenomenology can be important in a simple model with just one such objects. Finally, we emphasise the correct definition of signal and background to be adopted as well as stress the importance of new dedicated experimental searches.

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More information

Submitted date: 13 June 2017
Additional Information: 5 pages, 6 figures, proceeding LHCp 2017
Keywords: hep-ph
Organisations: Theory Group, Physics & Astronomy

Identifiers

Local EPrints ID: 411774
URI: http://eprints.soton.ac.uk/id/eprint/411774
PURE UUID: 0ef6ff38-9e6b-40eb-87d0-2ef1ffc8276e

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Date deposited: 26 Jun 2017 16:30
Last modified: 31 Jul 2020 16:32

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