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Discriminating Z' signals in semileptonic top pair production at the LHC

Discriminating Z' signals in semileptonic top pair production at the LHC
Discriminating Z' signals in semileptonic top pair production at the LHC
We investigate the sensitivity of top pair production to the properties of different Beyond the Standard Model theories embedding a new neutral boson. We include six-fermion decay, and account for the full tree-level Standard Model ttbar interference, with all intermediate particles allowed off-shell. We focus on those observables best suited to the lepton-plus-jets final state at the LHC, and simulate the resulting experimental conditions, including kinematic requirements and top quark pair reconstruction in the presence of missing transverse energy and combinatorial ambiguity in quark-top assignment. In particular, we demonstrate the use of asymmetry observables to probe the coupling structure of a new neutral resonance, in addition to cases in which these asymmetries may even form complementary discovery observables in combination with the differential cross section.
hep-ph
EConf
Cerrito, Lucio
1b1392ba-721f-4c1c-a770-762842d99085
Millar, Declan
8c08f8d5-6d69-4e60-851d-41c6dfc0d4c6
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Spanò, Francesco
a37b739b-5bb1-454d-8e8a-6a7dc2bbcf7b
Lysak, Roman
Kvita, Jiri
Cerrito, Lucio
1b1392ba-721f-4c1c-a770-762842d99085
Millar, Declan
8c08f8d5-6d69-4e60-851d-41c6dfc0d4c6
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Spanò, Francesco
a37b739b-5bb1-454d-8e8a-6a7dc2bbcf7b
Lysak, Roman
Kvita, Jiri

Cerrito, Lucio, Millar, Declan, Moretti, Stefano and Spanò, Francesco (2016) Discriminating Z' signals in semileptonic top pair production at the LHC. Lysak, Roman and Kvita, Jiri (eds.) In Proceedings of the 9th International Workshop on Top Quark Physics. vol. C1609195, EConf..

Record type: Conference or Workshop Item (Paper)

Abstract

We investigate the sensitivity of top pair production to the properties of different Beyond the Standard Model theories embedding a new neutral boson. We include six-fermion decay, and account for the full tree-level Standard Model ttbar interference, with all intermediate particles allowed off-shell. We focus on those observables best suited to the lepton-plus-jets final state at the LHC, and simulate the resulting experimental conditions, including kinematic requirements and top quark pair reconstruction in the presence of missing transverse energy and combinatorial ambiguity in quark-top assignment. In particular, we demonstrate the use of asymmetry observables to probe the coupling structure of a new neutral resonance, in addition to cases in which these asymmetries may even form complementary discovery observables in combination with the differential cross section.

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More information

Published date: 9 December 2016
Additional Information: 4 pages, 1 figure, 1 table. arXiv admin note: substantial text overlap with arXiv:1610.04074
Keywords: hep-ph
Organisations: Theory Group

Identifiers

Local EPrints ID: 411773
URI: http://eprints.soton.ac.uk/id/eprint/411773
PURE UUID: 42b6050c-2478-416e-9553-09f17e9fc94b

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

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