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Exclusion and discovery via Drell-Yan in the 4DCHM

Exclusion and discovery via Drell-Yan in the 4DCHM
Exclusion and discovery via Drell-Yan in the 4DCHM
Searches for Z' bosons are most sensitive in the dilepton channels at hadron colliders. Whilst finite width and interference effects do affect the modifications the presence of BSM physics makes to Standard Model (SM) contributions, generic searches are often designed to minimize these. The experimental approach adopted works well in the case of popular models that predict a single and narrow Z' boson allowing these effects to effectively be neglected. Conversely, finite width and interference effects may have to be taken into account in experimental analyses when such Z' states are wide or where several states are predicted. We explore the consequences of these effects in the 4-Dimensional Composite Higgs Model (4DCHM) which includes multiple new Z' bosons and where the decays of these resonances to non-SM fermions can result in large widths.
hep-ph
Accomando, Elena
8ebc75d7-bd92-4f70-a974-7bc15ebf088f
Barducci, Daniele
d0289bdd-ac34-493c-95cd-36d811070ecc
Curtis, Stefania De
7bf1f7cf-535f-4551-8d05-806c57cfa2d1
Fiaschi, Juri
a417f04d-05ec-4bff-bdee-ba20ac560fa7
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Shepherd-Themistocleous, Claire
a29b4897-1b61-4774-8df7-0f507d905d81
Accomando, Elena
8ebc75d7-bd92-4f70-a974-7bc15ebf088f
Barducci, Daniele
d0289bdd-ac34-493c-95cd-36d811070ecc
Curtis, Stefania De
7bf1f7cf-535f-4551-8d05-806c57cfa2d1
Fiaschi, Juri
a417f04d-05ec-4bff-bdee-ba20ac560fa7
Moretti, Stefano
b57cf0f0-4bc3-4e02-96e3-071255366614
Shepherd-Themistocleous, Claire
a29b4897-1b61-4774-8df7-0f507d905d81

Accomando, Elena, Barducci, Daniele, Curtis, Stefania De, Fiaschi, Juri, Moretti, Stefano and Shepherd-Themistocleous, Claire (2016) Exclusion and discovery via Drell-Yan in the 4DCHM. Proceedings of Science, DIS2015, [105].

Record type: Article

Abstract

Searches for Z' bosons are most sensitive in the dilepton channels at hadron colliders. Whilst finite width and interference effects do affect the modifications the presence of BSM physics makes to Standard Model (SM) contributions, generic searches are often designed to minimize these. The experimental approach adopted works well in the case of popular models that predict a single and narrow Z' boson allowing these effects to effectively be neglected. Conversely, finite width and interference effects may have to be taken into account in experimental analyses when such Z' states are wide or where several states are predicted. We explore the consequences of these effects in the 4-Dimensional Composite Higgs Model (4DCHM) which includes multiple new Z' bosons and where the decays of these resonances to non-SM fermions can result in large widths.

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More information

Published date: 26 January 2016
Keywords: hep-ph
Organisations: Physics & Astronomy, Theory Group

Identifiers

Local EPrints ID: 411849
URI: http://eprints.soton.ac.uk/id/eprint/411849
PURE UUID: 5f9c38e3-7864-40e3-ae9f-129332aa8415

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Date deposited: 27 Jun 2017 16:31
Last modified: 13 Mar 2019 19:43

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