Search for contact interactions and large extra dimensions in the dilepton final state using proton-proton collisions at sqrt(s) = 8 TeV with the ATLAS detector

Tracey Berry; Graham Savage

doi:10.1016/j.nuclphysbps.2015.09.403

Search for contact interactions and large extra dimensions in the dilepton final state using proton-proton collisions at sqrt(s) = 8 TeV with the ATLAS detector

Tracey Berry
, Graham Savage

Research output: Contribution to journal › Article › peer-review

7 Downloads (Pure)

Abstract

A search is conducted for non-resonant new phenomena in dielectron and dimuon final states, originating from either contact interactions (CI) or large extra dimensions (LED). The full LHC 2012 proton-proton collision dataset
at sqrt(s) = 8 TeV recorded by the ATLAS detector is used, corresponding to 20 fb-1. The invariant mass spectrum is used as a discriminating variable and for the first time in ATLAS CI searches, angular information is used to construct
a forward-backward asymmetry to increase the search sensitivity. Lower limits are set on the CI scale between 15:4 TeV and 26:3 TeV, and on the string scale MS for large extra spatial dimensions, from 3:2 TeV to 5:0 TeV. This 8 TeV result includes additional CI helicity models and LED formalism results to the 7 TeV ATLAS search.

Original language	English
Pages (from-to)	2394–2396
Number of pages	3
Journal	Nuclear Physics B - Proceedings Supplements
Volume	273–275
Issue number	3
DOIs	https://doi.org/10.1016/j.nuclphysbps.2015.09.403
Publication status	E-pub ahead of print - 31 May 2016

Access to Document

10.1016/j.nuclphysbps.2015.09.403Licence: CC BY

http://www.sciencedirect.com/science/article/pii/S2405601415008925

Cite this

@article{ddb4fc95024f49d0935d9bb31fab5a5b,

title = "Search for contact interactions and large extra dimensions in the dilepton final state using proton-proton collisions at sqrt(s) = 8 TeV with the ATLAS detector",

abstract = "A search is conducted for non-resonant new phenomena in dielectron and dimuon final states, originating from either contact interactions (CI) or large extra dimensions (LED). The full LHC 2012 proton-proton collision dataset at sqrt(s) = 8 TeV recorded by the ATLAS detector is used, corresponding to 20 fb-1. The invariant mass spectrum is used as a discriminating variable and for the first time in ATLAS CI searches, angular information is used to construct a forward-backward asymmetry to increase the search sensitivity. Lower limits are set on the CI scale between 15:4 TeV and 26:3 TeV, and on the string scale MS for large extra spatial dimensions, from 3:2 TeV to 5:0 TeV. This 8 TeV result includes additional CI helicity models and LED formalism results to the 7 TeV ATLAS search.",

author = "Tracey Berry and Graham Savage",

year = "2016",

month = may,

day = "31",

doi = "10.1016/j.nuclphysbps.2015.09.403",

language = "English",

volume = "273–275",

pages = "2394–2396",

journal = "Nuclear Physics B - Proceedings Supplements",

issn = "0920-5632",

publisher = "Elsevier",

number = "3",

}

TY - JOUR

T1 - Search for contact interactions and large extra dimensions in the dilepton final state using proton-proton collisions at sqrt(s) = 8 TeV with the ATLAS detector

AU - Berry, Tracey

AU - Savage, Graham

PY - 2016/5/31

Y1 - 2016/5/31

N2 - A search is conducted for non-resonant new phenomena in dielectron and dimuon final states, originating from either contact interactions (CI) or large extra dimensions (LED). The full LHC 2012 proton-proton collision dataset at sqrt(s) = 8 TeV recorded by the ATLAS detector is used, corresponding to 20 fb-1. The invariant mass spectrum is used as a discriminating variable and for the first time in ATLAS CI searches, angular information is used to construct a forward-backward asymmetry to increase the search sensitivity. Lower limits are set on the CI scale between 15:4 TeV and 26:3 TeV, and on the string scale MS for large extra spatial dimensions, from 3:2 TeV to 5:0 TeV. This 8 TeV result includes additional CI helicity models and LED formalism results to the 7 TeV ATLAS search.

AB - A search is conducted for non-resonant new phenomena in dielectron and dimuon final states, originating from either contact interactions (CI) or large extra dimensions (LED). The full LHC 2012 proton-proton collision dataset at sqrt(s) = 8 TeV recorded by the ATLAS detector is used, corresponding to 20 fb-1. The invariant mass spectrum is used as a discriminating variable and for the first time in ATLAS CI searches, angular information is used to construct a forward-backward asymmetry to increase the search sensitivity. Lower limits are set on the CI scale between 15:4 TeV and 26:3 TeV, and on the string scale MS for large extra spatial dimensions, from 3:2 TeV to 5:0 TeV. This 8 TeV result includes additional CI helicity models and LED formalism results to the 7 TeV ATLAS search.

U2 - 10.1016/j.nuclphysbps.2015.09.403

DO - 10.1016/j.nuclphysbps.2015.09.403

M3 - Article

SN - 0920-5632

VL - 273–275

SP - 2394

EP - 2396

JO - Nuclear Physics B - Proceedings Supplements

JF - Nuclear Physics B - Proceedings Supplements

IS - 3

ER -