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.
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 | |
| Publication status | E-pub ahead of print - 31 May 2016 |