Scientific article
Open access

Search for contact interactions and large extra dimensions in dilepton events from pp collisions at √s=7  TeV with the ATLAS detector

ContributorsATLAS Collaboration
Publication date2013

A search for nonresonant new phenomena, originating from either contact interactions or large extra spatial dimensions, has been carried out using events with two isolated electrons or muons. These events, produced at the LHC in proton-proton collisions at √s=7  TeV, were recorded by the ATLAS detector. The data sample, collected throughout 2011, corresponds to an integrated luminosity of 4.9 and 5.0  fb−1 in the e+e− and μ+μ− channels, respectively. No significant deviations from the Standard Model expectation are observed. Using a Bayesian approach, 95% confidence level lower limits ranging from 9.0 to 13.9 TeV are placed on the energy scale of ℓℓqq contact interactions in the left-left isoscalar model. Lower limits ranging from 2.4 to 3.9 TeV are also set on the string scale in large extra dimension models. After combining these limits with results from a similar search in the diphoton channel, slightly more stringent limits are obtained.

Citation (ISO format)
ATLAS Collaboration. Search for contact interactions and large extra dimensions in dilepton events from <em>pp</em> collisions at √s=7  TeV with the ATLAS detector. In: Physical review. D. Particles, fields, gravitation, and cosmology, 2013, vol. 87, n° 01, p. 015010. doi: 10.1103/PhysRevD.87.015010
Main files (1)
Article (Published version)
ISSN of the journal1550-2368

Technical informations

Creation09/08/2014 1:29:00 PM
First validation09/08/2014 1:29:00 PM
Update time03/14/2023 9:44:39 PM
Status update03/14/2023 9:44:39 PM
Last indexation01/16/2024 11:47:31 AM
All rights reserved by Archive ouverte UNIGE and the University of GenevaunigeBlack