4-9 June 2012
Life Sciences Centre, UBC
Canada/Pacific timezone
<strong><font color="#cc0000">Abstract submission has closed</font></strong>

Contact Interactions (non resonant dilepton final state searches)

4 Jun 2012, 16:00
West Atrium (Life Sciences Centre, UBC)

West Atrium

Life Sciences Centre, UBC

University of British Columbia Vancouver, BC Canada
Poster Standard Model & Beyond 1D: Poster Session and Coffee Break


Vikas Bansal (University of Victoria (CA))


A wide range of new physics phenomena can produce modifications to the dilepton mass spectra predicted by the standard model (SM) such as quark/lepton compositeness, extra dimensions, and new gauge bosons. The predicted form of these deviations is often either a resonance or an excess in the number of events in the spectra at high mass. This work presents a search for contact interactions in the dielectron and dimuon channels using data from proton-proton collisions produced by the LHC at sqrt(s) = 7 TeV and recorded by the ATLAS detector. The data sample, collected in 2011, corresponds to an integrated luminosity of 5 fb-1. No significant deviations from the standard model are observed. Using a Bayesian approach, we set 95% CL lower limits on the energy scale of llqq contact interactions.

<strong>Collaboration Name</strong><br /><font color="#000099">Please enter the name of<br />the collaboration or group<br />using the acronym, as in:<br /><font color="#ff0000">ABC Collaboration</font>

ATLAS Collaboration

<strong>E-mail Address</strong> vikas.bansal@cern.ch

Primary author

Vikas Bansal (University of Victoria (CA))

Presentation Materials