Search for Contact Interactions in Dimuon Events from pp Collisions at sqrt(s) = 7 TeV with the ATLAS Detector

Understand

A search for contact interactions has been performed using dimuon events recorded with the ATLAS detector in proton-proton collisions at sqrt(s) = 7 TeV.

• The data sample corresponds to an integrated luminosity of 42 pb-1.
• No significant deviation from the Standard Model is observed in the dimuon mass spectrum, allowing the following 95% C.L.
• limits to be set on the energy scale of contact interactions: Lambda > 4.9 TeV (4.5 TeV) for constructive (destructive) interference in the left-left isoscalar compositeness model.