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Search for contact interactions in dimuon events from pp collisions at root s=7 TeV with the ATLAS detector

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Article number011101
<mark>Journal publication date</mark>1/07/2011
<mark>Journal</mark>Physical Review D
Issue number1
Volume84
Number of pages18
<mark>State</mark>Published
<mark>Original language</mark>English

Abstract

A search for contact interactions has been performed using dimuon events recorded with the ATLAS detector in proton-proton collisions at root 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. These limits are the most stringent to date for mu mu qq contact interactions.

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Published by the American Physical Society under the terms of the Creative Commons Attribution 3.0 License. Further distribution of this work must maintain attribution to the author(s) and the published article’s title, journal citation, and DOI. © 2011 CERN, for the ATLAS Collaboration