Search for first generation scalar leptoquarks in pp collisions at √s = 7 TeV with the ATLAS detector
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Aad-2012-Search for first gen.pdf
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Author(s)
Taylor, Frank E.
Date Issued
February 2012
Journal
Physics Letters B
Publisher
Elsevier
Citation
Aad, G., B. Abbott, J. Abdallah, A.A. Abdelalim, A. Abdesselam, O. Abdinov, B. Abi, et al. “Search for First Generation Scalar Leptoquarks in Pp Collisions at √s = 7 TeV with the ATLAS Detector.” Physics Letters B 709, no. 3 (March 2012): 158–176. © 2012 CERN
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Final published version
Abstract
We report a search for first generation scalar leptoquarks using 1.03 fb[superscript −1] of proton–proton collisions data produced by the Large Hadron Collider at √s = 7 TeV and recorded by the ATLAS experiment. Leptoquarks are sought via their decay into an electron or neutrino and a quark, producing events with two oppositely charged electrons and at least two jets, or events with an electron, missing transverse momentum and at least two jets. Control data samples are used to validate background predictions from Monte Carlo simulation. In the signal region, the observed event yields are consistent with the background expectations. We exclude at 95% confidence level the production of first generation scalar leptoquark with masses m[subscript LQ] < 660 (607) GeV when assuming the branching fraction of a leptoquark to a charged lepton is equal to 1.0 (0.5).
MIT Department
Massachusetts Institute of Technology. Department of Physics
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DOI of Published Version
https://doi.org/10.1016/j.physletb.2012.02.004
