Search for Pair Production of First-Generation Scalar Leptoquarks in pp Collisions at [sqrt]s=7 TeV
Name
Khachatryan-2011-Search for Pair Prod.pdf
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Author(s)
Alver, Burak Han
Bendavid, Joshua L.
Busza, Wit
Butz, Erik M.
Cali, Ivan Amos
Chan, M.
Dutta, Valentina
Everaerts, Pieter Bruno Bart
Gomez-Ceballos, Guillelmo
Hahn, Kristian Allan
Alternative Title
Search for Pair Production of First-Generation Scalar Leptoquarks in pp Collisions at √s=7 TeV
Date Issued
May 2011
Journal
Physical Review Letters
Publisher
American Physical Society
Citation
Khachatryan, V. et al. (CMS Collaboration)© "Search for Pair Production of First-Generation Scalar Leptoquarks in pp Collisions at [sqrt]s=7 TeV." Phys. Rev. Lett. 106, 201802 (2011) [15 pages]© 2011 CERN, for the CMS Collaboration.
Version
Final published version
Abstract
A search for pair production of first-generation scalar leptoquarks is performed in the final state containing two electrons and two jets using proton-proton collision data at [sqrt]s=7 TeV. The data sample used corresponds to an integrated luminosity of 33 pb[superscript -1] collected with the CMS detector at the CERN LHC. The number of observed events is in good agreement with the predictions for the standard model background processes, and an upper limit is set on the leptoquark pair production cross section times beta[superscript 2] as a function of the leptoquark mass, where beta is the branching fraction of the leptoquark decay to an electron and a quark. A 95% confidence level lower limit is set on the mass of a first-generation scalar leptoquark at 384 GeV for beta=1, which is the most stringent direct limit to date.
MIT Department
Massachusetts Institute of Technology. Department of Physics
Massachusetts Institute of Technology. Laboratory for Nuclear Science
Persistent DSpace Link
DOI of Published Version
http://prl.aps.org/abstract/PRL/v106/i20/e201802
