High Energy Physics - Experiment
[Submitted on 12 Sep 2015 (v1), last revised 27 Apr 2016 (this version, v3)]
Title:Search for single production of scalar leptoquarks in proton-proton collisions at sqrt(s) = 8 TeV
View PDFAbstract:A search is presented for the production of both first- and second-generation scalar leptoquarks with a final state of either two electrons and one jet or two muons and one jet. A data sample of proton-proton collisions at center-of-mass energy sqrt(s) = 8 TeV recorded with the CMS detector corresponds to an integrated luminosity of 19.6 inverse femtobarns. Upper limits are set on both the first- and second-generation leptoquark production cross sections as functions of the leptoquark mass and the leptoquark couplings to a lepton and a quark. Results are compared with theoretical predictions to obtain lower limits on the leptoquark mass. At 95% confidence level, single production of first-generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 1730 GeV, and second-generation leptoquarks with a coupling and branching fraction of 1.0 is excluded for masses below 530 GeV. These are the best overall limits on the production of first-generation leptoquarks to date.
Submission history
From: The CMS Collaboration [view email][v1] Sat, 12 Sep 2015 14:44:04 UTC (454 KB)
[v2] Tue, 29 Sep 2015 19:43:42 UTC (400 KB)
[v3] Wed, 27 Apr 2016 20:54:35 UTC (463 KB)
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