Title
Search for pair production of first-generation scalar leptoquarks in pp collisions at <tex>$\sqrt{s}$</tex> = 7 TeV Search for pair production of first-generation scalar leptoquarks in pp collisions at <tex>$\sqrt{s}$</tex> = 7 TeV
Author
Faculty/Department
Faculty of Sciences. Physics
Publication type
article
Publication
New York, N.Y. ,
Subject
Physics
Source (journal)
Physical review letters. - New York, N.Y.
Volume/pages
106(2011) :20 , p. 201802,1-201802,15
ISSN
0031-9007
ISI
000290729400004
Carrier
E-only publicatie
Target language
English (eng)
Full text (Publishers DOI)
Affiliation
University of Antwerp
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 √s=7  TeV. The data sample used corresponds to an integrated luminosity of 33  pb-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 β2 as a function of the leptoquark mass, where β 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 β=1, which is the most stringent direct limit to date.
Full text (open access)
https://repository.uantwerpen.be/docman/irua/608463/be15335b.pdf
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