Permanent URL to this publication: http://dx.doi.org/10.5167/uzh-58560
CMS Collaboration, including the following authors; Khachatryan, V; Amsler, C; Chiochia , V (2011). Search for pair production of first-generation scalar leptoquarks in pp collisions at √s=7 TeV. Physical Review Letters, 106(20):201802.
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.
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 CMS Collaboration
|Other titles:||Search for pair production of first-generation scalar leptoquarks in pp collisions at sqrt(s) = 7 TeV|
|Item Type:||Journal Article, refereed, original work|
|Communities & Collections:||07 Faculty of Science > Physics Institute|
|Deposited On:||13 Feb 2012 22:12|
|Last Modified:||27 Nov 2012 08:13|
|Publisher:||American Physical Society|
|ISSN:||0031-9007 (P) 1079-7114 (E)|
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