Search for pair production of first-generation scalar leptoquarks in pp lollisions at √s=7 TeV

Khachatryan, V. ; Sirunyan, A. M. ; Tumasyan, A. ; Kailas, S. (2011) Search for pair production of first-generation scalar leptoquarks in pp lollisions at √s=7 TeV Physical Review Letters, 106 (20). 201802_1-201802_15. ISSN 0031-9007

Full text not available from this repository.

Official URL: http://prl.aps.org/abstract/PRL/v106/i20/e201802

Related URL: http://dx.doi.org/10.1103/PhysRevLett.106.201802

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.

Item Type:Article
Source:Copyright of this article belongs to The American Physical Society.
ID Code:85458
Deposited On:03 Mar 2012 07:48
Last Modified:03 Mar 2012 07:48

Repository Staff Only: item control page