Search for Pair Production of Second-Generation Scalar Leptoquarks in pp Collisions at sqrt(s) = 7 TeV

Volker Adler, Stephanie Beauceron, Freya Blekman, Stijn Blyweert, Jorgen D'Hondt, Olivier Devroede, Rebeca Gonzalez Suarez, Alexis Kalogeropoulos, Joris Maes, Michael Maes, Stefaan Tavernier, Walter Van Doninck, Petra Van Mulders, Gerrit Van Onsem, Ilaria Villella

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

A search for pair production of second-generation scalar leptoquarks in the final state with two muons and two jets is performed using proton-proton collision data at sqrt(s) = 7 TeV collected by the CMS detector at the LHC. The data sample used corresponds to an integrated luminosity of 34 inverse picobarns. The number of observed events is in good agreement with the predictions from the standard model processes. An upper limit is set on the second-generation leptoquark cross section times beta^2 as a function of the leptoquark mass, and leptoquarks with masses below 394 GeV are excluded at a 95% confidence level for beta = 1, where beta is the leptoquark branching fraction into a muon and a quark. These limits are the most stringent to date.
Original languageEnglish
Article number201803
JournalPhys. Rev. Lett.
Volume106
Publication statusPublished - 2011

Keywords

  • leptoquark : scalar
  • leptoquark : mass
  • leptoquark : pair production
  • mass dependence
  • CERN LHC coll
  • CMS
  • p p : interaction
  • leptoquark : decay
  • final stage : (2jet dimuon)
  • 7000 GeV-cms
  • background

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