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Search for pair production of second generation scalar leptoquarks in p over(p, ̄) collisions at sqrt(s) = 1.96  TeV

  • V. M. Abazov
  • , B. Abbott
  • , M. Abolins
  • , B. S. Acharya
  • , M. Adams
  • , T. Adams
  • , M. Agelou
  • , J. L. Agram
  • , S. H. Ahn
  • , M. Ahsan
  • , G. D. Alexeev
  • , G. Alkhazov
  • , A. Alton
  • , G. Alverson
  • , G. A. Alves
  • , M. Anastasoaie
  • , T. Andeen
  • , S. Anderson
  • , B. Andrieu
  • , M. S. Anzelc
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*Corresponding author for this work
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Research output: Contribution to journalArticlepeer-review

24 Scopus citations

Abstract

We report on a search for the pair production of second generation scalar leptoquarks ( LQ2) in p over(p, ̄) collisions at the center-of-mass energy sqrt(s) = 1.96   TeV, using data corresponding to an integrated luminosity of 294 ± 19   pb-1 recorded with the DØ detector. No evidence for a leptoquark signal in the LQ2 over(LQ, -)2 → μ q μ q channel has been observed, and upper bounds on the product of cross section times branching fraction were set. This yields lower mass limits of mLQ2 > 247   GeV / c2 for β = B ( LQ2 → μ q ) = 1 and mLQ2 > 182   GeV / c2 for β = 1 / 2. Combining these limits with previous DØ results, the lower limits on the mass of a second generation scalar leptoquark are mLQ2 > 251   GeV / c2 and mLQ2 > 204   GeV / c2 for β = 1 and β = 1 / 2, respectively.

Original languageEnglish
Pages (from-to)183-190
Number of pages8
JournalPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume636
Issue number3-4
DOIs
StatePublished - 11 May 2006

Keywords

  • Second generation leptoquarks

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