# Search for Pair Production of Second Generation Scalar Leptoquarks in $p\bar{p}$ Collisions at $\sqrt{s}$=1.96 TeV

Abstract : We report on a search for the pair production of second generation scalar leptoquarks (LQ_2) in ppbar 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 D0 detector. No evidence for a leptoquark signal in the LQ_2 LQ_2 -> muq muq channel has been observed, and upper bounds on the product of cross section times branching fraction were set. This yields lower mass limits of m(LQ_2) > 247 GeV for beta = Br(LQ_2->muq) = 1 and m(LQ_2) > 182 GeV for beta = 1/2. Combining these limits with previous D0 results, the lower limits on the mass of a second generation scalar leptoquark are m(LQ_2) > 251 GeV and m(LQ_2) > 204 GeV for beta = 1 and beta = 1/2, respectively.
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Journal articles
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http://hal.in2p3.fr/in2p3-00025622
Contributor : Jeanine Pellet <>
Submitted on : Tuesday, February 14, 2006 - 3:26:09 PM
Last modification on : Wednesday, September 16, 2020 - 4:23:37 PM

### Citation

V.M. Abazov, B. Abbott, M. Abolins, B.S. Acharya, M. Adams, et al.. Search for Pair Production of Second Generation Scalar Leptoquarks in $p\bar{p}$ Collisions at $\sqrt{s}$=1.96 TeV. Physics Letters B, Elsevier, 2006, 636, pp.183-190. ⟨10.1016/j.physletb.2006.03.056⟩. ⟨in2p3-00025622⟩

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