Search for second generation leptoquark pairs in $\bar{p}p$ collisions at $\sqrt{s} = 1.8$ TeV

Abbott, B.

doi:10.1103/PhysRevLett.84.2088

Search for second generation leptoquark pairs in $$\bar{p}p$$ collisions at $$\sqrt{s} = 1.8$$ TeV

Journal Article · Fri Oct 01 00:00:00 EDT 1999 · Phys.Rev.Lett.

DOI:https://doi.org/10.1103/PhysRevLett.84.2088· OSTI ID:1893440

Abbott, B.

We have searched for second generation leptoquark (LQ) pairs in the \mu\mu+jets channel using 94+-5 pb^{-1} of pbar-p collider data collected by the D0 experiment at the Fermilab Tevatron during 1993-1996. No evidence for a signal is observed. These results are combined with those from the \mu\nu+jets and \nu\nu+jets channels to obtain 95% confidence level (C.L.) upper limits on the LQ pair production cross section as a function of mass and $beta, the branching fraction of a LQ decay into a charged lepton and a quark. Lower limits of 200(180) GeV/c^2 for \beta=1(1/2) are set at the 95% C.L. on the mass of scalar LQ. Mass limits are also set on vector leptoquarks as a function of \beta.

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Research Organization:: Fermi National Accelerator Laboratory (FNAL), Batavia, IL (United States)

Sponsoring Organization:: USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)

Contributing Organization:: D0

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 1893440

Report Number(s):: FERMILAB-PUB-99-314-E; arXiv:hep-ex/9910040; oai:inspirehep.net:508772

Journal Information:: Phys.Rev.Lett., Journal Name: Phys.Rev.Lett. Vol. 84

Country of Publication:: United States

Language:: English

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