Top quark physics and searches for new phenomena at the Tevatron

Conference · Thu Jan 01 04:00:00 EST 1998 · Nucl.Phys.B Proc.Suppl.

DOI:https://doi.org/10.1016/S0920-5632(98)00319-3· OSTI ID:589412

Hall, Raymond E. ^[1]

UC, Irvine; Fermilab

The CDF and DØ collaborations each have collected over 110pb −1 of data. The following article will describe near final results from two currently topical analyses: results from top quark physics and searches for first generation leptoquarks (LQ), using the entire statistics of these large data sets. After careful selection, both collaborations have collected top quark data samples consisting of several dozen events each. From these events both experiments have measured the top quark mass and pair production cross section in a variety of decay channels, including the so-called dilepton, lepton plus jets, and all jets channels. The combined top quark mass from both experiments in the lepton plus jets channels is m t = 175.6 ± 5.5GeV/ c 2 . CDF and DØ have also performed optimized searches for the pair production of first generation leptoquarks. No candidate events were found. Combining the results from the ee +jets, eν +jets, and νν +jets channels both experiments set 95% confidence level (CL) upper limits on the LQ pair production cross section as a function of mass and of β, the branching fraction to a charged lepton.

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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:: CDF; D0

DOE Contract Number:: AC02-07CH11359

OSTI ID:: 589412

Report Number(s):: FERMILAB-CONF-98-010-E; oai:inspirehep.net:466608

Conference Information:: Journal Name: Nucl.Phys.B Proc.Suppl. Journal Volume: 71

Country of Publication:: United States

Language:: English

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Top quark physics and searches for new phenomena at the Tevatron

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