Search for first and second generation leptoquarks at D0

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A search for first and second generation pair produced scalar leptoquarks has been done with the DO detector at Fermilab`s p{bar p} machine with {radical}s = 1.8 TeV. Leptoquarks are assumed to be strictly generational; for example, a first generation leptoquark couples only to the electron, its neutrino, and the u and d quarks. 95% C.L. mass limits of 133 GeV/c{sup 2} and 120 GeV/c{sup 2} for respective 100% and 50% decay branching ratios to electron plus quark for first generation scalar leptoquarks have been published. The preliminary results of a search for second generation scalar leptoquarks in the absence ... continued below

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13 p.

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Abachi, S.; Abbott, B. & Abolins, M. July 1, 1995.

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  • Abachi, S. Fermi National Accelerator Lab., Batavia, IL (United States)
  • Abbott, B. Purdue Univ., West Lafayette, IN (United States)
  • Abolins, M. Michigan State Univ., East Lansing, MI (United States)

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Description

A search for first and second generation pair produced scalar leptoquarks has been done with the DO detector at Fermilab`s p{bar p} machine with {radical}s = 1.8 TeV. Leptoquarks are assumed to be strictly generational; for example, a first generation leptoquark couples only to the electron, its neutrino, and the u and d quarks. 95% C.L. mass limits of 133 GeV/c{sup 2} and 120 GeV/c{sup 2} for respective 100% and 50% decay branching ratios to electron plus quark for first generation scalar leptoquarks have been published. The preliminary results of a search for second generation scalar leptoquarks in the absence of a signal are mass limits of 111 GeV/c{sup 2} and 89 GeV/c{sup 2} for 100% and 50% decay branching ratios to muon plus quark. A feature of these mass limits is that they are independent of the unknown coupling of the leptoquark to leptons and quarks. The detection for e{sup +}e{sup {minus}} and e-p machines depends on the strength of this coupling.

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13 p.

Notes

INIS; OSTI as DE96000439

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  • HEP 95: international Europhysics conference on high-energy physics, Brussels (Belgium), 27 Jul - 2 Aug 1995

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  • Other: DE96000439
  • Report No.: FNAL/C--95/184-E
  • Report No.: CONF-950705--20
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 113750
  • Archival Resource Key: ark:/67531/metadc626716

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Office of Scientific & Technical Information Technical Reports

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  • July 1, 1995

Added to The UNT Digital Library

  • June 16, 2015, 7:43 a.m.

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  • Dec. 11, 2017, 3:56 p.m.

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Abachi, S.; Abbott, B. & Abolins, M. Search for first and second generation leptoquarks at D0, article, July 1, 1995; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc626716/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.