Search for single production of scalar leptoquarks in p anti-p collisions decaying into muons and quarks with the D0 detector

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We report on a search for second generation leptoquarks (LQ{sub 2}) which decay into a muon plus quark in p{bar p} collisions at a center-of-mass energy of {radical}s = 1.96 TeV in the D0 detector using an integrated luminosity of about 300 pb{sup -1}. No evidence for a leptoquark signal is observed and an upper bound on the product of the cross section for single leptoquark production times branching fraction {beta} into a quark and a muon was determined for second generation scalar leptoquarks as a function of the leptoquark mass. This result has been combined with a previously published ... continued below

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8 pages

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Abazov, V.M.; Abbott, B.; Abolins, M.; Acharya, B.S.; Adams, M.; Adams, T. et al. December 1, 2006.

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We report on a search for second generation leptoquarks (LQ{sub 2}) which decay into a muon plus quark in p{bar p} collisions at a center-of-mass energy of {radical}s = 1.96 TeV in the D0 detector using an integrated luminosity of about 300 pb{sup -1}. No evidence for a leptoquark signal is observed and an upper bound on the product of the cross section for single leptoquark production times branching fraction {beta} into a quark and a muon was determined for second generation scalar leptoquarks as a function of the leptoquark mass. This result has been combined with a previously published D0 search for leptoquark pair production to obtain leptoquark mass limits as a function of the leptoquark-muon-quark coupling, {lambda}. Assuming {lambda} = 1, lower limits on the mass of a second generation scalar leptoquark coupling to a u quark and a muon are m{sub LQ{sub 2}} > 274 GeV and m{sub LQ{sub 2}} > 226 GeV for {beta} = 1 and {beta} = 1/2, respectively.

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8 pages

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  • Journal Name: Phys.Lett.B647:74-81,2007; Journal Volume: 647

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  • Report No.: FERMILAB-PUB-06-455-E
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 900839
  • Archival Resource Key: ark:/67531/metadc886903

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • December 1, 2006

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  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 7, 2016, 9:01 p.m.

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Abazov, V.M.; Abbott, B.; Abolins, M.; Acharya, B.S.; Adams, M.; Adams, T. et al. Search for single production of scalar leptoquarks in p anti-p collisions decaying into muons and quarks with the D0 detector, article, December 1, 2006; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc886903/: accessed December 16, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.