Search for Scalar Top Admixture in the t anti-t Lepton+Jets Channel at D0

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A search has been performed for scalar top quark pair production in the lepton+jets channel in {approx}1 fb{sup -1} of data. Kinematic differences between the exotic stop-stopbar and the dominant ttbar process are used to separate the two possible contributions. For scalar top quark masses of 145-175 GeV and chargino masses of 105-135 GeV we obtain upper cross section limits at 95% confidence level for stop-stopbar production that are a factor of {approx}7-12 higher than expected for the Minimal Supersymmetric Standard Model (MSSM).

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4 pages

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Park, Su-Jung & U., /Rochester October 1, 2007.

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A search has been performed for scalar top quark pair production in the lepton+jets channel in {approx}1 fb{sup -1} of data. Kinematic differences between the exotic stop-stopbar and the dominant ttbar process are used to separate the two possible contributions. For scalar top quark masses of 145-175 GeV and chargino masses of 105-135 GeV we obtain upper cross section limits at 95% confidence level for stop-stopbar production that are a factor of {approx}7-12 higher than expected for the Minimal Supersymmetric Standard Model (MSSM).

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4 pages

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  • Presented at 15th International Conference on Supersymmetry and the Unification of Fundamental Interactions (SUSY07), Karlsruhe, Germany, 26 Jul - 1 Aug 2007

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  • Report No.: FERMILAB-CONF-07-523-E
  • Grant Number: AC02-07CH11359
  • Office of Scientific & Technical Information Report Number: 917428
  • Archival Resource Key: ark:/67531/metadc880884

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Office of Scientific & Technical Information Technical Reports

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  • October 1, 2007

Added to The UNT Digital Library

  • Sept. 22, 2016, 2:13 a.m.

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  • Dec. 7, 2016, 9:02 p.m.

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Park, Su-Jung & U., /Rochester. Search for Scalar Top Admixture in the t anti-t Lepton+Jets Channel at D0, article, October 1, 2007; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc880884/: accessed January 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.