Measurements of top quark pair production cross section and search for resonances at Tevatron

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We present the measurement of the top pair production cross-section at Tevatron in p-pbar collisions at 1.96 TeV. We also compare selected kinematical distributions with the predictions of the Standard Model. In the dilepton mode, we select events with two charged leptons, high missing transverse energy and at least 2 jets. In the lepton+jets mode, we select events with one charged lepton, high missing transverse energy and at least 3 jets. We present several complementary measurements using kinematic discrimination and/or b-tagging. In the all-hadronic channel, we select events with {ge}6 jets and {le}8 jets. We present a measurement using an ... continued below

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10 pages

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Rossin, Roberto January 1, 2006.

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We present the measurement of the top pair production cross-section at Tevatron in p-pbar collisions at 1.96 TeV. We also compare selected kinematical distributions with the predictions of the Standard Model. In the dilepton mode, we select events with two charged leptons, high missing transverse energy and at least 2 jets. In the lepton+jets mode, we select events with one charged lepton, high missing transverse energy and at least 3 jets. We present several complementary measurements using kinematic discrimination and/or b-tagging. In the all-hadronic channel, we select events with {ge}6 jets and {le}8 jets. We present a measurement using an optimized kinematic selection and events with one or more displaced secondary vertices. We also report on the search for non-standard model resonance states in the invariant mass spectrum of top pairs in lepton+jets events. We present two complementary measurements, one adopts an event reconstruction technique that uses matrix element information to increase the sensitivity for discovery, the other performs a constrained kinematic fit and requires b-tagging.

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10 pages

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  • Journal Name: PoS TOP2006:008,2006; Conference: Presented at TOP 2006: International Workshop on Top Quark Physics, Coimbra, Portugal, 12-15 Jan 2006

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  • Report No.: FERMILAB-CONF-06-123-E
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 892322
  • Archival Resource Key: ark:/67531/metadc882382

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

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  • January 1, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • July 26, 2017, 12:56 p.m.

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Rossin, Roberto. Measurements of top quark pair production cross section and search for resonances at Tevatron, article, January 1, 2006; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc882382/: accessed October 18, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.