Search for a new resonance decaying into top-antitop at Tevatron

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In this report a new search for a narrow-width heavy resonance decaying into top quark pairs (X {yields} t{bar t}) in p{bar p} collisions at {radical}s = 1.96 TeV has been performed using data collected by the D0 detector at the Fermilab Tevatron collider. The analysis considers t{bar t} candidate events in the lepton+jets channel using a lifetime tag to identify b-jets and the t{bar t} invariant mass distribution to search for evidence of resonant production. The analyzed dataset corresponds to an integrated luminosity of approximately 370 pb{sup -1}. Since no evidence for a t{bar t} resonance X is found, ... continued below

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4 pages

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Schwanenberger, Christian & U., /Bonn February 1, 2006.

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In this report a new search for a narrow-width heavy resonance decaying into top quark pairs (X {yields} t{bar t}) in p{bar p} collisions at {radical}s = 1.96 TeV has been performed using data collected by the D0 detector at the Fermilab Tevatron collider. The analysis considers t{bar t} candidate events in the lepton+jets channel using a lifetime tag to identify b-jets and the t{bar t} invariant mass distribution to search for evidence of resonant production. The analyzed dataset corresponds to an integrated luminosity of approximately 370 pb{sup -1}. Since no evidence for a t{bar t} resonance X is found, upper limits on {sigma}{sub x} x B(X {yields} t{bar t}) for different hypothesized resonance masses using a Bayesian approach are set. Within a topcolor-assisted technicolor model, the existence of a leptophobic Z' boson with M{sub Z'} < 680 GeV and width {Lambda}{sub Z'} = 0.012 M{sub Z'} can be excluded at 95% C.L.

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4 pages

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  • Journal Name: Pos HEP2005:349,2006; Conference: Presented at EPS International Europhysics Conference on High Energy Physics (HEP-EPS 2005), Lisbon, Portugal, 21-27 Jul 2005

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  • Report No.: FERMILAB-CONF-06-045-E
  • Grant Number: AC02-76CH03000
  • Office of Scientific & Technical Information Report Number: 892347
  • Archival Resource Key: ark:/67531/metadc876570

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  • February 1, 2006

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  • Sept. 21, 2016, 2:29 a.m.

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  • Dec. 7, 2016, 9 p.m.

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Schwanenberger, Christian & U., /Bonn. Search for a new resonance decaying into top-antitop at Tevatron, article, February 1, 2006; Batavia, Illinois. (digital.library.unt.edu/ark:/67531/metadc876570/: accessed September 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.