Search For Resonant Production Of Top Antitop Pairs Decaying Into Multi Jets At The Collider Detector At Fermilab
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Author | : Yuri Oksuzian |
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Release | : 2009 |
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Download Search for Resonant Production of Top Antitop Pairs Decaying Into Multi-jets at the Collider Detector at Fermilab Book in PDF, Epub and Kindle
ABSTRACT: We performed a search for"non-standard model tṫ resonances in the all jets final state channel." The main goal was to examine top-antitop invariant mass spectrum for the presence of narrow resonant states. The data analysis used 2.8fb−1 of CDF data; events were produced at the Tevatron collider in p[bar p] collisions with center-of-mass energy of 1.96 TeV. 2086 data events were analyzed and compared to Standard Model expectation. No evidence for new tṫ resonant production mechanisms was found. Upper limits were placed on the cross-section times branching ratio for resonance production at 805 GeV/c2. For signal modeling we considered leptophobic Z' boson in a topcolor-assisted technicolor model with the width of [capital gamma]= 1.2%MX0.
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Total Pages | : 103 |
Release | : 2009 |
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Download Search for the Resonant Production of Top Anititop Pairs Decaying Into Multi-Jets at the Collider Detector at Fermilab Book in PDF, Epub and Kindle
We performed a search for"non-standard model tt resonances in the all jets final state channel." The main goal was to examine top-antitop invariant mass spectrum for the presence of narrow resonant states. The data analysis used 2.8fb-1 of CDF data; events were produced at the Tevatron collider in pp collisions with center-of-mass energy of 1.96 TeV. 2086 data events were analyzed and compared to Standard Model expectation. No evidence for new tt resonant production mechanisms was found. Upper limits were placed on the cross-section times branching ratio for resonance production at 805 GeV/c2. For signal modeling we considered leptophobic Z' boson in a topcolor-assisted technicolor model with the width of [Gamma] = 1.2%MX0.
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Total Pages | : 8 |
Release | : 2011 |
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Download Search for Resonant Production of $t\bar{t}$ Decaying to Jets in $p\bar P$ Collisions at $\sqrt{s} Book in PDF, Epub and Kindle
This Letter reports a search for non-standard model topquark resonances, Z', decaying to t{bar t} 2!WbW−{bar b}, where both W decay to quarks. We examine the top-antitop quark invariant mass spectrum for the presence of narrow resonant states. The search uses a data sample of p{bar p} collisions at a center of mass energy of 1.96 TeV collected by the CDF II detector at the Fermilab Tevatron, with an integrated luminosity of 2.8 fb−1. No evidence for top-antitop quark resonant production is found. We place upper limits on the production cross section times branching ratio for a specific topcolor assisted technicolor model with width of [Lambda]{sub Z'} = 0.012 M{sub Z'}. Within this model, we exclude Z' boson with masses below 805 GeV/c2 at the 95% confidence level.
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Release | : 1994 |
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Download Multi-jet Analysis for the Top Search at the Fermilab Collider Book in PDF, Epub and Kindle
Author | : Janna Katharina Behr |
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Release | : 2015 |
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Download A Search for Massive Resonances in Final States with Boosted Top-antitop Pairs Decaying Into a Lepton and Jets with the ATLAS Detector at the Large Hadron Collider Book in PDF, Epub and Kindle
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Total Pages | : 8 |
Release | : 2011 |
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Download A Search for Resonant Production of $t\bar{t}$ Pairs in $4.8\ \rm{fb}^{-1}$ of Integrated Luminosity of $p\bar{p}$ Collisions at $\sqrt{s} Book in PDF, Epub and Kindle
We search for resonant production of t{bar t} pairs in 4.8 fb−1 integrated luminosity of p{bar p} collision data at √s = 1.96 TeV in the lepton+jets decay channel, where one top quark decays leptonically and the other hadronically. A matrix element reconstruction technique is used; for each event a probability density function (pdf) of the t{bar t} candidate invariant mass is sampled. These pdfs are used to construct a likelihood function, whereby the cross section for resonant t{bar t} production is estimated, given a hypothetical resonance mass and width. The data indicate no evidence of resonant production of t{bar t} pairs. A benchmark model of leptophobic Z' → t{bar t} is excluded with m{sub Z'}
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Total Pages | : 4 |
Release | : 1996 |
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Download A Study of Multi-jet Production Ratios in P{anti P} Collisions at Book in PDF, Epub and Kindle
The authors study inclusive jet multiplicity ratios in multi-jet events from p{anti p} collisions at (square root)s = 1.8 TeV recorded using the D0 detector at the Fermilab Tevatron collider. Preliminary average multi-jet production ratios are presented as a function of the scalar jet transverse energy and compared to NLO calculations.
Author | : Louis Joseph Keeble |
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Total Pages | : 406 |
Release | : 1992 |
Genre | : Particles (Nuclear physics) |
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Download A Study of Four-jet Events and Search for Double Parton Interactions with the Collider Detector at Fermilab Book in PDF, Epub and Kindle
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Release | : 2002 |
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Download Jet Physics at the Tevatron Book in PDF, Epub and Kindle
Recent analyses by the CDF and D0 Collaborations of jet data produced in p{bar p} collisions at the Fermilab Tevatron Collider are presented. These include new studies of the inclusive jet production cross section, a measurement of the strong coupling constant, the first measurement of subjet multiplicity of quark and gluon jets, examination of ratios of multijet cross sections and their implications for choice of renormalization scale, and a study of charged jet evolution and energy flow in the underlying event. The results are compared to theoretical predictions.
Author | : Nichelle L. Bruner |
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Total Pages | : 280 |
Release | : 1999 |
Genre | : Particles (Nuclear physics) |
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Download A Search for Production of Scalar Top at the Fermilab Tevatron Collider Book in PDF, Epub and Kindle