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We compute QCD corrections to the production of a ttbar pair in association with a hard photon at the Tevatron and the LHC. This process allows a direct measurement of the top quark electromagnetic couplings that, at the moment, are only…

High Energy Physics - Phenomenology · Physics 2015-03-18 Kirill Melnikov , Andreas Scharf , Markus Schulze

We present a measurement of the top quark mass in the lepton+jets and dilepton channels of $t\bar{t}$ decays using the template method. The data sample corresponds to an integrated luminosity of 5.6 fb$^{-1}$ of $p\bar{p}$ collisions at…

High Energy Physics - Experiment · Physics 2011-06-20 CDF Collaboration , T. Aaltonen

The CDF Collaboration has adapted several heavy flavor tagging techniques and employed them in analyses of time-dependent flavor asymmetries using data from the Tevatron Run I. The tagging algorithms were calibrated using low-P_t inclusive…

High Energy Physics - Experiment · Physics 2009-09-25 S. Tkaczyk , The CDF Collaboration

The CDF Collaboration has analyzed 955/pb of CDF II data to search for electroweak single top quark production at the Tevatron. We employ three different analysis techniques to search for a single top signal: multivariate likelihood…

High Energy Physics - Experiment · Physics 2007-06-05 Bernd Stelzer

Various measurements of the top quark mass in the lepton+jets decay channel of top quark pair production are presented. The measurements are performed on data samples of up to 2.7 fb-1 of integrated luminosity acquired by the CDF and D0…

High Energy Physics - Experiment · Physics 2008-12-09 Christian Schwanenberger

During the last few years, new experimental and theoretical results have allowed ever more stringent tests of the Standard Model to be performed using kaon decays. This overview of recent progress includes an updated evaluation of the CKM…

High Energy Physics - Experiment · Physics 2015-06-11 Matthew Moulson

Current methods to extract the quark-mixing matrix element $|V_{tb}|$ from single-top production measurements assume that $|V_{tb}|\gg |V_{td}|, |V_{ts}|$: top quarks decay into $b$ quarks with 100% branching fraction, s-channel single-top…

High Energy Physics - Phenomenology · Physics 2012-06-28 H. Lacker , A. Menzel , F. Spettel , D. Hirschbühl , J. Lück , F. Maltoni , W. Wagner , M. Zaro

Monte Carlo (MC) simulations are indispensable tools for top quark physics, both at the current Tevatron collider and the upcoming Large Hadron Collider. In this paper we review how the Tevatron experiments CDF and D0 utilize MC simulations…

High Energy Physics - Experiment · Physics 2010-11-11 U. Husemann

We summarize the top-quark mass measurements from the CDF and DO experiments at Fermilab. We combine published Run I (1992-1996) measurements with the most precise published and preliminary Run II (2001-present) measurements using up to…

High Energy Physics - Experiment · Physics 2010-07-20 Tevatron Electroweak Working Group , CDF , D0 Collaborations

A technique for separating top quark production from Standard Model background events is introduced. It is applicable to the channel in which one top quark decays semi-leptonically and its anti-quark decays hadronically into three jets, or…

High Energy Physics - Phenomenology · Physics 2010-11-01 Gary R. Goldstein , K. Sliwa , R. H. Dalitz

The top quark was discovered in 1995. The top quark mass is now well measured at the Tevatron, with uncertainty getting below 1% of the top mass. The world average from last year was 170.9 $\pm$ 1.8 GeV/$c^2$. The new CDF measurement is 172…

High Energy Physics - Experiment · Physics 2008-05-16 Yen-Chu Chen

We present a measurement of the mass of the top quark from ppbar collisions at 1.96 TeV observed with the Collider Detector at Fermilab (CDF) at the Fermilab Tevatron Run II. The events have the decay signature of ppbar to ttbar in the…

High Energy Physics - Experiment · Physics 2007-05-23 Brian Mohr

This letter presents results on the precision measurement of the top quark mass and a combination of the best CDF top mass measurements. A combination by the TevEWWG (Tevatron electroweak working group) of the best top mass results from CDF…

High Energy Physics - Experiment · Physics 2008-10-07 P. Mehtala

I argue that the Fermilab Tevatron will contribute to our knowledge of the pieces of the standard model that we know the least about. I discuss five of the most important areas in which the Tevatron can confront the standard model:…

High Energy Physics - Phenomenology · Physics 2007-05-23 Scott Willenbrock

Differential cross sections in the top quark sector measured at the Fermilab Tevatron collider are presented. CDF used 2.7 fb$^{-1}$ of data and measured the differential cross section as a function of the invariant mass of the $t\bar{t}$…

High Energy Physics - Experiment · Physics 2022-03-02 Andreas W. Jung

The top quark is the heaviest of the six quarks of the Standard Model. Precise knowledge of its mass is important for imposing constraints on a number of physics processes, including interactions of the as yet unobserved Higgs boson. The…

High Energy Physics - Experiment · Physics 2015-05-30 Angela Barbaro Galtieri , Fabrizio Margaroli , Igor Volobouev

The CDF and D0 experiments have measured single and double top quark production in ppbar collisions at the Tevatron at a centre-of-mass energy of 1.96TeV. The applied methods are used to constrain properties of the top quark and to search…

High Energy Physics - Experiment · Physics 2022-03-02 Daniel Wicke

We report a measurement of the ttbar production cross section using the CDF II detector at the Fermilab Tevatron. The data consist of events with an energetic electron or muon, missing transverse energy, and three or more hadronic jets, at…

High Energy Physics - Experiment · Physics 2012-08-27 CDF collaboration

During the last few years, new experimental and theoretical results have allowed ever-more-stringent tests of the Standard Model to be performed using kaon decays. This overview of recent progress includes updated results for the evaluation…

High Energy Physics - Experiment · Physics 2014-11-20 Matthew Moulson

The mass of the top quark is a fundamental parameter of the Standard Model and has to be determined experimentally. In these proceedings, I review recent direct measurements of the top quark mass in $p\bar p$ collisions at $\sqrt s=1.96$…

High Energy Physics - Experiment · Physics 2017-10-13 Oleg Brandt
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