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A sizeable charge asymmetry in top quark pair production has been observed at the Tevatron. The experimental results seem to exceed systematically the Standard Model theory predictions by a significant amount and have triggered a large…

High Energy Physics - Phenomenology · Physics 2011-12-30 German Rodrigo

We review recent measurements of the properties of the top quark by the CDF and D0 experiments: the mass and decay width of the top quark, the ratio $R=\btwb/\btwq$, the total production cross section of \ttbar\ pairs, the helicity of the…

High Energy Physics - Experiment · Physics 2013-06-25 Oleg Brandt

Semileptonic decays of charged and neutral $B$ mesons play a critical role in the determination of the magnitudes of the CKM-matrix elements $V_{cb}$ and $V_{ub}$, and in the test of the lepton universality which is a basic assumption of…

High Energy Physics - Experiment · Physics 2018-05-01 Long-Ke Li , Chang-Zheng Yuan

The leptonic asymmetry in semileptonic ttbar decays is measured with the CDF detector using the full Tevatron Run II dataset, which corresponds to 9.4 fb^-1 of integrated luminosity. The measured asymmetry is extrapolated to the full…

High Energy Physics - Experiment · Physics 2015-06-16 Stefano Camarda

A measurement of the cross section for the inclusive production of isolated photons by the CDF experiment at the Fermilab Tevatron collider is presented. The measurement covers the pseudorapidity region |eta^gamma|<1.0 and the transverse…

High Energy Physics - Experiment · Physics 2010-05-12 The CDF Collaboration , T. Aaltonen

We report the first top quark mass measurement that uses a cross section constraint to improve the mass determination. This measurement is made with a dilepton $t\bar{t}$ event sample collected with the CDF II detector. From a data sample…

High Energy Physics - Experiment · Physics 2010-05-12 CDF Collaboration , T. Aaltonen

The recent Tevatron measurement of the forward-backward asymmetry of the top quark shows an intriguing discrepancy with Standard Model expectations, particularly at large $\ttbar$ invariant masses. Measurements of this quantity are subtle…

High Energy Physics - Phenomenology · Physics 2013-05-29 JoAnne L. Hewett , Jessie Shelton , Michael Spannowsky , Tim M. P. Tait , Michihisa Takeuchi

Updated Standard Model Higgs boson search results from the Tevatron experiments are presented. We focus on the updated CDF MET+bb result, where a significant shift in observed limits is explained. For the Tevatron combinations, upper limits…

High Energy Physics - Experiment · Physics 2022-03-02 Kyle J. Knoepfel

We present a new measurement of the mass of the top quark using lepton + jets ttbar events collected by the DO experiment in Run I of the Fermilab Tevatron Collider. The mass is extracted through a comparison of each event with a…

High Energy Physics - Experiment · Physics 2007-05-23 V. M. Abazov , The D0 Collaboration

We report a measurement of the ttbar production cross section using the CDF-II detector at the Fermilab Tevatron. The analysis is performed using 311 pb-1 of ppbar collisions at sqrt(s)=1.96 TeV. The data consist of events selected with six…

High Energy Physics - Experiment · Physics 2010-05-12 A. Abulencia

We report a new measurement of the ttbar production cross section in pbarp collisions at a center-of-mass energy of 1.96 TeV using events with one charged lepton (electron or muon), missing transverse energy, and jets. Using 425 pb^{-1} of…

High Energy Physics - Experiment · Physics 2008-11-26 D0 Collaboration , V. Abazov

We report a new measurement of the CKM parameter V_ub made with a sample of 9.7 million B B-bar events collected with the CLEO II detector. Using Heavy Quark theory, we combine the observed yield of leptons from semileptonic B decay in the…

High Energy Physics - Experiment · Physics 2010-04-08 A. Bornheim , CLEO Collaboration

We present a measurement of the ttbar production cross section using events with one charged lepton and jets from ppbar collisions at a center-of-mass energy of 1.96 TeV. A b-tagging algorithm based on the probability of displaced tracks…

High Energy Physics - Experiment · Physics 2010-05-12 CDF Collaboration , A. Abulencia

We carry out a comprehensive analysis of models for top A_{FB} at CDF in light of new top data arriving from the LHC. We begin with a careful Tevatron analysis, considering in general which sets of effective vertices give rise to a large…

High Energy Physics - Phenomenology · Physics 2015-03-19 Moira I. Gresham , Ian-Woo Kim , Kathryn M. Zurek

In this paper we report a measurement of the ttbar production cross section in ppbar collisions at sqrt(s)=1.96 TeV using data corresponding to an integrated luminosity of 2.2fb-1 collected with the CDF II detector at the Tevatron…

High Energy Physics - Experiment · Physics 2011-09-08 CDF Collaboration , T. Aaltonen

Recent experimental and theoretical results on kaon semileptonic decays have significantly improved the determination of the CKM matrix element V_us. After briefly summarizing the impact of the new experimental determinations, I will…

High Energy Physics - Phenomenology · Physics 2007-05-23 Vittorio Lubicz

Flavour mixing is described within the Standard Model by the Cabibbo-Kobayashi-Maskawa matrix elements. With the increasingly higher statistics collected by many experiments, the matrix elements are measured with improved precision,…

High Energy Physics - Experiment · Physics 2009-02-19 Francesca Di Lodovico

We present a new method for the determination of the Cabibbo-Kobayashi-Maskawa quark mixing matrix element $|V_{tb}|$ from electroweak loop corrections, in particular those affecting the process $Z\to b\bar{b}$. From a combined analysis of…

High Energy Physics - Phenomenology · Physics 2009-10-30 John Swain , Lucas Taylor

We present a measurement of the electric charge of top quarks using $t\bar{t}$ events produced in $p\bar{p}$ collisions at the Tevatron. The analysis is based on fully reconstructed $t\bar{t}$ pairs in lepton+jets final states. Using data…

High Energy Physics - Experiment · Physics 2014-09-29 D0 Collaboration

The mass of the top quark has been measured at Fermilab using the Tevatron ppbar collider to a precision of less than 1%. I discuss the individual measurements that go into this result and its impact on our understanding of the standard…

High Energy Physics - Experiment · Physics 2008-06-09 Ulrich Heintz
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