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A determination of the top-quark mass is presented using 20.2 $\text{fb}^{-1}$ of 8 TeV proton-proton collision data produced by the Large Hadron Collider and collected by the ATLAS experiment. The normalised differential cross section of…

High Energy Physics - Experiment · Physics 2019-12-17 ATLAS Collaboration

A measurement of the top-quark pair-production cross section in ppbar collisions at sqrt{s}=1.96 TeV using data corresponding to an integrated luminosity of 1.12/fb collected with the Collider Detector at Fermilab is presented. Decays of…

High Energy Physics - Experiment · Physics 2012-08-27 The CDF Collaboration

Latest results on inclusive top-quark pair production cross-sections are presented using collision data collected by ATLAS and CMS experiments at the LHC. Inclusive and differential measurements of top-quark pair production cross-sections…

High Energy Physics - Experiment · Physics 2022-01-10 Luca Martinelli

Measuring the total cross sections of top-quark pair production and single top processes at high precision tests the predictions of the Standard Model and can bring better understanding of properties such as the top-quark mass, electroweak…

High Energy Physics - Experiment · Physics 2021-03-30 Olga Bessidskaia Bylund

We present an up-to-date overview of the problem of top quark mass determination. We assess the need for precision in the top mass extraction in the LHC era together with the main theoretical and experimental issues arising in precision top…

High Energy Physics - Phenomenology · Physics 2015-06-17 Aurelio Juste , Sonny Mantry , Alexander Mitov , Alexander Penin , Peter Skands , Erich Varnes , Marcel Vos , Stephen Wimpenny

Precision determinations of the top-quark mass require theory predictions with a well-defined mass parameter in a given renormalization scheme. The top-quark's running mass in the MSbar scheme can be extracted with good precision from the…

High Energy Physics - Phenomenology · Physics 2014-08-27 S. Moch

Circular electron positron colliders, such as the CEPC and FCC-ee, have been proposed to measure Higgs boson properties precisely, test the Standard Model, search for physics beyond the Standard Model, and so on. One of the important goals…

High Energy Physics - Experiment · Physics 2020-01-13 P. X. Shen , P. Azzurri , C. X. Yu , M. Boonekamp , C. M. Kuo , P. Z. Lai , B. Li , G. Li , H. N. Li , Z. J. Liang , B. Liu , J. M. Qian , L. S. Shi

Determination of the top-quark Yukawa couplings in the process e+ e- -> t \bar{t} Z has been studied for the high luminosity option (\int L=500\fbinver) of a linear e+e- collider. Polarization of the electron beam has been considered. The…

High Energy Physics - Phenomenology · Physics 2016-08-25 Bohdan Grzadkowski , Jacek Pliszka

In this paper, we reanalyze the top-quark pair production at the next-to-next-to-leading order (NNLO) in QCD at future $e^+e^-$ colliders by using the Principle of Maximum Conformality (PMC) method. The PMC renormalization scales in…

High Energy Physics - Phenomenology · Physics 2024-02-06 Jin Ma , Sheng-Quan Wang , Ting Sun , Jian-Ming Shen , Xing-Gang Wu

The determination of the Yukawa coupling of the top quark to the Higgs boson is one of the most important measurements that a future e^+e^- linear collider could provide. For a Higgs boson of mass greater than 350 GeV, this coupling can be…

High Energy Physics - Phenomenology · Physics 2009-10-31 Juan Alcaraz , Ester Ruiz Morales

The Principle of Maximum Conformality (PMC) provides a systematic way to eliminate the renormalization scheme and renormalization scale uncertainties for high-energy processes. We have observed that by applying PMC scale-setting, one…

High Energy Physics - Phenomenology · Physics 2018-03-22 Sheng-Quan Wang , Xing-Gang Wu , Zong-Guo Si , Stanley J. Brodsky

The dependence of the top-quark mass measurement in top-quark production on the parton distribution functions is explored through the differential distribution of the invariant mass of the top-antitop system in top-quark pair production at…

High Energy Physics - Phenomenology · Physics 2022-03-16 Jason Gombas , Jarrett Fein , Sara Sawford , Reinhard Schwienhorst

Top quark production in the process $e^+e^- \rightarrow t\bar{t}$ at a future linear electron positron collider with polarized beams is a powerful tool to determine the scale of new physics. Studies at the $\ttbar$ threshold will allow for…

High Energy Physics - Experiment · Physics 2014-01-07 D. Asner , A. Hoang , Y. Kiyo , R. Pöschl , Y. Sumino , M. Vos

The physics potential for boosted topologies in top-quark pair production is studied at centre-of-mass energies of 1.4 TeV and 3 TeV at the proposed high-luminosity linear electron-positron Compact Linear Collider (CLIC). The analyses…

High Energy Physics - Experiment · Physics 2020-10-06 R. Ström , P. Roloff

We perform a comparative study of the reach of future $e^+e^-$ collider options for the scale of non-resonant new physics effects in the top quark sector, phrased in the language of higher-dimensional operators. Our focus is on the…

High Energy Physics - Phenomenology · Physics 2017-10-26 Christoph Englert , Michael Russell

The Large Hadron Collider (LHC) produces a vast sample of top-quark pairs and single-top quarks. Measurements of the inclusive top-quark production rates at the LHC have reached a precision of several percent and test advanced…

High Energy Physics - Experiment · Physics 2023-07-18 Miguel Angel Principe Martin

A combination of measurements of the inclusive top-quark pair production cross-section performed by ATLAS and CMS in proton-proton collisions at centre-of-mass energies of 7 and 8 TeV at the LHC is presented. The cross-sections are obtained…

High Energy Physics - Experiment · Physics 2023-09-06 ATLAS , CMS Collaborations

25 years after the top quark's discovery, the Large Hadron Collider at CERN produces proton-proton collision data on unprecedented scales at unprecedented energies - and has heralded an era of top-quark precision measurements. The…

High Energy Physics - Experiment · Physics 2020-08-24 Knut Zoch

We explore a possibility of optimization of the method of determination of the top quark mass from $M_{b\ell}$ distribution in semi-leptonic decays $t \to b \ell\nu$ at LHC and a future linear collider (LC). We discover that the systematic…

High Energy Physics - Phenomenology · Physics 2009-01-07 M. L. Nekrasov

In this paper, we present an improved analysis of the top-quark pair production via the process $e^{+}e^{-}\to \gamma^{*}\to t\bar{t}$ near the threshold region up to next-to-next-to-next-to-leading order (N$^3$LO) QCD corrections. Near the…

High Energy Physics - Phenomenology · Physics 2024-04-25 Jiang Yan , Xing-Gang Wu , Zhi-Fei Wu , Jing-Hao Shan , Hua Zhou