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We present a study of top quark mass measurements at the $t\bar{t}$ threshold based on CEPC. A centre-of-mass energy scan near two times of the top mass is performed and the measurement precision of top quark mass, width and $\alpha_S$ are…

High Energy Physics - Experiment · Physics 2023-04-19 Zhan Li , Xiaohu Sun , Yaquan Fang , Gang Li , Shuiting Xin , Shudong Wang , Yiwei Wang , Yuan Zhang , Hao Zhang , Zhijun Liang

One of the important goals at the future e$^+$e$^-$ colliders is to measure the top-quark mass and width in a scan of the pair production threshold. Presented in this work is the most general approach to the top-quark mass determination…

High Energy Physics - Experiment · Physics 2021-07-28 Kacper Nowak , Aleksander Filip Zarnecki

Most supersymmetric models predict new particles within the reach of the next generation of colliders. For an understanding of the model structure and the mechanism(s) of electroweak symmetry breaking, it is important to know the masses of…

High Energy Physics - Phenomenology · Physics 2007-12-28 A. Sopczak , A. Freitas , C. Milstene , M. Schmitt

The threshold scan at future lepton colliders is the most precise known method to determine the top quark mass (well below 100 MeV), a fundamental parameter of the Standard Model that co-determines the stability properties of the…

High Energy Physics - Phenomenology · Physics 2018-11-12 Jürgen Reuter , Bijan Chokoufé Nejad , Andre Hoang , Wolfgang Kilian , Maximilian Stahlhofen , Thomas Teubner , Christian Weiss

We present a study of the expected precision of the top quark mass determination, measured at a linear e+ e- collider based on CLIC technology. GEANT4-based detector simulation and full event reconstruction including realistic physics and…

High Energy Physics - Experiment · Physics 2013-08-28 Katja Seidel , Frank Simon , Michal Tesar , Stephane Poss

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

Future energy-frontier electron-positron colliders will be capable of high-precision studies of top quark properties. The measurement of the top-pair production cross section around the threshold provides access to the mass of the top quark…

High Energy Physics - Experiment · Physics 2016-11-11 Frank Simon

Future e^+ e^- linear colliders will enable us to determine the top quark mass with high accuracy from the measurement of the 1S peak position of (remnant of) toponium. The estimated statistical error in this measurement is about 50 MeV…

High Energy Physics - Phenomenology · Physics 2007-05-23 Y. Kiyo

In this letter, we evaluate potential of linear $e^+e^-$ colliders to measure the top quark mass in radiative events and in a suitable short-distance scheme. We present a calculation of the differential cross section for production of a top…

High Energy Physics - Phenomenology · Physics 2020-03-11 Marça Boronat , Esteban Fullana , Juan Fuster , Pablo Gomis , André Hoang , Vicent Mateu , Marcel Vos , Angelika Widl

One of the important goals at the future $e^+e^-$ colliders is to measure the top-quark mass and width in a scan of the pair production threshold. However, the shape of the pair-production cross section at the threshold depends also on…

High Energy Physics - Experiment · Physics 2021-07-28 Kacper Nowak , Aleksander Filip Zarnecki

A scan of the top quark pair production threshold at a future electron-positron collider provides the possibility for high-precision measurements of the top quark mass, and, when using two dimensional fits of the measured cross sections,…

High Energy Physics - Experiment · Physics 2020-05-25 Frank Simon

A scan of the beam energy across the top quark pair ($\mathrm{t\overline{t}}$) production threshold is part of the program of future Higgs, top, and electroweak factory projects. In this paper, we provide projections for the achievable…

High Energy Physics - Phenomenology · Physics 2025-11-26 Matteo M. Defranchis , Jorge de Blas , Ankita Mehta , Michele Selvaggi , Marcel Vos

This report describes a measurement of the top quark mass in $\ppbar$ collisions at a center of mass energy of 1.8 TeV. The data sample was collected with the CDF detector during the 1992--95 collider run at the Fermilab Tevatron, and…

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

The underlying structure of matter can be deeply probed via precision measurements of the mass of the \emph{top quark}, the most massive observed fundamental particle. Top quarks can be produced and studied only in collisions at high energy…

High Energy Physics - Experiment · Physics 2007-05-23 S. Whiteson , D. Whiteson

The prospects for electroweak precision measurements at the Future Circular Collider with electron-positron beams (FCC-ee) are discussed. The Z mass and width, as well as the value of the electroweak mixing angle, can be measured with very…

High Energy Physics - Experiment · Physics 2014-12-10 Roberto Tenchini

We measure the mass of the top quark in lepton+jets final states using the full sample of $p\bar{p}$ collision data collected by the D0 experiment in Run~II of the Fermilab Tevatron Collider at $\sqrt s=1.96~$TeV, corresponding to $9.7~{\rm…

High Energy Physics - Experiment · Physics 2014-07-21 D0 Collaboration

We measure the mass of the top quark in lepton$+$jets final states using the full sample of $p\bar{p}$ collision data collected by the D0 experiment in Run II of the Fermilab Tevatron Collider at $\sqrt s=1.96 $TeV, corresponding to $9.7…

High Energy Physics - Experiment · Physics 2015-06-10 D0 Collaboration

The mass of the top quark is measured using a sample of $\mathrm{t\overline{t}}$ events collected by the CMS detector using proton-proton collisions at $\sqrt{s} =$ 13 TeV at the CERN LHC. Events are selected with one isolated muon or…

High Energy Physics - Experiment · Physics 2022-04-15 CMS Collaboration

The top quark mass plays an important role in a variety of discussions both within and beyond the Standard Model. However, a precise determination of a theoretically well-defined top quark mass is still missing. Towards a precise…

High Energy Physics - Phenomenology · Physics 2015-11-11 Sayaka Kawabata

The mass of the top quark is measured using a sample of $\rm{t}\bar{\rm t}$ candidate events with one lepton, muon or electron, and at least four jets in the final state, collected by the CMS detector in pp collisions at…

High Energy Physics - Experiment · Physics 2018-07-01 Nataliia Kovalchuk
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