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Related papers: Scanning Strategies at the Top Threshold at ILC

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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

Future electron-positron colliders offer a unique opportunity for high-precision measurements of the top-quark mass, width, strong coupling constant, and top-quark Yukawa coupling via a scan of the $t\bar{t}$ threshold. We present the first…

High Energy Physics - Phenomenology · Physics 2026-03-19 Leyan Li , Yuming Lin , Xiaohu Sun , Yajun Mao , Zhan Li , Kaili Zhang , Shudong Wang , Gang Li , Hongbo Liao , Yaquan Fang

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

We report on the feasibility of measuring the top Yukawa coupling in the process: $e^+e^-\to t\bar{t}H$. This measurement is crucial to test the mass generation mechanism for matter particles. Since the cross section for this process…

High Energy Physics - Experiment · Physics 2010-08-18 Ryo Yonamine , Katsumasa Ikematsu , Satoru Uozumi , Keisuke Fujii

Running a future Linear Collider at the top pair threshold allows for precise measurements of the mass, the widths and the couplings of the top quark. I give a nontechnical review on recent theoretical developments and the theory status in…

High Energy Physics - Phenomenology · Physics 2009-11-11 Andre H. Hoang

A precise measurement of the top quark Yukawa coupling is of great importance, since it may shed light on the mechanism of EWSB. We study the prospects of such measurement during the first phase of the ILC at sqrt(s)=500 GeV, focusing in…

High Energy Physics - Phenomenology · Physics 2008-11-26 A. Juste

An overview of top physics and phenomenology at a high-energy linear collider is presented. A comprehensive study of top quark physics is possible at such a facility. The unique threshold production of top pairs would provide measurements…

High Energy Physics - Phenomenology · Physics 2007-05-23 Raymond Frey

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

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

A scan of the top production threshold at a future electron-positron collider provides the possibility for a precise measurement of the top quark mass in theoretically well-defined mass schemes. With statistical uncertainties of 20 MeV or…

High Energy Physics - Experiment · Physics 2016-08-23 Frank Simon

This report discusses several topics in both top quark physics and QCD at an International Linear Collider (ILC). Issues such as measurements at the $t\bar{t}$ threshold, including both theoretical and machine requirements, and the…

We report on a study of top pair production at the International Linear Collider (ILC) around center of mass energy (E$_{\rm CM}$) = 350 GeV using an ILD detector simulator based on the Detailed Baseline Design (DBD) configuration. Here we…

High Energy Physics - Experiment · Physics 2014-09-29 Tomohiro Horiguchi , Akimasa Ishikawa , Taikan Suehara , Keisuke Fujii , Yukinari Sumino , Yuichiro Kiyo , Hitoshi Yamamoto

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

An updated study of measuring the W mass from a polarized threshold scan at ILC is presented with an emphasis on evaluating scan strategies that control experimental systematics. Highly longitudinally polarized beams of electrons and…

High Energy Physics - Experiment · Physics 2020-01-01 Graham W. Wilson

We show how a measurement of the process pp-->t tbar H + X at the LHC and a measurement of the Higgs boson branching ratios BR(H-->b bar) and BR(H-->W+W-) at a future linear electron positron collider can be combined to extract a…

High Energy Physics - Phenomenology · Physics 2009-01-07 Klaus Desch , Markus Schumacher

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

Linear e+e- colliders provide a rich set of opportunities for top quark physics, crucial for the understanding of electroweak symmetry breaking and for the search for physics beyond the Standard Model. A ttbar threshold scan in e+e-…

High Energy Physics - Experiment · Physics 2014-12-01 Frank Simon

The Top Yukawa coupling profoundly influences several core mysteries linked to the electroweak scale and the Higgs boson. We study the feasibility of measuring the Top Yukawa coupling at high-energy muon colliders by examining the…

High Energy Physics - Phenomenology · Physics 2024-02-05 Zhen Liu , Kun-Feng Lyu , Ishmam Mahbub , Lian-Tao Wang

We present a study of the expected precision for measurement of the top Yukawa coupling, yt, in e+e- collisions at a center-of-mass energy of 1 TeV and assuming a beam polarization of P (e-, e+) = (-0.8,+0.2). Independent analyses of ttH…

High Energy Physics - Experiment · Physics 2015-06-25 Tony Price , Philipp Roloff , Jan Strube , Tomohiko Tanabe
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