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In this review I give an overview on the conceptual issues involved in the question how to interpret so-called `direct top quark mass measurements', which are based on the kinematic reconstruction of top quark decay products at the Large…

High Energy Physics - Phenomenology · Physics 2020-04-28 André H. Hoang

I discuss the theoretical interpretation of the top-quark mass, which is extracted in standard and alternative measurements at the LHC. In particular, I point out that the top mass extracted in analyses relying on the use of Monte Carlo…

High Energy Physics - Phenomenology · Physics 2016-03-01 Gennaro Corcella

The most precise top quark mass measurements use kinematic reconstruction methods, determining the top mass parameter of a Monte Carlo event generator, $m_t^{\rm MC}$. Due to hadronization and parton shower dynamics, relating $m_t^{\rm MC}$…

High Energy Physics - Phenomenology · Physics 2016-12-07 Mathias Butenschoen , Bahman Dehnadi , Andre H. Hoang , Vicent Mateu , Moritz Preisser , Iain W. Stewart

The most precise top quark mass measurements use kinematic reconstruction methods, determining the top mass parameter of a Monte Carlo event generator, $m_t^{\rm MC}$. Due to the complicated interplay of hadronization and parton shower…

High Energy Physics - Phenomenology · Physics 2018-03-07 Bahman Dehnadi , André H. Hoang , Vicent Mateu , Moritz Preisser , Iain W. Stewart

We present a method to establish experimentally the relation between the top-quark mass $m_t^{MC}$ as implemented in Monte-Carlo generators and the Lagrangian mass parameter $m_t$ in a theoretically well-defined renormalization scheme. We…

High Energy Physics - Phenomenology · Physics 2016-04-27 Jan Kieseler , Katerina Lipka , Sven-Olaf Moch

The top-quark mass is a parameter of paramount importance in particle physics, playing a crucial role in the electroweak precision tests and in the stability of the Standard Model vacuum. I will discuss the main strategies to extract the…

High Energy Physics - Phenomenology · Physics 2019-03-29 Gennaro Corcella

The top quark mass is one of the most intriguing parameters of the standard model (SM). Its value indicates a Yukawa coupling close to unity, and the resulting strong ties to Higgs physics make the top quark mass a crucial ingredient for…

High Energy Physics - Experiment · Physics 2025-04-10 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

Current measurements of the top quark mass which have achieved a precision of less than 1 GeV involve a theoretical problem that the definition of the measured mass is ambiguous in perturbation theory. As a possible solution to the problem,…

High Energy Physics - Phenomenology · Physics 2015-05-27 Sayaka Kawabata

The top quark is the heaviest elementary particle known and its mass ($m_{\rm top}$) is a fundamental parameter of the Standard Model (SM). The $m_{\rm top}$ value affects theory predictions of particle production cross-sections required…

High Energy Physics - Experiment · Physics 2015-10-16 Giorgio Cortiana

I briefly overview the methods employed at the LHC to extract the top-quark mass, taking particular care about the theory uncertainty and the dependence on the Monte Carlo hadronization parameters.

High Energy Physics - Phenomenology · Physics 2017-11-30 Gennaro Corcella

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

The top quark is the heaviest elementary particle in the Standard Model (SM). For this reason, a precise determination of its mass $m_t$ is part of the LHC physics program. The most accurate determinations of $m_t$ rely on the kinematic…

High Energy Physics - Phenomenology · Physics 2018-09-05 Silvia Ferrario Ravasio

We study the determination of the top-quark mass using leptonic observables in t-channel single top-quark production at the LHC. We demonstrate sensitivity of transverse momentum of the charged lepton on the input top-quark mass. We present…

High Energy Physics - Phenomenology · Physics 2021-04-28 Mei Sen Gao , Shu Run Yuan , Jun Gao

The experimental status of measurements of the top quark mass is reviewed. After an introduction to the definition of the top quark mass and the production and decay of top quarks, an in-depth comparison of the analysis techniques used in…

High Energy Physics - Experiment · Physics 2010-03-03 Frank Fiedler

We generalize and update our former top quark mass calibration framework for Monte Carlo (MC) event generators based on the $e^+e^-$ hadron-level 2-jettiness $\tau_2$ distribution in the resonance region for boosted $t\bar t$ production,…

High Energy Physics - Phenomenology · Physics 2023-12-12 Bahman Dehnadi , André H. Hoang , Oliver L. Jin , Vicent Mateu

We study the Monte Carlo uncertainties due to modeling of hadronization and showering in the extraction of the top-quark mass from observables that use exclusive hadronic final states in top decays, such as $t \rightarrow…

High Energy Physics - Phenomenology · Physics 2018-03-12 Gennaro Corcella , Roberto Franceschini , Doojin Kim

We investigate the possibility to measure the top quark mass using the collider variable $m_{T2}$ at the LHC experiment. Monte Carlo studies of $m_{T2}$ are performed with the events corresponding to the dilepton decays of $t\bar{t}$…

High Energy Physics - Phenomenology · Physics 2008-11-26 Won Sang Cho , Kiwoon Choi , Yeong Gyun Kim , Chan Beom Park

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

The top quark mass is currently measured to delta m_t^{exp,Tevatron} = 2.9 GeV and will be measured at the LHC to a precision of delta m_t^{exp,LHC} \approx 1-2 GeV. We show that even this impressive precision will not be sufficient for…

High Energy Physics - Phenomenology · Physics 2007-05-23 S. Heinemeyer , G. Weiglein
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