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A new method to measure the mass of the top quark at the LHC is presented. This method uses lepton energy distribution and ideally does not depend on the velocity distribution of the top quark. We perform a simulation analysis of the top…

High Energy Physics - Phenomenology · Physics 2014-10-27 Sayaka Kawabata

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

We present a new method to measure a theoretically well-defined mass of the top quark at the LHC. This method uses lepton energy distribution and has a boost-invariant nature. We perform a simulation analysis of the top mass reconstruction…

High Energy Physics - Phenomenology · Physics 2016-01-29 Sayaka Kawabata

We propose a new method to measure a theoretically well-defined top quark mass at the LHC. This method is based on the "weight function method," which we proposed in our preceding paper. It requires only lepton energy distribution and is…

High Energy Physics - Phenomenology · Physics 2018-05-09 Sayaka Kawabata , Yasuhiro Shimizu , Yukinari Sumino , Hiroshi Yokoya

We present a procedure for the determination of the mass of the top quark at the LHC based on leptonic observables in dilepton $t\bar{t}$ events. Our approach utilises the shapes of kinematic distributions through their few lowest Mellin…

High Energy Physics - Phenomenology · Physics 2015-06-22 Stefano Frixione , Alexander Mitov

Several methods for the determination of the mass of the top quark with the ATLAS detector at the LHC are presented. All dominant decay channels of the top quark can be explored. The measurements are in most cases dominated by systematic…

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

Taking advantage of large top production rates at the LHC, the leptonic final states with J/psi are explored for a precise determination of the top quark mass. The top is partially reconstructed by combining the isolated lepton from the W…

High Energy Physics - Phenomenology · Physics 2011-03-23 Avto Kharchilava

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

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

We present a feasibility study of top-quark mass measurement using the energy distribution of a lepton from a W boson in a top quark decay in pp collisions at the LHC. The proposed method requires only the lepton energy distribution at the…

High Energy Physics - Experiment · Physics 2018-01-17 Seo Hyun An , Sayaka Kawabata , Tae Jeong Kim

Measurements of the top quark mass are presented, obtained from CMS data collected in proton proton collisions at the LHC at centre-of-mass energies of 7 TeV and 8 TeV. The mass of the top quark is measured using several methods and…

High Energy Physics - Experiment · Physics 2016-10-07 Simon Spannagel

Future lepton colliders will have a rich top quark physics program which would add to our understanding of this interesting quark and promise an ultimate precision on the experimental knowledge of top-quark mass. We present possible…

High Energy Physics - Experiment · Physics 2019-08-14 Min Suk Kim

The mass of the top quark is a fundamental parameter of the standard model and has to be determined experimentally. In these proceedings, I review recent measurements of the top quark mass in $pp$ collisions at $\sqrt s=7,~8,$ and 13 TeV…

High Energy Physics - Experiment · Physics 2017-01-20 Oleg Brandt

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

An overview is presented of the measurements of the top quark mass performed by the ATLAS experiment at the LHC with an integrated luminosity varying between 35 pb$^{-1}$ and 4.7 fb$^{-1}$. Different techniques are used to measure the top…

High Energy Physics - Experiment · Physics 2013-02-20 Giuseppe Salamanna

The method of the top quark mass measurement from $M_{b l}$ distribution in $t \to b l \nu$ decays can be considerably improved if applying the technique of moments and proceeding to moments of high degree. At the LHC this allows one to…

High Energy Physics - Phenomenology · Physics 2016-12-07 M. L. Nekrasov

The latest measurements of the top quark mass obtained by the ATLAS and CMS experiments at the LHC for centre-of-mass energies of 7 and 8 TeV are presented. The mass of the top quark is measured using several methods and channels, including…

High Energy Physics - Experiment · Physics 2015-09-11 Sven Menke

Measurements of the top-quark mass employing alternative techniques are presented, performed by the D0 and CDF collaborations at the Tevatron as well as the ATLAS and CMS experiments at the LHC. The alternative methods presented include…

High Energy Physics - Experiment · Physics 2014-12-01 Stefanie Adomeit

We present a new method for the experimental determination of the top quark mass that is based upon the mean distance of travel of b hadrons in top quark events. The dominant systematic uncertainties of this method are not correlated with…

High Energy Physics - Experiment · Physics 2011-03-23 C. S. Hill , J. R. Incandela , J. M. Lamb
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