Top quark mass measurements at and above threshold at CLIC
Abstract
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 beam-induced background levels are used. Two different techniques to measure the top mass are studied: The direct reconstruction of the invariant mass of the top quark decay products and the measurement of the mass together with the strong coupling constant in a threshold scan, in both cases including first studies of expected systematic uncertainties. For the direct reconstruction, experimental uncertainties around 100 MeV are achieved, which are at present not matched by a theoretical understanding on a similar level. With a threshold scan, total uncertainties of around 100 MeV are achieved, including theoretical uncertainties in a well-defined top mass scheme. For the threshold scan, the precision at ILC is also studied to provide a comparison of the two linear collider technologies.
Keywords
Cite
@article{arxiv.1303.3758,
title = {Top quark mass measurements at and above threshold at CLIC},
author = {Katja Seidel and Frank Simon and Michal Tesar and Stephane Poss},
journal= {arXiv preprint arXiv:1303.3758},
year = {2013}
}
Comments
14 pages, 8 figures, published in EPJ C