PoS - Proceedings of Science
Volume 282 - 38th International Conference on High Energy Physics (ICHEP2016) - Poster Session
Measurement of the top-quark mass from the b jet energy spectrum with the CMS detector
D. Guerrero* on behalf of the CMS collaboration
*corresponding author
Full text: pdf
Pre-published on: February 06, 2017
Published on: April 19, 2017
Abstract
A first measurement of the top-quark mass is presented based on the peak position of the energy spectrum of b jets produced from top-quark decays. This novel technique follows a recent theoretical proposal aiming to minimize systematic uncertainties related to the modeling of top quark production. The analysis is performed selecting top-antitop events with electron-muon final states in proton-proton collision data at $\sqrt{s}$ = 8 TeV with the CMS detector, corresponding to an integrated luminosity of 19.7 fb$^{-1}$. The energy peak position is obtained by fitting the observed energy spectrum, and is translated to a top-quark mass estimation using relativistic kinematics, calibrated with Monte Carlo simulation.
DOI: https://doi.org/10.22323/1.282.0743
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