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Title: Top Quark Mass and Properties Measurements with the ATLAS Detector

Abstract

The top quark is the heaviest elementary particle and unique among the known quarks since it decays before forming hadronic bound states. This makes measurements of the top quark itself particularly interesting as one can access directly the properties of a bare quark. The latest measurements of these properties with the ATLAS detector are reported using data from 8 TeV and 13 TeV proton-proton collisions at the Large Hadron Collider at CERN. The latest measurements of the top quark mass using template meth- ods, as well as others aiming to measure the mass in a well-de ned scheme, are presented. In addition, measurements for the top quark decay width, top quark spin observables and W-boson helicity in events with top quark pairs ($$t\bar{t}$$) are presented and compared to the Standard Model predictions. The cross-section measurements of top quark pair production in association with a photon, Z- or W-boson are also reported and compared to the most accurate theoretical calculations. These measurements probe the top quark electroweak couplings. Limits on the rate of avour-changing neutral current processes in the production or decay of the top quark are also shown.

Authors:
 [1]
  1. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States). National Energy Research Scientific Computing Center (NERSC)
Sponsoring Org.:
USDOE Office of Science (SC)
Contributing Org.:
ATLAS Collaboration
OSTI Identifier:
1544282
Resource Type:
Accepted Manuscript
Journal Name:
International Journal of Modern Physics: Conference Series
Additional Journal Information:
Journal Volume: 46; Conference: 21. Particles and Nuclei International Conference (PANIC 2017), Bejing (China), 1-5 Sept 2017; Journal ID: ISSN 2010-1945
Publisher:
World Scientific
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; ATLAS; top quark mass; decay width; spin; polarisation; associated production; couplings

Citation Formats

Moreno Llácer, M. Top Quark Mass and Properties Measurements with the ATLAS Detector. United States: N. p., 2018. Web. doi:10.1142/S2010194518600534.
Moreno Llácer, M. Top Quark Mass and Properties Measurements with the ATLAS Detector. United States. doi:10.1142/S2010194518600534.
Moreno Llácer, M. Thu . "Top Quark Mass and Properties Measurements with the ATLAS Detector". United States. doi:10.1142/S2010194518600534. https://www.osti.gov/servlets/purl/1544282.
@article{osti_1544282,
title = {Top Quark Mass and Properties Measurements with the ATLAS Detector},
author = {Moreno Llácer, M.},
abstractNote = {The top quark is the heaviest elementary particle and unique among the known quarks since it decays before forming hadronic bound states. This makes measurements of the top quark itself particularly interesting as one can access directly the properties of a bare quark. The latest measurements of these properties with the ATLAS detector are reported using data from 8 TeV and 13 TeV proton-proton collisions at the Large Hadron Collider at CERN. The latest measurements of the top quark mass using template meth- ods, as well as others aiming to measure the mass in a well-de ned scheme, are presented. In addition, measurements for the top quark decay width, top quark spin observables and W-boson helicity in events with top quark pairs ($t\bar{t}$) are presented and compared to the Standard Model predictions. The cross-section measurements of top quark pair production in association with a photon, Z- or W-boson are also reported and compared to the most accurate theoretical calculations. These measurements probe the top quark electroweak couplings. Limits on the rate of avour-changing neutral current processes in the production or decay of the top quark are also shown.},
doi = {10.1142/S2010194518600534},
journal = {International Journal of Modern Physics: Conference Series},
number = ,
volume = 46,
place = {United States},
year = {2018},
month = {5}
}

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Works referenced in this record:

Measurement of the top quark mass in the t t ¯ dilepton channel from s = 8  TeV ATLAS data
journal, October 2016


The ATLAS Experiment at the CERN Large Hadron Collider
journal, August 2008


Top Mass Measurements from Jets and the Tevatron Top-Quark Mass
journal, December 2008


Search for single top-quark production via flavour-changing neutral currents at 8 TeV with the ATLAS detector
journal, January 2016