Identification of high transverse momentum top quarks in pp collisions at √s= 8 TeV with the ATLAS detector

G Aad; B. Abbott; J Abdallah; R Aben; Torsten Åkesson; Simona Bocchetta; LENE BRYNGEMARK; Caterina Doglioni; Anders Floderus; Anthony Hawkins; Vincent Hedberg; Jenny Ivarsson; Göran Jarlskog; Else Lytken; Ulf Mjörnmark; Oxana Smirnova; Oleksandr Viazlo; ATLAS Collaboration

doi:10.1007/JHEP06(2016)093

Identification of high transverse momentum top quarks in pp collisions at √s= 8 TeV with the ATLAS detector

G Aad, B. Abbott, J Abdallah, R Aben, Torsten Åkesson, Simona Bocchetta, LENE BRYNGEMARK, Caterina Doglioni, Anders Floderus, Anthony Hawkins, Vincent Hedberg, Jenny Ivarsson, Göran Jarlskog, Else Lytken, Ulf Mjörnmark, Oxana Smirnova, Oleksandr Viazlo, ATLAS Collaboration

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Abstract

This paper presents studies of the performance of several jet-substructure techniques, which are used to identify hadronically decaying top quarks with high transverse momentum contained in large-radius jets. The efficiency of identifying top quarks is measured using a sample of top-quark pairs and the rate of wrongly identifying jets from other quarks or gluons as top quarks is measured using multijet events collected with the ATLAS experiment in 20.3 fb−1of 8 TeV proton-proton collisions at the Large Hadron Collider. Predictions from Monte Carlo simulations are found to provide an accurate description of the performance. The techniques are compared in terms of signal efficiency and background rejection using simulations, covering a larger range in jet transverse momenta than accessible in the dataset. Additionally, a novel technique is developed that is optimized to reconstruct top quarks in events with many jets.[Figure not available: see fulltext.] © 2016, The Author(s).

Original language	English
Article number	93
Journal	Journal of High Energy Physics
Volume	2016
Issue number	6
DOIs	https://doi.org/10.1007/JHEP06(2016)093
Publication status	Published - 2016

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Cited By :1

Export Date: 27 June 2017

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Subatomic Physics

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Hadron-Hadron scattering (experiments)

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10.1007/JHEP06(2016)093

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Aad, G., Abbott, B., Abdallah, J., Aben, R., Åkesson, T., Bocchetta, S., BRYNGEMARK, LENE., Doglioni, C., Floderus, A., Hawkins, A., Hedberg, V., Ivarsson, J., Jarlskog, G., Lytken, E., Mjörnmark, U., Smirnova, O., Viazlo, O., & ATLAS Collaboration (2016). Identification of high transverse momentum top quarks in pp collisions at √s= 8 TeV with the ATLAS detector. Journal of High Energy Physics, 2016(6), Article 93. https://doi.org/10.1007/JHEP06(2016)093

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title = "Identification of high transverse momentum top quarks in pp collisions at √s= 8 TeV with the ATLAS detector",

abstract = "This paper presents studies of the performance of several jet-substructure techniques, which are used to identify hadronically decaying top quarks with high transverse momentum contained in large-radius jets. The efficiency of identifying top quarks is measured using a sample of top-quark pairs and the rate of wrongly identifying jets from other quarks or gluons as top quarks is measured using multijet events collected with the ATLAS experiment in 20.3 fb−1of 8 TeV proton-proton collisions at the Large Hadron Collider. Predictions from Monte Carlo simulations are found to provide an accurate description of the performance. The techniques are compared in terms of signal efficiency and background rejection using simulations, covering a larger range in jet transverse momenta than accessible in the dataset. Additionally, a novel technique is developed that is optimized to reconstruct top quarks in events with many jets.[Figure not available: see fulltext.] {\textcopyright} 2016, The Author(s).",

keywords = "Hadron-Hadron scattering (experiments)",

author = "G Aad and B. Abbott and J Abdallah and O Abdinov and R Aben and Torsten {\AA}kesson and Simona Bocchetta and LENE BRYNGEMARK and Caterina Doglioni and Anders Floderus and Anthony Hawkins and Vincent Hedberg and Jenny Ivarsson and G{\"o}ran Jarlskog and Else Lytken and Ulf Mj{\"o}rnmark and Oxana Smirnova and Oleksandr Viazlo and {ATLAS Collaboration}",

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Aad, G, Abbott, B, Abdallah, J, Aben, R, Åkesson, T, Bocchetta, S, BRYNGEMARK, LENE , Doglioni, C, Floderus, A, Hawkins, A, Hedberg, V, Ivarsson, J, Jarlskog, G , Lytken, E, Mjörnmark, U, Smirnova, O, Viazlo, O & ATLAS Collaboration 2016, 'Identification of high transverse momentum top quarks in pp collisions at √s= 8 TeV with the ATLAS detector', Journal of High Energy Physics, vol. 2016, no. 6, 93. https://doi.org/10.1007/JHEP06(2016)093

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T1 - Identification of high transverse momentum top quarks in pp collisions at √s= 8 TeV with the ATLAS detector

AU - Aad, G

AU - Abbott, B.

AU - Abdallah, J

AU - Abdinov, O

AU - Aben, R

AU - Åkesson, Torsten

AU - Bocchetta, Simona

AU - BRYNGEMARK, LENE

AU - Doglioni, Caterina

AU - Floderus, Anders

AU - Hawkins, Anthony

AU - Hedberg, Vincent

AU - Ivarsson, Jenny

AU - Jarlskog, Göran

AU - Lytken, Else

AU - Mjörnmark, Ulf

AU - Smirnova, Oxana

AU - Viazlo, Oleksandr

AU - ATLAS Collaboration

N1 - Cited By :1 Export Date: 27 June 2017

PY - 2016

Y1 - 2016

N2 - This paper presents studies of the performance of several jet-substructure techniques, which are used to identify hadronically decaying top quarks with high transverse momentum contained in large-radius jets. The efficiency of identifying top quarks is measured using a sample of top-quark pairs and the rate of wrongly identifying jets from other quarks or gluons as top quarks is measured using multijet events collected with the ATLAS experiment in 20.3 fb−1of 8 TeV proton-proton collisions at the Large Hadron Collider. Predictions from Monte Carlo simulations are found to provide an accurate description of the performance. The techniques are compared in terms of signal efficiency and background rejection using simulations, covering a larger range in jet transverse momenta than accessible in the dataset. Additionally, a novel technique is developed that is optimized to reconstruct top quarks in events with many jets.[Figure not available: see fulltext.] © 2016, The Author(s).

AB - This paper presents studies of the performance of several jet-substructure techniques, which are used to identify hadronically decaying top quarks with high transverse momentum contained in large-radius jets. The efficiency of identifying top quarks is measured using a sample of top-quark pairs and the rate of wrongly identifying jets from other quarks or gluons as top quarks is measured using multijet events collected with the ATLAS experiment in 20.3 fb−1of 8 TeV proton-proton collisions at the Large Hadron Collider. Predictions from Monte Carlo simulations are found to provide an accurate description of the performance. The techniques are compared in terms of signal efficiency and background rejection using simulations, covering a larger range in jet transverse momenta than accessible in the dataset. Additionally, a novel technique is developed that is optimized to reconstruct top quarks in events with many jets.[Figure not available: see fulltext.] © 2016, The Author(s).

KW - Hadron-Hadron scattering (experiments)

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DO - 10.1007/JHEP06(2016)093

M3 - Article

SN - 1029-8479

VL - 2016

JO - Journal of High Energy Physics

JF - Journal of High Energy Physics

IS - 6

M1 - 93

ER -

Identification of high transverse momentum top quarks in pp collisions at √s= 8 TeV with the ATLAS detector

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