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Performance of top-quark and W -boson tagging with ATLAS in Run 2 of the LHC

Publication ,  Journal Article
Aaboud, M; Aad, G; Abbott, B; Abdinov, O; Abeloos, B; Abhayasinghe, DK; Abidi, SH; AbouZeid, OS; Abraham, NL; Abramowicz, H; Abreu, H; Adam, L ...
Published in: European Physical Journal C
May 1, 2019
Published version (DOI)

The performance of identification algorithms (“taggers”) for hadronically decaying top quarks and W bosons in pp collisions at s = 13 TeV recorded by the ATLAS experiment at the Large Hadron Collider is presented. A set of techniques based on jet shape observables are studied to determine a set of optimal cut-based taggers for use in physics analyses. The studies are extended to assess the utility of combinations of substructure observables as a multivariate tagger using boosted decision trees or deep neural networks in comparison with taggers based on two-variable combinations. In addition, for highly boosted top-quark tagging, a deep neural network based on jet constituent inputs as well as a re-optimisation of the shower deconstruction technique is presented. The performance of these taggers is studied in data collected during 2015 and 2016 corresponding to 36.1 fb - 1 for the tt¯ and γ+ jet and 36.7 fb - 1 for the dijet event topologies.

Duke Scholars

Ayana T. Arce
Author Ayana T. Arce Physics
Ashutosh V. Kotwal
Author Ashutosh V. Kotwal Physics
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Published In

European Physical Journal C

DOI

10.1140/epjc/s10052-019-6847-8

EISSN

1434-6052

ISSN

1434-6044

Publication Date

May 1, 2019

Volume

79

Issue

5

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
 

Citation

APA
Chicago
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MLA
NLM
Aaboud, M., Aad, G., Abbott, B., Abdinov, O., Abeloos, B., Abhayasinghe, D. K., … Armitage, L. J. (2019). Performance of top-quark and W -boson tagging with ATLAS in Run 2 of the LHC. European Physical Journal C, 79(5). https://doi.org/10.1140/epjc/s10052-019-6847-8
Aaboud, M., G. Aad, B. Abbott, O. Abdinov, B. Abeloos, D. K. Abhayasinghe, S. H. Abidi, et al. “Performance of top-quark and W -boson tagging with ATLAS in Run 2 of the LHC.” European Physical Journal C 79, no. 5 (May 1, 2019). https://doi.org/10.1140/epjc/s10052-019-6847-8.
Aaboud M, Aad G, Abbott B, Abdinov O, Abeloos B, Abhayasinghe DK, et al. Performance of top-quark and W -boson tagging with ATLAS in Run 2 of the LHC. European Physical Journal C. 2019 May 1;79(5).
Aaboud, M., et al. “Performance of top-quark and W -boson tagging with ATLAS in Run 2 of the LHC.” European Physical Journal C, vol. 79, no. 5, May 2019. Scopus, doi:10.1140/epjc/s10052-019-6847-8.
Aaboud M, Aad G, Abbott B, Abdinov O, Abeloos B, Abhayasinghe DK, Abidi SH, AbouZeid OS, Abraham NL, Abramowicz H, Abreu H, Abulaiti Y, Acharya BS, Adachi S, Adam L, Adamczyk L, Adelman J, Adersberger M, Adiguzel A, Adye T, Affolder AA, Afik Y, Agheorghiesei C, Aguilar-Saavedra JA, Ahmadov F, Aielli G, Akatsuka S, Åkesson TPA, Akilli E, Akimov AV, Alberghi GL, Albert J, Albicocco P, Alconada Verzini MJ, Alderweireldt S, Aleksa M, Aleksandrov IN, Alexa C, Alexopoulos T, Alhroob M, Ali B, Alimonti G, Alison J, Alkire SP, Allaire C, Allbrooke BMM, Allen BW, Allport PP, Aloisio A, Alonso A, Alonso F, Alpigiani C, Alshehri AA, Alstaty MI, Alvarez Gonzalez B, Álvarez Piqueras D, Alviggi MG, Amadio BT, Amaral Coutinho Y, Ambler A, Ambroz L, Amelung C, Amidei D, Amor Dos Santos SP, Amoroso S, Amrouche CS, Anastopoulos C, Ancu LS, Andari N, Andeen T, Anders CF, Anders JK, Anderson KJ, Andreazza A, Andrei V, Anelli CR, Angelidakis S, Angelozzi I, Angerami A, Anisenkov AV, Annovi A, Antel C, Anthony MT, Antonelli M, Antrim DJA, Anulli F, Aoki M, Pozo JAA, Aperio Bella L, Arabidze G, Araque JP, Araujo Ferraz V, Araujo Pereira R, Arce ATH, Ardell RE, Arduh FA, Arguin JF, Argyropoulos S, Armbruster AJ, Armitage LJ. Performance of top-quark and W -boson tagging with ATLAS in Run 2 of the LHC. European Physical Journal C. 2019 May 1;79(5).
Journal cover image

Published In

European Physical Journal C

DOI

10.1140/epjc/s10052-019-6847-8

EISSN

1434-6052

ISSN

1434-6044

Publication Date

May 1, 2019

Volume

79

Issue

5

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5102 Atomic, molecular and optical physics
  • 5101 Astronomical sciences
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics