Skip to main content
Journal cover image

Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV

Publication ,  Journal Article
Sirunyan, AM; Tumasyan, A; Adam, W; Ambrogi, F; Bergauer, T; Brandstetter, J; Dragicevic, M; Erö, J; Escalante Del Valle, A; Flechl, M; Liko, D ...
Published in: Journal of High Energy Physics
November 1, 2019

A search for the standard model production of four top quarks (pp → t t ¯ t t ¯) is reported using single-lepton plus jets and opposite-sign dilepton plus jets signatures. Proton-proton collisions are recorded with the CMS detector at the LHC at a center-of-mass energy of 13 TeV in a sample corresponding to an integrated luminosity of 35.8 fb−1. A multivariate analysis exploiting global event and jet properties is used to discriminate t t ¯ t t ¯ from t t ¯ production. No significant deviation is observed from the predicted background. An upper limit is set on the cross section for t t ¯ t t ¯ production in the standard model of 48 fb at 95% confidence level. When combined with a previous measurement by the CMS experiment from an analysis of other final states, the observed signal significance is 1.4 standard deviations, and the combined cross section measurement is 13−9+11 fb. The result is also interpreted in the framework of effective field theory. [Figure not available: see fulltext.].

Altmetric Attention Stats
Dimensions Citation Stats

Published In

Journal of High Energy Physics

DOI

EISSN

1029-8479

Publication Date

November 1, 2019

Volume

2019

Issue

11

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics
 

Citation

APA
Chicago
ICMJE
MLA
NLM
Sirunyan, A. M., Tumasyan, A., Adam, W., Ambrogi, F., Bergauer, T., Brandstetter, J., … Alves, F. L. (2019). Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics, 2019(11). https://doi.org/10.1007/JHEP11(2019)082
Sirunyan, A. M., A. Tumasyan, W. Adam, F. Ambrogi, T. Bergauer, J. Brandstetter, M. Dragicevic, et al. “Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV.” Journal of High Energy Physics 2019, no. 11 (November 1, 2019). https://doi.org/10.1007/JHEP11(2019)082.
Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Bergauer T, Brandstetter J, et al. Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics. 2019 Nov 1;2019(11).
Sirunyan, A. M., et al. “Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV.” Journal of High Energy Physics, vol. 2019, no. 11, Nov. 2019. Scopus, doi:10.1007/JHEP11(2019)082.
Sirunyan AM, Tumasyan A, Adam W, Ambrogi F, Bergauer T, Brandstetter J, Dragicevic M, Erö J, Escalante Del Valle A, Flechl M, Frühwirth R, Jeitler M, Krammer N, Krätschmer I, Liko D, Madlener T, Mikulec I, Rad N, Schieck J, Schöfbeck R, Spanring M, Spitzbart D, Waltenberger W, Wulz CE, Zarucki M, Drugakov V, Mossolov V, Suarez Gonzalez J, Darwish MR, De Wolf EA, Di Croce D, Janssen X, Lauwers J, Lelek A, Pieters M, Rejeb Sfar H, Van Haevermaet H, Van Mechelen P, Van Putte S, Van Remortel N, Blekman F, Bols ES, Chhibra SS, D’Hondt J, De Clercq J, Lontkovskyi D, Lowette S, Marchesini I, Moortgat S, Moreels L, Python Q, Skovpen K, Tavernier S, Van Doninck W, Van Mulders P, Van Parijs I, Beghin D, Bilin B, Brun H, Clerbaux B, De Lentdecker G, Delannoy H, Dorney B, Favart L, Grebenyuk A, Kalsi AK, Luetic J, Popov A, Postiau N, Starling E, Thomas L, Vander Velde C, Vanlaer P, Vannerom D, Wang Q, Cornelis T, Dobur D, Khvastunov I, Roskas C, Trocino D, Tytgat M, Verbeke W, Vermassen B, Vit M, Zaganidis N, Bondu O, Bruno G, Caputo C, David P, Delaere C, Delcourt M, Giammanco A, Lemaitre V, Magitteri A, Prisciandaro J, Saggio A, Vidal Marono M, Vischia P, Zobec J, Alves FL. Search for the production of four top quarks in the single-lepton and opposite-sign dilepton final states in proton-proton collisions at √s = 13 TeV. Journal of High Energy Physics. 2019 Nov 1;2019(11).
Journal cover image

Published In

Journal of High Energy Physics

DOI

EISSN

1029-8479

Publication Date

November 1, 2019

Volume

2019

Issue

11

Related Subject Headings

  • Nuclear & Particles Physics
  • 5107 Particle and high energy physics
  • 5106 Nuclear and plasma physics
  • 4902 Mathematical physics
  • 0206 Quantum Physics
  • 0202 Atomic, Molecular, Nuclear, Particle and Plasma Physics
  • 0105 Mathematical Physics