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Measurement of KS0 and Λ production in tt¯ dileptonic events in pp collisions at √s= 7 TeV with the ATLAS detector

Publication ,  Journal Article
Aad, G; Abbott, B; Abbott, DC; Abdinov, O; Abud, AA; Abeling, K; Abhayasinghe, DK; Abidi, SH; AbouZeid, OS; Abraham, NL; Abramowicz, H; Ai, X ...
Published in: European Physical Journal C
December 1, 2019
Published version (DOI)

Measurements of KS0 and Λ production in tt¯ final states have been performed. They are based on a data sample with integrated luminosity of 4.6 fb - 1 from proton–proton collisions at a centre-of-mass energy of 7 TeV, collected in 2011 with the ATLAS detector at the Large Hadron Collider. Neutral strange particles are separated into three classes, depending on whether they are contained in a jet, with or without a b-tag, or not associated with a selected jet. The aim is to look for differences in their main kinematic distributions. A comparison of data with several Monte Carlo simulations using different hadronisation and fragmentation schemes, colour reconnection models and different tunes for the underlying event has been made. The production of neutral strange particles in tt¯ dileptonic events is found to be well described by current Monte Carlo models for KS0 and Λ production within jets, but not for those produced outside jets.

Duke Scholars

Ashutosh V. Kotwal
Author Ashutosh V. Kotwal Physics
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Published In

European Physical Journal C

DOI

10.1140/epjc/s10052-019-7512-y

EISSN

1434-6052

ISSN

1434-6044

Publication Date

December 1, 2019

Volume

79

Issue

12

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

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MLA
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Aad, G., Abbott, B., Abbott, D. C., Abdinov, O., Abud, A. A., Abeling, K., … Ferraz, V. A. (2019). Measurement of KS0 and Λ production in tt¯ dileptonic events in pp collisions at √s= 7 TeV with the ATLAS detector. European Physical Journal C, 79(12). https://doi.org/10.1140/epjc/s10052-019-7512-y
Aad, G., B. Abbott, D. C. Abbott, O. Abdinov, A. A. Abud, K. Abeling, D. K. Abhayasinghe, et al. “Measurement of KS0 and Λ production in tt¯ dileptonic events in pp collisions at √s= 7 TeV with the ATLAS detector.” European Physical Journal C 79, no. 12 (December 1, 2019). https://doi.org/10.1140/epjc/s10052-019-7512-y.
Aad G, Abbott B, Abbott DC, Abdinov O, Abud AA, Abeling K, et al. Measurement of KS0 and Λ production in tt¯ dileptonic events in pp collisions at √s= 7 TeV with the ATLAS detector. European Physical Journal C. 2019 Dec 1;79(12).
Aad, G., et al. “Measurement of KS0 and Λ production in tt¯ dileptonic events in pp collisions at √s= 7 TeV with the ATLAS detector.” European Physical Journal C, vol. 79, no. 12, Dec. 2019. Scopus, doi:10.1140/epjc/s10052-019-7512-y.
Aad G, Abbott B, Abbott DC, Abdinov O, Abud AA, Abeling K, Abhayasinghe DK, Abidi SH, AbouZeid OS, Abraham NL, Abramowicz H, Abreu H, Abulaiti Y, Acharya BS, Achkar B, Adachi S, Adam L, Bourdarios CA, Adamczyk L, Adamek L, Adelman J, Adersberger M, Adiguzel A, Adorni S, Adye T, Affolder AA, Afik Y, Agapopoulou C, Agaras MN, Aggarwal A, Agheorghiesei C, Aguilar-Saavedra JA, Ahmadov F, Ahmed WS, Ai X, Aielli G, Akatsuka S, Åkesson TPA, Akilli E, Akimov AV, Khoury KA, Alberghi GL, Albert J, Verzini MJA, Alderweireldt S, Aleksa M, Aleksandrov IN, Alexa C, Alexandre D, Alexopoulos T, Alfonsi A, 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, Estevez MA, Piqueras DÁ, Alviggi MG, Coutinho YA, Ambler A, Ambroz L, Amelung C, Amidei D, Santos SPAD, Amoroso S, Amrouche CS, An F, Anastopoulos C, Andari N, Andeen T, Anders CF, Anders JK, Andreazza A, Andrei V, Anelli CR, Angelidakis S, Angerami A, Anisenkov AV, Annovi A, Antel C, Anthony MT, Antonelli M, Antrim DJA, Anulli F, Aoki M, Pozo JAA, Bella LA, Arabidze G, Araque JP, Ferraz VA. Measurement of KS0 and Λ production in tt¯ dileptonic events in pp collisions at √s= 7 TeV with the ATLAS detector. European Physical Journal C. 2019 Dec 1;79(12).
Journal cover image

Published In

European Physical Journal C

DOI

10.1140/epjc/s10052-019-7512-y

EISSN

1434-6052

ISSN

1434-6044

Publication Date

December 1, 2019

Volume

79

Issue

12

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