ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider

Atlas Collaboration

Research output: Contribution to journalArticle

Abstract

This paper reviews and extends searches for the direct pair production of the scalar supersymmetric partners of the top and bottom quarks in proton–proton collisions collected by the ATLAS collaboration during the LHC Run 1. Most of the analyses use 20 fb−1of collisions at a centre-of-mass energy of √s = 8 TeV, although in some case an additional 4.7 fb−1of collision data at √s = 7 TeV are used. New analyses are introduced to improve the sensitivity to specific regions of the model parameter space. Since no evidence of third-generation squarks is found, exclusion limits are derived by combining several analyses and are presented in both a simplified model framework, assuming simple decay chains, as well as within the context of more elaborate phenomenological supersymmetric models.

Original languageEnglish (US)
Article number510
JournalEuropean Physical Journal C
Volume75
Issue number10
DOIs
StatePublished - Oct 1 2015

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Colliding beam accelerators
pair production
collisions
exclusion
center of mass
quarks
scalars
sensitivity
decay
energy

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Physics and Astronomy (miscellaneous)

Cite this

ATLAS Run 1 searches for direct pair production of third-generation squarks at the Large Hadron Collider. / Atlas Collaboration.

In: European Physical Journal C, Vol. 75, No. 10, 510, 01.10.2015.

Research output: Contribution to journalArticle

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abstract = "This paper reviews and extends searches for the direct pair production of the scalar supersymmetric partners of the top and bottom quarks in proton–proton collisions collected by the ATLAS collaboration during the LHC Run 1. Most of the analyses use 20 fb−1of collisions at a centre-of-mass energy of √s = 8 TeV, although in some case an additional 4.7 fb−1of collision data at √s = 7 TeV are used. New analyses are introduced to improve the sensitivity to specific regions of the model parameter space. Since no evidence of third-generation squarks is found, exclusion limits are derived by combining several analyses and are presented in both a simplified model framework, assuming simple decay chains, as well as within the context of more elaborate phenomenological supersymmetric models.",
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AU - Aben, R.

AU - Abolins, M.

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AU - Alonso, A.

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AB - This paper reviews and extends searches for the direct pair production of the scalar supersymmetric partners of the top and bottom quarks in proton–proton collisions collected by the ATLAS collaboration during the LHC Run 1. Most of the analyses use 20 fb−1of collisions at a centre-of-mass energy of √s = 8 TeV, although in some case an additional 4.7 fb−1of collision data at √s = 7 TeV are used. New analyses are introduced to improve the sensitivity to specific regions of the model parameter space. Since no evidence of third-generation squarks is found, exclusion limits are derived by combining several analyses and are presented in both a simplified model framework, assuming simple decay chains, as well as within the context of more elaborate phenomenological supersymmetric models.

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