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Measurement of the polarisation of single top quarks and antiquarks produced in the t-channel at s $$ \sqrt{s} $$ = 13 TeV and bounds on the tWb dipole operator from the ATLAS experiment
Publication Type: Academic Journal
Source(s): Journal of High Energy Physics, Vol 2022, Iss 11, Pp 1-62 (2022)
Abstract: Abstract A simultaneous measurement of the three components of the top-quark and top-antiquark polarisation vectors in t-channel single-top-quark production is presented. This analysis is based on data from proton–proton collisions at a centre-of-mass ...
Search for type-III seesaw heavy leptons in leptonic final states in pp collisions at $$\sqrt{s} = 13~\text {TeV}$$ s = 13 TeV with the ATLAS detector
Publication Type: Academic Journal
Source(s): European Physical Journal C: Particles and Fields, Vol 82, Iss 11, Pp 1-30 (2022)
Abstract: Abstract A search for the pair production of heavy leptons as predicted by the type-III seesaw mechanism is presented. The search uses proton–proton collision data at a centre-of-mass energy of 13 TeV, corresponding to $$139\,\text {fb}^{-1}$$ 139 fb -...
Search for long-lived charginos based on a disappearing-track signature using 136 fb $$^{-1}$$ - 1 of pp collisions at $$\sqrt{s}$$ s = 13 TeV with the ATLAS detector
Publication Type: Academic Journal
Source(s): European Physical Journal C: Particles and Fields, Vol 82, Iss 7, Pp 1-34 (2022)
Abstract: Abstract A search for long-lived charginos produced either directly or in the cascade decay of heavy prompt gluino states is presented. The search is based on proton–proton collision data collected at a centre-of-mass energy of $$\sqrt{s}$$ s = 13 T $$...
The ATLAS inner detector trigger performance in pp collisions at 13 TeV during LHC Run 2
Publication Type: Academic Journal
Source(s): European Physical Journal C: Particles and Fields, Vol 82, Iss 3, Pp 1-57 (2022)
Abstract: Abstract The design and performance of the inner detector trigger for the high level trigger of the ATLAS experiment at the Large Hadron Collider during the 2016–2018 data taking period is discussed. In 2016, 2017, and 2018 the ATLAS detector recorded ...
Performance of the ATLAS Level-1 topological trigger in Run 2
Publication Type: Academic Journal
Source(s): European Physical Journal C: Particles and Fields, Vol 82, Iss 1, Pp 1-26 (2022)
Abstract: Abstract During LHC Run 2 (2015–2018) the ATLAS Level-1 topological trigger allowed efficient data-taking by the ATLAS experiment at luminosities up to 2.1 $$\times $$ × 10 $$^{34}$$ 34 cm $$^{-2}$$ - 2 s $$^{-1}$$ - 1 , which exceeds the design value ...
Search for exotic decays of the Higgs boson into b b ¯ $$ \overline{b} $$ and missing transverse momentum in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector
Publication Type: Academic Journal
Source(s): Journal of High Energy Physics, Vol 2022, Iss 1, Pp 1-38 (2022)
Abstract: Abstract A search for the exotic decay of the Higgs boson (H) into a b b ¯ $$ \overline{b} $$ resonance plus missing transverse momentum is described. The search is performed with the ATLAS detector at the Large Hadron Collider using 139 fb −1 of pp co...
Configuration and performance of the ATLAS b-jet triggers in Run 2
Publication Type: Academic Journal
Source(s): European Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-45 (2021)
Abstract: Abstract Several improvements to the ATLAS triggers used to identify jets containing b-hadrons (b-jets) were implemented for data-taking during Run 2 of the Large Hadron Collider from 2016 to 2018. These changes include reconfiguring the b-jet trigger ...
Search for chargino–neutralino pair production in final states with three leptons and missing transverse momentum in $$\sqrt{s} = 13$$ s = 13 TeV pp collisions with the ATLAS detector
Publication Type: Academic Journal
Source(s): European Physical Journal C: Particles and Fields, Vol 81, Iss 12, Pp 1-55 (2021)
Abstract: Abstract A search for chargino–neutralino pair production in three-lepton final states with missing transverse momentum is presented. The study is based on a dataset of $$\sqrt{s} = 13$$ s = 13 TeV pp collisions recorded with the ATLAS detector at the ...
Measurement of b-quark fragmentation properties in jets using the decay B ± → J/ψK ± in pp collisions at s $$ \sqrt{s} $$ = 13 TeV with the ATLAS detector
Publication Type: Academic Journal
Source(s): Journal of High Energy Physics, Vol 2021, Iss 12, Pp 1-46 (2021)
Abstract: Abstract The fragmentation properties of jets containing b-hadrons are studied using charged B mesons in 139 fb −1 of pp collisions at s $$ \sqrt{s} $$ = 13 TeV, recorded with the ATLAS detector at the LHC during the period from 2015 to 2018. The B mes...
Search for R-parity-violating supersymmetry in a final state containing leptons and many jets with the ATLAS experiment using $$\sqrt{s} = 13\hbox { TeV}$$ s = 13 TeV proton–proton collision data
Publication Type: Academic Journal
Source(s): European Physical Journal C: Particles and Fields, Vol 81, Iss 11, Pp 1-39 (2021)
Abstract: Abstract A search for R-parity-violating supersymmetry in final states characterized by high jet multiplicity, at least one isolated light lepton and either zero or at least three b-tagged jets is presented. The search uses $${139}\,{\text {fb}^{-1}}$$...