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ATLAS Notes

Latest additions:
2020-06-05
07:59
Rescuing VBF Higgs Invisible Events with Novel Vertex Selection / Safdari, Murtaza (SLAC National Accelerator Laboratory) ; Schwartzman, Ariel (SLAC National Accelerator Laboratory) ; Cairo, Valentina Maria (SLAC National Accelerator Laboratory) ; Pettersson, Nora Emilia (University of Massachusetts, Amherst) ; Goblirsch-Kolb, Maximilian (Brandeis University, Department of Physics) ; Lee, Graham Richard (University of Bergen) ; Su, Dong (SLAC National Accelerator Laboratory) - Advisor vertexing convenor tracking convenor tracking convenor vertexing convenor Internal Reviewer
This is an update to, and extension of, the work in ATL-PHYS-PROC-2019-044. [...]
ATL-PHYS-PROC-2020-042.
- 2020. - 5 p.
Original Communication (restricted to ATLAS) - Full text

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2020-06-01
22:34
Search for chargino-neutralino pair production in final states with three leptons and missing transverse momentum in $\sqrt{s}$ = 13 TeV p-p collisions with the ATLAS detector
A search for chargino-neutralino pair production in three-lepton final states with missing transverse momentum in $\sqrt{s}$ = 13 TeV p-p collisions with the ATLAS detector is presented. [...]
ATLAS-CONF-2020-015.
- 2020.
Original Communication (restricted to ATLAS) - Full text

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2020-06-01
22:32
Test of the universality of $\tau$ and $\mu$ lepton couplings in W boson decays from $t\bar{t}$ events at 13 TeV with the ATLAS detector
The Standard Model of particle physics constitutes our current best understanding of physics at the smallest scales. [...]
ATLAS-CONF-2020-014.
- 2020.
Original Communication (restricted to ATLAS) - Full text

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2020-06-01
22:31
Evidence for $t\bar{t}t\bar{t}$ production in the multilepton final state in proton-proton collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
A search for four-top-quark production using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector corresponding to an integrated luminosity of 139 fb$^{-1}$ is presented. [...]
ATLAS-CONF-2020-013.
- 2020. - 26 p.
Original Communication (restricted to ATLAS) - Full text

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2020-06-01
22:29
Reconstruction and identification of boosted di-$\tau$ systems in a search for Higgs boson pairs using 13 TeV proton-proton collision data in ATLAS
In this note, a novel technique, referred to as the di-$\tau$ tagger, is designed to reconstruct and identify hadronically decaying $\tau^+\tau^-$ pairs with a large Lorentz boost in the ATLAS experiment at the Large Hadron Collider. [...]
ATLAS-CONF-2020-012.
- 2020.
Original Communication (restricted to ATLAS) - Full text

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2020-06-01
22:26
Measurement of hadronic event shapes in multijet final states at $\sqrt{s} = 13$ TeV with the ATLAS detector
A measurement of event shape variables in proton-proton collisions at large momentum transfer is presented using data collected at $\sqrt{s} = 13$ TeV with the ATLAS detector at the Large Hadron Collider. [...]
ATLAS-CONF-2020-011.
- 2020.
Original Communication (restricted to ATLAS) - Full text

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2020-06-01
22:20
Measurement of light-by-light scattering and search for axion-like particles with 2.2 nb$^{−1}$ of Pb+Pb data with the ATLAS detector
This note describes a measurement of light-by-light scattering based on Pb+Pb collision data recorded by the ATLAS experiment during the Run 2 of the LHC. [...]
ATLAS-CONF-2020-010.
- 2020.
Original Communication (restricted to ATLAS) - Full text

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2020-05-29
14:05
Dark matter summary plot : Update May 2020
This is an update of a summary plot from the Exotics WG for the axial-vector $Z^{\prime}$ dark matter simplified model, using new results as of May 2020..
ATL-PHYS-PUB-2020-015.
- 2020.
Original Communication (restricted to ATLAS) - Full text

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2020-05-29
13:14
Construction and geometrical precision assessment of the Micromegas detectors for the ATLAS New Small Wheel upgrade / Minashvili, Irakli (Joint Institute for Nuclear Research)
The upgrade of the Large Hadron Collider (LHC) to the High Luminosity LHC (HL-LHC) is required to probe the physics beyond Standard Model. [...]
ATL-MUON-PROC-2020-011.
- 2020. - 6 p.
Original Communication (restricted to ATLAS) - Full text

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2020-05-25
18:44
Deep Sets based Neural Networks for Impact Parameter Flavour Tagging in ATLAS
This work introduces a new architecture for Flavour Tagging based on Deep Sets, which models the jet as a set of tracks, in order to identify the experimental signatures of jets containing heavy flavour hadrons using the impact parameters and kinematics of the tracks. [...]
ATL-PHYS-PUB-2020-014.
- 2020.
Original Communication (restricted to ATLAS) - Full text

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