ATLAS Conference Notes

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2022-09-20
16:24

Search for dark photons from Higgs boson decays via $ZH$ production with a photon plus missing transverse momentum signature from $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
This paper describes a search for dark photons ($\gamma_d$) in Higgs boson decay ($H \to \gamma\gamma_d$) produced in proton-proton collisions through the $ZH$ production mode at the Large Hadron Collider at $\sqrt{s}=13$ TeV. [...]
ATLAS-CONF-2022-064. - 2022. - 37 p.
Original Communication (restricted to ATLAS) - Full text

2022-09-18
17:51

Measurement of the polarisation of $W$ bosons produced in top-quark decays using di-lepton events at $\sqrt{s} = 13$ TeV with the ATLAS experiment
A measurement of the polarisation of $W$ bosons produced in top decays is presented, using proton-proton collision data at a centre-of-mass energy of $\sqrt{s}$ = 13 TeV. [...]
ATLAS-CONF-2022-063. - 2022.
Original Communication (restricted to ATLAS) - Full text

2022-09-18
17:50

Search for leptonic charge asymmetry in $t\bar{t}W$ production in final states with three leptons at $\sqrt{s} = 13$ TeV
A search for the leptonic charge asymmetry ($A_{c}^{\ell}$) of top-quark-antiquark pair production in association with a $W$ boson ($t\bar{t}W$) is presented. [...]
ATLAS-CONF-2022-062. - 2022. - 36 p.
Original Communication (restricted to ATLAS) - Full text

2022-09-18
17:48

Measurement of lepton kinematic distributions in the $e\mu$ decay channel of $t\bar{t}$ events observed in $pp$ collisions at $\sqrt{s}=13\;$TeV with the ATLAS detector
The differential and double differential distributions of kinematic variables of leptons from decays of top quark pairs are measured using the full LHC Run II sample of data collected with the ATLAS detector. [...]
ATLAS-CONF-2022-061. - 2022. - 43 p.
Original Communication (restricted to ATLAS) - Full text

2022-09-12
21:39

Searches for lepton-flavour-violating decays of the Higgs boson into $e\tau$ and $\mu\tau$ in $\sqrt{s}=13$ TeV $pp$ collisions with the ATLAS detector
This note presents direct searches for lepton flavour violation in Higgs boson decays, $H\rightarrow e\tau$ and $H\rightarrow\mu\tau$, performed using data collected with the ATLAS detector at the LHC. [...]
ATLAS-CONF-2022-060. - 2022. - 53 p.
Original Communication (restricted to ATLAS) - Full text

2022-09-11
09:16

Search for direct production of electroweakinos in final states with one lepton, jets and missing transverse momentum and in p p collisions at √s = 13 TeV with the ATLAS detector
Two searches for electroweak production of chargino-neutralino, χ ̃1± χ ̃20, and chargino-chargino, χ ̃1+ χ ̃1−, pairs are presented. [...]
ATLAS-CONF-2022-059. - 2022.
Original Communication (restricted to ATLAS) - Full text

2022-09-11
09:11

Measurement of the top-quark mass in $t\bar{t} \to$ dilepton events with the ATLAS experiment using the template method in 13 TeV $pp$ collision data
This document describes the top-quark mass measurement in top-quark pair production using the full Run 2 dataset collected with the ATLAS experiment at $\sqrt{s}$=13 TeV, which amounts to 139 fb$^{-1}$. [...]
ATLAS-CONF-2022-058. - 2022.
Original Communication (restricted to ATLAS) - Full text

2022-09-09
11:22

Search for direct production of winos and higgsinos in events with two same-sign or three leptons in $pp$ collision data at $\sqrt{s} = 13$ TeV with the ATLAS detector
A search for supersymmetry targeting the direct production of winos and higgsinos is conducted in final states with either two leptons ($e$ or $\mu$) with the same electric charge, or at least three leptons. [...]
ATLAS-CONF-2022-057. - 2022. - 55 p.
Original Communication (restricted to ATLAS) - Full text

2022-08-16
18:45

Measurements of multijet event isotropies using optimal transport with the ATLAS detector
A measurement of novel event shapes characterizing the isotropy of collider events is performed in 139 fb$^{-1}$ of proton--proton collisions with $\sqrt{s}=13$ TeV centre-of-mass energy recorded with the ATLAS detector at CERN's Large Hadron Collider. [...]
ATLAS-CONF-2022-056. - 2022.
Original Communication (restricted to ATLAS) - Full text

2022-07-26
15:49

Study of ordered hadron chains in proton-proton, proton-lead and lead-lead collisions with the ATLAS detector
An analysis of momentum differences between charged hadrons in high--energy proton--proton, proton--lead and lead--lead collisions is performed in order to study the dynamics of hadronization. [...]
ATLAS-CONF-2022-055. - 2022. - 52 p.
Original Communication (restricted to ATLAS) - Full text

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