ATLAS Conference Notes

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2023-06-02
04:28

Measurement of $t$-channel production of single top quarks and antiquarks in $pp$ collisions at 13 TeV using the full ATLAS Run 2 dataset
The production of single top quarks and top antiquarks via the $t$-channel exchange of a virtual $W$ boson are measured in proton--proton collisions at a centre-of-mass energy of 13 TeV. [...]
ATLAS-CONF-2023-026. - 2023. - 35 p.
Original Communication (restricted to ATLAS) - Full text

2023-05-27
19:58

Evidence for the Higgs boson decay to a $Z$ boson and a photon at the LHC
The first evidence is presented for the Higgs boson decay to a $Z$ boson and a photon, with a statistical significance of 3.4 standard deviations. [...]
ATLAS-CONF-2023-025. - 2023.
Original Communication (restricted to ATLAS) - Full text

2023-05-20
19:57

Differential cross-section measurements of the production of four charged leptons in association with two jets using the ATLAS detector
Differential cross-sections are measured for the production of four charged leptons in association with two jets. [...]
ATLAS-CONF-2023-024. - 2023.
Original Communication (restricted to ATLAS) - Full text

2023-05-19
21:13

Measurement and interpretation of same-sign $W$ boson pair production in association with two jets in $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
This paper presents the measurement of fiducial and differential cross sections for the electroweak and inclusive production of a same-sign $W$ boson pair in association with two jets ($W^\pm W^\pm jj$) using $139$ fb$^{-1}$ of proton-proton collision data recorded at a centre-of-mass energy of $\sqrt{s}=13$ TeV by the ATLAS detector at the Large Hadron Collider. [...]
ATLAS-CONF-2023-023. - 2023. - 49 p.
Original Communication (restricted to ATLAS) - Full text

2023-05-19
21:08

Search for new phenomena in two-body invariant mass distributions using unsupervised machine learning for anomaly detection at $\sqrt{s} = 13$ TeV with the ATLAS detector
Searches for new resonances in two-body invariant mass distributions are performed using an unsupervised anomaly detection technique in events produced in $pp$ collisions at a center-of-mass energy of 13 TeV recorded by the ATLAS detector at the LHC. [...]
ATLAS-CONF-2023-022. - 2023. - 9 p.
Original Communication (restricted to ATLAS) - Full text

2023-05-16
12:30

Search for dark mesons decaying to top and bottom quarks with the ATLAS detector in 140 fb$^{-1}$ of proton-proton collisions at $\sqrt{s}=13~$TeV
A search for dark mesons originating from strongly-coupled, $SU(2)$ dark flavour symmetry conserving models and decaying gaugephobically to pure Standard Model final states containing top and bottom quarks in fully hadronic topologies is performed. [...]
ATLAS-CONF-2023-021. - 2023.
Original Communication (restricted to ATLAS) - Full text

2023-04-25
20:07

Search for singly produced vector-like top partners in multilepton final states with $139$ $\mathrm{fb}^{-1}$ data collected from $pp$ collisions at $\sqrt{s} = 13$ TeV with the ATLAS detector
A search for the single production of vector-like top partners ($T$) optimized for final states with a $Z$ boson decaying to a pair of electrons or muons is presented, using the full Run 2 dataset corresponding to $139$ $\mathrm{fb}^{-1}$ of $pp$ collisions at $\sqrt{s} = 13$ TeV, collected in 2015–2018 with the ATLAS detector at the Large Hadron Collider. [...]
ATLAS-CONF-2023-020. - 2023. - 30 p.
Original Communication (restricted to ATLAS) - Full text

2023-04-03
14:56

Measurement of the total and differential cross-sections of $t\bar{t}W$ production in $pp$ collisions at 13 TeV with the ATLAS detector
Measurements of both the inclusive and differential production cross-sections of a top-quark-antiquark pair in association with a $W$ boson ($t\bar{t}W$) are presented [...]
ATLAS-CONF-2023-019. - 2023.
Original Communication (restricted to ATLAS) - Full text

2023-04-03
14:55

Search for pairs of muons with small displacements in $pp$ collisions at $\sqrt s = 13$ TeV with the ATLAS detector
A search for pairs of opposite electrically charged muons with impact parameters in the millimetre range is presented, using 139 fb$^{-1}$ of $\sqrt{s}$ = 13 TeV $pp$ collision data from the ATLAS detector at the LHC. [...]
ATLAS-CONF-2023-018. - 2023. - 14 p.
Original Communication (restricted to ATLAS) - Full text - Full text

2023-04-03
14:53

Search for pair production of squarks or gluinos decaying via sleptons or weak bosons in final states with two same-sign or three leptons with the ATLAS detector
A search for pair production of squarks or gluinos decaying via sleptons or weak bosons is reported. [...]
ATLAS-CONF-2023-017. - 2023. - 36 p.
Original Communication (restricted to ATLAS) - Full text

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