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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

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2023-05-27
19:54
Effective field theory interpretation of the measurement of off-shell Higgs boson production from $ZZ \rightarrow 4\ell$ and $ZZ \rightarrow 2\ell2\nu$ decay channels with the ATLAS detector
This note reports on the effective field theory (EFT) interpretation of the measurement of off-shell Higgs boson production using 139 fb$^{-1}$ of proton-proton collision data at a centre-of-mass energy of 13 TeV, collected by the ATLAS detector at the Large Hadron Collider. [...]
ATL-PHYS-PUB-2023-012. - 2023.
Original Communication (restricted to ATLAS) - Full text

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2023-05-25
18:05
$tX$ and $t\bar{t}$X and their EFT interpretation in ATLAS and CMS / Fabbri, Federica (University of Glasgow (GB))
This contribution reports the most recent results on tX and $t\bar{t}$X production from the ATLAS and CMS collaborations, including the $t\bar{t}t\bar{t}$ observation from CMS and the first differential cross-section for $t\bar{t}W$ production from ATLAS. [...]
ATL-PHYS-PROC-2023-015. - 2023. - 4 p.
Original Communication (restricted to ATLAS) - Full text

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2023-05-24
13:33
Ready for LHC Run III: The ATLAS New Small Wheel and the MicroMegas chambers performances / Mancini, Giada (INFN e Laboratori Nazionali di Frascati (IT))
The two New Small Wheels (NSW) for the upgrade of the ATLAS Muon Spectrometer are now installed in the experiment and ready to collect data in LHC Run III, started in July 2022. [...]
ATL-MUON-PROC-2023-002. - 2023. - 4 p.
Original Communication (restricted to ATLAS) - Full text

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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

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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

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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

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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

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2023-05-15
19:09
Standard Model soft and hard QCD at ATLAS and CMS / Rossini, Lorenzo (Deutsches Elektronen-Synchrotron (DE))
The events collected at the LHC are dominated by production of hard and soft QCD processes. [...]
ATL-PHYS-PROC-2023-014. - 2023. - 4 p.
Original Communication (restricted to ATLAS) - Full text

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2023-05-15
18:20
Standard Model highlights at ATLAS / Kivernyk, Oleh (University of Bonn (DE))
This contribution reviews the latest high-precision measurements from ATLAS, which include an improved measurement of the W-boson mass, a new method for measuring double-differential $p_T$ and rapidity cross sections of the Z boson and determining the strong coupling constant, and measurements of fiducial and differential $W^+W^-$ cross sections..
ATL-PHYS-PROC-2023-013. - 2023. - 4 p.
Original Communication (restricted to ATLAS) - Full text

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Fokuser på:
ATLAS Conference Contributions (5,259)
ATLAS PUB Notes (2,980)
ATLAS Conference Notes (1,204)