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ATLAS Notes

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2021-07-23
12:41
ATLAS Computing Acknowledgements
Document listing the centres providing major contributions to ATLAS computing in terms of CPU resources in 2020 and 2021. [...]
ATL-SOFT-PUB-2021-003. - 2021.
Original Communication (restricted to ATLAS) - Full text

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2021-07-23
10:28
METNet: A combined $p^{\text{miss}}_{\text{T}}$ working point using a neural network with the ATLAS detector
In order to suppress pile-up effects and improve the resolution, ATLAS employs a suite of working points for missing transverse momentum ($p_{\text{T}}^{\text{miss}}$) reconstruction, and each is optimal for different event topologies and different beam conditions. [...]
ATL-PHYS-PUB-2021-025. - 2021.
Original Communication (restricted to ATLAS) - Full text

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2021-07-23
10:05
Expected tracking and related performance with the updated ATLAS Inner Tracker layout at the High-Luminosity LHC
As part of the ATLAS Phase-II upgrade, the current Inner Detector of the experiment will be replaced with a new all-silicon Inner Tracker (ITk) designed to face the challenging environment associated with the high number of collisions per bunch crossing. [...]
ATL-PHYS-PUB-2021-024. - 2021.
Original Communication (restricted to ATLAS) - Full text

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2021-07-23
09:58
Expected performance of the ATLAS detector under different High-Luminosity LHC conditions
A major upgrade of the LHC is planned to be completed by 2027, resulting in the so-called High-Luminosity LHC (HL-LHC) operating at a target luminosity of $5\times10^{34}~\mathrm{cm}^{-2}\mathrm{s}^{-1}$, with a possibility to reach an ultimate peak luminosity of up to $7.5\times10^{34}~\mathrm{cm}^{-2}\mathrm{s}^{-1}$. [...]
ATL-PHYS-PUB-2021-023. - 2021.
Original Communication (restricted to ATLAS) - Full text

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2021-07-23
09:45
Combined effective field theory interpretation of differential cross-sections measurements of WW, WZ, 4l, and Z-plus-two-jets production using ATLAS data
Coefficients of the Standard Model Effective Field Theory are constrained in a combined interpretation of differential cross-section measurements of $WW$ and $WZ$ production in leptonic final states, four-lepton production, and the production of a leptonically decaying $Z$ boson in vector-boson-fusion topologies. [...]
ATL-PHYS-PUB-2021-022. - 2021. - 28 p.
Original Communication (restricted to ATLAS) - Full text

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2021-07-23
03:43
Measurement of the $t\bar{t}t\bar{t}$ production at 13 TeV with the ATLAS detector at the LHC / Oncel, Omer Ogul (University of Bonn (DE))
Two measurements and their combination for the $t\bar{t}t\bar{t}$ production cross-section analysis 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 LHC are presented. [...]
ATL-PHYS-PROC-2021-042. - 2021. - 5 p.
Original Communication (restricted to ATLAS) - Full text

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2021-07-16
16:59
ATLAS Results with Beauty Mesons / Perrevoort, Ann-Kathrin (Nikhef National institute for subatomic physics (NL))
A broad range of measurements involving $B$ mesons are performed with the ATLAS experiment at the Large Hadron Collider, of which a selection is discussed in this note. [...]
ATL-PHYS-PROC-2021-041. - 2021. - 6 p.
Original Communication (restricted to ATLAS) - Full text

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2021-07-13
14:47
Prospects for Higgs and di-Higgs measurements at the ATLAS experiment / Betti, Alessandra (Southern Methodist University (US))
The large dataset of about 3000 $\rm{fb}^{-1}$ that will be collected at the High Luminosity LHC (HL-LHC) will be used to measure Higgs boson processes in detail. [...]
ATL-PHYS-PROC-2021-040. - 2021. - 7 p.
Original Communication (restricted to ATLAS) - Full text

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2021-07-13
14:46
Measurements of W and Z boson production in ATLAS / Wu, Zhibo (Université Paris-Saclay (FR)) ; Balli, Fabrice (Université Paris-Saclay (FR)) ; Deliot, Frederic (Université Paris-Saclay (FR)) - Institute review Institute review
Precision measurements of the production cross-sections of W and Z boson at LHC provide important tests of perturbative QCD and information about the parton distribution functions for quarks within the proton. [...]
ATL-PHYS-PROC-2021-039. - 2021. - 9 p.
Original Communication (restricted to ATLAS) - Full text

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2021-07-11
23:19
The Data Acquisition System for the ATLAS Phase-II TileCalorimeter Demonstrator / Carrio Argos, Fernando (Univ. of Valencia and CSIC (ES))
The Tile Calorimeter (TileCal) is the central hadronic calorimeter of the ATLAS experiment at Large Hadron Collider (LHC). [...]
ATL-TILECAL-PROC-2021-006. - 2021. - 4 p.
Original Communication (restricted to ATLAS) - Full text

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