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ATLAS PUB Notes

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2018-07-16
13:22
Jet Mass Resolutions in ATLAS using Run 2 Monte Carlo Simulation
The jet mass resolution (JMR) and its uncertainty are amongst the limiting systematic effects for precision measurements and searches for physics beyond the Standard Model. [...]
ATL-PHYS-PUB-2018-015. - 2018.
Original Communication (restricted to ATLAS) - Full text

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2018-07-16
07:31
Performance of mass-decorrelated jet substructure observables for hadronic two-body decay tagging in ATLAS
Mass-decorrelated jet substructure observables have the potential to increase the sensitivity of searches for new physics in final states with high-$p_{\mathrm{T}}$ hadronically decaying resonances, both by minimising the sculpting of background jet mass distributions and enabling more robust background estimation. [...]
ATL-PHYS-PUB-2018-014. - 2018.
Original Communication (restricted to ATLAS) - Full text

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2018-07-16
07:29
Generalized Numerical Inversion: A Neural Network Approach to Jet Calibration
Jets that are reconstructed by the ATLAS detector are corrected to ensure that the reported energy is an unbiased measurement of the particle-level jet energy. [...]
ATL-PHYS-PUB-2018-013. - 2018.
Original Communication (restricted to ATLAS) - Full text

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2018-07-13
18:44
Track assisted techniques for jet substructure
The substructure of large-radius (large-$R$) jets provides an important handle to discriminate hadronic decays such as $W\to q{q}$, $H\to bb$, $H\to W(q{q})W^*(q{q})$, and $t\to W(q{q})b$ from QCD multijet backgrounds. [...]
ATL-PHYS-PUB-2018-012. - 2018.
Original Communication (restricted to ATLAS) - Full text

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2018-07-12
23:19
Impact of Pile-up on Jet Constituent Multiplicity in ATLAS
One of the biggest challenges facing jet constituent multiplicity measurements is contamination from extraneous sources of soft radiation, such as pile-up. [...]
ATL-PHYS-PUB-2018-011. - 2018.
Original Communication (restricted to ATLAS) - Full text

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2018-07-12
23:06
Impact of theory uncertainties related to Higgs boson production in the $H\rightarrow Z Z^{*}\rightarrow 4l$ and the $t\bar{t}H$ channels with the ATLAS detector at the HL-LHC
A study is presented on the impact of theory uncertainties related to the Higgs boson production in the $H \rightarrow Z Z^{*} \rightarrow 4l$, $t\bar{t}H,H\rightarrow \gamma\gamma$ and $t\bar{t}H$ multi-leptons channels, using 14 TeV proton-proton collisions at the High Luminosity LHC with 3000 $fb^{-1}$. [...]
ATL-PHYS-PUB-2018-010. - 2018. - 10 p.
Original Communication (restricted to ATLAS) - Full text

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2018-07-12
09:26
The new Fast Calorimeter Simulation in ATLAS
ATLAS relies on very large samples of simulated events for delivering high-quality and competitive physics results, but producing these samples is very CPU intensive when using the full GEANT4 detector simulation. [...]
ATL-SOFT-PUB-2018-002. - 2018.
Original Communication (restricted to ATLAS) - Full text

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2018-07-12
09:20
Deep generative models for fast shower simulation in ATLAS
The need for large scale and high fidelity simulated samples for the extensive physics program of the ATLAS experiment at the Large Hadron Collider motivates the development of new simulation techniques. [...]
ATL-SOFT-PUB-2018-001. - 2018.
Original Communication (restricted to ATLAS) - Full text

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2018-07-11
12:49
Improvements in $t\bar{t}$ modelling using NLO+PS Monte Carlo generators for Run2
Monte Carlo generators at next-to-leading order (NLO) precision in QCD matched to a parton shower (PS) have been extensively used by ATLAS to model top-quark pair production. [...]
ATL-PHYS-PUB-2018-009. - 2018.
Original Communication (restricted to ATLAS) - Full text

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2018-07-09
21:33
Modeling the Mobility and Lorentz angle for the ATLAS Pixel Detector
The electron and hole mobility plays a key role in determining the cluster shape in the ATLAS silicon pixel detectors. [...]
ATL-INDET-PUB-2018-001. - 2018.
Original Communication (restricted to ATLAS) - Full text

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