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ATLAS PUB Notes

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2018-05-28
10:36
Study of multiple hard-scatter processes from different p p interactions in the same ATLAS event
Given the large integrated luminosity and the large average pileup in the 2017 ATLAS dataset, the probability of having two leptonically decaying Z bosons originating from separate $pp$ interactions in the same LHC bunch crossing becomes non-negligible. [...]
ATL-PHYS-PUB-2018-007. - 2018. - 8 p.
Original Communication (restricted to ATLAS) - Full text

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2018-05-23
14:58
Prospects for the measurement of the rare Higgs boson decay $H\to\mu\mu$ with 3000 fb$^{-1}$ of $pp$ collisions collected at $\sqrt{s} = 14$ TeV by the ATLAS experiment
This note presents a study of the prospects for the measurement of the rare Higgs boson decay $H\to \mu\mu$ using 3000 fb$^{-1}$ of proton-proton collisions at $\sqrt{s}=14$ TeV recorded with the ATLAS detector at the high-luminosity LHC. [...]
ATL-PHYS-PUB-2018-006. - 2018. - 58 p.
Original Communication (restricted to ATLAS) - Full text

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2018-05-10
22:44
Prospects for the $\cal{B}$$(B^0_{(s)} \to \mu^+ \mu^-)$ measurements with the ATLAS detector in the Run 2 and HL-LHC data campaigns
This note estimates the ATLAS detector performance in measuring the branching fractions of the very rare decays $B^0_{s} \to \mu^+ \mu^-$ and $B^0 \to \mu^+ \mu^-$ using data collected during the whole LHC Run 2 campaign and during the whole HL-LHC campaign. [...]
ATL-PHYS-PUB-2018-005. - 2018. - 6 p.
Original Communication (restricted to ATLAS) - Full text

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2018-04-05
09:48
Performance of the ATLAS global transverse-momentum triggers at $\sqrt{s}$ = 8 TeV
The global transverse momentum triggers of the ATLAS experiment at the CERN Large Hadron Collider are designed to select collision events with non-interacting particles passing through the detector and events with a large amount of outgoing momentum transverse to the beam axis. [...]
ATL-DAQ-PUB-2018-001. - 2018.
Original Communication (restricted to ATLAS) - Full text

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2018-03-28
14:39
Impact of parton distribution functions on precision measurements of Drell-Yan observables
This note presents studies of the impact of precision measurements of Drell-Yan observables on the parton distribution functions and their related uncertainties. [...]
ATL-PHYS-PUB-2018-004. - 2018. - 16 p.
Original Communication (restricted to ATLAS) - Full text

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2018-03-20
15:59
Studies of radial distortions of the ATLAS Inner Detector
The measurement of the absolute momentum scale of charged particles provided by the ATLAS inner detector is affected by biases related to geometrical deformations which are not well constrained by the track-based alignment procedure. [...]
ATL-PHYS-PUB-2018-003. - 2018.
Original Communication (restricted to ATLAS) - Full text

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2018-03-16
23:06
Training and validation of the ATLAS pixel clustering neural networks
The high centre-of-mass energy of the LHC gives rise to dense environments, such as the core of high-pT jets, in which the charge clusters left by ionising particles in the silicon sensors of the pixel detector can merge, compromising the tracking and vertexing efficiency. [...]
ATL-PHYS-PUB-2018-002. - 2018. - 30 p.
Original Communication (restricted to ATLAS) - Full text

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2018-02-13
17:53
Investigation of systematic uncertainties on the measurement of the top-quark mass using lepton transverse momenta
This study investigates the impact of systematic uncertainties on a top-quark mass ($m_\text{top}$) measurement in the lepton+jets channel with the ATLAS experiment at the LHC. [...]
ATL-PHYS-PUB-2018-001. - 2018. - 23 p.
Original Communication (restricted to ATLAS) - Full text

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2017-12-29
07:42
ATLAS & Google — "Data Ocean" R&D Project
ATLAS is facing several challenges with respect to their computing requirements for LHC Run-3 (2020-2023) and HL-LHC runs (2025-2034). [...]
ATL-SOFT-PUB-2017-002. - 2017.
Original Communication (restricted to ATLAS) - Full text

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2017-12-22
20:16
Studies on the impact of an extended Inner Detector tracker and a forward muon tagger on $W^{\pm}W^{\pm}$ scattering in $pp$ collisions at the High-Luminosity LHC with the ATLAS experiment
The impact of an extended silicon tracker and a forward muon tagger on the measurement of the \ssWW vector boson scattering process is evaluated in proton-proton collisions at $\sqrt{s}$ = 14 TeV at the High-Luminosity Large Hadron Collider. [...]
ATL-PHYS-PUB-2017-023. - 2017. - 17 p.
Original Communication (restricted to ATLAS) - Full text

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