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ATLAS PUB Notes

Ultimi arrivi:
2017-12-15
09:57
Impact of Alternative Inputs and Grooming Methods on Large-R Jet Reconstruction in ATLAS
During Run 1 of the LHC, the optimal reconstruction algorithm for large-$R$ jets in ATLAS, characterized in terms of the ability to discriminate signal from background and robust reconstruction in the presence of pileup, was found to be anti-$k_{t}$ jets with a radius parameter of 1.0, formed from locally calibrated topological calorimeter cell clusters and groomed with the trimming algorithm to remove contributions from pileup and underlying event. [...]
ATL-PHYS-PUB-2017-020.
- 2017.
Original Communication (restricted to ATLAS) - Full text

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2017-12-15
09:49
Search for direct pair production of higgsinos by the reinterpretation of the disappearing track analysis with 36.1 fb$^{-1}$ of $\sqrt{s}=13$ TeV data collected with the ATLAS experiment
This note presents a search for direct production of higgsinos in which a chargino is nearly mass-degenerate with a stable neutralino. [...]
ATL-PHYS-PUB-2017-019.
- 2017. - 10 p.
Original Communication (restricted to ATLAS) - Full text

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2017-12-05
10:50
Trigger-object Level Analysis with the ATLAS detector at the Large Hadron Collider: summary and perspectives
This document summarizes the motivations, challenges and perspectives on the Trigger-object Level Analysis (TLA) in ATLAS, focusing on the case where the objects are hadronic jets. [...]
ATL-DAQ-PUB-2017-003.
- 2017. - 9 p.
Original Communication (restricted to ATLAS) - Full text

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2017-11-16
20:49
Constraints on an effective Lagrangian from the combined $H\to ZZ^*\to 4\ell$ and $H\to\gamma\gamma$ channels using 36.1 fb$^{-1}$ of $\sqrt{s}=$ 13 TeV $pp$ collision data collected with the ATLAS detector
Six parameters of an effective field theory are constrained using the combined $H\to\gamma\gamma$ and $H\to ZZ^*\to 4\ell$ channels, based on 36.1 fb$^{-1}$ of proton-proton collision data collected by the ATLAS experiment at the LHC at $\sqrt{s}=$ 13 TeV. [...]
ATL-PHYS-PUB-2017-018.
- 2017. - 10 p.
Original Communication (restricted to ATLAS) - Full text

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2017-11-09
22:03
Analytical description of missing transverse-momentum trigger rates in ATLAS with 7 and 8 TeV data
The missing transverse-momentum (MET) trigger of the ATLAS experiment is based on the measurement of the energy deposited over the full calorimeter acceptance. [...]
ATL-DAQ-PUB-2017-002.
- 2017.
Original Communication (restricted to ATLAS) - Full text

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2017-11-06
16:24
Radiation induced effects in the \\ATLAS Insertable B-Layer readout chip
The ATLAS Insertable B-Layer is the innermost pixel barrel layer of the ATLAS detector installed in 2014. [...]
ATL-INDET-PUB-2017-001.
- 2017. - 22 p.
Original Communication (restricted to ATLAS) - Full text

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2017-10-02
18:11
Beam backgrounds in the ATLAS detector during LHC loss map tests at beta*=40cm and beta*=80cm at Ebeam=6.5 TeV
In this note the beam-background measurements with the ATLAS detector during lossmap tests of the LHC are described. [...]
ATL-DAPR-PUB-2017-001.
- 2017. - 36 p.
Original Communication (restricted to ATLAS) - Full text

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2017-07-24
15:46
Quark versus Gluon Jet Tagging Using Jet Images with the ATLAS Detector
Distinguishing quark-initiated from gluon-initiated jets is useful for many measurements and searches at the LHC. [...]
ATL-PHYS-PUB-2017-017.
- 2017.
Original Communication (restricted to ATLAS) - Full text

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2017-07-24
15:42
Modelling of Track Reconstruction Inside Jets with the 2016 ATLAS $\sqrt{s}= 13$ TeV pp dataset
Inside the core of high transverse momentum jets, the particle density is so high that the tracks of charged particles begin to overlap, and due to the different charged particles, pixel clusters in the ATLAS inner detector begin to merge. [...]
ATL-PHYS-PUB-2017-016.
- 2017.
Original Communication (restricted to ATLAS) - Full text

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2017-07-24
15:27
Improving jet substructure performance in ATLAS using Track-CaloClusters
Jet substructure techniques play a critical role in ATLAS in searches for new physics, are increasingly important in measurements of the Standard Model, and are being utilized in the trigger. [...]
ATL-PHYS-PUB-2017-015.
- 2017.
Original Communication (restricted to ATLAS) - Full text

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