ATLAS

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2017-08-01
11:01
OpenAccess [PUBDB-2017-08780] Journal Article
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Electron efficiency measurements with the ATLAS detector using 2012 LHC proton–proton collision data
ddc:530
This paper describes the algorithms for the reconstruction and identification of electrons in the central region of the ATLAS detector at the Large Hadron Collider (LHC). These algorithms were used for all ATLAS results with electrons in the final state that are based on the 2012 $pp$ collision data produced by the LHC at $\sqrt{s}$ = 8 $TeV$ . [...]
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2017-07-17
14:53
OpenAccess [PUBDB-2017-07773] Preprint
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Investigations into the impact of locally modified sensor architectures on the detection efficiency of silicon micro-strip sensors
ddc:610
The High Luminosity Upgrade of the LHC will require the replacement of the Inner Detector of ATLAS with the Inner Tracker (ITk) in order to cope with higher radiation levels and higher track densities. Prototype silicon strip detector modules are currently developed and their performance is studied in both particle test beams and X-ray beams [...]
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2017-07-03
13:27
OpenAccess [PUBDB-2017-06655] Report/Journal Article
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The photon PDF from high-mass Drell–Yan data at the LHC
[arXiv:1701.08553; DESY-17-015] ddc:530
Achieving the highest precision for theoretical predictions at the LHC requires the calculation of hard-scattering cross sections that include perturbative QCD corrections up to (N)NNLO and electroweak (EW) corrections up to NLO. Parton distribution functions (PDFs) need to be provided with matching accuracy, which in the case of QED effects involves introducing the photon parton distribution of the proton, $x\gamma (x,Q^2)$ . [...]
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2017-06-19
13:03
[PUBDB-2017-05447] Journal Article
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Thermal and hydrodynamic studies for micro-channel cooling for largearea silicon sensors in high energy physics experiments
ddc:530
Micro-channel cooling initially aiming at small-sized high-power integrated circuits is being transferred to the field of high energy physics. Today's prospects of micro-fabricating silicon opens a door to a more direct cooling of detector modules [...]
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2017-05-30
15:28
OpenAccess [PUBDB-2017-04002] Preprint/Report
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Thermal and hydrodynamic studies for micro-channel cooling for large area silicon sensors in high energy physics experiments
[arXiv:1611.05306; DESY-17-005]
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Micro-channel cooling initially aiming at small-sized high-power integrated circuits is being transferred to the field of high energy physics. Today`s prospects of micro-fabricating silicon opens a door to a more direct cooling of detector modules. [...]
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2017-05-02
11:59
OpenAccess [PUBDB-2017-02137] Conference Presentation
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The International Linear Collider - Background Simulations & the Impact on SiD
LC Vertex Detector Workshop, Meeting locationSchloss Ringberg, Germany, 30 Apr 2017 - 3 May 20172017-04-302017-05-03
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The International Linear Collider is a linear $e^{+}e^−$ accelerator, which is unique due to the clean environment and its capability for high precision measurements. To achieve these goals the backgrounds for linear colliders have to be understood in great detail, and both, the machine and the detectors, have to be optimized towards that goal. [...]
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2017-03-29
15:50
OpenAccess [PUBDB-2017-01512] Report/Journal Article
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Search for new phenomena in events containing a same-flavour opposite-sign dilepton pair, jets, and large missing transverse momentum in $\sqrt{s}=$ 13 $pp$ collisions with the ATLAS detector
[CERN-EP-2016-260; CERN-PH-2016-260; arXiv:1611.05791] ddc:530
Two searches for new phenomena in final states containing a same-flavour opposite-sign lepton (electron or muon) pair, jets, and large missing transverse momentum are presented. These searches make use of proton–proton collision data, collected during 2015 and 2016 at a centre-of-mass energy $\sqrt{s}=13$   $\text {TeV}$ by the ATLAS detector at the large hadron collider, which correspond to an integrated luminosity of $14.7~\mathrm {fb}^{-1}$ . [...]
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2017-03-29
15:34
OpenAccess [PUBDB-2017-01511] Preprint/Report
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Measurements of electroweak $Wjj$ production and constraints on anomalous gauge couplings with the ATLAS detector
[CERN-EP-2017-008; arXiv:1703.04362]
Measurements of the electroweak production of a $W$ boson in association with two jets at high dijet invariant mass are performed using $\sqrt{s} = 7$ and $8$ TeV proton-proton collision data produced by the Large Hadron Collider, corresponding respectively to 4.7 and 20.2 fb$^{-1}$ of integrated luminosity collected by the ATLAS detector. The measurements are sensitive to the production of a $W$ boson via a triple-gauge-boson vertex and include both the fiducial and differential cross sections of the electroweak process..
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2017-03-29
15:27
OpenAccess [PUBDB-2017-01509] Preprint/Report
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Measurement of the $t\bar{t}$ production cross section in the $\tau$ + jets final state in $pp$ collisions at $\sqrt{s}=8$ TeV using the ATLAS detector
[CERN-EP-2016-288; arXiv:1702.08839]
A measurement of the inclusive $pp\to t\bar{t}+X$ production cross section in the $\tau+{\rm jets}$ final state using only the hadronic decays of the $\tau$ lepton is presented. The measurement is performed using 20.2 fb$^{-1}$ of proton-proton collision data recorded at a center-of-mass energy of $\sqrt{s}=8$ TeV with the ATLAS detector at the Large Hadron Collider. [...]
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2017-03-29
15:21
OpenAccess [PUBDB-2017-01507] Preprint/Report
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Probing the $Wtb$ vertex structure in $t$-channel single-top-quark production and decay in $pp$ collisions at $\sqrt{\mathrm{s}}=8$ TeV with the ATLAS detector
[CERN-EP-2017-011; arXiv:1702.08309]
To probe the $Wtb$ vertex structure, top-quark and $W$-boson polarisation observables are measured from $t$-channel single-top-quark events produced in proton--proton collisions at a centre-of-mass energy of 8 TeV. The dataset corresponds to an integrated luminosity of 20.2 fb$^{-1}$, recorded with the ATLAS detector at the LHC. [...]
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