ATLAS

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2018-12-13
14:21
OpenAccess [PUBDB-2018-05452] Report

Prospects for differential cross-section measurements of Higgs boson production measured in decays to ZZ and $\gamma\gamma$ with the ATLAS experiment at the High-Luminosity LHC
[ATLAS-PHYS-PUB-2018-040]
10 pp. () [10.3204/PUBDB-2018-05452]  GO
Prospects for Higgs boson differential cross section measurements for the full expected High-Luminosity LHC (HL-LHC) luminosity of 3 ab$^{−1}$ are performed using the$H → γγ, H → Z Z^v∗ → 4 \ell$ decay channels, as well as their combination. Differential cross section measurements are presented for the Higgs boson transverse momentum, Higgs boson rapidity, number of jets produced together with the Higgs boson, and the transverse momentum of the leading jet..
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2018-12-13
14:14
OpenAccess [PUBDB-2018-05451] Report

Measurements of Higgs boson properties in the diphoton decay channel using 80 fb$^{-1}$ of $pp$ collision data at $\sqrt s$ = 13 TeV with the ATLAS detector
[ATLAS-CONF-2018-028]
 GO
This note reports measurements of Higgs boson properties in the two-photon final state using 79.8 fb$^{-1}$ of data recorded at $\sqrt{s}=13$ TeV by the ATLAS experiment at the Large Hadron Collider. The cross sections of Higgs boson production through gluon--gluon fusion, vector-boson fusion, and in association with a vector boson or a top-quark pair are measured. [...]
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2018-12-13
12:47
OpenAccess [PUBDB-2018-05447] Report/Journal Article
; ; ; et al
Measurements of Higgs boson properties in the diphoton decay channel with 36 fb$^{-1}$ of $pp$ collision data at $\sqrt{s} = 13$ TeV with the ATLAS detector
[arXiv:1802.04146; CERN-EP-2017-288]
Properties of the Higgs boson are measured in the two-photon final state using 36 fb$^{-1}$ of proton--protoncollision data recorded at $\sqrt{s} = 13$ TeV by the ATLAS experiment at the Large Hadron Collider. Cross-section measurements for the production of a Higgs boson through gluon--gluon fusion, vector-boson fusion, and in association with a vector bosonor a top-quark pair are reported. [...]
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2018-12-12
10:53
OpenAccess [PUBDB-2018-05417] Report/Journal Article
; ; ; et al
Searches for heavy $ZZ$ and $ZW$ resonances in the $\ell\ell qq$ and $\nu\nu qq$ final states in $pp$ collisions at $\sqrt{s}=13$ TeV with the ATLAS detector
[CERN-EP-2017-146; arXiv:1708.09638]
This paper reports searches for heavy resonances decaying into ZZ or ZW using data from proton-proton collisions at a centre-of-mass energy of $ \sqrt{s}=13 $ TeV. The data, corresponding to an integrated luminosity of 36.1 fb$^{−1}$, were recorded with the ATLAS detector in 2015 and 2016 at the Large Hadron Collider. [...]
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2018-12-11
13:09
OpenAccess [PUBDB-2018-05404] Report/Journal Article
; ; ; et al
Combination of the searches for pair-produced vector-like partners of the third-generation quarks at $\sqrt{s} =$ 13 TeV with the ATLAS detector
[arXiv:1808.02343; CERN-EP-2018-205]
A combination of the searches for pair-produced vectorlike partners of the top and bottom quarks in various decay channels $(T→Zt/Wb/Ht, B→Zb/Wt/Hb)$ is performed using 36.1 fb$^{-1}$ of pp collision data at $\sqrt{s} =$ 13 TeV with the ATLAS detector at the Large Hadron Collider. The observed data are found to be in good agreement with the standard model background prediction in all individual searches. [...]
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2018-12-11
13:06
OpenAccess [PUBDB-2018-05403] Report/Journal Article
; ; ; et al
Measurement of the azimuthal anisotropy of charged particles produced in $\sqrt{s_\mathrm{NN}} = 5.02$ TeV Pb+Pb collisions with the ATLAS detector
[arXiv:1808.03951; CERN-EP-2018-194]
Measurements of the azimuthal anisotropy in lead-lead collisions at $\sqrt{s_\mathrm{NN}} = 5.02$ TeV are presented using a data sample corresponding to 0.49 $\mathrm{nb}^{-1}$ integrated luminosity collected by the ATLAS experiment at the LHC in 2015. The recorded minimum-bias sample is enhanced by triggers for 'ultra-central' collisions, providing an opportunity to perform detailed study of flow harmonics in the regime where the initial state is dominated by fluctuations. [...]
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2018-12-11
12:59
OpenAccess [PUBDB-2018-05401] Report/Journal Article
; ; ; et al
Comparison between simulated and observed LHC beam backgrounds in the ATLAS experiment at ${E_{\textrm {beam}}}$ = 4 TeV
[arXiv:1810.04450; CERN-EP-2018-240]
Results of dedicated Monte Carlo simulations of beam-induced background (BIB) in the ATLAS experiment at the Large Hadron Collider (LHC) are presented and compared with data recorded in 2012. During normal physics operation this background arises mainly from scattering of the 4 TeV protons on residual gas in the beam pipe. [...]
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ddc:610
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2018-12-11
10:51
OpenAccess [PUBDB-2018-05390] Report/Journal Article
; ; ; et al
Impact of low-$x$ resummation on QCD analysis of HERA data
[arXiv:1802.00064]
Fits to the final combined HERA deep-inelastic scattering cross-section data within the conventional DGLAP framework of QCD have shown some tension at low x and low $Q^2$ . A resolution of this tension incorporating $\ln (1/x)$ -resummation terms into the HERAPDF fits is investigated using the xFitter program. [...]
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2018-12-11
10:36
[PUBDB-2018-05389] Journal Article

Measurement of the photon identification efficiencies with the ATLAS detector using LHCRun 2 data collected in 2015 and 2016
European journal of physics 1, 55 ()  GO
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2018-12-07
13:51
OpenAccess [PUBDB-2018-05299] Report/Conference Presentation

Measurements of the Higgs boson production, fiducial and differential cross sections in the $4\ell$ decay channel at $\sqrt{s}=13$TeV with the ATLAS detector
[ATLAS-CONF-2018-018]
Sixth Annual Conference on Large Hadron Collider Physics, LHCP2018, BolognaBologna, Italy, 4 Jun 2018 - 9 Jun 20182018-06-042018-06-09  GO
Inclusive, differential and production mode cross sections of the Higgs boson production in proton-proton collisions are measured in the $H \to ZZ^{*} \to 4\ell$ decay channel. The proton$-$proton collision data were produced at the Large Hadron Collider at a centre-of-mass energy of 13 TeV and recorded by the ATLAS detector from 2015 to 2017, corresponding to an integrated luminosity of 79.8 fb$^{-1}$. [...]
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