A. Hadef
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View article: Measurement of the nuclear modification factor for muons from charm and bottom hadrons in Pb+Pb collisions at 5.02 TeV with the ATLAS detector
Measurement of the nuclear modification factor for muons from charm and bottom hadrons in Pb+Pb collisions at 5.02 TeV with the ATLAS detector Open
View article: Search for new phenomena in three- or four-lepton events in $pp$ collisions at $\sqrt s$ =13 TeV with the ATLAS detector
Search for new phenomena in three- or four-lepton events in $pp$ collisions at $\sqrt s$ =13 TeV with the ATLAS detector Open
A search with minimal model dependence for physics beyond the Standard Model in events featuring three or four charged leptons (3ℓ and 4ℓ, ℓ=e,μ) is presented. The analysis aims to be sensitive to a wide range of potential new-physics theo…
View article: Measurement of the $t\bar{t}t\bar{t}$ production cross section in $pp$ collisions at $\sqrt{s}$=13 TeV with the ATLAS detector
Measurement of the $t\bar{t}t\bar{t}$ production cross section in $pp$ collisions at $\sqrt{s}$=13 TeV with the ATLAS detector Open
A measurement of four-top-quark production using proton-proton collision data at a centre-of-mass energy of 13 TeV collected by the ATLAS detector at the Large Hadron Collider corresponding to an integrated luminosity of 139 fb$^{-1}$ is p…
View article: Search for heavy particles in the $b$-tagged dijet mass distribution with additional $b$-tagged jets in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS experiment
Search for heavy particles in the $b$-tagged dijet mass distribution with additional $b$-tagged jets in proton-proton collisions at $\sqrt{s} = 13$ TeV with the ATLAS experiment Open
A search optimized for new heavy particles decaying to two $b$-quarks and produced in association with additional $b$-quarks is reported. The sensitivity is improved by $b$-tagging at least one lower-$p_\text{T}$ jet in addition to the two…
View article: Measurement of the $c$-jet mistagging efficiency in $t\bar{t}$ events using $pp$ collision data at $\sqrt{s}=13$ TeV collected with the ATLAS detector
Measurement of the $c$-jet mistagging efficiency in $t\bar{t}$ events using $pp$ collision data at $\sqrt{s}=13$ TeV collected with the ATLAS detector Open
A technique is presented to measure the efficiency with which $c$-jets are mistagged as b-jets (mistagging efficiency) using $t\bar{t}$ events, where one of the $W$ bosons decays into an electron or muon and a neutrino and the other decays…
View article: <i>ttH</i> Coupling Measurement with the ATLAS Detector at the LHC
<i>ttH</i> Coupling Measurement with the ATLAS Detector at the LHC Open
The Higgs boson was discovered on the 4th of July 2012 with a mass around 125 GeV by ATLAS and CMS experiments at LHC. Determining the Higgs properties (production and decay modes, couplings,...) is an important part of the high-energy phy…
View article: Search for Higgs boson production in association with a top quark pair in two same-sign lepton final states with the ATLAS detector at LHC
Search for Higgs boson production in association with a top quark pair in two same-sign lepton final states with the ATLAS detector at LHC Open
The Large Hadron Collider (LHC) at CERN restarted in spring 2015 for three years (Run2) at an unexplored center-of-mass energy of 13 TeV; An ideal place to search for physics beyond the Standard Model such as supersymmetry (SUSY) and extra…
View article: Recherche de la production du boson de Higgs en association avec une paire de quarks top dans les canaux avec deux leptons de même charge à partir du détecteur ATLAS au LHC
Recherche de la production du boson de Higgs en association avec une paire de quarks top dans les canaux avec deux leptons de même charge à partir du détecteur ATLAS au LHC Open
The Large Hadron Collider (LHC) at CERN restarted in spring 2015 for three years (Run2) at an unexplored center-of-mass energy of 13 TeV; An ideal place to search for physics beyond the Standard Model such as supersymmetry (SUSY) and extra…
View article: Technical Design Report for the ATLAS Inner Tracker Pixel Detector
Technical Design Report for the ATLAS Inner Tracker Pixel Detector Open
This is the second of two Technical Design Report documents that describe the upgrade of the central tracking system for the ATLAS experiment for the operation at the High Luminosity LHC (HL-LHC) starting in the middle of 2026. At that tim…
View article: Technical Design Report for the Phase-II Upgrade of the ATLAS TDAQ System
Technical Design Report for the Phase-II Upgrade of the ATLAS TDAQ System Open
This Technical Design Report documents the plans to upgrade the ATLAS Trigger and Data Acquisition system for the High Luminosity LHC (HL-LHC). The HL-LHC is expected to start operations in the middle of 2026, to ultimately reach a peak in…