“…Efficient and accurate electron identification is of critical importance to measuring many physics processes with leptons in the final state, including H->4l, dark vector boson searches, and various SUSY searches. This poster will describe the current status of the Likelihood driven Electron ID, highlighting the recent move from a MC driven ID to a data-driven ID. …”
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“…They constitute the part of ATLAS closest to the interaction point and for this reason they will be exposed – over their lifetime – to a significant amount of radiation: prior to the HL-LHC, the innermost layers will receive a fluence of 10^15 neq/cm2 and their HL–LHC upgrades will have to cope with an order of magnitude higher fluence integrated over their lifetimes. This poster presents the details of a new digitization model that includes radiation damage effects to the 3D Pixel sensors for the ATLAS Detector.…”
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“…In addition, several special runs with reduced luminosity were taken. The poster will present the AFP detectors and the lessons learned from the last year operation and some performance from 2016 and 2017.…”
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“…These studies are already important now to search for potential effects of physics beyond the SM as well as to prepare for the analysis of the full dataset of the HL-LHC. This poster will present the latest results on the Higgs pair production with the ATLAS detector with a focus on the 4b and bbWW* final states.…”
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“…Multiple benchmark scenarios beyond the Standard Model anticipate new high-mass neutral mediators whose clean signatures in the dilepton final state have been a prime target for searches at the Large Hadron Collider. My poster describes the procedure, findings, and implications of the latest search for such signatures leveraging the full Run-2 dataset recorded by the ATLAS detector.…”
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“…In particular, a neutral Z’_{DM} boson mediating DM-SM interactions is a prime target for resonance searches, and its couplings can thereby be constrained within the broad context of mediator-based simplified DM models. In this poster I introduce the Z’_{DM} phenomenology in the dilepton final state and present the latest bounds on the relevant simplified models imposed by searches for high mass dilepton resonances with the ATLAS detector.…”
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“…Measurements of the jet substructure in Pb+Pb collisions provide information about the mechanism of jet quenching in the hot and dense QCD medium created in these collisions, over a wide range of energy scales. This poster presents the ATLAS measurement of the suppression of yields of large-radius jets and its dependence on the jet substructure, characterized by the presence of sub-jets and their angular correlations. …”
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“…Separating charged and neutral pions as well as calibrating the pion energy response is a core component of reconstruction in the ATLAS calorimeter. This poster presents an investigation of deep learning techniques for these tasks, representing the signal in the ATLAS calorimeter layers as pixelated images. …”
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“…These ultra-peripheral collisions (UPCs) can lead to photon-photon interactions. This poster presents a new measurement of exclusive dimuon production, which provide detailed constraints on the nuclear photon flux and its dependence on impact parameter and photon energy. …”
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“…Poster Abstract before submission The tracking performance of the ATLAS detector relies critically on its 4-layer Pixel Detector, that has undergone significant hardware and readout upgrades to meet the challenges imposed by the higher collision energy, pileup and luminosity that are being delivered by the Large Hadron Collider (LHC), with record breaking instantaneous luminosities of 2 x 1034 cm-2 s-1 recently surpassed. …”
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“…Dark matter is one of the remaining puzzles of the Standard Model. This poster presents preliminary results of a search for dark matter candidates in invisible Higgs boson decays with the ATLAS experiment using 139 fb-1 of proton-proton collision data. …”
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“…One way to measure the trilinear Higgs self-coupling is through the observation and measurement of non-resonant Higgs pair production. In this poster the searches for non-resonant Higgs pair production, using proton-proton collision data of LHC Run-2 recorded by the ATLAS detector, will be presented.…”
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“…The upgrades reduced the trigger rate from background processes and increased the efficiency for a variety of physics signals. This poster highlights a number of improvements that the upgraded L1 Trigger provided during the Run 2 program at CMS.…”
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“…In this context, the poster will present design considerations, especially regarding the module segmentation, and results of prototype testing of an EM module for the ZDC.…”
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