“…Enabling this “retracking” has significantly increased the efficiency of reconstructing tracks from displaced decays, which has benefited the search for Beyond the Standard Model particles. This poster shows the results of studies which have been done to improve the retracking, and the impact of the inclusion of these tracks in recent ATLAS searches.…”
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“…The primary targets are the Higgs boson decays in vector bosons and tau leptons (H → WW, H → ZZ, H → ττ). This poster will describe the physical object definition, the analysis strategy, the estimation and the modeling of the main backgrounds. …”
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“…Abstract: this poster presents fiducial cross section measurements of electroweak production of two jets in association with a Z boson and a high-energy photon. …”
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“…A tracking algorithm for the reconstruction of the daughters of long-lived particles in LHCb 5 Jun 2018, 16:00 1h 30m Library, Centro San Domenico () LHC experiments Posters session Speaker Katharina Mueller (Universitaet Zuerich (CH)) Description The LHCb experiment at CERN operates a high precision and robust tracking system to reach its physics goals, including precise measurements of CP-violation phenomena in the heavy flavour quark sector and searches for New Physics beyond the Standard Model. …”
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“…In order to address these challenges, several new techniques were developed to significantly improve the potential of the 2017 dataset. This poster presents an overview of how we trigger on hadronic signatures at the ATLAS experiment, outlining the challenges of hadronic object triggering and describing the improvements performed over the course of the Run-2 LHC data-taking program. …”
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“…The ultra-peripheral Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV performed at the ATLAS experiment are used to study a rare light-by-light scattering process, $\gamma\gamma\rightarrow\gamma\gamma$, allowed in Quantum Electrodynamics via a loop diagram. The poster summarises recent light-by-light measurements conducted using a combination of 2015 and 2018 datasets recorded by the ATLAS experiment, corresponding to an integrated luminosity of 2.2 n$b^{-1}$. …”
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“…In particular, the $v_2$-[$p_T$] correlations are predicted to be different between collisions of spherical $^{208}$Pb and collisions of deformed $^{129}$Xe. This poster presents new measurement of $v_n$-[$p_T$] correlation in $\sqrt{s_{NN}} = 5.44$ TeV Xe+Xe collisions and compared with Pb+Pb at $\sqrt{s_{NN}} = 5.02$ TeV for harmonics $n = 2,$ 3 and 4. …”
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“…The ultra-peripheral Pb+Pb collisions at $\sqrt{s_{\mathrm{NN}}} = 5.02$ TeV performed at the ATLAS experiment are used to study a rare light-by-light scattering process, $\gamma\gamma\rightarrow\gamma\gamma$, allowed in Quantum Electrodynamics via a loop diagram. The poster summarises recent light-by-light measurements conducted using a combination of 2015 and 2018 datasets recorded by the ATLAS experiment, corresponding to an integrated luminosity of 2.2 n$b^{-1}$. …”
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“…This peer-reviewed proceedings volume presents papers and poster summaries from the 6th International Workshop on Compound-Nuclear Reactions and Related Topics CNR*18, held on September 24-28, 2018, at Lawrence Berkeley National Lab, Berkeley, CA.…”
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“…The next most promising candidate in the quark sector is the decay to a pair of charm quark and antiquark (cc). This poster will focus on the analysis of the associated production of the Higgs boson with a W or Z boson performed by the ATLAS Collaboration using data collected between 2015 and 2018, and will describe the analysis strategy employed to search for the H→cc signal. …”
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“…The ttZ process became accessible only recently owing to the large centre-of-mass energy and luminosity of the Large Hadron Collider. This poster will present measurements of the inclusive and differential ttZ production cross sections at a centre-of-mass energy of 13 TeV with the ATLAS detector. …”
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“…The light emitted from the optical fibre was captured using Silicon Photo-Multipliers (SiPM) coupled at each fibre’s end. In this poster, the first results of a beam loss detector based on the capture of Cherenkov photons generated by charged particles inside multimode silica fibres are presented.…”
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