“…The path-length dependent parton energy loss within the quark-gluon plasma created in lead-lead collisions at $\sqrt{\smash[b]{s_{_{\mathrm{NN}}}}} = 5.02~\text{TeV}$ is studied by determining the azimuthal anisotropies for high-$p_{\mathrm{T}}$ dijets. …”
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“…--HTML--><p class="MsoPlainText"><span><span>Studies of heavy ion collisions shed light on dense QCD systems and non-perturbative effects such as gluon saturation in nuclei, deconfinement and hadronization mechanism in medium. …”
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“…Presented measurements of muon pairs produced via two-photon scattering processes in hadronic Pb+Pb collisions provide a novel test of strong-field QED and can be a potentially sensitive electromagnetic probe of the quark-gluon plasma. These include the dependence of the cross-section and angular correlation on the mean pT of the dimuon pair, the rapidity separation between the muons, and the angle that the pair makes with the second-order event-plane. …”
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“…We consider the production of the Higgs boson (at the LHC) through the fusion of gluons (ggF) which has the largest production rate, while triggering events from the ggF H→γγd is very challenging given the relatively small missing transverse energy and the single photon. …”
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“…Interactions of protons (pp) or of a proton with a lead nucleus (p–Pb) were not expected to form a deconfined hot and dense matter, called the Quark-Gluon Plasma (QGP), which is instead produced in heavy-ion collisions. …”
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“…This note summarises the ongoing efforts related to the development of EFT tools for Higgs boson pair production in gluon fusion, and provides recommendations for the use of distinct EFT parameterisations in the Higgs boson pair production process. …”
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“…--HTML--><p><span>Quarkonia represent a key observable for our understanding of the quark-gluon plasma (QGP) properties, and more generally for the investigation of the QCD color force in a strongly interacting environment. …”
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“…--HTML--><p>Scattering amplitudes are where quantum field theory meets particle experiments, especially at the LHC where the copious scattering of quarks and gluons in QCD produces Higgs bosons and many backgrounds to new physics searches.…”
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“…The corresponding EFT interpretations for Higgs-gluon and Higgs-top quark interactions are possibly provided.…”
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“…The ATLAS experiment has performed searches for FCNC couplings of the top quark with a photon, gluon, Z boson or Higgs boson. In this contribution, the most recent results are presented, which include the complete data set of 139 $fb^{-1}$ at 13 TeV collected at the LHC during run 2 (2015-2018). …”
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“…These non-UPC measurements provide a novel test of strong-field QED and may be a potentially sensitive electromagnetic probe of the quark-gluon plasma. These measurements include the dependence of the cross-section and angular correlation on the mean-$\p_{\mathrm{T}}$ of the dimuon pair, the rapidity separation between the muons, and the pair angle relative to the second-order event-plane, all measured differentially as a function of the Pb+Pb collision centrality. …”
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“…At AMBER the valence, sea, and gluon contributions in the pion will be characterised with unprecedented accuracy, using high-intensity pion beams of both charges impinging in different nuclear targets. …”
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“…--HTML--><p>Jets interact with the quark-gluon Plasma (QGP) formed in heavy-ion collisions, leading to so-called "jet quenching" effects. …”
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“…The results obtained by TOTEM are indeed compatible with predictions of a colourless 3-gluon bound state exchange in the t-channel of proton-proton elastic scattering, as postulated by alternative theoretical models both in the Regge-like framework and in the modern QCD framework. …”
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“…The E2C and E3C distributions show a sharp transition from the falling scaling behavior characterizing the quantum interactions of quarks and gluons to an integer power law reflective of classical noninteracting hadrons. …”
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“…We present the effect of treating the top quark as the recoiler during gluon emission in $t\rightarrow bW$ decay on direct top quark mass measurements. …”
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“…Coherent photoproduced quarkonia can probe the nuclear gluon distributions at low Bjorken-$x$, while the continuum dilepton production could be used to further map the electromagnetic fields produced in heavy-ion collisions and to study possible induced or final state effects in overlapping hadronic interactions. …”
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“…The main focus of the ALICE experiment, quark--gluon plasma measurements, requires accurate particle identification (PID). …”
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“…This research is centered on the goal of accurately selecting events produced from the. interaction of two gluons in a proton-proton collision at the LHC, resulting in a top-antitop pair and a Higgs boson, a process known as ttH. …”
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“…These measurements offer fresh insights into the nature of initial-state fluctuations and the properties of the quark-gluon plasma formed in heavy-ion collisions.…”
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