“…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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“…For the first time, these data are used in a standard model effective field theory analysis at next-to-leading order, where parton distributions and the QCD parameters are extracted simultaneously with imposed constraints on the Wilson coefficient $c_1$ of 4-quark contact interactions.…”
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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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“…--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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“…This talk will discuss searches where the target is the production of a heavy scalar (H) or pseudoscalar (A) Higgs-like particle, through its decay to a top-antitop quark pair (ttbar). Several Beyond Standard Model (BSM) theories predict the existence of new, heavy particles with the addition of a second Higgs doublet to the Standard Model. …”
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“…The corresponding EFT interpretations for Higgs-gluon and Higgs-top quark interactions are possibly provided.…”
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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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“…The Drell-Yan process is a hard process where a quark-antiquark annihilation originates a virtual photon that decays in the final state to a pair of oppositely charged leptons. …”
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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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“…Furthermore, the Higgs boson coupling to the top quark and its effective coupling to the gluon are degenerate in the inclusive on-shell measurements while the off-shell events can break the degeneracy. …”
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“…This note demonstrates the application of this technique to an analysis involving a search for new physics in the top quark sector within the framework of effective field theory.…”
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“…The main focus of the ALICE experiment, quark--gluon plasma measurements, requires accurate particle identification (PID). …”
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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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“…Using this dataset, this thesis presents a measurement of the internal structure of jets arising from the production of the most massive of the Standard Model particles, the top quark, in $t\bar{t}$ pairs, in the case that these jets are produced with high momentum. …”
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“…We analyse a wide variety of quark-dominated processes and observables, and show how the power contributions are specified in lowest order by the behaviour of one-loop Feynman diagrams containing a gluon of small virtual mass. …”
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“…We then confront this prediction with classical and quantum vacuum stability constraints arising from the Higgs-slepton potential, and indicate the preferred values of the top quark mass and messenger scale(s). The possibility of vacuum instability in a different direction yields an upper bound on the messenger mass scale complementary to the familiar bound from gravitino relic abundance. …”
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“…We consider the supersymmetric version of a string-type SU(4)xSU(2)_LxSU(2)_R theory with U(1)_X family symmetry, which was shown to successfully describe the charged fermion masses and the quark mixing, and extend the earlier fermion mass analysis to the neutrino sector. …”
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“…Speaker: 1985-1989 Ð University of Nijmegen and CERN - Ph.D. on B0-B0bar mixing, Eurojet, top quark cross-sections, test of the O(as3) QCD matrix element, calculations for future hadron colliders, UA1. 1989-1994 Ð University of Glasgow and CERN - ALEPH - Jet charge studies, measurement of the Weinberg Angle. 1994-1996 Ð Master of Business Administration with technology focus, TSM International Business School, Enschede, Netherlands. 1996-now Ð Product Manager Cardiac MRI, Philips Medical Systems, Best, Netherlands.…”
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“…Its main goal is the study of the behaviour of matter at high energy densities to search for the transition from the hadronic to the quark-gluon-plasma phase. The ALICE detector is mainly made by a central part, (including the Inner Tracking System, the Time-Projection-Chamber, and a large area particle identification array), which is devoted to the detection of hadronic signals, and a forward part with the muon spectrometer, forward multiplicity detectors and zero-degree calorimeter. …”
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“…It is designed to cover the full richness of hadronic and leptonic signals expected at the LHC allowing to establish and to study the phase transition from hadronic matter to deconfined partonic matter, the quark gluon plasma (QGP). <P>The CMS experiment is optimised for the study of hard processes in high luminosity pp collisions at the LHC. …”
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