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Showing 1 to 20 of 21 for “"Heavy Quarks"”.
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Heavy quarks in effective field theories
Heavy quark physics serves as a probe to understand QCD, measure standard model parameters, and look for signs of new physics. We study several aspects of heavy quark systems in an effective field theory framework, including both phenomenological and formal applications. Phenomenological …
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Quantum Chromodynamics and the Precision Phenomenology of Heavy Quarks
… theory of observable quantities involving quarks and gluons, the strongly interacting particles of the SM. Such calculations form the most important class of corrections to observables and are vital if we are to untangle signals of New Physics from LHC data. We consider in particular the …
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Electroweak measurements using heavy quarks identified in e⁺⁻ annihilation
Thesis (Ph. D.)--Massachusetts Institute of Technology, Dept. of Physics, 1998.
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Probing the Quark-Gluon Plasma properties through Heavy Quarks' dynamics: transport coefficients and elliptic flow
… principale degli esperimenti al Relativistic Heavy-Ion Collider (RHIC) e al Large Hadron Collider (LHC) dove si effettuano collisioni di ioni pesanti (HICs) ad energie ultrarelativisitche per creare il QGP a potenziale barionico nullo e con una temperatura iniziale di circa T = 3Tc. In questo …
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Heavy quarks in the initial stages of proton-ion collisions [I quark pesanti negli stati iniziali delle collisioni protone-ione]
Le collisioni tra ioni pesanti, come Pb o Au, costituiscono uno strumento fondamentale per lo studio della teoria delle interazioni forti, ovvero la Cromodinamica Quantistica (QCD). In particolare, tali esperimenti permettono di ottenere informazioni su tutte le complesse fasi della materia …
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Search for and studies of Quark-Gluon Plasma via dynamics and productions of heavy quarks in proton-proton and heavy ion collisions at the LHC with CMS detector
Heavy flavor quarks are sensitive to both the initial stage conditions and the subsequent in-medium evolution of nuclear collisions, and thus can provide insights to the inner workings of Quark-Gluon Plasma (QGP) in large ion collisions and the origin of the collectivity in small systems. In this …
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Centrality Effects on Heavy-Flavor Quark Production and Invariant Yield in PHENIX Proton–Gold Collisions at Center-of-Mass Energy 200 GeV, and Assembly, Testing, Calibration, and Installation of the sPHENIX Hadronic Calorimeters
<p>Hadrons created in heavy-ion collisions interact with the open color-charge of the quark-gluon plasma through their constituent quarks. The medium imparts substantial modifications to heavy-flavor hadrons' momentum spectra. For collisions of small systems, the centrality of those collisions …
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Heavy quark physics on the lattice with improved nonrelativistic actions
Hadrons containing heavy quarks, in particular b quarks, play an important role in high energy physics. Measurements of their electroweak interactions are used to test the Standard Model and search for new physics. For the comparison of experimental results with theoretical predictions, …
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The interactions of hadrons containing a heavy quark in the strong coupling limit of lattice QCD
… are pinned in place on the lattice by infinitely heavy quarks. The potentials are calculated to leading order in the strong coupling and hopping parameter expansions for the following six systems: meson/meson, baryon/antimeson, baryon/baryon, meson/antimeson, baryon/meson and baryon/antibaryon. …
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Aspects of Nonperturbative Heavy Quark Physics
The properties of charm and bottom quarks are an interesting corner of Quantum Chromo-Dynamics (QCD) due to the fact that their masses are much heavier than the typical QCD interaction energy ΛQCD. Due to this scale separation, it is possible to describe these heavy quarks by Effective Field …
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The application of automated perturbation theory to lattice QCD
Predictions of heavy quark parameters are an integral component of precision tests of the Standard Model of particle physics. Experimental measurements of electroweak processes involving heavy hadrons provide stringent tests of Cabibbo-Kobayashi-Maskawa (CKM) matrix unitarity and serve as a probe …
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Collinear singularities and the factorization scale in perturbative QCD
… production in association with bottom quarks. As a testing ground for Higgs searches, we propose a measurement of Z-boson production in association with heavy quarks, using an inclusive heavy-quark tagging technique. Next, we present a calculation of the next-to-leading-order QCD …
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The study of the production of heavy flavour muons as a function of charged-particle multiplicity in proton-proton collisions at 8TeV with ALICE at the LHC
… and optimized to study ultra relativistic heavy-ion collisions in which a hot, dense and strongly interacting Quantum Chromodynamics (QCD) medium called the Quark Gluon Plasma (QGP) is created. ALICE also studies proton-proton collisions both to test for pertubative QCD (pQCD) theories and …
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Quarkonium Suppression in pPb Collisions at CMS and Timing Detectors for Future Collider Experiment
… precise measurements are required. The study of heavy-ion collisions at the Large Hadron Collider has firmly established the existence of the quark–gluon plasma (QGP), yet recent experimental results suggest that QGP-like phenomena may also emerge in smaller systems such as pp and pPb collisions. …
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A Charcuterie Platter of QCD Matter
… complicated three-dimensional dynamics of how quarks and gluons, the fundamental degrees of freedom of QCD, combine to form the observed bound states in nature called hadrons? I initiate a new formalism using Heavy Quark Effective Theory to study this dynamical process known as hadronization. I …
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Probes of strongly interacting plasma
… in the strongly coupled plasma produced in heavy-ion collisions. Such processes involve physics at multiple energy scales making a consistent theoretical description challenging. We show how insights from various regimes can be combined to extend our understanding of the underlying physics. …
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Heavy quark interaction in Hot QCD matter: open charm and bottom production in relativistic Heavy-Ion Collisions
… Model. The basic constituents of QCD are quarks and gluons that are confined in hadronic matter: at high temperatures and/or densities quark deconfinement occurs and hadronic matter undergoes a phase transition into a new state of matter, the Quark-Gluon Plasma (QGP). Numerical solutions …
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