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Showing 1 to 20 of 105 for “"Quark-Gluon Plasma"”.
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Tracking the quark-gluon plasma
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1997.
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Strangeness production in a quark-gluon plasma
… two possible explanations. One is that strange quarks, being relatively light, are easily produced, creating an abundance of strange particles in the experiment. On the other hand, hadron gas models use only thermodynamics, strangeness neutrality and baryon number conservation to predict the …
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Towards the quark gluon plasma via MHV techniques
We study the multiple radiative gluon emission off a massless and highly energetic quark in the pQCD picture. We introduce the Maximally Helicity Violating (MHV) techniques to cope with the complexities in computing cross sections in multi-jet QCD. The multiphoton emission in QED is reviewed to …
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Properties of quark gluon plasma at weak and strong coupling
… properties of probe particle traveling through quark gluon plasma as created in heavy ion collisions are investigated. In the first part, probability distribution P(k1 ) is calculated for an energetic parton that propagates for a distance L through a weakly coupled medium without radiating to …
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Short path length pQCD corrections to energy loss in the quark gluon plasma
Recent surprising discoveries of collective behaviour of low-pT particles in pA collisions at LHC hint at the creation of a hot, uid-like QGP medium. The seemingly conflicting measurements of non-zero particle correlations and RpA that appears to be consistent with unity demand a more careful …
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Towards a spacetime description of hard parton evolution in the quark gluon plasma
… use an initial condition of off-shell pairs of quarks placed back-to-back in the QGP, but a precise and theoretically motivated description of configuration does not exist. Quark virtuality can have noticeable effects on the rate of energy loss so a first principles calculation is needed for the …
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Analysis of Beauty Quark Hadronization in Vacuum and Quark-Gluon Plasma with CMS
… These results will help elucidate the beauty quark hadronization mechanisms in vacuum and quark-gluon plasma at the LHC energy. Significant B-meson signals have also been observed at low very 𝑝ₜ and high event multiplicity in 𝑝𝑝 collisions, which will allow us to study beauty quark …
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HADRONIZATION VIA QUARK COALESCENCE OF THE QUARK GLUON PLASMA AT ULTRARELATIVISTIC HEAVY-ION COLLISIONS
… of strongly interacting particles and has quarks and gluons as elementary constituents, they represent the fundamental degrees of freedom of the theory carrying the "color" charge. The QCD have two peculiar features: colour confinement and asymptotic freedom. The asymptotic freedom allow us …
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Probing the Quark-Gluon Plasma properties through Heavy Quarks' dynamics: transport coefficients and elliptic flow
… Standard descrive l'interazione forte fra quark e gluoni. La QCD possiede due proprietà principali: il confinamento e la libertà asintotica. A causa del confinamento quark e gluoni nella materia ordinaria non possono esistere isolati, ma formano stati legati privi di colore noti come …
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Jet quenching in Quark Gluon Plasma: flavor tomography at RHIC and LHC by the CUJET model
… and applied to the phenomenological study of the Quark Gluon Plasma produced in Heavy Ion Collisions.
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Finite size corrections to the equation of state for nuclear matter near the phase transition hadron gas to quark gluon plasma
… of the hadron gas near the phase transition to quark gluon plasma. Existing thermodynamic models introducing a .correction due to the finite size of the particles are reviewed and discussed. A new model to describe dense nuclear matter is developed. The model takes into account the different …
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Search for the production of quark-gluon plasma in e+e- collisions at [square root of] s = 91.2 GeV with Archived ALEPH LEP1 data
Measurements of two-particle angular correlations for charged particles emitted in e+ e- collisions at a center-of-mass energy of 91 GeV are presented. The archived data are collected with the ALEPH detector at LEP. The correlation functions are measured over a broad range of pseudorapidity and …
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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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Suppression of High Transverse Momentum Charged Hadrons in Au+Au Collisions at 200 GeV Nucleon-Nucleon Center of Mass Energy
<p>The dynamical properties of quark gluon plasma are studied in heavy ion collisions. Gold ions are accelerated with the Relativistic Heavy Ion Collider (RHIC) at Brookhaven National Laboratory and collided at energies up to 200 GeV per nucleon. Collision products and their properties are detected …
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IMPACT OF THE PRE-EQUILIBRIUM STAGE OF ULTRA-RELATIVISTIC HEAVY ION COLLISIONS: ISOTROPIZATION, PHOTON PRODUCTION AND ELLIPTIC FLOWS
… accepted theory that governs the dynamics of quarks and gluons, within the Standard Model of fundamental interactions, is the Quantum Chromodynamics (QCD). Its non-abelian nature provides two important features: while at high energies the interaction becomes small and quarks and gluons …
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Dynamics of pions in ultrarelativistic heavy ion collisions
… region can begin either as a pion fluid or as a quark-gluon plasma, depending on the initial energy density. A pion fluid is also formed when the expanding plasma hadronizes. In this thesis, we study the dynamics of pions in the post-hadronization central region to develop probes of quark-gluon …
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Robustness and infrared sensitivity of various observables in the application of AdS/CFT to heavy ion physics
… of five properties of strongly coupled plasmas that have been calculated in K = 4 supersymmetric Yang-Mills (SYM) theory at nonzero temperature, motivated by the goal of understanding phenomena in relativistic heavy ion collisions. (The five properties are the jet quenching parameter, …
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QCD Equilibrium and Dynamical Properties from Holographic Black Holes
… Quantum Chromodynamics (QCD) is whether a dense quark-gluon system exhibits critical phenomena when breaking the balance between quarks and antiquarks. Lattice QCD studies suggest that a critical point can only emerge in the baryon-dense domain, which is challenging to describe through ab initio …
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