Browsing by Subject "Heavy Ion Phenomenology"

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  • Vuorinen, Aleksi (2016)
    We discuss a number of prominent theoretical challenges in the physics of ultrarelativistic heavy ion collisions, and review some recent attempts to tackle them. These examples cover most stages of the collision process, but emphasis is given to approaches that rely on first principles methods or well-established Effective Field Theory frameworks. The topics discussed in most detail include the early dynamics of a collision as well as the properties of quark gluon plasma in thermal equilibrium.
  • Moore, Guy D.; Schlichting, Sören; Schlusser, Niels; Soudi, Ismail (2021)
    We supply recently obtained results from lattice EQCD with the correct UV limit to construct the collisional broadening kernel C(b(perpendicular to)) in a QCD plasma. We discuss the limiting behavior of C(b(perpendicular to)) at small and large impact parameters b(perpendicular to), and illustrate how the results can be used to compute medium-induced radiation rates.
  • Lappi, T.; Schenke, B.; Schlichting, S.; Venugopalan, R. (2016)
    We examine the origins of azimuthal correlations observed in high energy proton-nucleus collisions by considering the simple example of the scattering of uncorrelated partons off color fields in a large nucleus. We demonstrate how the physics of fluctuating color fields in the color glass condensate (CGC) effective theory generates these azimuthal multiparticle correlations and compute the corresponding Fourier coefficients v(n), within different CGC approximation schemes. We discuss in detail the qualitative and quantitative differences between the different schemes. We will show how a recently introduced color field domain model that captures key features of the observed azimuthal correlations can be understood in the CGC effective theory as a model of non-Gaussian correlations in the target nucleus.