Browsing UiS Brage by Author "Wiedemann, Urs Achim"

Now showing items 1-7 of 7

    • Analytic structure of nonhydrodynamic modes in kinetic theory 

      Kurkela, Aleksi; Wiedemann, Urs Achim (Peer reviewed; Journal article, 2019-09)
      How physical systems approach hydrodynamic behavior is governed by the decay of nonhydrodynamic modes. Here, we start from a relativistic kinetic theory that encodes relaxation mechanisms governed by different timescales ...

    • Discovering Partonic Rescattering in Light Nucleus Collisions 

      Huss, Alexander; Kurkela, Eero Aleksi; Mazeliauskas, Aleksas; Paatelainen, Risto; van der Schee, Wilke; Wiedemann, Urs Achim (Peer reviewed; Journal article, 2021-05)
      We demonstrate that oxygen-oxygen collisions at the LHC provide unprecedented sensitivity to parton energy loss in a system whose size is comparable to those created in very peripheral heavy-ion collisions. With leading ...

    • Early- and Late-Time Behavior of Attractors in Heavy-Ion Collisions 

      Kurkela, Aleksi; van der Schee, Wilke; Wiedemann, Urs Achim; Wu, Bin (Peer reviewed; Journal article, 2020)
      Whether, how, and to what extent solutions of Bjorken-expanding systems become insensitive to aspects of their initial conditions is of importance for heavy-ion collisions. Here we study 1+1D and phenomenologically relevant ...

    • Flow in AA and pA as an interplay of fluid-like and non-fluid like excitations 

      Kurkela, Aleksi; Wiedemann, Urs Achim; Wu, Bin (Peer reviewed; Journal article, 2019)
      To study the microscopic structure of quark–gluon plasma, data from hadronic collisions must be confronted with models that go beyond fluid dynamics. Here, we study a simple kinetic theory model that encompasses fluid ...

    • Hydrodynamization in systems with detailed transverse profiles 

      Kurkela, Eero Aleksi; Taghavi, Seyed Farid; Wiedemann, Urs Achim; Wu, Bin (Peer reviewed; Journal article, 2020)
      The observation of fluid-like behavior in nucleus-nucleus (AA), proton-nucleus (pA) and high-multiplicity proton-proton (pp) collisions motivates systematic studies of how different measurements approach their fluid-dynamic ...

    • Opacity dependence of elliptic flow in kinetic theory 

      Kurkela, Aleksi; Wiedemann, Urs Achim; Wu, Bin (Peer reviewed; Journal article, 2019-09)
      The observation of large azimuthal anisotropies vn in the particle spectra of proton–proton (pp) and proton–nucleus (pA) collisions challenges fluid dynamic interpretations of vn, as it remains unclear how small collision ...

    • Predicting parton energy loss in small collision systems 

      Huss, Alexander; Kurkela, Aleksi; Mazeliauskas, Aleksas; Paatelainen, Risto; van der Schee, Wilke; Wiedemann, Urs Achim (Peer reviewed; Journal article, 2021)
      Medium induced parton energy loss is not conclusively established either in very peripheral heavy-ion collisions or in proton-ion collisions. However, the standard interpretation of azimuthal momentum anisotropies in these ...