Author

Sort by: Order: Results:

  • Relating centrality to impact parameter in nucleus-nucleus collisions 
    DAS, SRUTHY JYOTHI; Giacalone, Giuliano; Monard, Pierre-Amaury; Ollitrault, Jean-Yves (American Physical Society, 2018-01)
    In ultrarelativistic heavy-ion experiments, one estimates the centrality of a collision by using a single observable, say n, typically given by the transverse energy or the number of tracks observed in a dedicated detector. ...
  • Effects of initial-state dynamics on collective flow within a coupled transport and viscous hydrodynamic approach 
    Chattopadhyay, Chandrodoy; BHALERAO, RAJEEV S.; Ollitrault, Jean-Yves; Pal, Subrata (American Physical Society, 2018-03)
    We evaluate the effects of preequilibrium dynamics on observables in ultrarelativistic heavy-ion collisions. We simulate the initial nonequilibrium phase within a multiphase transport (AMPT) model, while the subsequent ...
  • Kurtosis of elliptic flow fluctuations 
    BHALERAO, RAJEEV S.; Giacalone, Giuliano; Ollitrault, Jean-Yves (American Physical Society, 2019-01)
    Elliptic flow ( v 2 ) in ultrarelativistic nucleus-nucleus collisions fluctuates event to event, both in magnitude and in orientation with respect to the reaction plane. Even though the reaction plane is not known event ...
  • Primordial non-Gaussianity in heavy-ion collisions 
    BHALERAO, RAJEEV S.; Giacalone, Giuliano; Ollitrault, Jean-Yves (American Physical Society, 2019-07)
    We show that experimental data on cumulants of anisotropic flow in heavy-ion collisions probe the non-Gaussian statistics of the energy-density field created right after the collision. We carry out a perturbative expansion ...
  • Bayesian approach to long-range correlations and multiplicity fluctuations in nucleus-nucleus collisions 
    Yousefnia, Kianusch Vahid; Kotibhaskar, Atharva; BHALERAO, RAJEEV; Ollitrault, Jean-Yves (arXivLabs, 2021-08)
    The number of particles detected in a nucleus-nucleus collision strongly depends on the impact parameter of the collision. Therefore, multiplicity fluctuations, as well as rapidity correlations of multiplicities, are ...
  • Impact parameter dependence of anisotropic flow: Bayesian reconstruction in ultracentral nucleus-nucleus collisions 
    Alqahtani, Mubarak; BHALERAO, RAJEEV S.; Giacalone, Giuliano; Kirchner, Andreas; Ollitrault, Jean-Yves (American Physical Society, 2024-12)
    Peculiar phenomena have been observed in analyses of anisotropic flow (𝑣𝑛) fluctuations in ultracentral nucleus-nucleus collisions: The fourth-order cumulant of the elliptic flow (𝑣2) distribution changes sign. In ...