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Online Strangeness in Quark Matter Conference 2021

17–22 May 2021
US/Eastern timezone

Session

Bulk (Fluctuation)

Parallel 2a
18 May 2021, 11:10
Room A (Zoom)

Room A

Zoom

zoom co-host: Niveditha Ramasubramanian https://stonybrook.zoom.us/j/99346269726

Conveners

Bulk (Fluctuation): Parallel 2

  • Maria Paola Lombardo (INFN)

Presentation materials

There are no materials yet.

  1. 154. Net-particle number fluctuations in a hydrodynamic description of heavy-ion collisions at RHIC and LHC
    Dr Volodymyr Vovchenko (Lawrence Berkeley National Laboratory)
    18/05/2021, 11:10
    Theory talk

    We generalize the Cooper-Frye particlization routine to make it suitable for describing event-by-event fluctuations in heavy-ion collisions. This is achieved via a newly developed subensemble method, allowing to incorporate the effects of exact global conservation of multiple charges, thermal smearing, and resonance decays on fluctuations of various particle numbers. Utilizing viscous...

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  2. 218. Higher-Order Cumulants of Net-Proton Multiplicity Distributions from RHIC-STAR
    Mr Yu Zhang (Central China Normal University)
    18/05/2021, 11:30
    Experimental talk

    In the study of QCD phase structure and search of the QCD phase boundary and critical point, higher-order cumulants of conserved quantities are proposed as promising observables and have been studied extensively both experimentally and theoretically. For $4^{th}$-order cumulants it is predicted that there will be a non-monotonic energy dependence trend. For $5^{th}$- and $6^{th}$-order...

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  3. 96. Conserved charge fluctuations at vanishing net-baryon density from Lattice QCD
    Jishnu Goswami (Bielefeld University)
    18/05/2021, 11:50
    Theory talk

    Cumulants of net charge fluctuations and their correlations at vanishing
    values of the conserved charge chemical potentials ($\mu_{B,Q,S}=0$)
    provide the basis for Taylor expansions of various thermodynamic observables
    at non-zero values of the chemical potentials. At $\mu_{B,Q,S}=0$ continuum
    extrapolated results for these cumulants can directly be compared
    with charge fluctuations...

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  4. 206. Coupled baryon, electric charge and strangeness fluctuations in heavy-ion collisions
    Grégoire PIHAN (CNRS)
    18/05/2021, 12:10
    Theory talk

    Fluctuation observables in heavy-ion collisions probe the constituents, the chemical freeze-out and the transport properties of strongly interacting matter, and signal phase transitions. We present results for second order fluctuations of the conserved charges in QCD from a stochastic diffusion model in a Bjorken-type expansion background. The impact of the cross couplings between the three...

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  5. 66. Off-of-equilibrium effects on Kurtosis Along Strangeness-Neutral Trajectories
    Travis Dore (University of Illinois at Urbana-Champaign)
    18/05/2021, 12:30

    The Beam Energy Scan program at RHIC (Relativistic Heavy Ion Collider)
    is searching for the QCD critical point or a first order phase transition. The main signal for the
    critical point is the kurtosis of the distribution of proton yields obtained on an event by
    event basis where one expects a peak at the critical point. However, its exact behavior is
    still an open question due to...

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