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Online Strangeness in Quark Matter Conference 2021

17–22 May 2021
US/Eastern timezone

Session

Open and New (Electromagnetic)

Parallel 1c
18 May 2021, 09:30
Room C (Zoom)

Room C

Zoom

zoom co-host: Zhongling Ji https://stonybrook.zoom.us/j/99045792821

Conveners

Open and New (Electromagnetic): Parallel 1

  • Gabor David (Brookhaven National Laboratory)

Presentation materials

There are no materials yet.

  1. 50. Low-mass dielectron measurements with ALICE at the LHC
    Raphaelle Bailhache (Goethe University Frankfurt (DE))
    18/05/2021, 09:30
    Strangeness production in nuclear collisions and hadronic interactions
    Experimental talk

    Dileptons and photons are unique tools to study the space–time evolution of the hot and dense matter created in ultra-relativistic heavy-ion collisions. They are produced continuously by a variety of processes, in particular prompt and thermal photons and semi-leptonic heavy-flavour hadron decays, during the entire history of the collision and traverse the medium...

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  2. 187. Low-$p_{\rm{T}}$ $\mu^{+}\mu^{−}$ pair production in Au+Au collisions at $\sqrt{s_{\rm{NN}}}$ = 200 GeV at STAR
    Jian Zhou (USTC)
    18/05/2021, 09:50
    Experimental talk

    Recently, significant enhancements of $e^{+}e^{−}$ pairs at very low transverse momentum ($p_{\rm{T}}$) were observed by the STAR collaboration in peripheral Au+Au collisions. The excess can be explained by photon-photon interactions induced by the extremely strong electromagnetic field produced by the fast moving heavy ions. While such photon-photon interactions were traditionally studied in...

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  3. 14. Quarks and Antiquarks interacting in Electrodynamical Interactions
    Cheuk-Yin Wong
    18/05/2021, 10:10
    Open questions and new developments
    Theory talk

    Quarks and antiquarks carry electric charges and can interact in
    quantum electrodynamcal (QED) interactions. There appear no laws that
    forbid quarks and antiquarks to interact in QED interactions alone.
    Permitted on the basis of Gell-Mann's Totalitarian Principle that what
    is not forbidden is allowed and motivated by observations of low-mass
    anomalous particles in [1,2,3], we study the...

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  4. 6. In-medium effects in strangeness production in heavy-ion collisions at (sub-)threshold energies
    Taesoo Song (GSI)
    18/05/2021, 10:30
    Strangeness production in nuclear collisions and hadronic interactions
    Theory talk

    We study the in-medium effects in strangeness production
    in heavy-ion collisions at (sub-)-threshold energies of 1 - 2 A GeV based on
    the microscopic Parton-Hadron-String Dynamics (PHSD) transport approach.
    The in-medium modifications of the antikaon $(\bar K = K^-, \bar K^0)$ properties
    are described via the self-consistent coupled-channel unitarized scheme
    based on a SU(3) chiral...

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  5. 10. $K_1/K^*$ enhancement as a signature of chiral symmetry restoration in heavy ion collisions
    Haesom Sung (Yonsei University)
    18/05/2021, 10:50

    Based on the fact that the mass difference between the chiral partners is an
    order parameter of chiral phase transition and that the chiral order parameter
    reduces substantially at the chemical freeze-out point in ultra-relativistic
    heavy ion collisions, we argue that the production ratio of $K_1$ over $K^*$ in
    such collisions should be substantially larger than that predicted in...

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