中国物理学会高能物理分会第十一届全国会员代表大会暨学术年会

Different from normal nuclei, hypernuclei are bound states of nucleons and hyperons, which contains strange quarks. The hyperon-nucleon (Y-N) interaction, an important ingredient for the nuclear equation-of-state (EoS), remains poorly constrained. Precise measurements of hypernucei intrinsic properties, and production yields in heavy-ion collisions are crucial to the investigation of their...

Heavy ion collisions provide a unique opportunity to study the nature of X(3872) compared with electron-positron and proton-proton (antiproton) collisions. We investigate the centrality and momentum dependence of X(3872) in heavy-ion collisions via the Langevin equation and instant coalescence model (LICM). When X(3872) is treated as a compact tetraquark state, the tetraquarks are...

We study the hot-medium effects on charmonium. Previously most work were focused on the medium effects on the gluon propagator of the charmonium, but ignored that on the $c$ quark and $\bar{c}$ anti-quark. However, the hot medium interacts with not only gluons but also quarks. Here we study the hot-medium effects on both $c,\bar{c}$ and the transferred gluon based on two-particle fractal...

Quarkonium production is a direct probe of deconfinement in heavy-ion collisions. For J/$\psi$, a bound state of ${c}\bar{c}$ quarks, the (re-)generation is found to be the dominant production mechanism at low transverse momentum ($p_{\rm T}$) and in central collisions at the LHC energies. In addition, the non-prompt component of J/$\psi$ production from b-hadron decays allows one to access...

Charm quark serves as an important hard probe for studying the properties of the Quark Gluon Plasma (QGP). Measurements of $J/\psi$ anisotropy flow is a powerful tool to understand the interaction between charm quark and the QGP. With the high-statistics 200 GeV Ru+Ru and Zr+Zr collision data collected by the STAR experiment, $J/\psi$ anisotropy flow are measured as a function of $p_{T}$ and...

The upcoming sPHENIX experiment is the next generation of large acceptance detector at RHIC whose scientific goals center on probing the strongly interacting Quark-Gluon Plasma (QGP) with jets, heavy flavor tagged jets, and Upsilon production. Upsilon is produced by hard scattering in the early times of a relativistic heavy-ion collision, thus experiencing the entire evolution of the QGP. It...

Strangeness production has been suggested as a sensitive probe to the early-time dynamics of the nuclear matter created in heavy-ion collisions. Transverse momentum distributions and yields of strange hadrons provide important information about the particle production mechanisms and help us to understand the properties of the created medium and its evolution in these collisions. RHIC Beam...