Quark Matter 2025

Session

Parallel session 29

9 Apr 2025, 08:40

Goethe University Frankfurt, Campus Westend, Theodor-W.-Adorno-Platz 1, 60629 Frankfurt am Main, Germany

Conveners

Parallel session 29: Light and strange flavor physics & nuclei II

• Marcus Bleicher

738. Strangeness production and polarization in fixed-target and proton-lead collisions at LHCb

Giulia Manca (Universita` degli studi di Cagliari and INFN, Cagliari, IT)

09/04/2025, 08:40

Light and strange flavor physics & nuclei

Oral

With its precise vertex reconstruction and particle identification capabilities, the LHCb detector is ideally suited to study the production and polarization of strange particles. In addition, being the origin of hyperon polarization from unpolarized proton-proton and proton-nucleus collisions not yet fully understood, measurements in different collision systems and kinematic ranges must be...

1119. Exploring the hadronic phase with momentum and azimuthal distribution of short-lived resonances and understanding the internal structure of exotic resonances

Junlee Kim (CERN)

09/04/2025, 09:00

Light and strange flavor physics & nuclei

Oral

Hadronic resonances are crucial probes to understand the various phases of matter created during relativistic heavy-ion collisions. Due to their short lifetimes, the yields of these resonances can be affected by competing rescattering and regeneration mechanisms in the final hadronic phase. Rescattering can alter the momentum of the resonance decay products, limiting their reconstruction...

1132. New Hypernuclei Measurements from STAR

yingjie zhou

09/04/2025, 09:20

Light and strange flavor physics & nuclei

Oral

Hypernuclei are bound states of hyperons (Y) and nucleons (N). Measurements on their yields can help us investigate their production mechanisms. In particular, the ${}^5_{\Lambda}$He and $^{4}_{\Lambda}$H(e) are bounded substantially tighter compared to the $^{3}_{\Lambda}$H. The large radius of the $^{3}_{\Lambda}$H leads to suppression in coalescence models, but not in the thermal model...

806. Strangeness production in different collision systems and at different collision energies with the STAR experiment

Weiguang Yuan (Tsinghua University)

09/04/2025, 09:40

Light and strange flavor physics & nuclei

Oral

Strangeness production has been suggested as a sensitive probe to the early dynamics of the deconfined matter created in heavy-ion collisions.
There are significant discussions in the field about the initial conditions, including the colliding energy and the size of the system, needed to generate a quark-gluon plasma (QGP). It is expected that the threshold can be revealed by the measurements...

1118. Production, flow, and properties of hypernuclei in heavy-ions with ALICE

Janik Ditzel (Goethe University Frankfurt (DE))

09/04/2025, 10:00

Light and strange flavor physics & nuclei

Oral

Hypernuclei are bound states of nucleons and hyperons. The measurement of the production of hypernuclei with mass number A=3 and 4 in heavy-ion collisions is a powerful tool to investigate the hyper-nucleosynthesis mechanism. In the coalescence model, the production yields are sensitive to the interplay between the spatial extension of the nucleus wavefunction and the baryon-emitting source...

121. Deciphering (anti)hypertriton spin from its global polarization in heavy-ion collisions

Dr KaiJia Sun (Institute of Modern Physics, Fudan University, Shanghai, China)

09/04/2025, 10:20

Light and strange flavor physics & nuclei

Oral

Understanding the properties of hypernuclei is crucial for constraining the nature of hyperon-nucleon ($Y\text{-}N$) interactions, which plays a key role in determining the inner structure of compact stars. The lightest (anti-)hypernuclei are the hypertriton ($^3_\Lambda\text{H}$), which consists of a pair of nucleons and a $\Lambda$ hyperon, and its anti-nucleus...