Online Strangeness in Quark Matter Conference 2021

Session

Strangeness (Freeze-out)

Parallel 2b

18 May 2021, 11:10

Room B (Zoom)

Conveners

Strangeness (Freeze-out): Parallel 2

• Grazyna Odyniec (Lawrence Berkeley National Lab. (US))

161. Elliptic flow for 𝝋-mesons measured by PHENIX

Mr Iurii Mitrankov (Peter the Great St.Petersburg Polytechnic University (SPbPU))

18/05/2021, 11:10

Strangeness production in nuclear collisions and hadronic interactions

Experimental talk

The systematic study of hadronic elliptic flow in various relativistic heavy ion collisions is important for the investigation of the initial geometry influence on the quark gluon plasma characteristics. The 𝝋-meson consists of strange and antistrange quarks and has a small interaction cross section with non-strange hadrons. Therefore, 𝝋-mesons are barely affected by late hadronic stage and...

60. Thermal-model-based characterization of heavy-ion-collision systems at chemical freeze-out

Jamie Stafford (University of Houston)

18/05/2021, 11:30

Theory talk

We investigate the chemical freeze-out in heavy-ion collisions (HICs) and the impact of the hadronic spectrum on thermal model analyses [1, 2]. Detailed knowledge of the hadronic spectrum is still an open question, which has phenomenological consequences on the study of HICs. By varying the number of resonances included in Hadron Resonance Gas (HRG) Model calculations, we can shed light on...

100. Early Strangeness freeze-out from RHIC BES to LHC

Jia Chen

18/05/2021, 11:50

Theory talk

In this talk, we investigate the kinetic freeze-out properties in relativistic heavy ion collisions at different collision energies. We present a study of standard Boltzmann-Gibbs Blast-Wave (BGBW) fits and Tsallis Blast-Wave (TBW) fits performed on the transverse momentum spectra of identified hadrons produced in Au + Au collisions at collision energies of $\sqrt{s_{\rm{NN}}}=$ 7.7 - 200~GeV...

124. Thermal model description of the particle spectra in the few-GeV energy regime.

Szymon Harabasz

18/05/2021, 12:10

It has been demonstrated that Statistical Hadronization Model fits perfectly to particle yields at freeze-out in heavy-ion and hadron collisions at LHC, RHIC and SPS, where quark-gluon plasma is created. It is however entirely not clear if particles emitted in the few-GeV energy regime can be understood as emerging from thermalized hadronic medium. A recent work [1] suggests that this might be...

190. Light and strange hadron production and anisotropic flow measurement in Au + Au collisions at $\sqrt{s_{\rm{NN}}}$ = 3 GeV from STAR

Guannan Xie (Lawrence Berkeley National Laboratory)

18/05/2021, 12:30

Strangeness production in nuclear collisions and hadronic interactions

Experimental talk

Particle production and anisotropic flow measurements have been used to investigate the properties of the QCD matter produced in heavy ion collisions.The RHIC Beam Energy Scan program covers a wide range of energies, including the transition from a partonic dominated area to hadronic dominated area. Of particular interest is the high baryon density region which is accessible through production...