Quark Matter 2017

Strange Hadrons Spectra and Directed Flow in STAR Fixed target Experiment

Not scheduled

2h 30m

Hyatt Regency Chicago

Board: C02

Poster Poster Session

Speaker

Dr David Tlusty (Rice University)

Description

Some QGP signatures, such as number-of-constituent-quark scaling of $v_2$, can be seen to persist down to $\sqrt{s_{NN}}$ = 7.7 GeV, while others, such as suppression $R_{CP}$, show a turn-off behavior at low beam energies. Fixed target collisions in STAR allow the center-of-mass energy to go as low as 4.5 GeV. This would provide an opportunity to measure such signatures down to an energy range that can serve as a clean "control" energy in which only a pure hadron gas is expected. In this poster we will present directed flow of strange hadrons $K_S^0$ and $\mathrm{\Lambda }$ and their comparison with
model calculations (RQMD, UrQMD, AMPT, QGSM with parton recombination, and a hydrodynamics model with a tilted source). Furthermore, we will present spectra of
strange hadrons $K_S^0,\mathrm{\Lambda }$, and $\mathrm{\Xi }$.