Strangeness in Quark Matter 2017

Session

Parallel BES

5

13 Jul 2017, 10:50

Room: Cosmos (Victor J. Koningsberger building)

Conveners

Parallel BES: 1

• Alexandre Suaide (IFUSP)

Parallel BES: 2

• Marco Van Leeuwen (Nikhef National institute for subatomic physics (NL))

Description

Parallel session BES

43. Kaon femtoscopy in Au+Au collisions from the Beam Energy Scan at the STAR experiment

Jindřich Lidrych (Czech Technical University in Prague)

13/07/2017, 10:50

QCD phase diagram (BES)

oral presentation

Quantum Chromodynamics calculations predict that under sufficiently high temperature or energy density nuclear matter undergoes a phase transition from hadrons to a state of deconfined quarks and gluons, the Quark-Gluon Plasma. The properties of this novel state of matter have been extensively studied in high-energy nuclear collisions at RHIC.

Two-particle correlations at small relative...

17. Beam energy and system dependence of rapidity-even dipolar flow

Mr Niseem Abdelrahman"Magdy" (Stony Brook University)

13/07/2017, 11:10

QCD phase diagram (BES)

oral presentation

Anisotropic flow ($v_n$) measurements can provide important constraints for initial state models and for precision extraction of the temperature dependence of the specific shear viscosity $\eta/s$. Recent STAR measurements for rapidity even dipolar flow $v^{even}_1$ confirm the important influence of momentum conservation, as well as the characteristic dependencies on $\sqrt{s_{NN}}$ ,...

62. Dynamical critical fluctuations near the QCD critical point

Dr Lijia Jiang (Frankfurt Institute for Advanced Studies)

13/07/2017, 11:30

QCD phase diagram (BES)

oral presentation

The recent BES data of the energy dependent $κσ^2$ for net protons in Au+Au collisions presented large deviations from the statistical baselines at lower collision energies, and non-monotonic behavior at around 20 GeV, which indicates possible signals for the existence of the QCD critical point [1].

In our recent paper [2], we introduce a freeze-out scheme to the dynamical models near the...

129. Fluctuating fluid dynamics for the QGP in the LHC and BES era

Marcus Bluhm (University of Wroclaw)

13/07/2017, 11:50

QCD phase diagram (BES)

oral presentation

Fluid dynamical fluctuations drive a system constantly out of equilibrium in connection with dissipative properties such as shear and bulk viscosity. The interaction of the fluctuations leads to a renormalization in the equation of state and in the transport coefficients. These effects are particularly important near phase transitions and in small systems. In an era of the high-precision...

146. Identify QCD transition in heavy-ion collisions with Deep Learning

Dr Kai Zhou (FIAS, Goethe-University Frankfurt am Main)

13/07/2017, 12:10

QCD phase diagram (BES)

oral presentation

Supervised learning with a deep convolutional neural network is used to identify the QCD equation of state (EoS) employed in relativistic hydrodynamic simulations of heavy-ion collisions. The final-state particle spectra \rho(p_T,\Phi) provide directly accessible information from experiments. High-level correlations of \rho(p_T,\Phi) learned by the neural network act as an "EoS-meter",...

133. News on pion spectra in the NA61/SHINE collaboration.

Michal Naskret (University of Wroclaw (PL))

14/07/2017, 14:15

QCD phase diagram (BES)

oral presentation

The main physics goal of the NA61/SHINE ion program is the study of the properties of the onset of deconfinement and the search for signatures of the critical point of strongly interacting matter. These goals are pursued by performing an energy and system size scan.

In this talk recent analysis results of Ar+Sc and Be+Be interactions at SPS energies are discussed. Rapidity and transverse mass...

40. $\phi$-Meson Spin Alignment and the Azimuthal Angle Dependence of $\Lambda$ ($\bar{\Lambda}$) Polarization in Au+Au collisions at RHIC

Biao Tu (Central China Normal University)

14/07/2017, 14:35

QCD phase diagram (BES)

oral presentation

Relativistic heavy-ion collisions produce a state of matter with surprising fluid properties. The study of the vorticity allows us to access a fundamental property of this matter. The STAR experiment at RHIC has observed for the first time a significant alignment between the angular momentum of the medium produced in non-central collision and the spin of $\Lambda$($\overline{\Lambda}$)...

95. Measurements of spin alignment of vector mesons and global polarization of hyperons with ALICE at the LHC

Bedangadas Mohanty (National Institute of Science Education and Research (IN))

14/07/2017, 14:55

QCD phase diagram (BES)

oral presentation

Spin alignment of vector mesons (e.g. K$^{\star}$$^{0}$) and global polarization of hyperons (e.g. $\Lambda$) in non-central high energy heavy-ion collisions could occur due to large initial angular momentum of the system. The spin alignment could also occur during the process of hadronization. The spin alignment of K$^{\star}$$^{0}$ is measured using a parameter $\rho_{00}$ characterising...

114. Estimation of the isothermal compressibility from event-by-event multiplicity fluctuation studies

Maitreyee Mukherjee (Department of Atomic Energy (IN))

14/07/2017, 15:15

Freeze-out, hadronisation and statistical models

oral presentation

Fluctuations of various observables in heavy-ion collisions at ultra-relativistic energies have been extensively studied in literature as they provide important signals regarding the formation of the Quark Gluon Plasma. In addition to being sensitive to the QCD phase transitign, the multiplicity fluctuations affect other event-by-event measurements. In this work, the centrality-dependence and...