Quark Matter 2017

Session

Parallel Session 4.2: CME, Vorticity and Spin Polarization (II)

7 Feb 2017, 16:30

Regency B

Conveners

Parallel Session 4.2: CME, Vorticity and Spin Polarization (II)

• Alexander Sorin (Joint Institute for Nuclear Research (RU))

444. Towards measurements of Chiral Magnetic (Vortical) Effect Using Identified Particles from STAR

Liwen Wen

07/02/2017, 16:30

Correlations and Fluctuations

Oral

The chiral magnetic effect (CME) and the chiral vortical effect (CVE)
have been under intensive theoretical and experimental investigations in
recent years [1]. A three-point correlator, γ [2], has been used to measure electric/baryonic charge separations across the reaction plane as the
experimental manifestation of the CME/CVE. Considerable background
sources arising from charge/momentum...

372. Global polarization of Lambda hyperons in Au+Au Collisions at RHIC BES

Isaac Upsal (Ohio State University)

07/02/2017, 16:50

Collective Dynamics

Oral

Non-central heavy-ion collisions have large ($\sim 10^{5} \hbar$) angular momentum which may be transferred, in part, to the quark-gluon plasma through shear forces that generate a vortical substructure in the hydrodynamic flow field. The vortical nature of the system is expected to polarize emitted hadrons along the direction of system angular momentum. $\Lambda$ and $\overline{\Lambda}$...

441. Vorticity in the QGP liquid and Lambda polarization at the RHIC Beam Energy Scan

Iurii Karpenko (Frankfurt Institute for Advanced Studies)

07/02/2017, 17:10

Collective Dynamics

Oral

The Quark Gluon Plasma formed in relativistic heavy ion collisions at finite impact parameter has a finite angular momentum perpendicular to the reaction plane and some fraction thereof may be converted into global polarization of final state hadrons along the angular momentum direction. The polarization can be calculated assuming that the spin degrees of freedom are at local thermodynamical...

140. Charge redistribution from novel magneto-vorticity coupling in anomalous hydrodynamics

Koichi Hattori (Fudan University)

07/02/2017, 17:30

New Theoretical Developments

Oral

Both strong magnetic field and sizable vorticity are present in the hot QCD matter created in non-central heavy-ion collisions. We report new phenomena that the interplay between the magnetic field and fluid vorticity induces the redistribution of the vector charge density and generates an axial current [1]. We show the role of the chiral anomaly underlying in these effects which, however,...

689. Lambda polarization and spin correlations in a vortical fluid

Dr Long-Gang Pang (Frankfurt Institute for Advanced Studies, Goethe University)

07/02/2017, 17:50

Correlations and Fluctuations

Oral

We computed the fermion spin distribution and correlations in vortical fluid employing event-by-event (3+1)D viscous hydrodynamics. Due to spin-vorticity coupling, the spin polarization density is proportional to the local fluid vorticity at the next-to-leading order of a gradient expansion in a quantum kinetic theory. As a result of strong collective flow, the spatial distribution of local...

431. Chiral vortical and magnetic effects in anomalous hydrodynamics

Mr Xingyu Guo (Tsinghua University)

07/02/2017, 18:10

New Theoretical Developments

Oral

We employed a 3+1D anomalous hydro with initial condition generated by HIJING to calculate Chiral Vortical Effect and Chiral Magnetic Effect. This allowed us to compare these two effects at different collision energy and centrality. We calculated the charge dependent two-particle correlations with respect to the reaction plane, which is used to compare with current results and also can provide...