Quark Matter 2018

13-19 May 2018
Venice, Italy
Europe/Zurich timezone
The organisers warmly thank all participants for such a lively QM2018! See you in China in 2019!

Study of Thermodynamic and Transport Properties of Strongly Interacting Matter in a Color String Percolation Approach at RHIC energies

15 May 2018, 17:00
2h 40m
First floor and third floor (Palazzo del Casinò)

First floor and third floor

Palazzo del Casinò

Poster QCD at high temperature

Speaker

Swatantra Tiwari (Indian Institute of Technology Indore, Indore)

Description

The phase transition of a strongly interacting matter from hadron to a quark-gluon plasma state have received considerable interest. In the color string percolation phenomenology the interactions between the strings occur in the initial stage of the collisions. This frame-work naturally predicts the reduction in the charged particle multiplicity and the enhancement of the transverse momentum with respect to the value expected from the number of independent strings. The initial temperature and energy density are obtained from the data via the color reduction factor $F(\xi)$ and the associated string density parameter $\xi$. The shear viscosity to entropy density ratio($\eta/s$), trace anomaly($\Delta$) ,the squared speed of sound ($C_{S}^{2}$), entropy density, bulk viscosity to entropy density ratio($\zeta/s$) are extracted using Color String Percolation Model (CSPM) for STAR data at various RHIC energies from $\sqrt{s_{NN}}$ = 7.7 to 200 GeV. Results are in agreement with the lattice QCD calculations for (2+1) flavour. The initial temperatures obtained by CSPM are compared with various hadronization and chemical freeze-out temperatures. This analysis shows that the deconfinement to confinement transition possibly takes place between $\sqrt{s_{NN}}$ = 11.5 and 19.6 GeV.

Centralised submission by Collaboration Presenter name already specified Theory

Primary authors

Pragati Sahoo (Indian Institute of Technology Indore (IN)) Raghunath Sahoo (Indian Institute of Technology Indore (IN)) Swatantra Tiwari (Indian Institute of Technology Indore, Indore) Sudipan De (Indian Institute of Technology Indore (IITI)) Brijesh Kumar Srivastava (Purdue University (US)) Prof. Rolf Scharenberg (Purdue University, USA)

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