4-8 July 2016
Kramer Law building
Africa/Johannesburg timezone
<a href="http://events.saip.org.za/internalPage.py?pageId=10&confId=86">The Proceedings of SAIP2016</a> published on 24 December 2017

How Cool is the Gluon Plasma?

6 Jul 2016, 09:40
20m
2A (Kramer Law building)

2A

Kramer Law building

UCT Middle Campus Cape Town
Oral Presentation Track G - Theoretical and Computational Physics Theoretical and Computational Physics (1)

Speaker

Mr Dino Giovannoni (Rhodes University)

Please indicate whether<br>this abstract may be<br>published online<br>(Yes / No)

Yes

Would you like to <br> submit a short paper <br> for the Conference <br> Proceedings (Yes / No)?

Yes

Apply to be<br> considered for a student <br> &nbsp; award (Yes / No)?

Yes

Abstract content <br> &nbsp; (Max 300 words)<br><a href="http://events.saip.org.za/getFile.py/access?resId=0&materialId=0&confId=34" target="_blank">Formatting &<br>Special chars</a>

It has been established that the initial stages of a heavy-ion collision is characterized by an overoccupied gluon density. Furthermore, it has been postulated by Blaizot et. al. that the early stages of the evolution may exhibit approximate conservation of the gluon number density. This necessitates the introduction of a non-zero gluon chemical potential hence establishing the possible dynamical formation of a gluonic Bose-Einstein condensate (BEC). Following this argument, we make an assumption that the plasma may reach a transient, quasi-equilibrium state in which the system reaches thermal equilibrium, with gluon number being conserved. We investigate the thermodynamic properties of this quasi-equilibrium, overoccupied gluon plasma within a quasiparticle framework in which QCD interaction effects are encapsulated in an effective gluon thermal mass. The results indicate that a gluon plasma may be quite cool, possibly being `supercooled' to temperatures as low as about 20% of the usual confinement temperature Tc. It was also possible to deduce a gluonic phase diagram in which phase boundaries between a gluon plasma, gluon BEC and glueballs are proposed.

Level for award<br>&nbsp;(Hons, MSc, <br> &nbsp; PhD, N/A)?

PhD

Main supervisor (name and email)<br>and his / her institution

Prof. Andre Peshier
University of Cape Town
Andre.Peshier@uct.ac.za

Primary author

Mr Dino Giovannoni (Rhodes University)

Co-author

Prof. Andre Peshier (University of Capw Town)

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