28 June 2015 to 3 July 2015
Africa/Johannesburg timezone
SAIP2015 Proceeding published on 17 July 2016

Prodding QGP in N=4 SYM with Stringy Yo-yos

30 Jun 2015, 15:00
20m
Oral Presentation Track G - Theoretical and Computational Physics TCP

Speaker

Mr Robert Moerman (University of Cape Town)

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

No

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

Yes

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

Hons

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>

In the last decade, significant strides have been taken by the high-energy physics community towards understanding the early evolution of the universe – namely the recent experimental production of quark-gluon-plasma (QGP), the deconfined state of QCD matter, which is hypothesized to have existed about a microsecond after the big bang. The properties of this partonic soup are not well understood because QGP is in the strongly coupled regime of QCD. However, using the framework of the anti-de-Sitter/conformal field theory (AdS/CFT) conjecture we are able to probe QGP in N=4 Super Yang Mills (SYM) at strong coupling through classical gravity calculations at weak coupling. In particular, we consider the thermalization of a “massless” quark which is dual to a string falling in a five-dimensional AdS-Schwarzchild background. Our modified “yo-yo” solution is constructed by fixing an end-point of a string (which is initially straight, fully-extended and later collapses to a single point) to a D0-brane situated at the horizon of the black hole in our five-dimensional geometry. This calculation is performed in the hope that it provides insight into the deviation of the computed jet nuclear modification factor at high transverse momenta (which has be previously calculated using AdS/CFT) from recent Large Hadron Collider (LHC) data.

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

Yes

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

W. A. Horowitz
wa.horowitz@uct.ac.za
University of Cape Town

Primary author

Mr Robert Moerman (University of Cape Town)

Co-author

Dr William Horowitz (University of Cape Town)

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