EPJ Web of Conferences
Volume 58, 2013TM 2012 – The Time Machine Factory [unspeakable, speakable] on Time Travel in Turin
|Number of page(s)||8|
|Section||The Spacetime Machine: Traveling from Micro to Macro Events|
|Published online||05 September 2013|
The ALICE time machine
Università di Torino e INFN, sezione di Torino, Via Giuria 1, Torino, Italy
Published online: 5 September 2013
According to the Big Bang theory, the Universe was once in an extremely hot and dense state which expanded rapidly. In such a state the normal nuclear matter could not exist: it is believed that a few microsecond after big-bang the matter underwent a phase transition, from a state called Quark-Gluon Plasma (QGP) to a hadron gas. Some of the unexplained features of the Universe could be explained by the QGP properties. One of the aims of the CERN LHC is to recreate (on a smaller scale) a QGP state, compressing and heating ordinary nuclear matter by means of ultrarelativistic heavy-ion collisions. The ALICE experiment at CERN is dedicated to the study of the medium produced in these collisions : in particular, the study of the heavy quarkonia suppression pattern can give a measure of the temperature reached in these collisions, helping us to understand how close we are getting to the conditions of the starting point of the Universe.
© Owned by the authors, published by EDP Sciences, 2013
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 2.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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