ALICE ALICE - A Large Ion Collider E xperiment

The idea of ALICE   | Our ALICE grup  | Current tasks  | Important events

The idea of ALICE Experiment

ALICE-detector ALICE will be one of the world largest physics experiments. The first measurements are planned for the year 2005 and will be performed at CERN, - European Laboratory for Particle Physics, with the participation of hundreds of physicists form different world laboratories. The colliding beams of Large Hadron Collider will give the CMS energy of 5400 GeV per nucleon.
The main goal of this experiment is to search for the phase transition from hadronic to quark-gluon plasma state of matter. This transition is possible only for the extremal values of nuclear matter temperatures and densities. It corresponds also to the first instants of the creation of Universe in the frame of the Big Bang hypothesis.
The signatures of the phase transitions can be observed in the characteristics of particles emitted in the results of heavy-ion collisions. The number of particles emitted in one collision is of the order of tens of thousands. Identification and measurement of energies of all the particles is an extremely difficult task and the challenge not only for physicists but also for the modern electronics, informatics, mechanics etc. In the ALICE experiment the size of data stored in 1 second will exceed 1 GB.

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ALICE group form Faculty of Physics, Warsaw University of Technology

Since September 1998 - the group from Faculty of Physics, Warsaw University of Technology is a member of the ALICE Collaboration. 
The Group Structure
This scheme I have presented during the Collaboration Board meeting 26 November 1998.
Warsaw ALICE group
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The current tasks 

  1. "Space-time development- Momentum correlations" - The group is participating in the preparation of Physics Performance Report, point 6.3 on close velocity correlations including the HBT correlations, Final  state interactions etc. I am a convener of the corresponding working group in the frame of ALICE.
  2. Data-Base of the Inner Tracking System - Wiktor Peryt is responsible for the preparation of the database for the ITS detector.  A team from Warsaw together with the members of other laboratories are cooperating in this work. The most intensive collaboration is now with the laboratories from Strasbourg and from Nantes.
  3. Construction of the Silicon Strip Detector - is related to our participation in the STAR experiment and the close cooperation with the Nantes and Strasbourg groups. 
Uplex_li.gif - 0,43 K IMPOTRANT EVENTS

ALICE nad Heavy ion Physics

in Warsaw

11-15 October 2000

 In October 2000 at the Faculty of Physics Warsaw University of Technology five days were a real time of ALICE experiment in Warsaw. 15 persons - coordinators of different research programs in the frame of ALICE have presented in Warsaw the current status of developments of different scientific and technical topics. 24 reports, and the seminar at the Physics Faculty by three speakers - professors: Guy Paic, Barbara Erazmus and Jean-Pierre Coffin, were arranged. During the round table discussion at the end of the meeting the main directions of future cooperation were drawn. The meeting with the Dean of the Faculty of Physics Prof. F. Krok and with the Vce Deans: professors: R. Bacewicz and J. Garbarczyk were very fruitful to establish the role of the participation of our group at ALICE in the research activity of the Faculty. A meeting with the Vce Rector of Warsaw University of Technology Prof. M. Mojski stressed the role of fundamental research in the activity of our School and the role of technology development in the realization of the ALICE experiment. There were a lot of discussions on the various problems of heavy ion physics, ALICE experiment and the organization of our cooperation.

The meeting was finished by the excursion to Cracow - ancient capital of Poland, and to the salt mine of Wieliczka.

The organizers are very grateful to all the participant for their presentations, their discussions with our small local heavy ion community, for their openness to the cooperation with our students and PhD students which enter this extremely interesting but also very difficult domain of physics. Special thanks to Federico Carminati, Roberto Barbera and Andreas Morsch for the tutorial of AliRoot and for the explanation of the ALICE software infrastructure. The importance of the meeting was shown by the presence and the organization of the concluding discussion by the deputy spokesman of ALICE Paolo Gubellino.

Thanks Paolo, thanks to all participants. We expect that this meeting was the first but not the only meeting in Warsaw and we will see our friends from the ALICE experiment again and soon in at our new Faculty of Physics in Warsaw.