By unanimous decision the Steering Committee of the international collaboration HADES (High Acceptance Di-Electron Spectrometer) has approved proposal MEPhI to join the collaboration at the meeting, held in Estoril (Portugal) on October 10, 2015.

It is to be recalled that the HADES spectrometer (https://www-hades.gsi.de) was created in 2000 at GSI (Darmstadt, Germany) by major European collaboration for systematic study of properties of hadrons in hot and dense matter at the accelerator SIS-18. The installation has unique options – great acceptance and high mass resolution.

Its main task is registration of electron-positron pairs produced in nucleus-nucleus collisions. Big penetrating ability of these dileptons, formed at different stages of the nuclear collision, could elucidate underlying properties of matter such as mass source of dilepton, modification of particle properties in nuclear environment, restoration of chiral symmetry, as well as to explore new possible states of matter, such as mixed quark-hadron phase and quark-gluon plasma.

From 2001 HADES project performs experimental program with beams of nuclei, protons and deuterons. It has already collected about seven billion events, which are processed in different centers of the collaboration, including JINR in Dubna.

On September 2, MEPhI was visited by the head of the HADES collaboration Joachim Stroth. The meeting discussed the program of MEPhI scientists for the HADES experiment, which includes a detailed study of the azimuthal flow of hadrons produced in nucleus-nucleus and proton-nucleus collisions. Also, MEPhI scientists plan to make a significant contribution to the creation of the electromagnetic calorimeter of the HADES experiment, together with the group of F.Huber from the Institute for Nuclear Research RAS (Troitsk) and group of A.Kugler from the Nuclear Physics Institute (Řež, Czech Republic).

HADES is an installation of the first phase, which will work in experiments at the new accelerator complex FAIR, which will be built by 2018-19 year. The collaboration has already obtained a European grant to modernize the system of registration of particles’ time-of-flight and instruments for data collection of the spectrometer.

The HADES collaboration is interested in undergraduate and postgraduate students to participate in the experiment itself and processing of the experimental data. Those who wish to study at masters or postgraduate degree program are invited to get acquainted with group members and discuss all interested issues during the Open day, which will be held on November 12, 2015, from 16:15 – 18:00, in building 33, 3rd floor, room 302.

For all questions, please contact:

Arkadiy Taranenko, Associate Professor of the Department №67, AVTaranenko@mephi.ru

Ilya Selyuzhenkov, Associate Professor of the Department №67, a permanent employee of GSI (Germany), ilya.selyuzhenkov@gmail.com