THEME03-1-1011-95/2002

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03-1-1011-95/2002

Priority:
Status:

1
In-progress

Investigation of the Properties of Nuclear Matter in Experiments with Nuclei and Polarized Particles
(Projects DISK, STAR, CERES/NA45)

Leader:

Yu. Panebratsev

Scientific Programme:

Investigation of the asymptotic properties of the extremely excited nuclear matter and vacuum nature of the quantum field theory in experiments at the relativistic nuclei and polarized proton collider RHIC.
Study of the hot early stage of the dynamics of ultrarelativistic nuclear collisions in the experiment CERES/NA45 dedicated to the measurement of electron-positron pairs, and direct photons at CERN SPS energies.
Study of the properties of polarized and unpolarized nuclear matter at small distances in experiments on cumulative and high particle production (DISK spectrometer).
Study of nuclear and colour transparency in experiments at AGS (BNL) and Yerevan electron synchrotron.

Expected main results in 2001:

Data-taking and analysis of experimental data on gold-gold collisions from the STAR experiment at RHIC.
Analysis of experimental data on electron-positron pair production in lead-gold collisions at 40, 80 and 160GeV with high resolution on the effective mass accumulated in the lead beam runs at SPS with upgraded CERES/NA45 spectrometer.
Manufacturing and tests of elements of the silicon vertex detector for the DISK experiment at the Nuclotron.
Analysis of experimental data on photodesintegration of deuteron with the polarized photon beam at the energy up to 2 GeV in joint YerPhI - JINR experiment.

List of Activities
	Activity or project	Spokespersons	Status
1.	DISK	Yu. Panebratsev S. Shimansky	Data taking
2.	CERES/NA45	Yu. Panebratsev V. Yurevich	Data taking
3.	STAR	Yu. Panebratsev	Preparation

Participating Institutes and Organizations

Armenia	YerPhI (Yerevan)
Azerbaijan	ANACA, IP (Baku)
CERN
Czech Republic	IP (Prague), NRI (Rez)
Germany	RKU, MPIK (Heidelberg)
Israel	WIS (Rehovot)
JINR	LIT, BLTP
Kazakhstan	PTI (Almaty)
Romania	INFIN-HH (Bucharest)
Russia	MEPI (Moscow), PSU (St.Petersburg) BINP (Novosibirsk)
Tajikistan	TSU (Dushanbe)
USA	BNL (Upton), ANL (Argonne), IUB (Bloomington) PENN State (University Park), Yale Univ. (New Haven) WSU (Detroit)
Yugoslavia	INS "Vinca" (Belgrade), Univ. (Podgorica)

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Investigation of the Properties of Nuclear Matter in Experiments with Nuclei and Polarized Particles (Projects DISK, STAR, CERES/NA45)

Leader:

Scientific Programme:

List of Activities

Participating Institutes and Organizations

Investigation of the Properties of Nuclear Matter in Experiments with Nuclei and Polarized Particles
(Projects DISK, STAR, CERES/NA45)