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JINR PAC DUBNA 2002

JINR PAC DUBNA 2002. Research Program. One of the most compelling questions in modern Nuclear Physics is what role quark and gluon degrees of freedom play in nuclear structure and in the dynamic of nuclear matter!. What is possible contribution of the DISK project research program

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JINR PAC DUBNA 2002

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  1. JINR PAC DUBNA 2002

  2. ResearchProgram One of the most compelling questions in modern Nuclear Physics is what role quark and gluon degrees of freedom play in nuclear structure and in the dynamic of nuclear matter! What is possible contribution of the DISK project research program to clarify this problem?

  3. The goal of experiments at DISK spectrometer is study of cumulative particle production. Baldin,1971 Quark-parton structure function Short-range multinuclon correlation

  4. Hypothesis of “minimal economical interactions” V.Stavinsky, 1981 Subthreshold processes High-PT and Z-scaling Cumulative reactions

  5. Dynamic Correlation

  6. Results of Experiments in 1997-2001

  7. JINR-Yerevan Physics Institute Asymmetry of deuteron photodisintegration process by linearly polarized photons

  8. Experiments at AGS (EVA/E850 Collaboration) Color Transparency ENERGY DEPENDENCE OF NUCLEAR TRANSPARENCY IN C(P, 2P) SCATTERING. Phys.Rev.Lett.87:212301,2001

  9. Experiments at AGS (EVA/E850 Collaboration) N-P Short Range Correlations from (P,2P + N) Measurements. . AIP Conf.Proc.549:451-454,2002, Submitted to Phys.Rev.Lett Backward emitted high-energy neutrons in hard reactions of p and p+ on carbon Nucl-ex/00050006 28 may 2000

  10. Detector Upgrade

  11. Cryogenic Targets

  12. The high effective nonmagnetic spectrometers (10 spectrometers) based on organic and NaI(Tl) scintillators needed for the registration of neutrons and photons are included in the setup

  13. Identification Methods Neutron/PhotonSeparation by Pulse ShapeAnalysis (Detectors with Stylben Crystals) ADC2 , chan. ADC1 , hcan. ADC , chan TDC , chan. Charged Particle Separation by TOF-E Analysis (Detectors with Plastic Scintillators and NaJ(Tl) Crystals) ADC , chan TDC , chan.

  14. Neutron Spectra Obtained with Spectrometer

  15. Trigger System development

  16. Cooperation with Nuclear Physics Institute (Czech Republic) on the design and manufacturing of the Silicon Vertex Tracker.

  17. Experimental program at NUCLOTRON in 2003-2005

  18. FROM THE SUMMARY OF THE ROUND TABLE DISCUSSION AT VARNA WORKSHOP’01 • PHYSICAL PROBLEMS • Strangeness in light nuclei (deuterium, helium) and K-meson asymmetry in the cumulative region. • Exclusive pD break-up reaction at high transverse momentum , spin asymmetry and color transparency. • The structure of relativistic compound systems. • Dynamic correlations in the cumulative production processes. • Fragmentation of polarized deuterons into cumulative mesons. • REQUIREMENTS TO THE NUCLOTRON • Beams Intensity Spill duration Operating time in use • 2002 p, d, d , 1010-107 1,0 s 2000 hours • 2003 p, d, d , 1011-109 5,0 s 2500 hours • 2004 p, d, d , 1011-107 10,0 s 3000 hours • 2005 p, d, d , 1011-107 10,0 s 3500 hours

  19. Installation of Beam Detectors at Beam Line of Nuclotron

  20. Conclusion Our request is to extend the project with the first priority for the next 3 years and to provide a level of the financial support not less than it was in 2000-2002.

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