02-1-1097-2010/2021
 
Priority: 1
   
Status: Being concluded


Study of Polarization Phenomena and Spin Effects
at the JINR Nuclotron-M Facility
  

Leader:     A.D. Kovalenko
Deputies:     N.M. Piskunov
V.P. Ladygin
M. Finger (Jr.)
R.A. Shindin

Participating countries and international organizations:
Bulgaria, CERN, Czech Republic, France, Germany, Japan, Poland, Romania, Russia, Slovakia, Switzerland, Sweden, Ukraine, United Kingdom, USA, Uzbekistan.

Issues addressed and main goals of research:
Development of the infrastructure for spin physics research at the Nuclotron-M/NICA and other facilities. Preparation of the spin control and polarimetry system projects. Measurement of analyzing power in the reaction of polarized protons and polarized neutrons with polyethylene target at the momentum up to 7.5 GeV/c and up to 6.0 GeV/c for the polarized proton and neutron respectively at the setup ALPOM-2. Study of 2N- and 3N-correlations in deuteron-proton elastic scattering and deuteron break-up reactions at the Nuclotron internal target. Measurement of the cross sections and deuteron analyzing powers of the reactions. Completion of the data analysis obtained at the setup Delta-Sigma. Preparation of the proposals on modernization of the spectrometer and the Saclay-Argonne-JINR polarized proton target (setup PPT). Obtained new data on the studying of charge-exchange processes in the interactions of polarized deuterons and protons at the setup STRELA. Development of theoretical models for the description of the simplest nuclear systems taking into account relativistic effects, meson and quark-gluon components of the internal movement. Theoretical analysis of the experimental data obtained at the Nuclotron-M. The study of the properties of strongly interacting matter utilizing polarization phenomena in hadron-nucleon and lepton-nucleon interactions, and in the decay of polarized radioactive atomic nuclei. Study of highly excited nuclear matter and collective effects in nuclear media; delta and other nucleonic resonance excitations on protons and nuclei. Works on the program of the setup DELTA-2 design INR RAN/JINR.

Expected results in the current year:
  • Works:
    a) preparation of technical documentation for the project of low energy proton and deuteron polarimeter at the Nuclotron injection channel;
    b) work on the project of  a polarimeter based on a cluster target for the NICA collider.

  • Fulfilment of the works in accordance with the approved projects and collaborative protocols within the frames of their real financial support, including realization of the projects ALPOM-2 and DSS. Completion of the proton polarimeter upgrade at the Nuclotron internal target. Completion of the data analysis on the analyzing powers AyAyy and Axx in deuteron-proton elastic scattering at the energies 400-1300 MeV. Publication and reports of the results.

  • Conceptual design of the installation scheme of the equipment aimed at beam polarimetry, and the polarization control at the SPD straight section of the collider. 

  • Participation in the joint scientific programs and experiments, design and test of the new detectors elements at the other facilities SPS, LHC, FCC (CERN), RHIC (BNL), MEIC (TJNAF), FAIR (GSI) etc. in accordance with the Agreements.

  • Continuation of the development of new calculation methods of the amplitudes and polarization characteristics of deuteron fragmentation and deuteron elastic scattering on protons and nuclei taking into account FSI and relativistic effects.
  • Analysis of possibilities of providing new experiments with polarized proton and deuteron beams at the NICA complex, searching of the EDM, in particular.
List of projects:
  Project Leader Priority
(period of realisation)
1. ALPOM-2 N.M. Piskunov 1   (2010-2021)
2. DSS V.P. Ladygin
M. Janek
K. Sekiguchi
1   (2010-2021)

List of Activities
  Activity or Experiment Leaders
Status
      Laboratory or other
    Division of JINR
Responsible person
Main researchers
1.

Development of spin physics
research infrastructure at the Nuclotron and other facilities.
Design, construction and
development of spin control
and polarimetry systems. The EDM searching analysis at NICA

 

A.D. Kovalenko
Realization
  VBLHEP A.V. Averyanov, Yu.N. Filatov, V.V. Fimushkin, V.V. Glagolev, A.A. Kolomiets, M.Yu. Korobitsyna, D.O. Krivenkov, R.A. Kuzyakin, M.V. Kulikov, V.P. Ladygin, K.S. Legostaeva, A.N. Livanov, N.M. Piskunov, S.G. Reznikov, R.A. Shindin, E.A. Strokovsky, A.M. Taratin
  DLNP M. Finger, M. Finger (Jr.), Yu.N. Uzikov
  LIT R.V. Polyakova
2. ALPOM-2 Project N.M. Piskunov
Data taking
  VBLHEP S.N. Bazylev, Yu.P. Bushuev, O.P. Gavrishchuk, V.V. Glagolev, A.N. Livanov, D.A. Kirillov, A.D. Kovalenko, A.A. Povtoreyko, P.A. Rukoyatkin, R.A. Shindin, I.M. Sitnik
3. DSS Project V.P. Ladygin
M. Janek
K. Sekiguchi
Preparation
Data taking
  VBLHEP E.V. Chernykh, Yu.V. Gurchin, A.Yu. Isupov, A.N. Khrenov, N.B. Ladygina, A.N. Livanov, S.G. Reznikov, Ya.T. Skhomenko, A.A. Terekhin, A.V. Tishevsky, I.S. Volkov
  DLNP G.I. Lykasov
4. Delta-Sigma setup R.A. Shindin
Completion of Data analysis
  VBLHEP Yu.T. Borzunov, E.V. Chernykh, I.P. Yudin
  DLNP N.S. Borisov, E.I. Bunyatova, M. Finger, M. Finger (Jr.), M. Slunechka, V. Slunechkova, Yu.A. Usov
  FLNP S.B. Borzakov
5. Experiments on the program
STRELA at polarized
beam
N.M. Piskunov
Data taking
  VBLHEP S.N. Bazylev, Yu.P. Bushuev, V.V. Glagolev, D.A. Kirillov, A.A. Povtoreyko, I.M. Sitnik
6. Theoretical calculations of
polarized processes
V.V. Burov
V.K. Lukyanov
Data analysis
  BLTP V.V. Burov
  VBLHEP N.B. Ladygina, A.P. Ierusalimov
7. Spin effects in hadron-nucleon
and lepton-nucleon interactions
M. Finger(Jr.)
Data analysis
  DLNP E.I. Bunyatova, M. Finger, M. Slunechka, V. Slunechkova
8. Works on the program DELTA-2
(INR RAS - JINR)
A.B. Kurepin
A.N. Livanov
Preparation
  VBLHEP Yu.S. Anisimov, S.N. Bazylev, A.P. Ierusalimov, V.P. Ladygin, S.M. Piyadin

 
Collaboration
 

Country or International Organization

City Institute or laboratory
Bulgaria Sofia UCTM
CERN Geneva CERN
Czech Republic Brno ISI CAS
  Prague CTU
    CU
  Rez UJV
France Orsay IPN Orsay
  Saclay IRFU
Germany Bochum RUB
  Darmstadt FAIR
  Dresden TU Dresden
  Freiburg FMF
  Julich FZJ
  Tubingen Univ.
Japan Hiroshima Hiroshima Univ.
  Miyazaki Miyazaki Univ.
  Osaka RCNP
  Sendai Tohoku Univ.
  Tokyo UT
  Wako RIKEN
Poland Otwock (Swierk) NCBJ
Romania Bucharest INCDIE ICPE-CA
Russia Belgorod BelSU
  Gatchina NRC KI PNPI
  Moscow LPI RAS
    NRC KI
  Moscow, Troitsk INR RAS
    LPP LPI RAS
Slovakia Bratislava IP SAS
  Kosice IEP SAS
    UPJS
  Zilina UZ
Sweden Uppsala TSL
Switzerland Villigen PSI
Ukraine Kharkov NSC KIPT
United Kingdom Glasgow U of G
USA Newport News, VA JLab
  Norfolk, VA NSU
  Upton, NY BNL
  Williamsburg, VA W&M
Uzbekistan Tashkent Assoc. P.-S. PTI
    INP AS RUz