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02-0-0941-91/2009
Priority:1
Status: Extended

Search for Non-Nucleon Degrees of Freedom and Spin Effects
in Few-Nucleon Systems

Leader:   N.M. Piskunov
G. Martinska

Scientific Programme:
Study of charge-exchange processes in dp interactions (STRELA). Study of polarization characteristics of different reactions with polarized and nonpolarized deuterons and nucleons in inclusive, exclusive and correlation experiments (DELTA-SIGMA). Measurement ofanalyzing powers for the reaction p + CH2 at polarized proton momentum 3-6 GeV/c (ALPOM).
Study of highly excited nuclear matter and collectivity effects in nuclear medium; delta and other nucleonic resonance excitations on protons and nuclei.
Modernization of the polarized proton target to study polarization characteristics of NN and dN interactions. Detector development for relativistic nuclei and polarization experiments at the Nuclotron (DELTA-SIGMA), CEBAF (Hall C), COSY.
First measurements of complete set of the np spin observables at 0 o - L(np), T(np), A00kk(np), A00nn(np) and Rdp (the total np cross section differences and spin-correlation parameters), using longitudinal (L) and transverse (T) polarized and unpolarized targets as well as quasimonochromatic relativistic 1-6 GeV neutron beams. Data on energy dependences of these observables allow to determine the forward scattering NN amplitudes, for the first time over this energy region. Comparison of the obtained data with QCD motivated calculations.
The study properties of strongly interacting matter utilizing polarization phenomena in hadron-nucleon and lepton-nucleon interactions, and in the decay of atomic nuclei. Experiments will per-formed using high intensity polarized and unpolarized hadron and lepton beams and polarized and unpolarized solid state targets and high intensity radioactive ion beams.

Expected main results in 2007:
List of projects:
  Project Leader Priority
(period of realisation)
1. STRELA V.V. Glagolev
N.M. Piskunov
1   (2000-2009)
2. DELTA-SIGMA L.N. Strunov
V.I. Sharov
1   (2001-2009)
3. MPT E.A. Matyushevsky
N.S. Borisov
1   (2001-2007)
4. ALPOM N.M. Piskunov
E. Tomasi-Gustafsson
2   (2001-2008)


List of Activities
  Activity or Experiment Leader
Status
1. STRELA V.V. Glagolev
N.M. Piskunov
Data taking
2. DELTA-SIGMA L.N. Strunov
V.I. Sharov
Data taking
3. ALPOM N.M. Piskunov
E. Tomasi-Gustafsson
C. Pedrisat
Preparation
Data taking
4. Modernization of the polarized proton target E.A. Matyushevsky
N.S. Borisov
Upgrade
5. Theoretical calculations of polarized processes V.V. Burov
V.K. Lukyanov
Data analysis
6. Detector development for WASA/COSY A.A. Povtoreyko
Preparation
Data taking
7. Spin effects in hadron-nucleon and lepton-nucleon interactions M. Finger
Data analysis

Collaboration
Country or international
organization
City Institute or Laboratory
Belarus Minsk INP BSU
Bulgaria Sofia INRNE BAS
UCTM
CERN Geneva
Czech Republic Prague CU
CTU
Rez NPI ASCR
France Saclay SPhN CEA DAPNIA
Georgia Tbilisi IHEPI TSU
Germany Dresden TUD
Julich FZJ
Italy Trieste INFN
Japan Hiroshima Hiroshima Univ.
Osaka RCNP
JINR Dubna LIT
BLTP
DLNP
LPP
Poland Lodz FPCh UL
Otwock-Swierk SINS
Russia Gatchina PNPI RAS
Moscow LPI RAS
RRC KI
Troitsk INR RAS
Slovak Republic Kosice IEP SAS
UPJS
Sweden Uppsala UU
Switzerland Geneva UniGe
Villigen PSI
Ukraine Kharkov KFTI NASU
Kiev BITP NASU
USA Upton, NY BNL
Newport News, VA JLab
Norfol, VA NSU
Williamsburg, VA WM
Uzbekistan Tashkent INP UAS
Assoc."P.-S." PTI

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