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03-0-0941-91/2006
Priority:1
Status: Extended

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

Leader:   N.M. Piskunov
V.V. Glagolev
G. Martinska

Scientific Programme:
Study of charge-exchange processes in dp interactions. Study of polarization characteristics of different reactions with polarized and nonpolarized deuterons and nucleons in inclusive, exclusive and correlation experiments (PPM, BES, SINGLET, DELTA-SIGMA). Study of the structure of light 2D, 3He and 4He nuclei at small distances and search for manifestations of non-nucleonic and quark degrees of freedom. Study of highly excited nuclear matter and collectivity effects in nuclear medium; delta and other nucleonic resonance excitations on protons and nuclei. Study of spin-spin correlations in pp elastic scattering. 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 (SINGLET, DELTA-SIGMA), PSI, CEBAF (Hall A), COSY.
Preparation and performance of measurements of the L(np) and A00kk(np) - total np cross section difference and spin-correlation parameter from np pn charge exchange at 0 o (180 o c.m) in experiments with longitudinal by polarized proton target and neutron beams at the energies 1.5, 1.7 and 2.0 GeV. For the same energies of nonpolarized neutrons, preparation and performance of measurements of cross sections for np charge-exchange at the zero angle on H, D and C targets.

Expected main results in 2004:






List of Activities
  Activity or project Spokespersons
Status
1. STRELA V.V. Glagolev
N.M. Piskunov
Data taking
2. PPM E.A. Matyushevsky
N.S. Borisov
Upgrade
3. BES I.M. Sitnik
L.S. Azhgirey
Preparation
4. SINGLET E.A. Strokovsky
N.M. Piskunov
Preparation
5. DELTA-SIGMA L.N. Strunov
V.I. Sharov
Data taking
6. Theoretical calculations of polarized processes V.V. Burov
V.K. Lukyanov
Data analysis
7. KAPPA I.M. Sitnik
Preparation
Data taking
8. ALPOM N.M. Piskunov
E. Tomasi-Gustafsson
C. Pedrisat
Preparation
Data taking

Collaboration   
Country or international
organization
City Institute or Laboratory
Belarus Minsk RINP BSU
Bulgaria Sofia INRNE BAS
UCTM
Czech Republic Prague CU
CTU
Rez NPI ASCR
France Orsay IPN Orsay
Saclay SPhN CEA DAPNIA
Georgia Tbilisi HEPI TSU
Germany Dresden TUD
Julich FZJ
Italy Trieste INFN
Japan Hiroshima Hiroshima Univ.
JINR Dubna LIT
BLTP
DLNP
LPP
Kazakhstan Almaty PTI MS-NAS RK
Poland Lodz FPCh UL
Otwock-Swierk SINS
Warsaw SINS
Russia Gatchina PNPI RAS
Moscow SINP MSU
MSU
LPI RAS
SSC RRC KI
Troitsk INR RAS
Slovak Republic Kosice IEP SAS
UPJS
Spain Valencia UV
Switzerland Geneva UniGe
Villigen PSI
Ukraine Kharkov KFTI NASU
Kiev BITP NASU
The USA Los Alamos, NM LANL
Norfol, VA NSU
Williamsburg, VA WM
Uzbekistan Tashkent INP UAS
Assoc."P.-S." PTI

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