THEME05-2-1040-2001/2006

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05-2-1040-2001/2006

Priority:

Status:

In-progress

Nucleus and Particle Interactions at Intermediate Energies

Leader:

V.I. Komarov

Scientific Programme:
Investigation of processes of strong, weak and electromagnetic interaction of elementary particles and light nuclei at intermediate energies with the aim of determining symmetries and dynamics of the interactions. Development and construction of set-ups for experiments at accelerators (JINR phasotron, PSI meson factory, COSY proton synchrotron) for obtaining new information and testing the present theoretical views in the topics. Development of projects for new experiments and experimental methods for intermediate-energy physics.

Expected main results in 2005:

Processing and analysis of the data on radiative decay of pion received in 2004. Modernization of spectrometer PIBETA.
Processing and analysis of data on pd (pp)_s n and pd (pp)_s N reactions. Determination of a singlet-triplet ratio in single pion production at 0.8 GeV in study of pp (pp)_s ⁰ process. Determination of tensor analyzing power of the charge exchange breakup of deuterons (2.4 GeV/c) by protons. Upgrade of the ANKE drift chambers.
Further measurement and analysis of data (25000 events), already obtained at the pion beam of the JINR phasotron. Submitting for publication of two articles with results of study of He-interaction. Commissioning of a ³He regeneration system at the DUBTO setup. Performing of 2 runs (of 120 hours each) of beam time with exposition at the pion beam of 60-70 MeV.
Production, assembling and commissioning of a setup for measurement of reaction of radiation capture of muon in deuterium from the dd µ mesomolecule.
Data taking on the JINR Phasotron and the meson factory at PSI (Switzerland). Study of the uniaxial pressure influence on interaction of the shallow acceptor center in silicon crystal. Investigation of the positive muon behaviour in the diluted magnetic liquids.
Test of a new readout electronics for multiwire chambers. Start of the FAMILON experiment in the full configuration at the muon beam of the JINR Phasotron (FAMILON).
Development of the production technology and manufacturing of aerogel samples with refractive index n=1.10-1.15 for testing at the VBLHE accelerator. Constructing and testing of the Cherenkov aerogel raster-type detector for recording of space radiation showers.

List of projects:
	Project	Leader	Priority (period of realisation)
1.	DUBTO	N.A. Russakovich D.B. Pontecorvo	1 (1998-2006)
2.	CATALYSIS	V.G. Zinov	1 (2003-2006)
3.	МЮОН	V.N. Duginov T.N. Mamedov	1 (1997-2006)
4.	FAMILON	V.N. Duginov V.A. Gordeev	1 (2000-2006)

List of Activities

Activity or Experiment

Leader

Status

PIBETA

S.M. Korenchenko

Data taking

ANKE COSY

V.I. Komarov

Data taking

DUBTO

N.A. Russakovich
G. Piragino

Data taking

CATALYSIS

V.G. Zinov

Preparation
Data taking

MUON

V.N. Duginov
T.N. Mamedov

Data taking

FAMILON

V.A. Gordeev
V.N. Duginov

Preparation

AEROGEL

A.I. Filippov

Preparation
Production

Collaboration
Country or international organization	City	Institute or Laboratory
Azerbaijan	Baku	IP ANAS
Belarus	Minsk	NC PHEP BSU
		IP NASB
		RINP BSU
Bulgaria	Sofia	SU
CERN	Geneva
Croatia	Zagreb	RBI
Georgia	Tbilisi	HEPI TSU
Germany	Aachen	RWTH
	Heidelberg	Univ.
	Julich	FZJ
	Cologne	Univ.
	Munster	UM
	Rossendorf	FZR IKH
	Stuttgart	MPI-MF
Italy	Frascatti	INFN LNF
	Rome	Univ. I
	Turin	INFN
JINR	Dubna	DLNP
		BLTP
		FLNR
		LIT
The Netherlands	Delft	TUDelft
Poland	Otwock-Swierk	SINS
Russia	Alexandrov	VNIISIMS
	Gatchina	PNPI RAS
	Moscow	SSC-ITEP
		GPI RAS
		MSU
		SINP MSU
		SSC RRC KI
	Sarov	RFNC-VNIIEF
Switzerland	Zurich	Univ.
		ETH
	Villigen	PSI
The USA	Charlottesville, VA	UVa
	Pittsburgh, PA	Univ.
	Tucson, AZ	UA

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