THEME02-7-1016-96/2006

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02-7-1016-96/2006

Priority:

Status:

In-progress

Charmed and Strange Quarks in Hadronic Reactions
(OSCAR)

Leader:

V.D. Kekelidze

Scientific Programme:
Experiment EXCHARM-II at IHEP (Protvino) is designed to search for exotic states with strange quarks and to study the production and decay of particles with charmed and strange quarks.
Experiment NA48 at CERN is purposed to obtain the most precise data on the CP-violation processor and rare kaon decays. The experiment is continued for a high sensitivity study of K_s and neutral hyperon decays using a modified K_s beam, and precision measurement of charged kaon decay parameters with the upgraded NA48 setup and new K12 beam line.
Experiment H1 is purposed to study processes of deep-inelastic ep-scattering in a wide kinematic range up to very high Q ² and down to very low Bjorken x to test QCD and electroweak sectors of the Standard Model.

Expected main results in 2005:

New experimental data will be accumulated, processed and analysed.
New results on kaon and hyperon rare decays as well as on the measurement of CP-violating asymmetry in K3 decays will be obtained, on the base of data accunulated in 1999-2004 runs.
New programmes to monitor data taking, for simulation and data analyses will be developed.
Preparation of new proposal ro study kaon rare decays at CERN SPS.
Study of asymmetry in inclusive production cross-sections of ^- and ⁺.
The A-dependence of hyperons inclusive production cross-section will be measured.
The investigation Bose-Einstein correlations for the identical boson pair will be continued.
New BPC chamber, PLUG detector and FPS spectometer will be maintained.
Development of reconstruction programmes for BPC, PLUG and FPS-detectors.
Diffractive structure function F₂ ^D(3) will be measured in DIS processes with a leading proton in the final state.
Measurement of the diffractive inclusive cross section of photo-production and get photo-production hadrons with high transverse momentum.

List of projects:
	Project	Leader	Priority (period of realisation)
1.	NA48	V.D. Kekelidze	1 (1996-2006)
2.	H1	M.N. Kapishin V.D. Kekelidze	1 (1996-2006)
3.	EXCHARM--II	V.D. Kekelidze Yu.K. Potrebenikov	2 (1996-2005)

List of Activities

Activity or Experiment

Leader

Status

EXCHARM-II
Neutral beam U-70
Protvino

V.D. Kekelidze
Yu.K. Potrebenikov

Data analysis

NA48, SPS CERN

V.D. Kekelidze

Data taking
Data analysis
Upgrade

H1, DESY

M.N. Kapishin

Upgrade
Data taking
Data analysis

Collaboration
Country or international organization	City	Institute or Laboratory
Austria	Vienna	HEPHY
Belarus	Minsk	NC PHEP BSU
Bulgaria	Sofia	SU
		INRNE BAS
	Plovdiv	UP
CERN	Geneva
France	Saclay	SPhN CEA DAPNIA
Georgia	Tbilisi	IP GAS
Germany	Mainz	JGU
	Siegen	Univ.
	Hamburg	DESY
Italy	Florence	INFN
	Ferrara	INFN
	Perugia	INFN
	Pisa	INFN
	Turin	INFN
JINR	Dubna	LIT
Kazakhstan	Almaty	PTI MS-NAS RK
Poland	Warsaw	SINS
Romania	Bucharest	IFIN-HH
Russia	Moscow	MEPhI
The United Kingdom	Cambridge	Univ.
	Edinburgh	Univ.
The USA	Chicago, IL	UChicago
	Evanston, IL	NU

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Charmed and Strange Quarks in Hadronic Reactions (OSCAR)

Charmed and Strange Quarks in Hadronic Reactions
(OSCAR)