THEME02-7-1016-96/2003

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02-7-1016-96/2003

Priority:

Status:

Approved for completion
in 2003

Charmed and Strange Quarks in Hadronic Reactions
(OSCAR)

Leader:

V.D. Kekelidze

Scientific Programme:
Experiment EXCHARM-II at IHEP (Protvino) has been carried out 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 "direct" CP-violation in kaon decays. The experiment is continued for a high sensitivity study of K_s and neutral hyperon decays by using a modified K_s beam, and precision measurements of charged kaon decay parameters with the upgraded NA48 set-up.
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 2003:

New experimental data will be accumulated and analysed.
New results on K_s and hyperon rare decays will be obtained on the base of 1999-2002 data.
New programmes to monitor data taking, to simulate and analyse data, will be developed.
Preparation and performance of an experimental run at CERN SPS in accordance with the programme to study charged kaon decays, NA48/2.
The inclusive production cross-sections of ^- and ⁺ will be measured.
The A-dependence of the hyperons inclusive production cross-section will be measured.
The investigation of Bose-Einstein correlations for the identical boson pair will be continued.
Polarization of ^- will be measured.
New BPC chamber, PLUG detector and FPS spectometer will be in operation.
New reconstruction programmes for BPC, PLUG and FPS-detectors will be developed and implemented.
Diffractive structure function F₂ ^D(3) will be measured in DIS processes with a leading proton in the final state.

List of Activities

Activity or project

Spokespersons

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
France	Saclay	CEN 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-AS RK
Poland	Warsaw	SINS
Romania	Bucharest	IFIN-HH
Russia	Moscow	MEPhI
United Kingdom	Cambridge	Univ.
	Edinburgh	EUE
USA	Chicago, IL	UC
	Evanston, IL	NWU

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Charmed and Strange Quarks in Hadronic Reactions (OSCAR)

Charmed and Strange Quarks in Hadronic Reactions
(OSCAR)