THEME02-1-1097-2010/2018

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02-1-1097-2010/2018

Priority:

Status:

Extended

Study of Polarization Phenomena and Spin Effects
at the JINR Nuclotron-M Facility

Leader:	A.D. Kovalenko
Deputies:	N.M. Piskunov V.P. Ladygin M. Finger (Jr.) R.A. Shindin

Participating Countries, Institutes and International organizations:
Belarus, Bulgaria, CERN, Czech Republic, France, Germany, Japan, Poland, Romania, Russia, Slovakia, Sweden, Switzerland, Ukraine, United Kingdom, USA, Uzbekistan.
Scientific Programme:
Methodical support of the experiments at polarized beams of the Nuclotron-M and NICA facilities, including development of polarimetery systems. Measurement of analyzing power for the reaction p + CH₂ at polarized proton momentum up to 7.5 GeV/c and polarized neutrons momentum 4.5 GeV/c at the setup ALPOM-2. Measurement of tensor analyzing power and spin correlation in d

p reaction in the deuteron core area with the use of polarized ³He target and polarized deuteron beam of the Nuclotron-M. Study of 2N- and 3N-correlations in deuteron-proton elastic scattering and deuteron break-up reactions at the Nuclotron internal target. Works on modernization of Saclay-Argonne-JINR polarized proton target (setup PPT). The analysis of set of the np spin observables at 0 ^o (the total np cross section differences), using polarized targets and quasi-monochromatic relativistic 1.2-3.6 GeV neutron beams. Determination of the forward scattering NN amplitudes over this energy region. Comparison of the obtained data with QCD motivated model calculations. Study of charge-exchange processes in dp--interactions at the setup STRELA. Development of theoretical models for description of the simplest nuclear systems taking into account relativistic effects, meson and quark-gluon components of the internal movement. Theoretical analysis of experimental data obtained at Nuclotron-M. The study of the properties of strongly interacting matter utilizing polarization phenomena in hadron-nucleon and lepton-nucleon interactions, and in the decay of polarized radioactive atomic nuclei. Study of highly excited nuclear matter and collective effects in nuclear media; delta and other nucleonic resonance excitations on protons and nuclei. Preparation of the setup DELTA-LNS and data taking on the light neutral mesons production in polarized nucleons and nucleus interactions.

Expected main results in 2016:

Works:
a) on the construction low energy proton and deuteron polarimeter within the frames of the program: "Spin Physics Research Infrastructure at the Nuclotron";
b) on the measurements of analyzing power of neutron-CH scattering at polarized neutron momentum from 3 to 4.5 GeV/c.
Completion of stages of the approved projects and collaborative protocols within the frames of their real financial support, including:
a) realization of the projects ALPOM-2 and DSS;
b) experiments at the setup ALPOM-2 analysis of the collected data from DELTA-SIGMA setup.
Participation in the design and construction of BM@N setup in accordance with general plan.
Participation in the joint scientific programs and experiments, design and test of the new detectors and electronics for the use at SPS (CERN), RHIC (BNL), TJNAF (Newport News), FAIR (GSI) in accordance with the approved collaborative agreements.
Continuation of the development of the new methods to calculation of the amplitudes and polarization characteristics of deuteron fragmentation and deuteron elastic scattering on protons and nuclei taking into account FSI and relativistic effects.

List of projects:
	Project	Leader	Priority (period of realisation)
1.	ALPOM-2	N.M. Piskunov	1 (2010-2016)
2.	DSS	V.P. Ladygin A.I. Malakhov T. Yesaka	1 (2010-2018)

List of Activities

Activity or Experiment

Leader

Status

Laboratory or other
Division of JINR
Responsible person

Main researchers

Works on the development:
of spin physics research
infrastructure at the
Nuclotron and other facilities

A.D. Kovalenko

Realization

VBLHEP

V.P. Ladygin, S.G. Reznikov, P.K. Kurilkin, S.M. Piyadin, Yu.V. Gurchin, V.V. Glagolev, V.I. Sharov, A.I. Malakhov, A.P. Nagaytsev, I.A. Savin, A.N. Livanov, R.A. Shindin, V.V. Fimushkin, A.M.Taratin

BLTP

V.V. Burov, V.K. Lukyanov, A.V. Efremov, O.V. Teryaev

DLNP

M. Finger, M. Finger (Jr.)

LIT

R.V. Polyakova + 1 pers.

ALPOM-2 Project

N.M. Piskunov
E. Tomasi-Gustafsson
C.F. Perdrisat
V. Punjabi

Data taking

VBLHEP

V.V. Glagolev, I.M. Sitnik, A.A. Povtoreyko, Yu.P. Bushuev, D.A. Kirillov, P.A. Rukoyatkin, O.P. Gavrishchuk, S.N. Bazylev, A.D. Kovalenko, R.A. Shindin, A.N. Livanov

DSS Project

A.I. Malakhov
V.P. Ladygin
T. Yesaka

Preparation
Data taking

VBLHEP

S.G. Reznikov, A.K. Kurilkin, P.K. Kurilkin, S.M. Piyadin, Yu.V. Gurchin, A.A. Terekhin, Yu.-T. Karachuk, A.N. Livanov, A.N. Khrenov, N.B. Ladygina, A.P. Ierusalimov, A.Yu. Isupov

DLNP

G.I. Lykasov

Modernization of the polarized
proton target infrastructure
(setup PPT)

N.S. Borisov
R.A. Shindin

Preparation
Data taking

VBLHEP

R.A. Shindin

DLNP

Yu.A. Usov, Yu.A. Plis, N.A. Bazhanov, A.N. Fedorov

Development of the Delta-Sigma
program for future experiments
at setup BM@N

A.D. Kovalenko
V.I. Sharov
R.A. Shindin

Data analysis
Project preparation

VBLHEP

E.V. Chernykh, P.K. Manyakov, Yu.T. Borzunov, N.A. Kuzmin, I.P. Yudin

DLNP

N.S. Borisov, Yu.A. Usov, M. Finger, M. Finger (jr.), E.I. Bunyatova, M. Slunechka, V. Slunechkova, A. Yanata

FLNP

S.B. Borzakov, Ts. Panteleev

BLTP

N.V. Kochelev

LIT

R.V. Polyakova + 1 pers.

Experiments on the program STRELA

N.M. Piskunov

Data taking
Data processing

VBLHEP

V.V. Glagolev, I.M. Sitnik, Yu.P. Bushuev, A.A. Povtoreyko, D.A. Kirillov, S.N. Bazylev, P.K. Manyakov

Theoretical calculations of polarized processes

V.V. Burov
V.K. Lukyanov

Data analysis

BLTP

V.V. Burov

VBLHEP

N.B. Ladygina, A.P. Ierusalimov

Spin effects in hadron-nucleon and lepton-nucleon interactions

M. Finger

Data analysis

DLNP

E.I. Bunyatova, M. Slunechka, V. Slunechkova, M. Finger (Jr.), A. Yanata

Works on the program DELTA-2
(INR RAS - JINR)

A.B. Kurepin
A.N. Livanov

Preparation
Data taking

VBLHEP

S.N. Bazylev, A.P. Ierusalimov, P.K. Manyakov, V.P. Ladygin, Yu.S. Anisimov, S.M. Piyadin

Collaboration
Country or International Organization	City	Institute or Laboratory
Belarus	Minsk	INP BSU
Bulgaria	Sofia	UCTM
CERN	Geneva	CERN
Czech Republic	Prague	CU
		CTU
	Brno	ISI ASCR
	Liberec	TUL
	Rez	NPI ASCR
France	Saclay	IRFU
	Orsay	IPN Orsay
Germany	Dresden	TU Dresden
	Bochum	RUB
	Julich	FZJ
Japan	Tokyo	UT
	Hiroshima	Hiroshima Univ.
	Osaka	RCNP
Poland	Otwock-Swierk	NCBJ
Romania	Bucharest	INCDIE ICPE-CA
Russia	Gatchina	PNPI
	Moscow	LPI RAS
		NRC KI
	Moscow, Troitsk	INR RAS
Slovakia	Bratislava	IP SAS
	Kosice	IEP SAS
		PJSU
	Zilina	UZ
Sweden	Uppsala	TSL
Switzerland	Geneva	UniGe
	Villigen	PSI
Ukraine	Kharkov	KFTI
United Kingdom	Glasgow	U of G
USA	Upton, NY	BNL
	Newport News, VA	JLab
	Norfolk, VA	NSU
	Williamsburg, VA	W&M
Uzbekistan	Tashkent	INP AS RUz
		Assoc."P.-S." PTI

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Study of Polarization Phenomena and Spin Effects at the JINR Nuclotron-M Facility

Study of Polarization Phenomena and Spin Effects
at the JINR Nuclotron-M Facility