THEME05-6-1060-2005/2013

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05-6-1060-2005/2013

Priority:

Status:

In-progress

Mathematical Support of Experimental and Theoretical Studies Conducted by JINR

Leaders:

V.V. Ivanov
Gh. Adam
P.V. Zrelov

Participating Countries, Institutes and International organizations:
Armenia, Australia, Belarus, Belgium, Brazil, Bulgaria, Canada, CERN, Chile, Czech Republic, Egypt, France, Georgia, Germany, Greece, Italy, Japan, Kazakhstan, Moldova, Mongolia, Poland, Portugal, Romania, Russia, Slovak Republic, South Africa, Sweden, Switzerland, Taiwan, Tajikistan, Ukraine, USA, Vietnam.
Scientific Programme:
Performance of top research in the field of computational mathematics and computational physics aimed at solving specific problems arising in experimental and theoretical studies conducted with the participation of JINR. Simulations of physical processes within experimental installations. Algorithm implementation into efficient and reliable hardware adapted programs. The successful realization of such research efforts assumes: development of new mathematical methods and tools for modeling physical processes and experimental data analysis; creation of methods and numerical algorithms for modeling magnetic systems; elaboration of software and computer complexes for experimental data processing; elaboration of numerical algorithms and software for the simulation of complex physical systems; development of methods, algorithms and software of computer algebra; contribution to the development of the new generation computing tools. Application of the developed methods and algorithms to other topics in science and technology (nanotechnology, biology, medicine, economy, industry, etc.)

Expected main results in 2012:

Research in the mechanisms of interaction of lithium isotopes with nuclei and protons within a hybrid microscopic model.

Simulations of nucleus-nucleus collisions close to Fermi energy in frames of the transport approach.

Development of new simulation programs of the K-mesons interaction with nucleons and nuclei, high-energy nucleus-nucleus interactions, as well as parameter sharpening of the Fritiof model (FTF) for meson-nuclear interactions in the Geant4 package.

Integration in the HEPWEB system of the web-oriented software complex for computing nucleus-nucleus interactions at low and intermediate energies within a microscopic model.

QCD analysis of COMPASS data on the inclusive and semi-inclusive DIS processes with the polarized leptons and nucleons in initial state.

Estimation of the spatial resolution of the CMS Cathode Strip Chambers for the 2011-2012 data received from the LHC.
Development of algorithms and program modules for high-precision solutions of nonlinear three-dimensional problems of magnetostatics on the basis of adaptive algorithms.

Computer simulations of the magnetic systems of accelerators SIS100, SIS300 for the projects FAIR (GSI) and NICA (JINR).

Optimization of the topology of the ferromagnetic screen of the RICH-CBM photodetectors (GSI).
Upgrade of the software and computer complexes for the CBM experiment by developing new approaches and algorithms to increase the efficiency of real-time data processing at various elements of the CBM installation by means of parallel computation on multi-core and graphic (GPU) processors.

Maintenance of the remote access system to the ATLAS Control Room during ATLAS experiment runs.

Software development and support for data processing of multiparameter experiments on heavy nuclei interactions and search of the properties of new neutron-enriched heavy nuclei in the N=126 area.

Increasing the accuracy of length extraction of scattering from the data of the DIRAC experiment by computation of unitary corrections of the order ² to the Moliere multiple scattering.

Development of a piecewise polynomial approximation (interpolation) algorithm of the sixth order, for accurate description of complicated one-dimensional dependences of arbitrary length.
Development of mathematical techniques and computing methods for the analysis of the phase diagram of the hadron-quark matter and properties of the hadron observables in the NICA experiment.

Study of the chiral phase transition in small fragments of baryon matter.

Elaboration of numerical schemes and software complexes for the study of diffusion in porous materials; time evolution of polaron; phase transitions in cuprates; properties of fluxon solutions in the models of Josephson contacts.

Theoretical and numerical study of the outgoing modes of the irregular integro-optical waveguides, synthesis of the integro-optical sensors parameters from the outgoing modes.

Qualitative analysis of the evolution of the anisotropic universe in the presence of a space string and a magnetic stream.

Numerical study of the processes of formation and evolution of thermo-elastic waves in the materials exposed to high energy heavy ions and of radiation stability of multilayered nanosystems within the modified thermal spike model.

Study of the moving solitons in localized nanostructure models.

Mathematical simulation of electronic nanostructures with predetermined spectral characteristics by means of Darboux transformation techniques.
Optimization of some algorithms for reducing systems of nonlinear algebraic and differential equations to involution and their parallelization.

Development of finite symmetry groups based methods and algorithms for the investigation of models in quantum physics and elementary particle physics.

Computation of two-loop radiation corrections to the off-diagonal quark propagators.

Design of algorithms and computer programs for the hadron therapy taking into account third order aberrations.
Extension of the QuantumCircuit (Mathematica) package by elements of correcting error codes.

Determination of the geometrical probability of entangled mixed two-qubit states.

Development of symbolic-numerical algorithms for computing spectral and optical characteristics of spheroidal quantum dots and two-electron quantum systems.

Study of double-well optical lattices, each of which being defined by a double-well potential.

Construction of molecular surface maps for DNA-protein complexes, computation of electrostatic potentials of these complexes.

List of Activities
	Activity or Experiment	Leader
	Laboratory and Responsible person	Main researchers for the Laboratory
1.	Mathematical methods and tools for modeling physical processes and experimental data analysis	V.V. Ivanov P.V. Zrelov
	LIT	E.V. Zemlyanaya, V.M. Karnaukhov, B.F. Kostenko, I.N. Kukhtina, V.Yu. Lavrentiev, K.V. Lukyanov, A. Machavariani, T.I. Mikhailova, V.I. Palichik, A. Polanski, Yu.S. Smirnov, A.G. Soloviev, A.N. Sosnin, V.V. Uzhinsky, V.P. Filinova, N.Yu. Shirikova
2.	Methods and numerical algorithms for magnetic systems modeling	P.G. Akishin
	LIT	I.V. Amirkhanov, R.V. Polyakova, O.I. Yuldashev, M.B. Yuldasheva
3.	Software and computer complexes for experimental data processing	V.V. Ivanov P.V. Zrelov
	LIT	V.P. Akishina, I.N. Aleksandrov, E.I. Aleksandrov, S.A. Baginyan, O.Yu. Derenovskaya, N.D. Dikoussar, I.M. Ivanchenko, Yu.M. Itkis, A.A. Kazakov, P.I. Kisel, V.M. Kotov, L.Yu. Kruglova, A.A. Lebedev, S.A. Lebedev, M.A. Mineev, G.A. Ososkov, V.S. Shigaev, A.V. Yakovlev, V.B. Zlokazov
4.	Numerical algorithms and software for simulation of complex physical systems	Gh. Adam I.V. Puzynin
	LIT	S. Adam, E.A. Ayrjan, A.S. Àyriyan, I.V. Amirkhanov, I.V. Barashenkov, I.L. Bogolubsky, O.O. Voskresenskaya, Vo Trong Thach, E.V. Zemlyanaya, Yu.L. Kalinovsky, N.V. Makhaldiani, I.V. Molodtsova, D.I. Podgainy, T.P. Puzynina, V.S. Rikhvitsky, V.N. Robuk, N.R. Sarkar, I. Sarkhadov, B. Saha, S.I. Serdyukova, O.I. Streltsova, Z.K. Tukhliev, A.M. Chervyakov, O. Chuluunbaatar, Z.A. Sharipov, R.M. Yamaleev
5.	Methods, algorithms and software of computer algebra	V.P. Gerdt
	LIT	A.A. Bogolubskaya, A.A. Gusev, S.A. Evlakhov, V.V. Kornyak, Yu.G. Palii, A.M. Raportirenko, V.A. Rostovtsev, O.V. Tarasov, A.M. Khvedelidze, D.A. Yanovich
6.	Computing tools of a new generation	V.V. Ivanov Gh. Adam
	LIT	E.A. Ayrjan, V.P. Gerdt, A.A. Gusev, O.A. Afanasiev, J. Deperas, P.V. Zrelov, M.I. Zuev, Yu.G. Palii, V.A. Stepanenko, A.M. Khvedelidze, E.P. Yukalova

Collaboration
Country or International Organization	City	Institute or Laboratory
Armenia	Yerevan	YSU
		IIAP NASA
		RAU
	Ashtarak	IPR NASA
Australia	Sydney	Univ.
Belarus	Minsk	IM NASB
		JIPNR-Sosny NASB
	Brest	BSTU
Belgium	Brussels	ULB
	Liege	ULg
Brazil	Sao Carlos, SP	IFSC USP
Bulgaria	Sofia	IMI BAS
		INRNE BAS
		SU
	Plovdiv	PU
	Ruse	RU
Canada	Edmonton	U of A
	Toronto	IBM Lab
CERN	Geneva	CERN
Chile	Valparaiso	UTFSM
Czech Republic	Rez	NPI ASCR
Egypt	Cairo	TIMS
France	Metz	UPV-M
Georgia	Tbilisi	UG
		RMI
		TSU
Germany	Berlin	FU Berlin
		HUB
	Aachen	RWTH
	Darmstadt	GSI
	Dresden	IFW
	Frankfurt/Main	Univ.
	Giessen	JLU
	Julich	FZJ
	Kassel	Uni Kassel
	Marburg	Univ.
	Regensburg	UR
	Tubingen	Univ.
Greece	Thessaloniki	AUTH
Italy	Turin	INFN
Japan	Osaka	Kansai Univ.
Kazakhstan	Almaty	INP NNC RK
		IPT
Moldova	Chisinau	IAP ASM
Mongolia	Ulaanbaatar	NUM
Poland	Krakow	AGH
	Otwock-Swierk	NCBJ
	Rzeszow	UR
Portugal	Coimbra	UC
Romania	Bucharest	IFA
		IFIN-HH
		ISS
		UB
	Cluj-Napoca	I.N.C.D.T.I.M.
Russia	Moscow	CC RAS
		IMM RAS
		ITEP
		MEPhI
		MSU
		PFUR
		SINP MSU
		VIGG RAS
	Belgorod	BelSU
	Chernogolovka	LITP RAS
	Perm	PSU
	Protvino	IHEP
	Puschino	IMPB RAS
		ITEB RAS
		IPR RAS
		ICB RAS
	Saratov	SSU
	St. Petersburg	FIP
		PDMI RAS
	Tomsk	TSU
	Tver	TvSU
Slovak Republic	Kosice	IEP SAS
		TU
		PJSU
	Presov	PU
South Africa	Cape Town	UCT
	Pretoria	UP
Sweden	Stockholm	KTH
Switzerland	Zurich	ETH
Taiwan	Taipei	AS
Tajikistan	Dushanbe	TNU
	Khujent	KSU
USA	Argonne, IL	ANL
Ukraine	Kiev	BITP NASU
		IM NASU
	Kharkov	IERT NASU
		KFTI NASU
Vietnam	Hanoi	VNU

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