introduction progress in nica project preparation progress in mpd project preparation

Introduction

Progress in NICA project preparation

Progress in MPD project preparation - software environment MPDROOT- activity of physics groups - End-Cap concept development- progress in R&D of detectors

SPD start up

IT infrastructure development

Conclusions JINR Scientific Council, 104 session, 25 September 2008, DubnaV.KekelidzeNICA / MPD Status Report

V.Kekelidze, Scientific Council

New strategic course of the JINR in relativistic heavy ions & particle physics endorsed by the PAC is based on: development of the home accelerator facility NICA providing relativistic heavy ions & polarized beams scientific programs at home & external accelerators including a study of various phases of strongly interacting matter,urgent topics of particle physics and spin physicsIntroductionRelativistic Heavy Ion Physics is a high priority task in many scientific centers (BNL, CERN, GSI, JINR,..) since last few decades Theoretical motivation of relativistic heavy ion study reinforcementat JINR is well founded in the works of:A.Sissakian, A.Sorin, V.Toneev, G.Zinoviev etc& others.


Heavy Ion Physics at SNN = 3-9 GeV The phase diagram in terms of the reduced energy densitythe trajectories are calculated with hybrid model open markers: QGSM steps:0.3 fm/c & 0.5 fm/c filled markers:evolution within 3D relativistic hydrodynamicsSNN = 3-9 GeV is a most promising energy regionto search for mixed phase & critical end-point


Strategic objectives of the Laboratory are construction, development & maintenance of the JINR basic accelerator complex for relativistic heavy ionsand polarized beams

relevant researches in high energy heavy ion physics, spin physics & particle physics Veksler & Baldin Laboratory of High Energy Physics

is founded on May 4-th 2008 in accordance with the JINR Member States Plenipotentiary Representative Committee decision (27-28 Nov. 2007) by the JINR Director decree N 112 of February 19th, 2008


2008 -2009 NUCLOTRON extracted beams (p, d, Li, C, ) & internal target(d beam) & polarized (||) proton targetRunning period: 2 x~ 600 h/year (~1/2 R&D for machine) efforts are making to extend Basic facility NICA development plans 2010 -2013 NUCLOTRON-M (the first stage of NICA) beams up to A ~ 200 ~ 4 GeV/u (for Au) extracted beams ~ 109 A/pulse d beam & polarized proton target (||, ) 2013 COLLIDER NICA beams: A= 1 238 (U92+), SNN = 3-9 GeV, L>1027cm-2s-1with at least two interaction points: MPD - MultiPurpose Detector (to search for mixed phase) SPD - Spin Physics Detector in (d,p) beams


NICA Project preparationLast version of CDR is available Some parameters of the facility complex are clarified and corrected

Subproject NUCLOTRON-M was reviewed by Machine Advisory Committee & passed the consideration at the PAC

Next steps:CDR revision by international MAC and preparation of TDRProject Leaders: A.Sissakian, A.Sorin, A.Kovalenko, I.Meshkov, G.Trubnikov


Progress in NICA Project preparationThe first stage NUCLOTRON-M is well advanced PAC recommended for further development Some parameters of the NICA facility complex are clarified & correctedin preparation for critical review by MAP2T super-ferric magnet R&D close to completionmass production plans - in preparation 4T magnet R&D program - in preparation all in close coop with the GSI/FAIR(also for SIS100/300)Engineering infrastructure project preparation has started(collider allocation feasibility, cost estimate etc.)


Progress in NICA Project preparationCollaborators / Subcontractors active involvement Budker Institute of Nuclear Physics (Novosibirsk) Institute of High Energy Physics (Protvino)Russian State Specialized Design Institute (Rosatom, Moscow)GSI/FAIR BNL (US)FermiLab (US)FZ Julich (Germany)& others Essential steps towards TDR !


Nuclotron (45 Tm)injection of one bunch of 1.1109 ions,acceleration up to 14.5 GeV/u max.Booster (25 Tm)2(3?) single-turn injections, storage of 3.2109,acceleration up to 50 MeV/u,electron cooling,acceleration up to 440 MeV/uCollider (45 Tm)Storage of 17 bunches 1109 ions per ring at 14.5 GeV/u,electron and/or stochastic cooling IP-1IP-2Stripping (40%) 238U32+ 238U92+Two superconductingcollider rings217 injection cyclesInjector: 2109 ions/pulse of 238U32+ at energy of 6 MeV/uNICA new working schema


NICA ring new parameters

Booster Nuclotron-M Collider Ring circumference, m215251.52251Max proton energy, MeV12 36012 360Max energy of 238U +32/92, MeV/u400 4 270 4 270Magnetic rigidity, Tm2.4 - 258.2 - 4514 - 44Bending radius, m142211Magnetic field, T0.17 1.80.37 1.641.56 4Number of dipole magnets409624Number of quadrupoles486432Magnetic field ramp time, s2.65*1.27>25dB/dt, T/s11

Collider NICA new major parameters

Ring circumference, m251Interaction points2Beta function at interaction point b*, m0.5Momentum spread (rms)0.001Bunch length, m0.3Particle number per bunch109Bunch number17Ion kinetic energy, E[GeV/u], min/max1/3.5Luminosity, L [cm-2s-1], average1027


Injection channelsCollider structure


a program of corresponding R&Ds is foreseen including ones in the framework of the experiments carried out at Nuclotron Nuclotron-Min collisions of heavy ion (over atomic mass range A = 1-238) by scanning of the energy region SNN = 1 - 9 GeV Relativistic Heavy Ion Physics at NICA


Event-by-event fluctuation in hadron productions (multiplicity, Pt etc.)

HBT correlations indicating the space-time size of the systems involving , K, p, (possible changes close to the de-confinement point)

Multi-strange hyperon production: yield & spectra (the probes of nuclear media phases) Directed & elliptic flows for various hadronsMPD experiment first stage targetsthe effects to be studied with various ion interactionson energy & centrality scanning: Leptonic probes - feasibility under studydedicated experiment under consideration


MPD Project PreparationThe first LoI version is available MPD conceptual design is proposed with an acceptance close to 4p

Alternative solutions are indicated for some of the subdetectors taking into account possible sharing of commitments by potential collaborators

organization of the corresponding Collaboration is in progressThe MPD Collaboration Joint Institute for Nuclear Research

Institute for Nuclear Research, RAS, RF

Bogolyubov Institute for Theoretical Physics, NAS, Ukraine

Nuclear Physics Institute of MSU, RF Institute of Allied Physics, AS, Moldova new members are welcome to joinA consortium was organized involving GSI, JINR & other centers, for the IT module development


development of theoretical models & corresponding generatorsA.Sorin, V.Skokov, V.Toneev, I.Mandjavidze, J.Musulmanbekov et al. directions of activityFurther Progress in Project Preparationmaintenance & development of software environment - MPDROOTgroup of O.Rogachevsky Detector concept optimization for various physics taskscharged hadron production- D.Arkhipkin et al., 0 and hyperon production A.Kechechyan, M.Tokarev et al.leptonic observables A.Olchevsky, I.Tyapkin et. al.other groups leaders to be identified End-Cap concept developmentO.Rogachevsky, V.Golovatyuk, A.Zinchenko, D.Arkhipkin, V.Peshekhonov, Yu.Kiryushin et al.


beam test facility preparation plans under discussionE.Strokovsky, G.Trubnikov, A.KovalenkoIT infrastructure development Yu. Potrebenikov et al.management program & corresponding software preparation Yu.Potrebenikov, D.Madigozhin, N.Molokanova MPD allocation (+ cost estimates), engineering & harness designs Russian State Specialized Design Institute (Rossatom, Moscow)N.Agapov, A.Shabunov,V.Borisovdetector R&D in progress in many groupsFurther Progress in Project Preparationdirections of activity


Progress in MPD Project PreparationDevelopment of the MPDROOT software: - general framework GEANT-4 based simulationdetector geometrytrack reconstructionO.Rogachevskysgroup


TPCDetector geometry in MPDROOTTOF (RPS based)


Event display (geometry + selected tracks)


mass resolution & spectraPhysic tasks first stepsLambda reconstruction A. Kechechyan et al.generated & reconstructed 1000 decays in Au+Au at SNN = 9 GeV = 11 MeV/c2


yields & particle ratioscharged hadron productionK/ ratio D. Arkhipkin et al.Physic tasks first steps


Electromagnetic observables A.Olchevsky, I.Tyapkin, etc. Physic tasks first steps


MPD End-Cap conception development


Straw Tracker geometry (MPDROOT)ST barrelECT - Straw Wheels (60 layers in total)


to enlarge the acceptance over pseudo rapidity region End-Cap elements have been added - ECT (Straw Wheels) TOF (RPS chambers)End-Cap concept development: ECTA.Zinchenko


Energy resolution 2.5% /E good identificationTime resolution 80ps /E TOF for charged particle id suppression of pile-up & electronic noise A.Olchevsky, I.Tyapkin, etc. End-Cap concept development: ECAL


R&D progress in RPC modules for TOF10-gap RPC module prototype assemblinginstallation of the fish-line coiling on the external readout boardinstallation of the glass electrode with the conductive paintfish-line isusing as a spacerassembled prototype with the fast preamp developed by ALICE on the base of NINO chipV.Golovatyuksgroup


R&D progress in Segmented Straw tracking detectors achieve low occupancy & safer operation in harsh environmentsThe prototype is developed for the beam testing with: Double Layer Detector (anode high-voltage) FEE (low-noise amplifiers) DAQ (interface PCI-Express & 64-channels TDC)Double Layer Detector contains:2x48 straws ( 4 mm; L = 40cm)400 segments (L ~ 10cm/segment)FEE density: FEE is 1 ch. / 1mmV.Peshekhonovsgroup


R&D progress in ITConsortium: GSI, JINR, INP MSU, SESRTIIE (Kharkov), IHEP, Saint-Petersburg Uni., Saint-Petersburg Radium Inst., ITEP Double side silicon micro strip sensor (15x15mm2, 50um strips, 285 um thickness, 256 channels) mounted on a base plate with super low mass cables for PS & readoutYu.Murin, V.Nikitin, et al.


Source of Polarized Deuterons (CIPIOS based) for Nuclotron-M / NICA complexwill provide 1010 d /pulse from Nuclotron-MSpin PhysicsSpin physics of few nucleon system A.Kovalenko

- pp elastic scattering (analyzing powers & correlation coefficients) meson production in pp near the thresholdpd (3-nucleon forces, analyzing powers & correlation coefficients)MPPT (movable ptarget) for f.t. experimentsNucleon Spin structure A.Nagaitsev, I.SavinO.Shevchenko COMPASS (SPS CERN), HERMES (Desy)

SPD at NICA (pp, pd polarized, S > 20 GeV) LoI in preparation


*Working Group started preparation the spin physics program to operate with polarized pp, pD & DD beams.Spin Physics at NICAPreliminary topics:

Matveev-Muradyan-Tavkhelidze-Drell-Yan (MMTDY) processes with L&T polarized p & D beams extraction of unknown (poor known) PDF PDFs from J/y production processes Spin effects in baryon, meson and photon productions Spin effects in various exclusive reactions Diffractive processes Cross sections, helicity amplitudes & double spin asymmetries (Krisch effect) in elastic reactions Spectroscopy of quarkoniums with any available decay modes Polarimetry


*Preliminary scheme ot the SPD experimental set-up

Requirements to the detector :Set-up for muon pairs detection is also under considerationConceptual design for Spin Purpose Detector (SPD)A.Nagaitsev, I.Savin, O.Shevchenko, etc.4 p geometry to enlarge MMTDY event statistics minimal X0 effective detection of lepton pairsgood angular resolution very important for azimuthal spin asymmetries measurements in the wide kinematical region



toroid magnet system (Bdl ~ 0.4Tl m) minor influence on beam polarization transverse field matching the momentum no fringe field Silicon or MicroMega (inner tracking) Drift chambers or straw (for tracking) Cherenkov counter (for PID & trigger) EM calorimeter Trigger counters EndCap detectorsSet-up for muon pairs detection is also under considerationSPD main parts


*Development of IT InfrastructureGroup of Yu.Potrebenikov


The strategic plans of JINR in HEP is targeting tothe developments of home accelerator facility & corresponding scientific program

NICA / MPD project provides good opportunity for the frontier experimental researches at JINR in the forthcoming decade

New laboratory - LHEP is founded to concentrate efforts for realization of these plansConclusions


Preparation of accelerator complex NICA & MPD projects are well progressing

New SPD project preparation has started

Large cooperation in this field of researchis established with many Russian & world centers:IHEP, INR, Budker INP, INP MSU, GSI/FAIR, BNL, CERN, Fermilab, Kharkov TIIE & othersthe collaboration is growingConclusions


Thank you for your patience


spare


Collider (45 Tm)Storage of 17 bunches 1109 ions per ring at 14.5 GeV/u,electron and/or stochastic cooling IP-1IP-2Stripping (40%) 238U32+ 238U92+Two superconductingcollider rings217 injection cyclesInjector: 2109 ions/pulse of 238U32+ at energy of 6 MeV/uNICA working schemaBooster (25 Tm)2(3?) single-turn injections, storage of 3.2109,acceleration up to 50 MeV/u,electron cooling,acceleration up to 440 MeV/u


QGP formation andhydrodynamic expansionHadronisation,hadronic phase & chemical freeze-out

Chemical freeze-out finish of inelastic interactions;Kinetic freeze-out finish of elastic interactions.___________________________________ *) freeze-out here means to get rid

Start of the collisionpre-equilibriumHadronic phase &kinetic freeze-out


1. Search for mixed phase of strongly interacting matterBarionic chemical potential


*Elliptic flow of central fireball matterWhat to look for ?

One has to measurethe ellipticity parameter (Etotal) = ps/py 1. Search for mixed phase of strongly interacting matter


34 injection cycles of 1109 ions 238U92+ per cycle1.71010 ions/ring 3.5 GeV/u

400 MeV/u

100(50?) MeV/u 6 MeV/u

470 keV/u

25 keV/u 2s 0.4s 2s 3s 4.5s 153 sKRION RFQ RFQ DTL Booster Nuclotron ColliderEion/ATime Table of The Storage Process238U32+2-3 cyclesof injection,electroncooling (?)electroncoolingstripping to238U92+Bunch compression


Twin magnets for NICA collider ringsTwin dipoles Twin quadrupoles 1 Cos coils, 2 collars, 3 He header, 4 iron yoke, 5 thermoshield, 6 outer jacket


Injection channelsCollider structure


HADES & CBM A.Malakhov, Yu.Zanevsky, Yu.Murin at SIS 18, 100/300 GSI Relativistic Heavy Ion Physics at Nuclotron & at higher energiesFAZA at Nuclotron S.Avdeev, V.Karnaukhoveffects of phase transition in thermal multifragmentationNA49 -> NA61 at SPS CERN G.Melkumov

STAR at RHIC BNL R.Lednicky, Yu.Panebratcev

ALICE at LHC CERN A.Vodopianov


TPC geometry (MPDROOT)


TOF (RPC based) geometry (MPDROOT)


ZDC geometry (MPDROOT)


Event display (geometry) under MPDROOT


End-Cap concept development: ECTComparison of two versions of End-Cap tracking: TPC alone TPC + ECT (Straw Wheels) + ETOF

at various limits on momentum resolution



toroid magnet system (Bdl ~ 0.4Tl m) minor influence on beam polarization transverse field matching the momentum no fringe field Silicon or MicroMega (inner tracking) Drift chambers or straw (for tracking) Cherenkov counter (for PID & trigger) EM calorimeter Trigger counters EndCap detectorsSet-up for muon pairs detection is also under considerationSPD main parts


Operation mode

Collider (pp,pd, p(d)A) fix target (gaseuos)spp = (12+12) GeV/c

with different combination of polarized p(d) & unpolarized p,d,ASPIN at NICAIntermediate energy (fix target):- pp elastic scattering (analysing powers & correlation coefficients) meson production in pp near the thresholdpd (3-nucleon forces, analysing powers & correlation coefficients)

High energy (collider):Transversity distribution (Drell-Yann & J/)Spin transfer to hyperons


COMPASS & J-PARK can not provide direct measurements (both beam & target to be polarized)

PAX plans to access transversity via measurement of double polarized asymmetry in Drell-Yan process with antiprotons problematic to get intensive polarized beam of antiprotons

RICH - different kinematic region covering only small x

* ) Part related to the LHE budget onlyJINR budget direct grants , other direct sources & external sources

Obligations in IREN (have to be completed in 2008), Activities within GSI-JINR & CERN-JINR Accelerator research programs & corresponding R&D in accelerator physics are not includedparticipation in CBM (within the JINR-BMBF Agreement) not included as well


Energy + TransmutationM.KrivopustuvPreliminary results of nuclei production observed in the samples of I (129) Np(237) R(Ares) the yield out of the samples exposed by protons & deuterons


Leading Twist Distribution Functions f1(x)h1(x)q(x) spin averaged (well known)Dq(x) helicity diff. (known)dq(x) helicity flip (unknown)g1(x)


V.KekelidzeV.KekelidzeV.KekelidzePreparation V.KekelidzePreparation V.KekelidzePreparation V.KekelidzePreparation V.KekelidzePreparation V.KekelidzePreparation V.Kekelidze*V.Kekelidze* V.Kekelidze* V.KekelidzeV.KekelidzeV.Kekelidze* V.KekelidzeLow energy region llXAt NICA by energy variation and with asymmetrc energy beams h can be measured in a wide kinematicRange, like as in PAX Another possible mode J/ production: pp->J/->llXIt is interesting because DY it is quark- antiquark fusion and J/ it is gluon-gluon fusion AND(!) at fixed Q2quark(x)/gluon(x)~x -> they dominant in different kinematical regions*V.Kekelidze