Project NICA. at the LHEP JINR. ROGACHEVSKY Oleg for MPD collaboration. ISMD 2017 September, Tlaxcala City

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1 Project NICA at the LHEP JINR ROGACHEVSKY Oleg for MPD collaboration ISMD 2017 September, Tlaxcala City

2 NICA complex Beams p,d(h)..197au79+ Collision energy s= 4-11 GeV/u (Au), (p) Beam energy (fixed target) GeV/u Luminosity: 1027 cm-2s-1(au), 1032 (p) Experiments: 2 Interaction points MPD and SPD Fixed target experiment BM@N 2/33

3 QCD Phase diagram NICA energy scan: MPD 4 < s < 11 GeV/u BM@N 2.3 < s < 3.4 GeV/u p, C,, Au

4 Current & future HI experiments Facility SPS RHIC BES II NuclotronM NICA SIS/100 (500?) LHC Laboratory CERN Geneva BNL Brookhaven JINR Dubna JINR Dubna FAIR GSI Darmstadt CERN Geneva Experiment NA61 SHINE STAR PHENIX MPD HADES CBM ALICE ATLAS CMS Start of data taking / snn < (4.5) up to 5500 Physics CP & OD CP & OD HDM OD & HDM OD & CP PDM CP critical point OD onset of deconfinement, mixed phase, 1st order phase transition HDM hadrons in dense matter PDM properties of deconfined matter snn GeV 4/33

5 NA49 energy & species scan Gazdzicki M. Gorenstein M. Acta. Phys. Pol., B30: Horn vanishing arxiv:nucl-ex/ The scaled variance of the multiplicity distribution of negatively charged hadrons in the projectile hemi-sphere 7/33

6 STAR Beam Energy Scan results High P suppression T Stephen Horvat Quark Matter 2015 Chiral Magnetic Effect Number of constituent quarks scaling Phys. Rev. C88, (2013), /33

7 STAR BES I results S. Jowzaee, Quark Matter 2017 Ridge effect 9/33

8 STAR BES I results PRL 112 (2014) The rapidity-slope of the net proton directed flow v1, dv1 /dy. This quantity is sensitive to early pressure gradients in the medium. R. Lacey, PRL 114, (2015) R 2out - R2side reflects the lifetime of the collision fireball and was predicted to reach a maximum for collisions in which a hydrodynamic fluid forms at temperatures where the equation of state is softest. 10/33

9 STAR BES I results STAR, PRL 112, (2014) The kurtosis of the event-by-event distribution of the net proton (i.e. proton minus antiproton) number per unit of rapidity, normalized such that Poisson fluctuations give a value of 1. In central collisions, published results in a limited kinematic range show a drop below the Poisson baseline around sn N =27 and 19.6 GeV. New preliminary data over a larger pt range, although at present still with substantial error bars, hint that the normalized kurtosis may, in fact, rise above 1 at lower s N, as expected from critical fluctuations.. N The grey band shows the much reduced uncertainties anticipated from BES-II in , for the 0-5% most central collisions. 11/33

10 STAR Beam Energy Scan program BES I BES II 12/33

11 NICA experiments & Physics feasibility study MPD SPD 13/33

12 NICA White Paper 14/33

13 Baryon stopping power 3FD PD M m si ul n o i at Yu.B. Ivanov, PL B721 (2013) 123 arxiv: /33

14 Femtoscopy for NICA PHYSICAL REVIEW C 96, (2017) vhlle + UrQMD model PD M Pion emission times at the particlization surface (a) and the last interactions (b) in the center-of-mass system of colliding gold nuclei at different values of snn. m si n o i at l u Ratio of the out and side radii (a) and difference of the radii squared (b) as a function of snn derived from the STAR data (0.15 < kt < 0.25 GeV/c, 0 5% centrality) and compared with the model calculations using the two EoSs. 16/33

15 global Λ polarization for MPD PD M s u m i n o i t a l

16 QCD Phase diagram Grazyna Odyniec JoP 455 (2013) STAR Eur. Phys. J. A (2016) 52: 324 PD M The dependence of T ch on μb, fitted with the Grand Canonical approach in THERMUS Model m si ul n o i at

17 MPD experiment at NICA AuAu s = 11 GeV 19/33

18 MPD solenoid yoke VHM, Vitkovice, Czech republic Iron Yoke Outer diameter 6583 mm Length 9010 mm Dist. In between poles 7390 mm Weight 727 ton 28 plates 16 T each 2 support rings 42.5 T each 2 poles 50 T each 20/33

19 MPD Time Projection Chamber TPC Item Length of the TPC Outer radius of vessel Inner radius of vessel Outer radius of the drift volume Inner radius of the drift volume Length of the drift volume HV electrode Electric field strength Magnetic field strength Drift gas Flange Membrane Field cage Gas amplification factor Drift velocity Drift time Temperature stability Number of readout chambers Segmentation in φ Pad size Number of pads Pad raw numbers Pad numbers after zero suppression Maximal event rate Electronics shaping time Signal-to-noise ratio Signal dynamical21 range Sampling rate Sampling depth Dimension 340cm 140cm 27 cm 133cm 34cm 170cm (of each half) Membrane at the center of the TPC ~140V/cm; 0.5 Tesla 90% Ar+10% Methane, Atmospheric pres. + 2 mbar ~ cm/µs; < 30µs; < 0.5 C 24 (12 per each end-plate) 30 5x12mm2 and 5x18mm < 10% < 7 khz ( Lum ) ~180 ns (FWHM) 30:1 10 bits MHz 310 time buckets 21/33

20 Time Of Flight detector mrpc prototype with a strip multigap resistive plate chamber (T1 - T2) for two mrpcs Full scale mrpc prototype with a strip 22/33

21 experiment at NICA AuAu Ebeam = 4 GeV 23/33

22 experiment at NICA ToF-400 DCH-1,2 ToF-700 ZDC 24/33

23 Deutron tracks and momentum reconstruction with Drift Chambers Deutron beam inclination at different values of magnetic field 25/33

24 physics 26/33

25 Spin Physics Detector 27/33

26 SPD Letter of Intent hep-ex arxiv: /33

27 NICA Site 29/33

28 NICA Schedule 30/33

29 Thank you for attention 31/33

30 Forward Hadron Calorimeter NA61, CBM, MPD Module assembling at INR Beam test at CERN 2 GeV Transverse size 15x15 cm2, length~160 cm, weight ~120 kg. 60 lead/scintillator sandwiches. 6 fiber/mapd 10 MAPDs/module 5 GeV 4 GeV 6 GeV 33/33

31 Phase space MPD registers on average : ~380 charged pions ~85 protons ~30 K+ in an event (central Au+Au at 8 GeV) π p K+ 34/33

32 Charged Particle ID TPC PID: Ionization loss (de/dx) Separation: e/h GeV/c π/k GeV/c K/p GeV/c 35/33

33 Tracking Low-p cutoff ~ 100 MeV for a 0.5 T magnetic field 36/33