1. Status of the NICA project at JINR
V.Kekelidze, A.Kovalenko, R.Lednicky, V.Matveev,
I.Meshkov, A.Sorin, G.Trubnikov Joint Institute for Nuclear Rsearch
Dubna
NICA
Volga
river
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

2. V.Kekelidze, ICHEP-2014, Valencia
NICA (Nuclotron based Ion Colider fAcility)
– the flagship project in HEP
of Joint Institute for Nuclear Research (JINR)
Main targets of “NICA Complex”:
- study of hot and dense baryonic matter
- investigation of nucleon spin structure,
polarization phenomena
- development of accelerator facility
for JINR providing
intensive beams of relativistic ions from p to Au
polarized protons and deuterons
with max energy up to
√SNN= 11 GeV (Au79+) and =27 GeV (p)
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

3. V.Kekelidze, ICHEP-2014, Valencia
Synchrotron Nuclotron, in operation since 1993
– based on superconducting magnets developed in Dubna
Nuclotron provides accelerated proton and ion beams (up to Xe42+, A=124) with energies up to 6 AGeV (Z/A = 1/2)
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

4. KRION-6T+HILac (3MeV/u)
Complex NICA
Collider basic parameters:
√sNN = 4-11 GeV; beams: from p to Au; L~1027 cm-2 c-1 (Au), ~1032 cm-2 c-1 (p)
Collider NICA
(1-4.5 GeV/u, C=503 m)
KRION-6T+HILac (3MeV/u)
Booster
(600 MeV/u)
MultiPurpose
Detector - MPD
SPD
MPD
Accelertor complex LHEP
existing
with fixed targets
Experiments
bld. 205
NUCLOTRON GeV/u
PS and
LU-20 (5MeV/u)
In preparation
Комплекс свехпроводящих ускорителей NICA и экспериментальных установок представлен на этом слайде.
Синим показаны существующие объекты:
линак на 20 МэВ,
Нуклотрон
Зона для экспериментов с фиксированными мишенями на выведенных из нуклотрона пучках.
Красным – то, что Предстоит построить и запустить:
новый линак для тяжелых ионов;
бустер – промежуточный этап ускорения для достижения большей интенсивности;
коллайдер с периметром около 500 м;
установку для экспериментов с фиксированной мишенью;
установку MPD на первом пересечении пучков коллайдера и
установку SPD на втором пересечении .
Коллайдер рассчитан на диапазон энергий от 4 до 11 ГэВ для ускорения золота с рекордной для тяжелых ионов светимостиью 1027 см-2 с-1.
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

5. NICA – basic milestones
The project of NICA complex is approved
The 1-st stage of Nuclotron modernization is completed
10 runs have been carried out are in – 2014
The projects: approval – completion
accelerator complex – 2019
MPD (MultiPurpose Detector) – 2019
experiment with fixed target (I stage)
The project preparation for Spin Physics Detector (SPD)
is in progress
Основные этапы создания комплекса NICA
в 2010 году утвержден проект NICA и завершен I этап модернизации Нуклотрона, начаты работы по ускорительному комплексу и многоцелевому детектору MPD (MultiPurpose Detector) , которые завершатся в 2019.
С 2012 года готовится эксперимент с фиксированной мишенью - детектор (I этап),первые результаты с которого ожидаются в 2017
- Идет подготовка проекта Spin Physics Detector (SPD)
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

6. V.Kekelidze, ICHEP-2014, Valencia
Status of the accelerator complex
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

7. Krion-6Т (Electron String Ion Source)
Project parameters: magnetic filed up to 6.0 Т, electron energy up to 15 keV
Test bench in 2013:
B= 5.4 T reached in a robust regime;
produced beams: Au30+÷ Au32+, 6108 ppp, repetition rate 50 Hz
preparation for the run at the Nuclotron - May 2014
Krion-6T at LU-20, HV platform (Run #50)
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

8. V.Kekelidze, ICHEP-2014, Valencia
HILac: high current (10 mA) heavy ion Linac,
the first Linac with transistor RF amplifier
Design and fabrication by “BEVATECH OHG” Germany, Offenbach/Main,
to be delivered at JINR in 2015
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

9. V.Kekelidze, ICHEP-2014, Valencia
RFQ Tank(2014 May, 98% readiness )
Gaps along cavity IH2
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

10. Stochastic Cooling System
Spectrum analyzer
SCS at Nuclotron
- is a prototype
for the NICA Collider:
W= 2-4 HGz,
P = up to 60 W
Collaboration:
JINR-IKP FZJ-CERN pW
Coasting beam
Ring slot-coupler RF structure (design FZJ) CF
span 200 MGz pW
Die Forschungszentrum Jülich GmbH (FZJ)
Bunched beam CF
span 200 MGz
Experimental results (2013):
stochastic cooling of the carbon (C6+) beam, E = 2.5 GeV/u
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

11. Electron cooling system for Collider
Design drawing of the HV tank
E_max, MeV
2.5
Cooling section length, m
6.0
Electron beam current, A
0.5-1
Electron beam radius, cm 1
B field at cooling section, T
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

12. V.Kekelidze, ICHEP-2014, Valencia
The Booster
Booster synchrotron: C = 211m,
25 T*m, 600 MeV/u for Au31+
ultra high vacuum, electron cooling
Dipole SC magnet
Synchrophasotron yoke
Quadrupole SC magnet
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia 12

13. V.Kekelidze, ICHEP-2014, Valencia
The Collider
45 T*m, 4.5 GeV/u for Au79+
SPD
Ring circumference, m
503,04
Number of bunches 22
r.m.s. bunch length, m
0,6
b, m
0,35
max. Ion Energy, Gev/u
4,5
r.m.s. Dp/p, 10-3
1,6
IBS growth time, s
2500
Peak Luminosity, cm-2 s-1
1x1027
Intra- Beam Scattering (IBS)
MPD
Double aperture magnets:
dipole & quadrupole
prototypes
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

14. Magnet assembly workshop at LHEP JINR
~ 450 SC magnets will be assembled & tested in the workshop
for NICA
& SIS-100 FAIR
Starts production in 2014
the cable machine
area for SC coil fabrication
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

15. JINR cryogenic complex
Technical design project is in the final stage:
new helium liquefier-plant.
The cooling power will be doubled
up to 8 4.5K with new plant;
2 new screw compressors
are under production
The bld. 32 will be reconstructed
to accommodate the new Cryo Complex
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

16. MultiPurpose Detector (MPD) Baryonic Matter at Nuclotron (BM@N)
Experiments at NICA:
MultiPurpose Detector (MPD)
at the Collider
and
Baryonic Matter at Nuclotron
at extracted Nuclotron beam
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

17. V.Kekelidze, ICHEP-2014, Valencia
Physics
QCD matter at NICA :
Highest net baryon density
Energy range covers onset of deconfinement
Complementary to the RHIC/BES, FAIR
and CERN experimental programs
NICA
FAIR & NICA
Bulk properties, EOS - particle yields
& spectra, ratios, femtoscopy, flow
In-Medium modification of hadron properties
Deconfinement (chiral), phase transition at high rB - enhanced strangeness production
QCD Critical Point - event-by-event fluctuations & correlations
Strangeness in nuclear matter - hypernuclei
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

18. Expected region of phase transition at max baryonic density
Present and future HI machines
Fixed target:
L-limited by
detectors
Colliders:
scale of L,
in cm-2s-1
Expected region of phase transition at max baryonic density
SIS-18 (GSI)
Nuclotron-M (JINR)
SPS (NA-49/61, CERN)
AGS (BNL)
RHIC (BNL)
Booster (JINR)
NICA (JINR)
SIS-100 (FAIR)
SIS-300 (FAIR) 2 4 6 8 20 40 60 80
for Au+Au 1 10
102
20??
1027
1025
1023
2019
2019
2017
BES
in operation
√SNN, GeV
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

19. NICA White Paper – International Effort
Statistics of White Paper Contributions
111 contributions:
188 authors from 70 centers in 24 countries
Indicates wide international interest
to the physics at MPD &
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia 19

20. V.Kekelidze, ICHEP-2014, Valencia
MPD detector for Heavy-Ion NICA
FFD
Tracking: up to |h|<2 (TPC)
PID: hadrons, e, g (TOF, TPC, ECAL)
Event characterization:
centrality & event plane (ZDC)
Stage 1: TPC, TOF, ECAL, ZDC, FD
Stage 2: IT + Endcaps (tracker, TOF, ECAL)
Superconducting solenoid:
high level (~ 10-4) of magnetic
field homogeneity
B0=0.66 T
Correction coils
(warm)
Status:
technical design – completed;
survey for producers
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

21. V.Kekelidze, ICHEP-2014, Valencia
TPC- technical project approved, fabrication stage
Dia. =3000 mm, L = 3400 mm, FEE = ch, dp/p < 2%
FEC-64 prototype
(ALTERA FPGA, ALTRO, PASA chips)
Cylinder C3 manufactured in Dec. 2013
Cylinder C2, preparation for vacuum tests
R140 cm, L=3.4 m
4 mm thickness
0,1 mm precision
27 cm, l=3.4 m
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

22. V.Kekelidze, ICHEP-2014, Valencia
Time of Flight system (TOF)
Fast Forward Detector (FFD):
production stage
mRPC – TDR has been prepared,
ready for mass production
Provides: T0 for TOF, beam adjustment & collision L0-trigger
Zhu Weipinga, Wang Yi, Feng Shengqin, Wang Jingbo, Huang
Xinjie, Shi Li, V. Babkin, V. Golovatyuk, M. Rumiantсev,
G. Eppley, T. Nussbaum, NIM A 735, 277–282, 2014
The achieved time resolution is better than required
required efficiency,
rate capability
& time resolution
are reached
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

23. Calorimetry ECAL – TDR - in preparation Zero Degree Calorimeter (ZDC):
TDR stage
L ~35 cm (~ 14 X0), Pb+Scint. (4x4 cm2) read-out: WLS fibers + MAPD
ZDC coverage: <|h|< 4.8
Energy resolution % / √E
Time resolution psec / √E
Pb-scintillator sampling (5l)
Read-out: fibers+ AvalanchePD
σ(E)/(E) = 55%/√E(GeV) +2%
+16%/ 4√E(GeV)
ZDC provides required resolution
Preparation for tests with electron beams at DESY (December’13)
V.Kekelidze, ICHEP-2014, Valencia
3 July 2014

24. V.Kekelidze, ICHEP-2014, Valencia
MPD performance for dileptons
PID
σω≈14 MeV/c2
Hadron suppression
up to 10-5
Yields, central Au+Au st √s = 8.8 GeV/u
Particle
Yields
Decay mode BR
Effic. %
Yield/1 w 4p
y=0 r 31 17
e+e- 35 w 20 11 j
2.6
1.2
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

25. V.Kekelidze, ICHEP-2014, Valencia
MPD
PID
P = 1 GeV/c p d
3He p-
Hypernuclei production
enhanced at high
baryon densities (NICA)
Hypertritons
3ΛH → 3He + π –
3ΛH → p + d + π -
~ ΛH are expected
for 10 5A GeV
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

26. V.Kekelidze, ICHEP-2014, Valencia
Beam
Nuclotron beam intensity (particle per cycle)
Current
Ion source type
New Injector booster p
31010
Duoplasmotron
1 ÷ 5e1012 d
51010
--- ,, ---
4He
8108
0.5 ÷ 1e1012 d
2108
SPI
0.5 ÷ 1e1010
7Li
Laser
1÷ 5e1011
11,10B
1109,8
12C
1109
1÷ 2e1011
24Mg
2107
14N
1107
ESIS (“Krion-6T”)
1÷ 5e1010
40Ar
0.5 ÷ 2e1011
56Fe
2106
1 ÷ 5e1010
84Kr
1104
0.5 ÷ 1e109
124Xe
197Au -
1e109
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

27. V.Kekelidze, ICHEP-2014, Valencia
(Baryonic Matter at Nuclotron): the 1st stage
Collaboration of scientific centers:
INR, SINP MSU, IHEP + S-PSUniversity
(Russia);
GSI, Frankfurt U., Gissen U. (Germany):
+ CBM-MPD IT-Consortium,
schematic view
Physics:
in-medium effects
for strangeness
& vector mesons
hyperon production
hadron femtoscopy
electromagnetic probes (optional)
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

28. GEM station tracking 12 GEM stations: modernized magnet СП-41
1-4 stations strip pitch 0.4 мм
5-12 stations мм
strip angles for odd stations: 0, +15∘
modernized magnet СП-41
area prepared for detector allocation
L -> p+ p-
momentum resolution
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

29. SPD (Spin Physics Detector) at NICA
Collider provides both:
transversally & longitudinally
polarized p & d
with energy up to √S = 27 GeV
The issues to be studied:
► MMT-DY processes
► J/Y production processes
► Spin effects in inclusive
high-pT reactions
► Spin effects in one and two
hadron production processes
► Polarization effects in
heavy ion collisions
The Collaboration is forming
Project is under preparation
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia
A.P.Nagaytsev, SPIN-2010, October 1, Juelich 29 29

30. V.Kekelidze, ICHEP-2014, Valencia
Concluding remarks
NICA complex has a potential for competitive research
in the fields of dense baryonic matter
and spin physics
Construction of the accelerator complex and its elements
are in progress
Constructions of both detectors & MPD
are progressing as well
The SPD project is in preparation
The international collaboration around the NICA is growing
New partners are invited to join NICA
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia

31. V.Kekelidze, ICHEP-2014, Valencia
Thank you!
3 July 2014
V.Kekelidze, ICHEP-2014, Valencia