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Introduction on the NICA project

Zebo Tang (唐泽波)

University of Science and Technology of China (USTC)

State Key Lab. of Particle Detection & Electronics, MoST

Workshop on “Flow, Jet Quenching and Strong Coupling Physics”

Dec. 17-19, 2016, Huzhou University, Huzhou, China

Thanks to Itzhak Tserruya, Golovatyuk Slava,

Fuqiang Wang, V. Kekelidze for the materials

Nuclotron based Ion Collider fAcility

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 2

Synchrotron Nuclotron is in operation since 1993 at JINR at Dubna

NICA accelerator complex is under construction (started at 2013)

R=231.5 m

Zebo Tang (USTC)

NICA and Nuclotron beams

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 3

Heavy ion colliding beams up to 197Au79+ + 197Au79+ at:

sNN = 4 - 11 GeV , Laverage= 1×1027 cm-2s-1

same or higher Laverage for lighter ions

Polarized beams of protons and deuterons in collider mode:

p+p spp = 12 - 26 GeV Lmax ≈ 1×1032 cm-2s-1

d+d sNN = 4 - 13.8 GeV

Nuclotron extracted beams of ions and polarized protons and

deuterons for fixed target experiments:

Li - Au = 1 - 4.5 GeV/u ion kinetic energy

p = 5 - 12.6 GeV kinetic energy

d = 2 - 5.9 GeV/u ion kinetic energy

Zebo Tang (USTC)

NICA Complex

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 4

NUCLOTRON

0.6-4.5 GeV/u

PS and

LU-20 (5MeV/u)

Accelertor complex LHEP

existing

In preparation

KRION-6T+HILac (3MeV/u)

Booster

(600 MeV/u)

MultiPurpose

Detector - MPD

Transfer lines

Zebo Tang (USTC)

NICA Physics

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 5

NICA NICA

QCD matter at NICA:

• Dense baryonic matter

• Energy covers Critical point search and Onset of deconfinement

• Complementary to STAR-BES, CBM and CERN experimentsZebo Tang (USTC)

Present and future HI machines

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 6

2018

2022?

20??

2017

SIS-18 (GSI)

NICA-BM@N (JINR)

SPS (NA-49/61, CERN)

STAR

(BNL)

Booster (JINR)

NICA-MPD (JINR)

SIS-100 (FAIR)

SIS-300 (FAIR)

2 4 6 8 20 40 60 80

for Au+Au1 10 102√SNN, GeV

Fixed target:

L-limited by

detectors

Colliders:

scale of L,

in cm-2s-1

1027

1025

1023

BES

NA60+? 20??

2020

LHC (CERN)

Zebo Tang (USTC)

Compare to other facilities

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 7

NICA/MPD (2020)

STAR F.T.

NA-61/SHINE

HADES

CBM

STAR BES II

Inte

ract

ion

rat

e [

Hz]

NICA/BM@N I

NICA/BM@N II

SIS-100 FAIR (2022+)

Collision energy √sNN [GeV]

Zebo Tang (USTC)

2 3 4 5 6 8

Current status of NICA accelerator

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 8

• Design phase completed.

• Technical solutions approved by MAC.

• Contract for the construction of the collider building signed a year

ago on September 15, 2015 with STRABAG.

Civil construction has started.

• Superconducting magnets serial production has started.

Zebo Tang (USTC)

Civil construction and Magnet production

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 9

http://nucloweb.jinr.ru/nucloserv/205corp.htm

Zebo Tang (USTC)

MPD (Multi-Purpose Detector)

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 10

• 9 m long, 6m diameter

• Low material budget

• Good tracking and pid

• Tracking (TPC):

up to |h|<2, 2π in azimuth

• PID (TOF, TPC, ECAL):

hadrons, e, g

• Event characterization

(FHCAL):

centrality & event plane

Stage 1: TPC, TOF, ECal, FHCal and FFDStage 2: IT and Endcaps

(tracker, TOF, ECal)

Technical Design Reports:http://nica.jinr.ru/files/mpd_tdr.htm

Zebo Tang (USTC)

SC solenoid and TPC

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 11

Superconducting solenoid:

• 0.66 T, ~900 tons

• Contract signed with ASG superconductors (Genova, Italy)

Sketch of TPC 3400 Ø2800

12 Readout

chamber

HV-electrode

~ 28 kV

~ 110 000 readout channels

E E

Time Projection Chamber:

• 3.4m long, R=0.27-1.4 m

• Basic R&D finished, assembly workshop in preparation

Zebo Tang (USTC)

Time-of-Flight system

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 12

Forward Fast Detector

Active area: ~56 m2

# channels: 13824

MRPC

Zebo Tang (USTC)

Calorimetry

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 13

ECAL – shashlik type

ECal sector

ECal module:

25 kg

Module tested at CERN and DESY

𝜎 𝐸 = 5%𝐸⊕ 2%

Forward HCal

σ(E)/(E) = 53%/√E(GeV) +10%

Test fulfills required resolution

Trigger

Centrality

Event plane

Zebo Tang (USTC)

MPD performances

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 14

Momentum resolution

Efficiency vs pT Particle id (dE/dx and ToF)

Particle id (dE/dx)

Zebo Tang (USTC)

< 2% @ pT<2 GeV/c

Down to 0.1 GeV/c

Hyperons and hypernuclei

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 15

𝜦𝟑𝑯

10510 weeks

Zebo Tang (USTC)

Electron and dielectron

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 16

Hadron suppression

up to 10-5

dE/dx and TOF

σω≈14 MeV/c2

Particle Yields Decay mode

BR Effic. % Yield/1 w

4p y=0

r 31 17 e+e- 4.7 . 10-5 35 7.3 . 104

w 20 11 e+e- 7.1 . 10-5 35 7.2 . 104

j 2.6 1.2 e+e- 3 . 10-4 35 1.7 . 104

Yields, central Au+Au at √sNN = 8.8 GeV

Zebo Tang (USTC)

BM@N (Baryonic Matter at Nuclotron)

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 17

Fixed target experiment

using Nuclotron beams

Large aperture magnet

(~1m gap between poles)

MPD stage I

BM@N plan

Technical runs with d, Li, C

2016 – 2017;

Physics run (I stage) with Kr

int rate 20 kHz

End of 2017;

Physics run (II stage) with Au

int rate 50 kHz:

2019

Zebo Tang (USTC)

BM@N performances

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 18

d+C 4 AGeV, 500K events

UrQMD & DCM-QGSM, Au+Au, Ekin.= 4.5A GeV 20 KHz trigger

900K central events 7.5M X- in 1 month

Technical run

Physics run

Zebo Tang (USTC)

NICA overall schedule

Huzhou QCD workshop, Huzhou U., 12/17-19, 201619

2015 2016 2017 2018 2019 2020 2021 2022 2023Injection complex

Lu-20 upgrade

HI Source

HI Linac

Nuclotron

general development

extracted channels

Booster

Collider

startup configuration

design configuration

BM@N

I stage

II stage

MPD

solenoid

TPC, TOF, Ecal (barrel)

upgraded end-caps

Civil engineering

MPD Hall

SPD Hall

collider tunnel

HEBT Nuclotron-collider

Cryogenic

for Booster

for Collider

running

time

Zebo Tang (USTC)

NICA Physics with MPD and BM@N

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 20

Bulk properties, EOS- particle yields & spectra, fermtoscopy, flow

Search for QCD Critical Point

- event-by-event fluctuations & correlations

Onset of phase transition:

- deconfinement (QGP thermal radiation)

- In-medium modification of hadron properties:

r, w, f e+e- and continuum m < 3 GeV/c2

Enhanced strangeness production

Chiral Magnetic (Votical) effect

- L polarization

Strangeness in nuclear matter

- hypernuclei

Systematic study of pp, pA and AA

MPD

BM@N

Zebo Tang (USTC)

Anything to do with us?

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 21

• 2010/06, NICA people from JINR visited Tsinghua University

and USTC

• 2011/02, we visited JINR for MRPC beam test

• 2016/09, Itzhak Tserruya gave seminars at Tsinghua University

and USTC

• 2016/11, Fuqiang and I visited JINR

Zebo Tang (USTC)

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 22Zebo Tang (USTC)

Our view of NICA

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 23

Photo taken at the main

gate of JINR, Dubna

Dec. 1, 2016

Civil construction

Zebo Tang (USTC)

Fuqiang at BM@N

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 24Zebo Tang (USTC)

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 25

MPD MRPC Assembly

MPD detector

beam test facility

Magnet assembly & test

Zebo Tang (USTC)

A letter of intent written by

Fuqiang Wang sent to MoST

of China after our visit

Summary

Huzhou QCD workshop, Huzhou U., 12/17-19, 2016 26

• NICA facility has the potential for competitive research in the

field of dense baryonic matter

• NICA complex construction is in good shape

• Accelerator construction in progress

• Construction of both detectors, BM@N and MPD, is

progressing well

• JINR is looking for more international collaborations

• Anyone interested in is welcome to contact Prof. Fuqiang Wang

or Zebo Tang

Zebo Tang (USTC)