Introduction Physics Motivation – White Book NICA Concept Collaboration MPD concept

10-12 February 2010 V.Kekelidze, Srong Interactions in XXI, Mumbai 1

Status of the Status of the NICANICA / / MPDMPD Project Project at at

JJoint oint IInstitute for nstitute for NNuclear uclear RResearch (esearch (JINRJINR)) Dubna

Introduction

Physics Motivation – White Book

NICA Concept

Collaboration

MPD concept

Working Groups activity

Time Schedule & competitivenes

Conclusions

V.Kekelidze


10 GeV Synchrophasotron put in operation in 1957

High Energy Machines at JINR, Dubna the Laboratory of High Energy Physics

the first superconducting accelerator for relativistic ionsNUCLOTRON launched in 1993

Introduction Introduction

3

Project NICA (Nuclotron based Ion Collider fAcility)

MPD ((((MMulti ulti PPurpose urpose DDetector) etector) is dedicated to

study of hot & dense baryonic matter and

development of the home accelerator facility providing relativistic heavy ions & polarized beams

all these allow to start a new strategic course of JINR

towards the frontier research in the relevant fields

of high energy physics

Introduction Introduction

10-12 February 2010 V.Kekelidze, Srong Interactions in XXI, Mumbai

Relativistic Heavy Ion Physics became a high priority task in many

scientific centers (BNL, CERN, GSI, JINR,..) since last few decades


Phase diagram for strongly interacted matter

NICA NICA

LE-RHIC scan LE-RHIC scan

Round Table IV & the NICA White Paper

JINR Dubna

Lebedev Institute, Russia

Kurchatov Institute, Russia

St.Petersburg SU, Russia

ITEP, RussiaLBNL, USA

Ohio SU, USA

University of Illinois, USA

BNL, USA

INR, Russia

University of Barselona, Spain

University of Florence, Italy

University of Cape Town, South Africa

INFN, Italy

University of Giessen, Germany

National Laboratory of Heavy Ion Accelerator, China

Institute of High Energy Physics, ChinaVariable Energy Cyclotron Centre, India

Jan Kochanovski University, Poland

University of Frankfurt, GermanyUniversity of Coimbra, Portugal

Wayne SU, USA

BITP, Ukraine

Tel Aviv University, Israel

Weizmann Institute, IsraelUniversity of Catania, Italy

Mateja Bela University, SlovakiaInstitute of Applied Science, Moldova

GSI, Germany

MEPhI, Russia

39 scientific centers39 scientific centers 15 Countries (8 JINR members)15 Countries (8 JINR members)inin

University of Oslo, Norway

INP MSU, Russia

University of Bielefeld, Germany

8866 authors authors fromfrom

Tsinghua University, Beijing, China

SISSA, Italy

University of Trento, Italy

Arizona State University, USA

Wroclav University, Poland

Los Alamos National Laborator 9 September 2009

10-12 February 2010 5V.Kekelidze, Srong Interactions in XXI, Mumbai

6

Physics tasks for MultiPurpose Detector

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

HBT correlations indicating the space-time size of the systems

involving π, K, p, Λ directed & elliptic flows for various hadrons multi-strange hyperon production:

yield & spectra (the probes of nuclear media phases) photon & electron probes search for P- & CP violation as a charge asymmetry


should be studied for different ions (from p to Au) by scanning in b & energy (in the range SNN = 4 - 11

GeV/u)

MMT-DY 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 & 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

Polarimetry


Physics tasks for Spin Physics Detector

8

NICA working schemaNICA working schema

Boosteracceleration100 МeV/u

600 МeV/u

Nuclotron

1.1×109 ions14.5 GeV/u (max)

IP-1 IP-2

striping (80%) 197Au32+ 197Au79+

Two superconducting storage rings of

the collider

2х17 injections per

cycle

Injector: 2×109 ions 197Au32+

energy 6.2 МeV/u


9

• Nuclotron-M - the 1st stage of the NICA project 2010

an upgrade of existing SC accelerator Nuclotron

• New Linac operational 2013

• Booster in operation 2013

• Nuclotron-M beam to NICA 2013

• NICA collider first beam 2014

• MPD min configuration ready for the beam 2015

NICANICA / / MPDMPD major milestones major milestones


10

The goal – Nuclotron parameters to be reached in 2010necessary for the NICA complex:

- accelerated heavy ions A~200, - beam intensity ~ 109 A/cycle (0.2-0.4 Hz) - energy ~ 4.5 GeV/u for 197Au79+

Major tasks:

• Development of new injection complex

• Modernization of RF system

• Upgrade of diagnostics & beam control systems

• Modernization of the vacuum system

• Modernization of the electric- and cryo- supply systems

• Development of the minimum required infrastructure

Nuclotron-М for NICA


11

Collider NICA

10-12 February 2010 V.Kekelidze, Srong Interactions in XXI, Mumbai11

MPD

RFSPDx,y kicker

10 m

Injection channels

Spin rotator

Beam dump

Long. kicker

S_Cool PUx, y, long

E_cooler

12

Collider Collider – general parameters


Ring circumference, [m] 251 (>)

B max [ Tm ] 45.0

Ion kinetic energy (Au79+), [GeV/u]

1.0 4.56

Dipole field (max), [ T ] 4.0 (2.0)

Free space at IP (for detector) 9 m

Beam crossing angle at IP 0

Vacuum, [ Torr ] 10-11

Luminosity per one IP, cm-2∙s-1 0.75÷11 ∙10^26

13

2009 2010

2011

2012

2013 2014 2015

KRION

LINAC + Channel

Booster + Channel

Booster: magnet syst.

Nuclotron-M

Nuclotron-NICA

Transfer ch. to Collider

Collider

Diagnostics

PS systems

Control systems

InfrastructureR & D Design manufacture

mounting mount+com

commis/opr

operation

NICA: works schedule

24 September 2009 V.Kekelidze, JINR, 106 Scientific Council

14

• NICA CDR Jan 2008

• MPD LoI Feb 2008

• NICA TDR May 2009

• MPD CDR (first version) May 2009

• White book (first version) June 2009

NICA / MPD NICA / MPD project documentsproject documents


The 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 Theoretical & Experimental Physics, RF St.Petersburg State University, RF Institute of Applied Physics, AS, Moldova Institute for Nuclear Reseach & Nuclear Energy BAS, Sofia, Bulgaria Institute for Scintillation Materials, Kharkov, Ukraine State Enterprise Scientific & Technology

Research Institute for Apparatus construction, Kharkov, Ukraine Particle Physics Center of Belarussia State University


MPD Collaboration

Members of the Collaboration JINR ~ 100 Other institutes ~ 50

Institutions JINR + 10 institutes from 5 countries

The Collaboration is permanently growing

New members – are welcome

Version 0.7http://nica.jinr.ru/files/CDR_MPD/MPD_CDR.pdf

16

Progress of the MPD project preparation

• The first MPD concept was presented in LoI issued in February

2008

- it is now modified • The first version of MPD CDR was issued

in June 2009

• Now the version 0.7

is available

• It will be developed in 2010

10-12 February 2010 V.Kekelidze, Srong Interactions in XXI, Mumbaihttp://nica.jinr.ru

Version 0.7

17

3D view of the MPD (conceptual design)

SC Solenoid

Forward spectrometer-B

Toroid


3 stages of putting into operation

1-st stage barrel part (TPC, Ecal, TOF) + ZDC, BBC, S-SC, …

2-nd stage IT,EC-subdetectors

3-d stage F-spectrometers(optional ?)

CD η-regions & energy scan


IT interior (cross-sectional views)

Central tracker (IT)

Based on silicon microstrip detector technology Precise collision vertex reconstruction (σz = 120 m, σr = 23 m) Very efficient for V0 reconstruction Low momentum PID capability


Neutral kaon & Hyperon detection

20

Neutral kaon & Lambda decaysinvariant mass reconstruction

V0 reconstruction


Time Projection Chamber (TPC) TPC is the main tracking device: low material budget meets the requirements of the experiment high read-out rates (up to 6 kHz) has good tracking and PID performance

better than 99% track reconstruction efficiency at pt > 0.15 GeV/c spatial resolution σz = 1 mm, σx = 0.6 mm


The MPD TOF detector

Dimensions, coverage: length – 5 m inner radius - 1.2 m, outer radius - 1.4 m coverage - ||<1.4

Granularity: 12 sectors in 55 RPC modules (62x7 cm2) along z 48 2.5x3.5 cm2 pads in each module# of readout channels – 31700 geom. efficiency - 95% thickness X/X0 ~ 20%

Resistive Plate Chambers :

• widely used (STAR, ALICE, HADES, CBM)• intrinsic time resolution up to 60 ps• functional in magnetic fields, 100% efficient up to fluxes ~ 103 cm-2s-1

TOF barrel


Fast Forward Detector (FFD)

Fast event triggering with forward photon detector Precise T0 time (TDC “Start”) determination ( ~ 50 ps)


FFD performance

High acceptance for gammas in the forward direction Excellent efficiency up to very peripheral collisions Novel Micro-Channel Plate Photomultipliers allow for a sub-40 ps timing!

Photon multiplicity versus centrality



Sampling ADC front-end electronics designed and built by the

group of Dr. S. Basylev

EM calorimeter prototyping


EM calorimeter (performance study)

High energy and time resolution Good PID capabilities for photons, electrons and hadrons


Neutron / gamma separation with Ecal

TOF + Energy

E = 1 GeV

Efficiency (Energy)


Neutron / gamma separation with Ecal

X-Y (transverse)

& Z (longitudinal)

shapes of

the cluster profiles

Efficiency of neutron identification:

95% with 3 % admixture of photons


Zero Degree Calorimeter (ZDC)

Event centrality determination Event plane reconstruction capability

80 modules 5x5 cm2 60 layers of lead-scintillator (4:1), 6WLS-fibers for light readoutMAPD as photodetectors


ZDC performance

Energy resolution (ZDC ~ 6 GeV) meets the experiment requirements Centrality determination in the range 0..11 fm

Energy deposited in ZDC versus centrality

Energy deposited in ZDC versus track multiplicity

Straw end-cap tracker (ECT)

Tracking in the forward direction Complementary to TPC measurements

6 layers of straws


32

Working Groups

TPC prototyping - Yu.Zanevski et. al. Magnet - A.Kovalenko, V.Borisov et.al. ECal - I.Tyapkin, A.Olchevsky et.al. TOF - V.Golovatyuk et.al. Straw wheels - V.Peshekhonov et.al. ZCal - A.Kurepin et.al. CPC - Yu.Kiryushin et.al. FFD - V.Yurevich et.al. BBC - R.Zulkarneev et.al. DAQ - V.Slepnev, S.Bazylev et.al. IT - Yu.Murin, V.Nikitin et.al.


The CBM-MPD SST consortium: GSI - JINR – IHEP - …

in IT silicon module developmentis well progressing

33

Discussion with the potential participators, contractors having an experience

in large solenoid construction has started.

A schedule and cost evaluation will be prepared a.s.a.p. for:

• conceptual design + R&D

• technical documentation reparation

• production and tests

Magnet - Magnet - project developmentproject development



TPC Prototype-2 construction design

spoke sample

Al flange

bottom plate as a central electrode

carbon-plastic cylinder D=95 cm, L=70 cm, wall thickness = 3 mm


Assembling of ТРС

Field cage

HV electrode


ТРС Prototype: Time scale in 2010

Double stack (10 gaps) RPC, read-out pads 2.5 х 3.5 cm2

An RPC prototypeactive area 7 x 14 cm2

TOF RPC prototyping


ECT prototyping

Sub-module prototype

Studies were aimed in investigation of: optimal gas mixture time-amplitude characteristics rate capabilities

Rate capability for a 4 mm diameter straw


Integration & services


Installation sequence & support structure

Solenoid + ECal

ECal

Solenoid + ECal +TOF Solenoid + ECal +TOF+TPC


rails


Analysis of hadron spectra & yields with the MPD detector

Goals: feasibility for extraction of hadronic yields with

a proposed MPD design estimation of sub-detector parameters crucial for

good particle identification (PID)

Procedure: Full reconstruction chain implementing

hit production, tracking, TPC-TOF matching, Particle identification procedure has been developed

using TOF information All corrections are determined from MC simulation :

reconstruction efficiency, acceptance, decays in flight, secondary interactions, etc.

Invariant pt-distributions of p, K, p are obtained Analysis procedure and results are described in the CDR


Large acceptance

PID capability for hadrons & expected acceptances (TPC+TOF-barrel configuration)

Excellent PID for hadrons!


Fit:

Hadron spectra in central Au+Au collisions

300 events

CDR v0.7, p.192

Results of feasibility study:

Excellent parameters of the MPD for study of hadron yields High reliability of the developed reconstruction (tracking, PID)

& analysis algorithms (correction evaluations, reconstruction of pt-spectra)

fit:

Deviation from the reference values below 6% (only for 300 events)!

Stage/Year 2009 2010 2011 2012 2013 2014 2015 2016 1 MPD Conceptual Design Report 2 MPD TDR 3 R&D program TPC TPF ZDC Si inner tracker EMC Straw Tracker DAQ 4 Production (the 1 stage detectors) TPC EMC ZDC TOF (20%) Slow Control DAQ Installation Superconducting Magnet of MPD 5 Production (the 2 stage detectors) TOF Straw Tracker Si inner tracker DAQ Slow Control Gas system Installation Production (the 4 stage, Forward Spectrometer) Toroidal Magnet construction Coordinate detectors production Coordinate detector testing 6 Installation 7 Commissioning

Timetable of the MPD works

44

the first colliding beams for MPD is expected in 2015


45

NICA/MPD –competitive & complimentary to

running experiments

- STAR, Phenix at RHIC (BNL) preparation for LES- NA49/NA61 & ALICE at SPS & LHC (CERN)- HADES at SIS-18 (GSI)

in preparation:

- CBM at SIS-100/300 (GSI)


NICA / MPD advantages- optimal energy range for max baryonic density- close to 4 pi geometry- homogeneous acceptance & resolution functions versus measured & scanned parameters

(kinematics, b, energy etc.)

46

• Physics motivation & competitiveness are well proven by the White Book & Round Table -4

• Realization of the first stage - Nuclotron-M is going well - should be completed in 2010

• Other stages of the NICA complex are well defined & proposed for construction in the NICA TDR

• The MPD design & R&D are progressing well- the CDR is available

• The corresponding collaboration is growing New members are welcome

Conclusions

24 September 2009 V.Kekelidze, JINR, 106 Scientific Council

47

Thank you


48

Spare


Particle identification

TPC using ionization

TPC (ionization) & TPC+TOF (mass reconstruction)


pion kaon proton

5050

Phase diagram

NICA


51

Physics MotivationPhysics Motivation

LE-RHIC scan LE-RHIC scan

NICAenergy range

NICAenergy range


CD assembly (without IT) completed

Rails

TOF

Solenoid

ECal


53

SPD: Spin Physics Detector(preliminary) Leaders:

A.Nagaitsev,I.Savin,

O.ShevchenkoRequirement to the detector:

• 4 geometry to enlarge MMTDY event statistics

• minimal X0 – effective detection of lepton pairs• good angular resolution

– very important for azimuthal spin asymmetry measurements in the wide kinematical region


New technologies for

54

Max transparency (low X0) of end cap structure

New electronics providing the rate of ~ 6 kHz


TPC construction - Straw Wheels Design

55

main results of the runs #38 (2008) & #39 (2009):• essential improvement of accelerator performance

• in addition, several shifts were provided for the physics experiments


Nuclotron-М - the first stage of NICA project

The decision was taken to carry out the physical runs only in case

of guaranteed stable & reliable work of accelerator

- Plans:- Run #40: November 2009 (400-900 hours). Run #42: February 2010 (400-900 hours).

56

NICA/MPD –competitive & complimentary to

running experiments

- STAR, Phenix at RHIC- NA49/NA61 at CERN- HADES at GSI

in preparation:

- ALICE at CERN- CBM at GSI


NICA / MPD advantages- optimal energy range for max baryonic density- close to 4 pi geometry- homogeneous acceptance & resolution functions versus measured & scanned parameters

(kinematics, b, energy etc.)

57

Physics tasks for MultiPurpose Detector

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

HBT correlations indicating the space-time size of the systems

involving π, K, p, Λ directed & elliptic flows for various hadrons multi-strange hyperon production:

yield & spectra (the probes of nuclear media phases) photon & electron probes search for P- & CP violation as a charge asymmetry


should be studied for different ions (from p to Au) by scanning in b & energy (in the range SNN = 4 - 11

GeV/u)

- ring vacuum – improvement for 2 order of magnitude (x10-9)

-RF system: trapping & bunching systems, controls & diagnostics; adiabatic capture

(x2 intensity)

- slow extraction system for accelerated heavy ions at maximal energies (new HV PS for the electro-static septum)

-automatic control system, diagnostics & beam orbit detection & correction system

- successfully commissioned cryogenics after full-scale modernization (10-15% less consumption of N & LHe)

- Injector (fore-injector & LU-20): geodesy, new PS; -> for heavy ions;

- 4 runs KRION-2: CН4, N2, O2, Ar -> Xe44+


MODERNIZATION of:-->x10-10

- KRION 6T; - SPD

59

the study of hot & dense baryonic matter

would provide us with relevant information on - in-medium properties of hadrons

& nuclear matter equation of state - de-confinement and chiral symmetry restoration,

- phase transition, mixed phase & critical end-point- possible strong P- & CP violation

Physics motivationPhysics motivation

It is indicated in series of theoretical works - A. Sissakian, A. Sorin, V. Toneev, G. Zinovjev et al.- M. Gazdzicki, M. Gorenstein,

- . . . .

that an optimal way to reach the highest possible

baryon density in the lab

is heavy ion collision at SNN = 4 - 11 GeV/u


60

Nuclotron upgrade: achievements & open questions

• Stable operation of beam intensity 2*1010 ppc at 1Tesla = 2.5 GeV/n

• The magnetic field - reached 1.5T & the deutron beam up to 3.8 GeV/n

• Modern quench detection system & new energy evacuation systems - are under commissioning


The goal for beam dynamics improvement: minimization of the beam losses at all stages from injection to acceleration & to extraction of the beams

-not more then 15-20%(it is now ~ 50-80%)

61

Leaders: I.Meshkov, A.Kovalenko, G.Trubnikov,

Machine advisory committee (MAC)• Boris Sharkov, ITEP, chairman• Pavel Beloshitsky, CERN• Sergei Ivanov, IHEP• Thomas Roser, BNL • Markus Steck, GSI• Nicholas John Walker, Desy

1-st report on Nuclotron-M Jan 2009 1-st review on NICA June 2009 The next meeting is foreseen in Dubna Jan 2010

Accelerator FacilityAccelerator Facility


MPD Performance Acceptance (B=0.5 T):Full azimuthalIT (||<2.5)TPC (||<2)TOF (||<3)ECAL (||<1.2)FFD (2.5<||<3.2)Forward (2<||<4)ZDC (||>3)

TPC (dE/dx):/K ~0.6 GeV/c, (,K)/p ~1.0 GeV/c

TOF:TOF:/K ~ 1.5 GeV/c/K ~ 1.5 GeV/c((,K)/p ~ 3 GeV/c,K)/p ~ 3 GeV/c


TOF performanceBarrelBarrel

BarrelBarrel + endcap + endcap

103 UrQMD (Au+Au) events, B = 0.5(0.2) T

|| < 1.4, pt=[0.1..2] GeVc – barrel|| < 2.6, pt=[0.1..2] GeVc – barrel+endcap

~ 2~ 2 /K separation @ 1.3-1.5 GeV/c/K separation @ 1.3-1.5 GeV/c


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Introduction Physics Motivation – White Book NICA Concept Collaboration MPD concept

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