1

CERN related research program in 2006-2011

Nuclear Physics

• High energy nuclear physics – ALICE experiment

» Installation and Commissioning

» Data taking

» Data analysis – offline computing

» Physics program

» HENP after 2011

– Theory

• ISOLDE activity

2

ALICE at LHC

• First collision: mid 2007

• ALICE lifetime = 10

years

3

ALICE - budget

4

Installation and Commissioning – 2006 (1)

• Installation of the TPC FEE – Dec. 2005 – Feb. 2006

– 3 people for 2 months

1 person-month @ CERN:~35 kNOK

5

Installation and Commissioning – 2006 (2)

• TPC/HLT pre-commissioningwith laser beams and cosmics

– Feb. 2006 – Aug. 2006

– 1-2 people for 2-3 months

• Installation of the TPC RCUs

– Summer 2006– 1 person for

2 weeks

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Installation and Commissioning – 2006 (3)

• Installation of the PHOS FEE and RCU – Spring 2006

– 2 people for 2 months

• PHOS pre-commissioning and calibration– PS beam in summer 2006 for 8 weeks

– 1-2 people for 2.5 months (shifts)

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Detector installation plan

PHASE Detector Start Finish

PHASE 2 - 3 Muon detectors Jan 2006 End 2006

PHASE 2 HMPID 09.01.2006 07.05.2006

TOF / TRD 08.03.2006 31.07.2006

PHOS + services, emcal support frame 01.08.2006 End Aug. 2006

PHASE 3 TPC in parking position 01.09.2006 02.10.2006

ITS Barrel (SDD,SSD) 03.10.2006 16.10.2006

Vacuum (central Be chamber) 17.10.2006 16.11.2006

FMD/V0/T0 (RB26) 17.11.2006 28.11.2006

Pixel + ITS barrel + service 29.11.2006 12.01.2007

TPC in final position 13.01.2007 16.02.2007

PHASE 4 FMD/V0/T0 and PMD (RB24) 17.02.2007 02.03.2007

2nd installation window

TOF/TRD/PHOS 03.03.2007 28.03.2007

Beam line + shielding 29.03.2007 End April 2007

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Commissioning - 2007

• Commissioning of the front-end electronics– TPC

– PHOS

• Installation and commissioning of the HLT– Full connectivity

– 30% of computing power

• First pp collisions in summer 2007

• First PbPb collision in 2008

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Running scenario

• First pp collisions in 2007

• 1 month per year heavy ion run

• 7 months per year pp

• Running schedule for the first 5 years– Regular pp runs at 14 GeV

reduced luminosity between 1029 and 5*1030 cm-2sec-1 which will leads to event rates from 10 kHz to 200 kHz

– 2-3 years PbPb collisionsluminosity of 5*1026 cm-2sec-1 which leads to an interaction rate of 4 kHz

– 1-2 years ArAr

– 1 year pPb like collisions

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Data analysis – offline computing

• Scandinavian offline computing contributed through NDGF (Nordic Data Grid Facility)

• Agreed sharing ATLAS/ALICE 50%/50%

• ALICE computing needs approx. half of ATLAS but half the number of collaborators

• LCG resource status: 50% shortfall for ALICE

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Evolution of computing resources

CMSATLASALICE

17161011112011115MSS

26144242131392Disk

554026654117352616CPU

NowLHCC

2004

HR

2001Now

LHCC

2004

HR

2001Now

LHCC

2004

HR

2001

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Present status of pledged resources

• Tier 0 at CERN• ALICE requirements satisfied, including peak for first pass

reconstruction

• Tier 1 and Tier 2• As declared to LCG and presented to RRB• CAF not included

T1 T2 T1 T2 T1 T2 T1 T2

TDR requirement (MSI 2K) 4,9 2,7 12,3 5,0 16,0 6,8 20,9 8,5

Missing % -48% -54% -46% -65% -35% -64% -28% -65%

TDR requirement (TB) 3175 698 7937 1412 10319 2189 13414 2961

Missing % -65% -53% -65% -59% -57% -52% -51% -50%

TDR requirement (TB) 2779 - 6947 - 9031 - 17880 -

Missing % -56% - -54% - -33% - -49% -

CPU

Disk

MS

Pledged by external sites versus required MoU

2007 2008 2009 2010

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Physics program

• Flow analysis (TPC, HLT)

• High pt physics – Nuclear modification factor

direct and 0, (PHOS, TPC, HLT)

– Di-jets, gamma-jets (PHOS, TPC, HLT)

• Heavy flavour– Open charm production (TPC, ITS, HLT) production (TPC, TRD, HLT)

• Ultraperipheral collisions (TPC, SPD+trigger detectors, HLT)

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Nuclear Theory

• Relativistic heavy ion collisions and quark-gluon plasma

– Initial state

– Final Freeze Out

– Collective, Fluid Dynamical properties (“Third flow component”)

– Phase transition dynamics

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Personell - staff

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ALICE - budget

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HENP after 2001

• ALICE running plan– pp or pp-like run at 5.5 TeV

– Light AA system

– dA

– Low energy PbPb

– Another high energy PbPb

• ALICE upgrades ?

• CBM at FAIR/GSI ?

• Astrophysics experiment ?

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ALICE at LHC – Phase 2

Depending on physics results• Upgrades: detectors, FEE,

DAQ, trigger

• Example: detector covering large rapidities

• Probe initial partonic state in a novel Bjorken-x range (10-3-10-6):– nuclear shadowing,

– high-density saturated gluon distribution

J/ψ

ALICE PPR CERN/LHCC 2003-049

10-6 10-4 10-2 100

x

108

106

104

102

100

M2 (

GeV

2)

10 GeV

SHLC: shutdown (2012 ?) + upgrade 2012 - 2015

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CBM experiment at FAIR/GSI

• Facility for Antiproton and heavy Ions Research

• Planned commissioning: 2010 – 2015

• CBM experiment – super-dense baryonic matter– in-medium properties of hadrons

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Dense Matter in the Universe

• Mergers of binary stars – the ultimate nuclear collision– evolution depends on the equation-of-state of the matter inside the

star – large differences between normal neutron stars and selfbound stars– different pattern of mass transfer– observable via gamma bursts, gravitational waves, ...? in 2020?

astro/-ph/0403374

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ISOLDE physics

• Isotope Separator On-Line DEvice

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Physics program

• Experiments at REX-ISOLDE– Mass 80 region:

Neutron-rich nuclei approaching the doubly closed shell nucleus 78Ni

– Mass 132 region:important for r-process calculations

– Mass 230 region:Coulomb excitation -> collective features

» Nuclear shape» Multi-quasiparticle excitations

– Detectors» Gamma arrays like MINIBALL» Compact disc detector for the scattered beam

• Theory– Extreme, low-density nuclear states– Few– and many-body systems

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Personell – staff (ISOLDE physics)

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Budget (ISOLE physics)