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High Energy Nuclear Physics Program 2006-2011

Status report

April 2009

• Experimental activity – Focus on ALICE

– Groups at UiO, UiB, HiB

• Theoretical activity–Groups at UiO and UiB

• ISOLDE

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Overview

• PhD and Master (since November 2007)

• Publications (since November 2007)

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Budget

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Budget 2006

3437 280 -

82 + 442 (misc)1371

1042 494

Dag Larsen 1.11.06

Boris Wagner 1.11.06 (50%)

6673

Budget Expenditure

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Budget 2007

607 (from 2006) - 531 (UiO) 978 515 - 63 + 573 (misc)1958

1881 871 3.2008 546 Dag Larsen

-

863 408 Boris Wagner (50%) 455 Kalliopi Kanaki 1.6.2007

6336

Budget Expenditure

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Budget 2008

-1071 (from 2007) - 880 25 - 62 + 144 (misc)2018

2057 269 3.2008 582 Dag Larsen

Temp. contracts engineer UiB

1074 367 Boris Wagner (50%) 708 Kalliopi Kanaki -

6336

Budget Expenditure

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Budget - summary

• M&O cat. A: higher than expected

• M&O cat B: lower than forseen

• Running costs of commissioning/data taking: underestimated– CERN mobile phones

– cables and fibres, electronic components, air-tight flansches

– bug fixing, re-soldering of FECs

– rental car for transport to P2

– PVSS course

– ...

• Travel and subsistence – OK

• Postdoc/stipend positions– Johan Alme hired was as engineer for one additional year

– Missing engineer at UiB for one year: several temporary contracts

• Status of today: 21116 kNOK spent (out of 36889 kNOK)

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Manpower

status April 2009

• Master students– Rikard Bølgen (UiB, ALICE instrumentation)– Dana Huang (UiB, ALICE physics)– Henrik Qvigstad (UiB, ALICE physics)– HiB project

• Master students in instrumentation (see Steinar’s presentation)– Hege Erdal– Kristian Ytre-Hauge– Camilla Stokkevag– Per Ivar Lønne– Andreas Samnøy– Stian Sagevik (Medical physics)

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Manpower

status April 2009

• PhD students

Njål Brekke Medical physics Bergen

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Manpower

status April 2009

• Postdocs *

* Two postdocs sharing one position at UiO (Theory), starting in 2009

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Manpower

status April 2009

• Permanent staff (experiment)

• Permanent staff (theory)

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Group structure and expertise

Joakim NystrandDieter Røhrich

Postdocs:Boris WagnerKalliopi Kanaki

2 PhD students

Håvard Helstrup Kristin Fanebust HetlandBjarte Kileng1 PhD student

Kjetil Ullaland1 PhD studentUiB

Nuclear Physics

HiBTechnical Computing

UiBMicroelectronics

Gunnar Løvhøiden (retired)Trine Tveter

Postdocs:Jovan Milosevic

UiONuclear Physics

Bernhard Skaali (retired)

1 PhD studentUiO

Electronics2 PhD students

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Experiment

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Status of ALICE – September 2008

ALICE StatusComplete: ITS, TPC, TOF, HMPID,FMD, T0, V0, ZDC, Muon arm, Acorde

Partial installation:1/5 PHOS 4/18 TRD 9/48 PMD0/6 EMCAL

~ 40% DAQ/HLT

Installation targets met by mid 2008Ready to take data

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Status of ALICE – Summer 2009

100% TPC80% HLT 3/5 PHOS

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Time Projection Chamber - TPC

• Norwegian in-kind contribution to FEE

• Status– The TPC in its final

position at P2 was successfully commissioned in 2008 with Krypton gas, laser tracks and cosmics

– Currently services are being reconnected

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Time Projection Chamber - TPC

The Norwegian groups participated

• in the development– of the read-out

electronics (read-out controller unit),

– of the trigger electronics (busy box)

– and of the field layer of the DCS for the FEE,

• in the integration of the TPC into the Trigger, HLT and DCS systems,

• in the installation of the FEE and

• in the commissioning.

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Time Projection Chamber – RCU/DCS

• Summary of activities/achievements in 2007-2009 (DL, Matthias Richter, Sebastian Bablok, DF, Johan Alme, Ketil Røed)

– RCU firmware: Trigger If

– DCS software (CE and FES)

– Installation and Commissioning

Cmd / ACKChannelServiceChannel

MessageChannel

FED Server

FEE ClientInterComLayer Configuration

Data Base

FeeServer

PVSS II(FED - Client)

FeeServerFeeServer

Supervisory Layer

Control Layer

Field Layer

Front-End Device Interface (FED)

Front-End Electronics Interface (FEE)

HardwareDevice

HardwareDevice

HardwareDevice

Internal BusSystems

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BUSY Generation

– Busy box (hardware, firmware, DCS software)

– Installation and commissioning

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Calibration strategies - TPC

Raw data

• Sequence of ADC counts per pad

• pad-number, pad-row

and

arrival time of signal on pad

Calibrated data

• Cluster charge

• Space coordinate of cluster centroid

Reconstructed data

• dE/dx

• Particle trajectory

gain

reco

nst

ruct

ion

alignment

t0, drift velocity

electrostatic distortions

ExB effects

space charge effects

electron attachement

– Online/Offline interfaces

– Drift velocity calibration

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Radiation tolerant read-out controller unit

– Modelling of the SEUs (in collaboration with IBM)

– Integration of the reconfiguration procedure into DCS

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PHOton Spectrometer - PHOS

• Norwegian core contribution to read-out chain

– APD + preamp + T-card

– FEE, trigger

• Status– The first module had been

commissioned and calibrated with cosmics in the PHOS-lab in 2007 and at P2 (in its final position) in 2008, although it had not been not cooled down to -21 degrees.

– At the end of 2008 it was removed from the pit. This module and two further modules are now being inserted into air-tight casings, re-assembled, tested and installed at P2.

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PHOton Spectrometer - PHOS

• The Norwegian groups contributed to the development of the read-out electronics (preamplifier, front-end and trigger electronics and read-out controller unit).

• They participated in the integration of PHOS into the Trigger, DAQ, HLT and DCS systems, in beam tests and in the commissioning in the lab and at P2.

• They have supplied accompanying simulations of the physics capabilities, detector performance and trigger selectivity and rates.

• Summary of activities/achievements in 2007-2009(Per-Thomas Hille, OD, DL, KS, LL):

– DCS for the FEE

– Integration with DAQ, ECS, Trigger and DCS

– Firmware design of the FEC board controller

– Firmware design of the L0 and L1 trigger generation

– Commissioning the first module

– Calibration of the first module with cosmics

– Development of online data processing, filtering and trigger algorithms

– Development of online monitoring and calibration tools

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High Level Trigger - HLT

• Norwegian corecontribution to the HLT cluster

• Status:The first phase of the HLT installation is completed: full detector connectivity.

• All interfaces to other subsystems are in place;

• tested reconstruction chains are available.

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High Level Trigger - HLT

• Summary of activities/achievements in 2007-2009– Methods and algorithms for an on-line selection of (rare)

signals (KK, MR, SB, KA, GO, OD)

» TPC

» PHOS

– A common HLT analysis framework has been developed that allows to run online code inside the AliROOT offline framework and vice versa (MR)

– Interfaces to all other relevant subsystems, i.e. ECS, DCS and OFFLINE have been developed, implemented and tested (SB)

– We also contribute to the cluster management and the online monitoring of the HLT system (ØH)

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Preparing for physics analysis

• Study of flow phenomena in pp collisions (JM), study of the ALICE detector performance for elliptic flow measurements, study of possibility to measure directed flow

• Correlations (JM, MN)• Study of gamma-hadron jets (SL)• Reconstruction of neutral pions via gamma

conversions in the TPC (KA)• Online reconstruction of open charm (GO)• Transverse neutral energy production in p+p and

A+A collisions (OD)• Study of two-photon and photonuclear processes

in ultra-peripheral collisions at the LHC (KS)

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Theory

• The Bergen group continued the development and testing of our hybrid 3D-hydrodynamical models for QGP scenarios: a Multi-Module Model for describing the reaction’s initial preequilibrium stage, the intermediate thermally equilibrated hydrodynamical stage, and the final freeze-out stage. The main goal was to incorporate the Constituent Quark Number (CNQ) scaling in the hydro calculations, and Freeze-Out.

• The Oslo group studied the possible thermalization and Equation of State of hot and dense nuclear matter in heavy-ion collisions within the microscopic transport models, the collective anisotropic flow and two-particle correlations. The group also worked on a fast MC Generator, implemented in ALIROOT, which contains a statistical model, PYTHIA, jet quenching and flow with impact parameter dependence; on the implementation of cold nuclear effects from Glauber Gribov Theory in HYDJET-generator and on the production of heavy quarkonium.

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ISOLDE

• 2006

• 2007 – 300 kNOK ISOLDE membership fee

• 2008– 300 kNOK ISOLDE membership fee

• Since 2007– ISOLDE theory (Jan Vaagen, Morten Hjorth-Jensen, Eivind

Osnes) supported by the ALICE project