High Energy Nuclear Physics Program 2006-2011
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Transcript of High Energy Nuclear Physics Program 2006-2011
1
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
2
Overview
• PhD and Master (since November 2007)
• Publications (since November 2007)
3
Budget
5
Budget 2006
3437 280 -
82 + 442 (misc)1371
1042 494
Dag Larsen 1.11.06
Boris Wagner 1.11.06 (50%)
6673
Budget Expenditure
6
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
7
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
8
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