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Software tools and
Computing
Akiya MiyamotoKEK
Gakujyutsu Sousei Kaigi28-June 2006
KEK 4th Building Seminar Hall
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lcbase : configuration files
Leda : Analysis tools (Kalman fitter, 4vector and jet findinder utilities )
jsf : Root-based framework lclib : QuickSim and other fortran based utilities physsim : Helas-based generator
Jupiter : Full simulation based on Geant4 Uranus : Data analysis packages Satellites : Data analysis packages for MC data
List of our tools
Mainly for physics studies
Mainly for detector studies
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QuickSim overview
Purpose: simulate detector effects for physics study Components:
VTX, IT, TPC, CAL Model for tracker
circular trajectory parabolic trajectory With multiple scattering, without energy loss Equally spacing sampling
Model for Calorimeter EM signal by e/, HD signal by hadron, muon no signal Segmented calorimeter. Lateral spreads are generated by an analytic form.
Detector configuration is determined by input ASCII file.
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QucikSim Parameters
Detector performance is determined by input parameters. Parameter set
/ ~ 30% /E E E
gld_v3.com
/ ~ 40% /E E E
gld_v4.com
Energy resolution of each cell and cell sizes are adjusted
Configuration files are athttp://ilcphys.kek.jp/soft/samples_dod/dec05/index.html
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QuickSim Tracker performance
Momentum resolution similar to the Jupiter/Satellites resultIP resolution at 1 GeV is about factor 2 worse than the Jupiter/Satellites result
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Tools for Full Simulation studies
JUPITERJLC Unified
Particle Interactionand
Tracking EmulatoR
IOInput/Outputmodule set
URANUS
LEDA
Monte-Calro Exact hits ToIntermediate Simulated output
Unified Reconstructionand
ANalysis Utility Set
Library Extention for
Data Analysis
METISSatellites
Geant4 basedSimulator
JSF/ROOT basedFramework
JSF: the analysis flow controller based on ROOT The release includes event generators, Quick Simulator, and simple event display
MC truth generator Event Reconstruction
Tools for simulation Tools For real data
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Need full ptr. To MCParticle
For background study IR components are defined by a ASCII data file.
Default: 2 mrad But the current one may not be the latest … Prepare data file for 14mrad X-ing.
DID/Anti-DID map was prepared, but lost. Interface to LCBDS Through AscII StdHep
New geometry Non-Tower ( StripTile ) CAL geometry Takeshita FCAL/BCAL sensitive detector Muon detector
Improve LCIO compatibility Update to the latest Geant4 (4.8)
Jupiter to do list (Dec. 05)
Done
(Jun. 06)
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History keeper implementedStudy in progress
Reconstruction to do – 1 (Dec.05)
PFA Cheated PFA : unknown 1.16 GeV almost understand.
Considering major Jupiter modification ??? Realistic PFA
Tower geometry : – 38 %/Sqrt(E) at Zpole – ~ 90%/Sqrt(E) at 500GeV Need to improve finding eff.
Non-Tower (Strip/Tile) Geometry:– Apply Yoshioka/Fujikawa algorithm ?– New algorithm for strip configuration ?
Muon reconstruction With Muon Detector With Calorimeter
(Jun.06)
Work in progress
Not yet
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Forward Region
BCAL : Total Z length 20 cm 30 layers of 3mm thick Tungsten
+ 0.3mm thick Si. + Air gap (Not the latest)
FCAL Front and Tail: 30 layers of 3mm Thick Tungsten + 0.3mm thick Si + Air gap (Not the latest)
HDCAL
QC1
MUD
CH2 Mask TPC
EMCAL FCAL
BCAL
Response to 10GeV e+
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Reconstruction to do – 2 (Dec.05)
Tracking Momentum resolution for TPC/IT/VTX done Track finding in TPC Track finder for Vertex with background hits. IT + Vertex track fitting/finding
Vertexing Impact parameter resolution done Flavour tagging, vertex charge reconstruction
LCIO compatibility PFO 4 vectors Hits, cluster, …
IT findingb YGKimIn progress
(Jun.06)
LCIO JSF : planing
Not yet
Gamma : May06 Jun06
EM Constant: 24.1237EM Constant: 24.3367
15.36 0.2685 15.17 0.3599
Kaon 0L : May06 Jun06
HD Constant: 29.9906 HD Constant: 33.5625
46.9 4.26943.84 8.671
Cheated PFA : uds91 GeV
May06 Jun06
Mar06(Tower)Geant4.8
92.3 2.5
90.28 2.9690.61 2.63
93.25 2.59
Dec05(Tower)Geant4.7
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Common Datasets ( Dec.05)
Priority
Process Gen Data sample
Meas.
1 Single particle: e, , K+-, KS0,
0<|cos| < 1, p < 500GeVSLAC E, P
1 e+e- uds, cc, bb at Zpole, 300GeV, 500GeV, 1000 GeV
SLAC E
2 e+e- ee @ 1000 GeV ? E
2 e+e- ZH ll X , Mh=120GeV @ 300 GeV? Pythia ? MH
3 e+e- ZH bb, cc Pythia ? MH
4 SUSY Processes ? ? ?
? Two Photon background events ?
More processes …
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Common data sample (Jun06)
Full simulation data sample for detector stuides Data sets: dec05, mar06, may06, jun06 Links available at http://ilcphys.kek.jp/soft/ A kind of data
Single , k0L, , 0, e-, at 1 – 500 GeV : 1K or 10k events E+e- uds quarks pair, ccbar, bbar at 91.18, 200, 350, 500, 10k-20k events Cain background data E+e- ZH lepton + qqbar, 4-jet, 2-jet events at 350 GeV
Producing data as much as possible. Statistics limited by CPU resources.For example, with Xenon 3GHz
Uds 91.18 GeV : 10 k events : 11.7 CPU days/17GB Uds 500 GeV: 10k events(~O(10 1/fb)): 37.7 days/34GB CAIN 10 bunch data: 48GB
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Towards GRID
Needs for GRID At each institutes, computing resources are hidden behind
firewall Current solutions
WEB/FTP : needs to transfer data inside fire wall to outside VPN : Can make a direct connection, but not efficient to
transfer large data Future solutions (hope)
Share data by Data GRID Middle ware:
– EU – LCG, NA – OSG, Belle Other GRID system– ECFA group: Developed ILC VO on LCG– KEKCC: Development – new middle ware. Will support LCG.
How to proceed– Define ILC VO using KEKCC hardware + disks for ILC
Trying to connect to Tohoku and Kobe First use will be to share CAIN data Collect information from outside Japan
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