LCDROOT is a simulation/analysis facility based on ROOT, for future Linear Collider experiments.
It handles:
A simulation/analysis flow in LCDROOT is here.
1) Event Generation
In LCDROOT, we have 3 kinds of generators:
- Pandora_Pythia (V3.2) This is our main generator ... include ISR, beamstrahlung, and beam polarization
- Pythia (6.161)
- MCDiag ... for single particle generation
Out puts ROOT or stdHEP (HEPEVT common),
- ROOT can go through FastMC can store beam-polarization information
- stdHEP can go through FastMC & FullMC (GISMO)
Or, it is also possible to be directly linked to FastMC
Even you want to use other generators, LCDROOT can read output HEPEVT common (xdr binary).
2) Detector Simulation
LCD group offer the two kinds of detector simulation: FastMC and FullMC
Here LCD Root does FastMC, FullMC and reconstruction of the FullMC data (=FullRecon).
i) FastMC
- Smear particle position/energy and makes Tracks and Clusters
- Charged particles are bended by Magnetic field
- Smear IP position
- Detector parameters/Smearing resolution are determined by input geometry files: There are 3 kinds of detector parameter files ... Silicon (SD) Large (L) and Precise (P)
- After reading the detector parameter files, some/all of parameters can be changed at user level. (You can set up any Magnetic field value, for rxample.)
Outputs Root or is directly linked to Event Analysis
ii) FullSIM (GEANT4)
- Full Detector simulation by GEANT4 is available in LCDROOT
- Detector geometry is given by XML file
Outputs ROOT or is directly linked to FullRecon
ii) FullRecon
- Read GEANT4 (ROOT format) or GISMO (SIO) outputs
- Make Cluster and Tracks from the full simulator outputs
Outpus Root or is directly linked to Event Analysis
3) Event Analysis
We have several useful analysis tools for Linear Collider studies:
4) Event Display
LCDROOT home page M. Iwasaki & T. Abe Last Modified: 01/13/04 13:01