Simulation Validation
This pages is intended to held the information needed for validation of the simulation, from MC samples to generator and reconstructed distributions and reference/documentation to tools.
Validation Tests
|
Analysis |
Gauss |
cmt |
CMake |
Who |
Geant4 |
cmt |
CMake |
Who |
LHCbPR2 |
1 |
Hadronic cross-section |
- |
- |
- |
|
hadr00 |
Y |
Y |
|
Analysis Module - work in progress |
2 |
Hadronic interaction probability |
Sim/SimChecks Target |
Y |
N |
Kristian |
- |
|
|
|
Handler exist, work in progress |
3 |
Hadronic Multiplicity |
Sim/SimChecks Target |
Y |
N |
Kristian |
- |
- |
- |
|
Handler exist, work in progress |
4 |
ECAL |
- |
|
|
|
TestEm3 |
Y |
Y |
Tim |
Analysis Module exists |
5 |
Multiple scattering in thin layers |
- |
|
|
|
TestEm5 |
Y |
Y |
Tim |
Analysis Module exists |
6 |
Multiple Scattering in MUON |
Muon/MuonMoniSim |
? |
? |
Ryan |
- |
- |
|
|
|
7 |
Bremsstrahlung |
(Sim/SimChecks EmValidation ) |
Y |
N |
Georgios |
- |
- |
|
|
|
8 |
dE/dex in thin layers |
(Sim/SimChecks EmValidation ) |
Y |
N |
Georgios |
- |
- |
|
|
|
9 |
Rad length monitoriting |
Sim/SimChecks rad_length_scan |
Y |
Y |
Kristian |
- |
- |
|
|
CMT version run in LHCbPR nightlies (merge request #63 for cmake) |
10 |
Sajan Cherenkov tests |
|
|
|
|
|
|
|
|
|
11 |
Marco A RIVET tests |
|
|
|
|
|
|
|
|
|
12 |
Alessio's tests |
|
Y |
Y |
|
|
|
|
|
Run in LHCbPR nightlies |
13 |
Detailed Timing Tests |
|
|
|
|
|
|
|
|
|
Samples for validation
A set of samples are necessary for validating a new production version, new versions of Geant4 and of generators. The production of these samples should become automated and the results published on a dedicated web page. This samples are produced by the production system, so that the all chain is exercised.
Two different macro-sets are produced depending on what need to be validated:
- particle-gun, min bias and inclusive samples (sim+digi)
- physics samples (dst files)
The
list of samples to be produced routinely should be populated by the MC physics working groups contacts, the detectors, trigger and reconstruction software contacts.
The list of sample produced for MC09 can be found
here.
Distributions for validation
- The list of distributions to be verified provided by the physics working groups and by the detectors.
- Generators: plots comparing different generators and Gauss versions can be found here
- Validation of simulation phase,
May-Be-Not-Up-To-Date plots comparing different Geant4 and Gauss versions can be found here
- Selected recent studies of:
- Radiation Length Scans using G4
,
Work-In-Progress
Tools for validation and tuning
MC production histograms: monitoring tools
Instructions to use of the Online Tools (
OnlineHistDB
,
Presenter
) for monitoring the MC histograms can be found
here.
May-Be-Not-Up-To-Date
Rivet and Professor
A dedicated package called GenTune is available from Gauss v42r2 for tuning of generators against published data, using Rivet. Instructions and documentation are available from
this page.
--
GloriaCorti - 24-May-2011