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A test of HSimulation-HReconstruction chain with low energy CORSIKA showers
I.De Mitri, Lorenzo Perrone, M. Settimo
Auger Analysis MeetingSeptember 11-14, 2006
Chicago
Università di Lecce and INFN
Summary tables of Monte Carlo Truth
In collaboration with S. Petrera and F. Salamida
- HSimulation-HReconstruction (Offline Framwork) chain - Distribution of reconstructed variables and selection cuts - Impact of cuts on ICRC 2005 hybrid aperture - Trigger info
- Availability of simulated data- summary tables of Monte Carlo Truth **- a ``skeleton'' web site to make a subset of simulated data
available for interested group (thanks to B. Dawson for the feedback)
Outlook
** this work has been designed and carried out in collaboration with the group of L'Aquila (S.Petrera and F. Salamida)
Simulation sample
CORSIKA 6.200 QGSJET: hadronic modelFLUKA: low energy hadronic interaction model
5 × 783 -> 1017 eV5 × 597 -> 1017.5 eV 5 × 813 -> 1018 eV
proton primaries in a 10 km slice for E= 1017 eV
in a 15 km slice for E= 1017.5 eV in a 32 km slice for E= 1018 eV in a 50 km slice for E= 1018.5 eV
dN/d ~ sin cos 0° < < 65°
the shower library has been generated in Wuppertal University
E= 1017 eV E= 1017.5 eV
E= 1018.5 eV E= 1018 eV
HSimulation
Corsika showers are provided in the EventFileReader.xml as a space separated file list
ioauger.root
- Further info: no database, FastTankSimulator - Shower width is taken into account (Gora et al GAP- 2005-073)
<module> EventFileReaderLG </module>
<loop numTimes="1" save="yes">
<module> EventGeneratorOG </module>
<!-- Sd simulation part -->
<loop numTimes="unbounded" save="no">
<module> CachedShowerRegeneratorOG </module>
<module> FastTankSimulatorOG </module>
</loop>
<module> SdPMTSimulatorOG </module>
<module> SdFilterFADCSimulatorMTU </module>
<module> SdBaselineSimulatorOG </module>
<module> TankGPSSimulatorOG </module>
<module> TankTriggerSimulatorOG </module>
<!-- Fd simulation part -->
<module> ShowerLightSimulatorKG </module>
<module> LightAtDiaphragmSimulatorKG </module>
<module> TelescopeSimulatorKG </module>
<module> FdBackgroundSimulatorOG </module>
<module> FdElectronicsSimulatorOG </module>
<module> FdTriggerSimulatorLAG </module>
<module> CentralTriggerSimulatorOG </module>
<module> EventBuilderOG </module>
<!-- Output and visualisation -->
<!--module> UserModule </module-->
<module> SdSimTruthIT </module>
<module> EventFileExporterOG </module>
KG-based FD simulation
Lecce-L'Aquila modified modules for writing out FD and SD MC Thruth
HReconstruction
KG-based FD profile reconstruction
UserModuleLG
<sequenceFile> <enableTiming/> <moduleControl> <loop numTimes="unbounded" save="yes"> <module> EventFileReaderHY </module> <loop numTimes="1"> <module> EventCheckerOG </module> <module> FdCalibratorOG </module> <module> SdCalibratorOG </module> <module> FdPulseFinderOG </module> <module> FdSDPFinderOG </module> <module> HybridGeometryFinderOG </module> <module> FdApertureLightOG </module>
<!-- profile from least square solution --> <module> FdProfileReconstructorKG </module> </loop> <module> UserModuleLG </module> </loop>
</moduleControl> </sequenceFile>
An overall root tree with MC Truth and reconstructed values is generated and written out for analysis.
The SD_Id is not always an increasing number. An exchange/shift occurs randomly when writing out the event. Not a real bug, but an ``uncomfortable'' feature if you rely on an ordered sequence of events (i.e.: for a cross-check with a corresponding MC event list) ->Bugzilla #497
Requirements for this study
station used inreconstruction is less than 2000m from the Axis(time chisq)/dof is lower than 8 FD/SD time residual it is lower than 200ns
position less than 2 km off from
SDPat least 2 ``good station''
(obs.) mindepth < Xmax
< (obs.) maxdepth && rec. profiles > 200g/cm2
hybrid_flag=111
17 3855 398 103 (25%) 3 (<1%) 017.5 3859 1181 538 (45%) 105 (9 %) 29 (2.5%)
18 3960 1092 717 (65%) 559 (52%) 258 (24%)18.5 3671 951 682 (71%) 681 (71%) 403 (42%)
gen fd_triglog10
(E/eV)
Resolution
Energy
Resolution
Energy
1017 eV
1018 eV
1017.5 eV
1018.5 eV
Resolution
Energy
1017 eV
1018 eV
1017.5 eV
1018.5 eV
ICRC 2005FD mono with ``true geometry''
Resolution
X
max
1017 eV
1018 eV
1017.5 eV
1018.5 eV
Resolution
X
max
Resolution
Core Distance
Resolution
Core Distance
hybrid rec
mono rec
1017 eV
1018 eV
1017.5 eV
1018.5 eV
Resolution
Core Distance
Resolution
Space Angle
1017 eV
1018 eV
1017.5 eV
1018.5 eV
Resolution
Space Angle
Resolution
R
P
1017 eV
1018 eV
1017.5 eV
1018.5 eV
Resolution
R
P
Resolution
0
1017 eV
1018 eV
1017.5 eV
1018.5 eV
Resolution
0
Expected Impact of analysis on the Hybrid Aperture
ICRC 2005 (S. Petrera et al.)
Kascade 2.3E+05 1.0E+05 2.8E+04 (12%)Hires 2.5E+05 1.1E+05 2.7E+04 (11%)
Number of expected events/year E >1017 eV (a 10% duty cycle is taken into account)
events/year
dNdEdSdtd
⊗A(E) ⊗T10%
dE∫
Exercise....orders of magnitude
From the Adelaide site we took the real hybrid event from 1/1/06 – 1/6/06
55608 events - 28364 events hybrid_flag=111
- 91000 events/year on 4 eyes
- ..... against 1-1.1 105 events/year expected
...after normalizing
1017 eV
1018 eV
1017.5 eV
1018.5 eV
Trigger Probability vs Core Distance
Trigger Probability vs Azimuth Angle
1017 eV
1018 eV
1017.5 eV
1018.5 eV
Trigger Probability vs Zenith Angle
1017 eV
1018 eV
1017.5 eV
1018.5 eV
Availability of simulated data
ioauger.rootioauger.root
MC_Truth FD-> FdTriggerSim.log.rootSD ->tank.log.root
XML_files*.xml
http://auger.le.infn.it/~lorenzo/www/private/main_ioauger.htmhttp://auger.le.infn.it/~lorenzo/www/private/main_ioauger.htm(mozilla/firefox and konqueror proofed )
4 eyes
event: SD info
event: FD info
eye: FD info
FdTriggerSim.log.root
tank.log.root
CORSIKA Showers currently available at the Gran Sasso Laboratory
1000 1017 eV 750 1017.5eV 1000 1018 eV 1000 1018.5eV 250 1019 eV 250 1020 eV 216 1021 eV
dN/d ~ sin cos 0° < < 89°
CORSIKA 6.200 QGSJET: hadronic modelFLUKA: low energy hadronic model
THIN : 10-6 (optimal)ECUT: 100 Mev for adrons, 250 keV for electromagnetic particles
- a mysql database with basic info on each shower and corresponding address has been set up on auger-gs.lngs.infn.it
- a synced copy of the databased can be browsed at: http://193.204.78.146/phpMyAdmin/index.phphttp://193.204.78.146/phpMyAdmin/index.php
protons...from Wuppertal library
http://193.204.78.146/phpMyAdmin/index.phphttp://193.204.78.146/phpMyAdmin/index.php
browse
query
! Password protected !
* filling scripts adapted from a layout developed in Wuppertal
Conclusions
- HSimulation-HReconstruction machinery has been performed with low energy Corsika showers.
- an estimate of the impact of reconstruction efficiency on ICRC 2005 hybrid aperture has been discussed
- A set of HSimulated data are made public on a web page for the interested groups
-resolution of reconstructed variables has been investigated. No significant bias have been detected. The obtained energy resolution (at the level of 12%) confirms the estimate given with FD only simulations and true geometry
Availability of simulated datahttp://auger.le.infn.it/~lorenzo/www/private/hybrid.html.currenthttp://auger.le.infn.it/~lorenzo/www/private/hybrid.html.current
ioauger.rootioauger.root
MC_Truth FD->
FdTriggerSim.log.rootSD ->tank.log.root
XML_files*.xml
