Difference: PID-PidAlgStandCuts (1 vs. 14)

Revision 14
03 Jul 2007 - Main.JacekOtwinowski
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META TOPICPARENT name="TeachingWorkshop"
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The e- and e+ identification by using HPidAlgStandCuts algorithm

There are several PID algorithms implemented in the HYDRA package which are used to identify particle species. One of them is HPidAlgStandCuts algorithm which can be used to identify e+/e- from elementary and heavy ion collisions. At the moment this algorithm uses information (observables) provided by RICH (ring properties), MDC (momentum, track length), TOF/TOFino (tof) and PreShower (elctromagnetic shower properties) detectors. The RICH detector plays a crutial role in e+/e- identification in the HADES spectrometer because it is almost blind to hadrons at beam energies of 1-2 AGeV. Thus, each electron candidate must have correlated signal in the RICH detector. It is realised by requiring the angular correlation between RICH and inner MDC segment.
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  • Example of the executable program to run PID by using HPidAlgStanCuts algorithm: program
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Example of programs

executable program to run PID by using HPidAlgStanCuts algorithm
 

-- JacekOtwinowski - 25 Jun 2007
Revision 7
27 Jun 2007 - Main.JacekOtwinowski
Line: 1 to 1
 
META TOPICPARENT name="TeachingWorkshop"

The e- and e+ identification by using HPidAlgStandCuts algorithm

Added:
>
>
There are several PID algorithms implemented in the HYDRA package which are used to identify particle species. One of them is HPidAlgStandCuts algorithm which can be used to identify e+/e- from elementary and heavy ion collisions. At the moment this algorithm uses information (observables) provided by RICH (ring properties), MDC (momentum, track length), TOF/TOFino (tof) and PreShower (elctromagnetic shower properties) detectors. The RICH detector plays a crutial role in e+/e- identification in the HADES spectrometer because it is almost blind to hadrons at beam energies of 1-2 AGeV. Thus, each electron candidate must have correlated signal in the RICH detector. It is realised by requiring the angular correlation between RICH and inner MDC segment.
 
ElectronID

e+/e- signal eveluation in RICH

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The RICH ring properties used in HPidAlgStandCuts for e+/e- identification.
 
RichElectronID

e+/e- identification in PreShower

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The PreShower observables used in HPidAlgStandCuts for e+/e- identification.
 
PreShowerElectronID

HPidAlgStandCutsPar parameter container

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META FILEATTACHMENT attr="" comment="RichElectronID" date="1182771822" name="RichElectronID.gif" path="C:\Documents and Settings\User\Moje dokumenty\HADES_DOC\Training Analysis Workshop GSI\RichElectronID.gif" size="63486" user="JacekOtwinowski" version="1.1"
META FILEATTACHMENT attr="" comment="PreShowerElectronID" date="1182771892" name="PreShowerElectronID.gif" path="C:\Documents and Settings\User\Moje dokumenty\HADES_DOC\Training Analysis Workshop GSI\PreShowerElectronID.gif" size="42528" user="JacekOtwinowski" version="1.1"
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META FILEATTACHMENT attr="" comment="ElectronID" date="1182774542" name="ElectronID.gif" path="C:\Documents and Settings\User\Moje dokumenty\HADES_DOC\Training Analysis Workshop GSI\ElectronID.gif" size="56537" user="JacekOtwinowski" version="1.1"
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META FILEATTACHMENT attr="" comment="ElectronID" date="1182861687" name="ElectronID.gif" path="C:\Documents and Settings\User\Moje dokumenty\HADES_DOC\Training Analysis Workshop GSI\ElectronID.gif" size="56926" user="JacekOtwinowski" version="1.1"
Revision 5
26 Jun 2007 - Main.JacekOtwinowski
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META TOPICPARENT name="TeachingWorkshop"