GMMsciProjectProgress < LinearCollider

---+++ Simulations, Reconstruction and Analysis of HZ-&gt;bbar e-e+ Using Direct Reconstruction

All using ILCSoft version 01-14, with Marlin Processor build details outlined <a href="ILCSoft#Running_a_Marlin_processor_examp" target="_blank">here</a>.

Final report for project is attached as "%RED%Murdoch_Gavin_0900886_ProjectReport_40Credit.pdf%ENDCOLOR%".

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<u> *Simulations:* </u>

Firstly, simulations were ran for stdhep files obtained from *...*. Process and working script available in automating job submission section of <a href="RunMokkaLocally#Automating_job_submission" target="_blank">RunMokkaLocally</a>.
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<u> *Reconstruction:* </u>

Reconstruction utilises the following particle flow algorithms (PFAs): PANDORA and WOLF.

Some !MarlinReco processors are outlined in [[http://ilcsoft.desy.de/MarlinReco/v00-02/manual_html/manual.html][MarlinReco Manual]] however, the attached files are working with the most current processors!! More info on <a href="UsingMarlinReco" target="_blank">UsingMarlinReco</a>.

*PANDORA:*

Attached file "%RED%CLIC_ILD_CDR500_STEERING_POST_PANDORA_AND_TAGGING_def_10000.xml%ENDCOLOR%".

Input all simulated events and be sure to use one of the corresponding gear files (N.B. all will have the same properties). This xml steering file will use the PANDORA PFA and create an output slcio file ready for analysis with MyMarlinProcessor c++ code outlined later.

*WOLF:*

Attached file "%RED%steer_ldc_WOLF_AND_TAGGING_def_10000.xml%ENDCOLOR%".

Same procedure as for PANDORA.
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<u> *ANALYSIS:* </u>

<u>XML STEERING FILE</u>

Using the xml steering files for either PANDORA or WOLF, comment out all processors and uncomment the "MyMarlinProcessor"(specific naming for my analysis processor and c++ code). Be sure to change the input slcio file to the output slcio created when utilising the PFAs.

<u>C++ ANALYSIS CODE</u>

My analysis looks at Z-&gt;e-e+ and H-&gt;b bbar using direct reconstruction. Attached files "%RED%MarlinProcessor.cc%ENDCOLOR%" and "%RED%MarlinProcessor.h%ENDCOLOR%".

*NECESSARY CHANGES TO C++ CODE:*

PANDORA and WOLF output different MC particles collections so have to use which is required in the analysis code, PANDORA and WOLF respectively:

<span style="color: mediumslateblue;">if(*name=="MCParticle"){</span>

<span style="color: mediumslateblue;">//if(*name=="MCParticlesSkimmed"){</span>

PANDORA and WOLF call different functions in the analysis code:

PANDORA requires only these two:

<span style="color: slateblue;">if(_HbbMC.size()==2)this-&gt;AnalyseFourJetEvent(); //Analyse only when MC b bar from the Higgs was found</span><br /><span style="color: slateblue;">this-&gt;AnalyseEmEp(); //Z reconstruction and e- e+ energy resolutions</span>

WOLF requires only these two:

<span style="color: slateblue;">// if(_RecoParvec.size()!=0)this-&gt;AnalyseRecoParticlesEvent();</span><br /><span style="color: slateblue;">// if(_HbbMC.size()==2 && _fourjetvec.size()==4)this-&gt;AnalyseWOLFFourJetEvent(); //Analyse only when MC b bar from the Higgs was found</span>
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Attachments

Topic attachments
I	Attachment	History	Action	Size	Date	Who
xml	CLIC_ILD_CDR500_STEERING_PANDORA_AND_TAGGING_def_10000.xml	r1	manage	95.0 K	2014-06-18 - 12:32	GavinMurdoch
cc	MarlinProcessor.cc	r1	manage	90.1 K	2014-06-18 - 12:32	GavinMurdoch
h	MarlinProcessor.h	r1	manage	7.0 K	2014-06-18 - 12:32	GavinMurdoch
pdf	Murdoch_Gavin_0900886_ProjectReport_40Credit.pdf	r1	manage	881.7 K	2014-06-18 - 12:49	GavinMurdoch
xml	steer_ldc_WOLF_AND_TAGGING_def_10000.xml	r1	manage	22.6 K	2014-06-18 - 12:32	GavinMurdoch

This topic: LinearCollider > WebHome > GMMsciProjectProgress
Topic revision: r3 - 2014-06-18 - GavinMurdoch