Difference: KDecayPions (9 vs. 10)

Revision 102015-11-20 - DanProtopopescu

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Pions from in-beam Kaon Decay

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  • specify the charged pion decay type in the StandardRun.mac file, at the line with the tag /decay/pichDecay.
    Available charged pion decay types:
    • 0: pi is passed to Geant4;
Changed:
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    • 1: pi-->mu nu;
    • 2: pi-->e nu;
    • 3: pi-->mu nu g;
    • 4: pi-->e nu g;
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    • 1: pi --> e nu;
    • 2: pi --> mu nu;
    • 3: pi --> e nu g;
    • 4: pi --> mu nu g;
  Run the software giving the modified macro file as input parameter, e.g. on an SL6 machine:
Line: 72 to 72
 /tracking/verbose 1
Changed:
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Temporary patch

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Temporary patch (removed in r > 736)

 
Changed:
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  • The generation of the K+ -> pi+pi0, pi+ -> mu+ nu, pi+0 -> gg process is handled in fortran files independent from the NA62MC software. These produce a kdecayggl.txt file containing informations on three final state particles: mu+, gamma, gamma.
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  • The generation of the K+ -> pi+pi0, pi+ -> mu+ nu, pi+0 -> gg process is handled by Fortran code independent from the NA62MC software. This produces a kdecayggl.txt file containing informations on three final state particles: mu+, gamma, gamma.
 
  • In src/PrimaryGeneratorAction.cc a new case has been added, in which the kdecayggl.txt file is read and the three input particles are inserted into the NA62 apparatus.
    In the macros/StandardRun.mac file this option can be selected with /beam/SetBeam PionDecayTest.
    The handling of the new parameter has been implemented in src/PrimaryGeneratorMessenger.cc.
 
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