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Question PiMinusAbsorptionBertini multiple calls 

Forum: Hadronic Processes
Date: 10 Jun, 2012
From: Sam <Sam>

Hello,

I have low energy (< 20 MeV) pi- inside of a deuterium target and I am simulating their absorption using the Bertini model. When examining the output from /tracking/verbose 1, I see the pi- scatter until rest where it calls PiMinusAbsorptionBertini.

   16  -2.93 cm   3.12 mm  -3.03 cm      0 eV      0 eV      0 fm   1.66 cm     D2target  PiMinusAbsorptionBertini

But it then proceeds to create more pi- with 1 KeV, which scatter and then undergo PiMinusAbsorptionBertini.

*********************************************************************************************************
* G4Track Information:   Particle = pi-,   Track ID = 4,   Parent ID = 1
*********************************************************************************************************

Step#      X         Y         Z        KineE    dEStep   StepLeng  TrakLeng    Volume     Process
    0  -2.93 cm   3.12 mm  -3.03 cm      1 keV     0 eV      0 fm      0 fm     D2target    initStep
    1  -2.93 cm   3.12 mm  -3.03 cm      0 eV      1 keV   714 nm    714 nm     D2target       hIoni
    2  -2.93 cm   3.12 mm  -3.03 cm      0 eV      0 eV      0 fm    714 nm     D2target  PiMinusAbsorptionBertini

*********************************************************************************************************
* G4Track Information:   Particle = pi-,   Track ID = 7,   Parent ID = 4
*********************************************************************************************************

Step#      X         Y         Z        KineE    dEStep   StepLeng  TrakLeng    Volume     Process
    0  -2.93 cm   3.12 mm  -3.03 cm      1 keV     0 eV      0 fm      0 fm     D2target    initStep
    1  -2.93 cm   3.12 mm  -3.03 cm      0 eV      1 keV   714 nm    714 nm     D2target       hIoni
    2  -2.93 cm   3.12 mm  -3.03 cm      0 eV      0 eV      0 fm    714 nm     D2target  PiMinusAbsorptionBertini

....

I am confused as to why there is more then one absorption event?

Thank you very much,

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1 None: Re: PiMinusAbsorptionBertini multiple calls   (Michael H. Kelsey - 10 Jun, 2012)
(_ None: Re: PiMinusAbsorptionBertini multiple calls   (Sam - 11 Jun, 2012)
1 None: Re: PiMinusAbsorptionBertini multiple calls   (Michael H. Kelsey - 11 Jun, 2012)
1 None: Re: PiMinusAbsorptionBertini multiple calls   (Sam - 11 Jun, 2012)
... 1 Message(s)
2 None: Re: PiMinusAbsorptionBertini multiple calls -- bug in 9.5-patch-01 version   (Michael H. Kelsey - 11 Jun, 2012)
1 Ok: Re: PiMinusAbsorptionBertini multiple calls -- bug in 9.5-patch-01 version   (Michael H. Kelsey - 12 Jun, 2012)
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