Experimental VAMOS++ AGATA SPIDER Implementation On Nuclear Spectroscopy

User guide of EVASIONS code

Author: C. Fougères (2023) Contact: cfougeres@anl.gov

References

• Understanding the cosmic abundance of 22Na: lifetime measurements in 23Mg (C. Fougères, Thesis, Normandie University, https://hal.science/tel-03768524v1) --> chapter 4
• Search for 22Na in novae supported by a novel method for measuring femtosecond nuclear lifetimes (C. Fougères et al., arXiv preprint, https://doi.org/10.48550/arXiv.2212.06302)

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Requirements

1. linux based operating system or MacOS
2. CERN/ROOT version 6 (see https://root.cern.ch/).
3. g++ compiler
4. git
5. make

(Optional PDF reader)

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Installation

1. Get code at:

git clone https://github.com/CFougeres/EVASIONScode

2. In the main directory 'EVASIONcode/', compile:

make

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Run

./EVASIONSsim +'#5 inputs''

input_1: if codeA for for gamma emission used ==1 (else ==0)
input_2: if codeB for for particle emission used ==1 (else ==0)
input_3: if width determination ==1 (else ==0)
input_4: if saving TTrees ==1 (else ==0)
input_5: if live plots ==1 (else ==0)			--> once opened, click on TCanvas to launch the plot app.
						  	    to stop Enter Ctrl+C in terminal

2 code versions available (see doc/MCalgo.pdf)

• 'CodeA gamma' == {analysis of gamma-rays -- recoil events, velocities profiles, lifetime and total width measurements ...}
• 'CodeB_gparticle' == {analysis of unbound_particle -- recoil events, excitation functions, partial width measurements ...}

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USER INPUTS

• Experiment and physics case general inputs

  Location: 'inputs.dat'

  Rem: parameters names are explicit

• Decay data to be analyzed (based on AGATA-VAMOS-SPIDER experiment)

    Location "data/"
  
    Formalism TChain with "TreeMaster", 
            
            Branches:
                    
                    Brho, Theta, Phi, ThetaLdeg (from VAMOS)
                    
                    CodeA  = trackE, trackX1, trackY1, trackZ1  (from AGATA)
                    
                    CodeB = "particle Si_dE, Si_Eres, Si_theta"  (from SPIDER)	    
  
    Example of extraction root script: "src/functions/Backup/extractionData.C"
  

• Stopping power tables from SRIM [J. F. Ziegler et al., SRIM Co., United States of America 6th (2013)] with S.P. in keV.micron

    Location "src/functions/SP_SRIM/"
  
    5 files in SRIM .txt formalism (see "examples/")
            
            (1) 'beam_in_matter.dat'
        
            (2) 'recoil_in_matter.dat'
    
            (3) 'ejectil_in_matter.dat'
    
            (4) 'particle_in_matter.dat'
    
            (5) 'particle_in_silicon.dat'
  

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Saved data

Location "tree_results/"

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Source codes

• Main

  Location "src/"

• Auxialliaries

  Location "src/functions/"

...

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Compiled version

Location "lib/"