Muon insert (#71)

Co-authored-by: Dmitry Kalinkin <dmitry.kalinkin@gmail.com>

.gitlab-ci.yml

@@ -147,11 +147,11 @@ include:
   - local: 'benchmarks/pid/config.yml'
   - local: 'benchmarks/timing/config.yml'
   - local: 'benchmarks/b0_tracker/config.yml'
+  - local: 'benchmarks/insert_muon/config.yml'
   - local: 'benchmarks/zdc_sigma/config.yml'
   - local: 'benchmarks/zdc_lambda/config.yml'
   - local: 'benchmarks/insert_neutron/config.yml'
 
-
 deploy_results:
   allow_failure: true
   stage: deploy
@@ -171,6 +171,7 @@ deploy_results:
     - "collect_results:tracking_performances_dis"
     - "collect_results:zdc"
     - "collect_results:zdc_lyso"
+    - "collect_results:insert_muon"
     - "collect_results:zdc_photon"
     - "collect_results:zdc_pi0"
   script:

Snakefile

@@ -7,6 +7,8 @@ include: "benchmarks/ecal_gaps/Snakefile"
 include: "benchmarks/material_scan/Snakefile"
 include: "benchmarks/tracking_performances/Snakefile"
 include: "benchmarks/tracking_performances_dis/Snakefile"
+include: "benchmarks/zdc_lyso/Snakefile"
+include: "benchmarks/insert_muon/Snakefile"
 include: "benchmarks/zdc_lambda/Snakefile"
 include: "benchmarks/zdc_lyso/Snakefile"
 include: "benchmarks/zdc_photon/Snakefile"

benchmarks/insert_muon/Snakefile

+rule insert_muon_generate:
+	input:
+                script="benchmarks/insert_muon/analysis/gen_particles.cxx",
+	params:
+		NEVENTS_GEN=5000,
+		th_max=7.0,
+		th_min=1.7
+	output:
+		GEN_FILE="sim_output/insert_muon/mu-_{P}GeV.hepmc"
+	shell:
+		"""
+root -l -b -q '{input.script}({params.NEVENTS_GEN},"{output.GEN_FILE}", "mu-", {params.th_min}, {params.th_max}, 0., 360., {wildcards.P})'
+"""
+
+rule insert_muon_simulate:
+	input:
+		GEN_FILE="sim_output/insert_muon/mu-_{P}GeV.hepmc"
+	params:
+		PHYSICS_LIST="FTFP_BERT"
+	output:
+		SIM_FILE="sim_output/insert_muon/{DETECTOR_CONFIG}_sim_mu-_{P}GeV.edm4hep.root"
+	shell:
+		"""
+NEVENTS_SIM=5000
+# Running simulation
+npsim \
+   --compactFile $DETECTOR_PATH/{wildcards.DETECTOR_CONFIG}.xml \
+   --numberOfEvents $NEVENTS_SIM \
+   --physicsList {params.PHYSICS_LIST} \
+   --inputFiles {input.GEN_FILE} \
+   --outputFile {output.SIM_FILE}
+"""
+
+rule insert_muon_recon:
+        input:
+                SIM_FILE="sim_output/insert_muon/{DETECTOR_CONFIG}_sim_mu-_{P}GeV.edm4hep.root"
+        output:
+                REC_FILE="sim_output/insert_muon/{DETECTOR_CONFIG}_rec_mu-_{P}GeV.edm4hep.root"
+        shell:
+                """
+NEVENTS_REC=5000
+eicrecon {input.SIM_FILE} -Ppodio:output_file={output.REC_FILE} -Pdd4hep:xml_files=$DETECTOR_PATH/{wildcards.DETECTOR_CONFIG}.xml -Ppodio:output_collections=MCParticles,HcalEndcapPInsertRecHits,HcalEndcapPInsertClusters,HcalEndcapPInsertSubcellHits,EcalEndcapPInsertRecHits,EcalEndcapPInsertClusters  -Pjana:nevents=$NEVENTS_REC
+"""
+
+rule insert_muon_analysis:
+	input:
+                expand("sim_output/insert_muon/{DETECTOR_CONFIG}_sim_mu-_{P}GeV.edm4hep.root",
+		    P=[50],
+		    DETECTOR_CONFIG=["{DETECTOR_CONFIG}"]),
+                script="benchmarks/insert_muon/analysis/muon_plots.py",
+	output:
+		results_dir=directory("results/{DETECTOR_CONFIG}/insert_muon"),
+	shell:
+		"""
+mkdir -p {output.results_dir}
+python {input.script} {output.results_dir}
+"""

benchmarks/insert_muon/analysis/gen_particles.cxx

+#include "HepMC3/GenEvent.h"
+#include "HepMC3/ReaderAscii.h"
+#include "HepMC3/WriterAscii.h"
+#include "HepMC3/Print.h"
+
+#include "TRandom3.h"
+#include "TVector3.h"
+
+#include <iostream>
+#include <random>
+#include <cmath>
+#include <math.h>
+#include <TMath.h>
+#include <TDatabasePDG.h>
+#include <TParticlePDG.h>
+
+using namespace HepMC3;
+
+// Generate single electron as input to the Insert simulation.
+// --
+// We generate events with a constant polar angle with respect to
+// the proton direction and then rotate so that the events are given
+// in normal lab coordinate system
+// --
+void gen_particles(
+                    int n_events = 1000, 
+                    const char* out_fname = "gen_particles.hepmc", 
+                    TString particle_name = "e-",
+                    double th_min = 3., // Minimum polar angle, in degrees
+		    double th_max = 3., // Maximum polar angle, in degrees
+		    double phi_min = 0., // Minimum azimuthal angle, in degrees
+                    double phi_max = 360., // Maximum azimuthal angle, in degrees
+                    double p = 10.,  // Momentum in GeV/c
+		    int dist = 0,  //Momentum distribution: 0=fixed, 1=uniform, 2=Gaussian
+		    int useCrossingAngle=1  // 0= no rotation, 1 = -25 mrad
+                  )
+{ 
+  WriterAscii hepmc_output(out_fname);
+  int events_parsed = 0;
+  GenEvent evt(Units::GEV, Units::MM);
+
+  // Random number generator
+  TRandom3 *r1 = new TRandom3(0); //Use time as random seed
+  
+  // Getting generated particle information
+  TDatabasePDG *pdg = new TDatabasePDG();
+  TParticlePDG *particle = pdg->GetParticle(particle_name);
+  const double mass = particle->Mass();
+  const int pdgID = particle->PdgCode();
+
+  for (events_parsed = 0; events_parsed < n_events; events_parsed++) {
+
+    //Set the event number
+    evt.set_event_number(events_parsed);
+
+    // FourVector(px,py,pz,e,pdgid,status)
+    // type 4 is beam
+    // pdgid 11 - electron
+    // pdgid 111 - pi0
+    // pdgid 2212 - proton
+    GenParticlePtr p1 =
+        std::make_shared<GenParticle>(FourVector(0.0, 0.0, 10.0, 10.0), 11, 4);
+    GenParticlePtr p2 = std::make_shared<GenParticle>(
+        FourVector(0.0, 0.0, 0.0, 0.938), 2212, 4);
+
+    // Define momentum with respect to proton direction
+    double phi   = r1->Uniform(phi_min*TMath::DegToRad(),phi_max*TMath::DegToRad());
+    double th    = r1->Uniform(th_min*TMath::DegToRad(),th_max*TMath::DegToRad());
+
+    //Total momentum distribution
+    double pevent = -1;
+    if(dist==0){ //fixed
+	pevent = p;
+    }
+    else if(dist==1){ //Uniform: +-50% variation
+	pevent = p*(1. + r1->Uniform(-0.5,0.5) );
+    }
+    else if(dist==2){  //Gaussian: Sigma = 0.1*mean
+	while(pevent<0) //Avoid negative values
+		pevent = r1->Gaus(p,0.1*p);
+    }
+
+    double px    = pevent * std::cos(phi) * std::sin(th);
+    double py    = pevent * std::sin(phi) * std::sin(th);
+    double pz    = pevent * std::cos(th);
+    TVector3 pvec(px,py,pz); 
+
+    //Rotate to lab coordinate system
+    double cross_angle = -25./1000.*useCrossingAngle; //in Rad
+    TVector3 pbeam_dir(sin(cross_angle),0,cos(cross_angle)); //proton beam direction
+    pvec.RotateY(-pbeam_dir.Theta()); // Theta is returned positive, beam in negative X
+    // type 1 is final state
+    // pdgid 11 - electron 0.510 MeV/c^2
+    GenParticlePtr p3 = std::make_shared<GenParticle>(
+        FourVector(
+            pvec.X(), pvec.Y(), pvec.Z(),
+            sqrt(pevent*pevent + (mass * mass))),
+        pdgID, 1);
+
+    //If wanted, set non-zero vertex
+    double vx = 0.;
+    double vy = 0.;
+    double vz = 0.;
+    double vt = 0.;
+
+    GenVertexPtr v1 = std::make_shared<GenVertex>();
+    evt.shift_position_by(FourVector(vx, vy, vz, vt));
+    v1->add_particle_in(p1);
+    v1->add_particle_in(p2);
+
+    v1->add_particle_out(p3);
+    evt.add_vertex(v1);
+
+    if (events_parsed == 0) {
+      std::cout << "First event: " << std::endl;
+      Print::listing(evt);
+    }
+
+    hepmc_output.write_event(evt);
+    if (events_parsed % 100 == 0) {
+      std::cout << "Event: " << events_parsed << std::endl;
+    }
+    evt.clear();
+  }
+  hepmc_output.close();
+  std::cout << "Events parsed and written: " << events_parsed << std::endl;
+}

benchmarks/insert_muon/analysis/muon_plots.py

+import numpy as np, pandas as pd, matplotlib.pyplot as plt, matplotlib as mpl, awkward as ak, sys
+import mplhep as hep
+hep.style.use("CMS")
+
+plt.rcParams['figure.facecolor']='white'
+plt.rcParams['savefig.facecolor']='white'
+plt.rcParams['savefig.bbox']='tight'
+
+plt.rcParams["figure.figsize"] = (7, 7)
+
+config=sys.argv[1].split("/")[1]  #results/{config}/{benchmark_name}
+outdir=sys.argv[1]+"/"
+try:
+    import os
+    os.mkdir(outdir[:-1])
+except:
+    pass
+
+def Landau(x, normalization,location,stdev):
+    #print(type(x))
+    u=(x-location)*3.591/stdev/2.355
+    renormalization = 1.64872*normalization
+    return renormalization * np.exp(-u/2 - np.exp(-u)/2)
+
+import uproot as ur
+arrays_sim={}
+momenta=50,
+for p in momenta:
+    filename=f'sim_output/insert_muon/{config}_sim_mu-_{p}GeV.edm4hep.root'
+    print("opening file", filename)
+    events = ur.open(filename+':events')
+    arrays_sim[p] = events.arrays()
+    import gc
+    gc.collect()
+    print("read", filename)
+
+for array in arrays_sim.values():
+    tilt=-0.025
+    px=array['MCParticles.momentum.x'][:,2]
+    py=array['MCParticles.momentum.y'][:,2]
+    pz=array['MCParticles.momentum.z'][:,2]
+    p=np.sqrt(px**2+py**2+pz**2)
+    
+    pxp=px*np.cos(tilt)-pz*np.sin(tilt)
+    pyp=py
+    pzp=pz*np.cos(tilt)+px*np.sin(tilt)
+    
+    array['eta_truth']=1/2*np.log((p+pzp)/(p-pzp))
+    array['phi_truth']=np.arctan2(pyp,pxp)
+    
+for p in 50,:
+    E=arrays_sim[p]["HcalEndcapPInsertHits.energy"]
+    y, x,_=plt.hist(1e3*ak.flatten(E),bins=100, range=(0, 1.2), histtype='step')
+    bc=(x[1:]+x[:-1])/2
+    from scipy.optimize import curve_fit
+    slc=abs(bc-.48)<.15
+    fnc=Landau
+    p0=[100, .5, .05]
+    #print(list(y), list(x))
+    coeff, var_matrix = curve_fit(fnc, list(bc[slc]), list(y[slc]), p0=p0,
+                                 sigma=list(np.sqrt(y[slc])+(y[slc]==0)))
+    print(coeff)
+    xx=np.linspace(0,.7, 100)
+    MIP=coeff[1]/1000
+    plt.plot(xx, fnc(xx,*coeff), label=f'Landau fit:\nMIP={coeff[1]*1e3:.0f}$\\pm${1e3*np.sqrt(var_matrix[1][1]):.0f} keV')
+    plt.xlabel("hit energy [MeV]")
+    plt.ylabel("hits")
+    plt.title(f"$E_{{\\mu^-}}=${p} GeV")
+    plt.legend(fontsize=20)
+    plt.savefig(outdir+"/MIP.pdf")
+
+    plt.figure(figsize=(10,7))
+    array=arrays_sim[p]
+    bins=30; r=((-np.pi, np.pi),(2.8, 4.2))
+    selection=np.sum(array["HcalEndcapPInsertHits.energy"]>0.5*MIP,axis=-1)>0
+    h1, xedges, yedges = np.histogram2d(list(array[selection]['phi_truth']),list(array[selection]['eta_truth']), bins=bins, range=r)
+    h2, xedges, yedges = np.histogram2d(list(array['phi_truth']),list(array['eta_truth']), bins=bins, range=r)
+
+    h = h1 / h2
+    pc=plt.pcolor(xedges, yedges, h.T,linewidth=0)
+    plt.xlabel("$\\phi^*$ [rad]")
+    plt.ylabel("$\\eta^*$")
+    cb = plt.colorbar(pc)
+    cb.set_label("acceptance")
+    plt.title(f"$E_{{\\mu^-}}=${p} GeV")
+    plt.savefig(outdir+"/acceptance.pdf")

benchmarks/insert_muon/config.yml

+sim:insert_muon:
+  stage: simulate
+  extends: .det_benchmark
+  needs: ["common:detector"]
+  parallel:
+    matrix:
+      - P: 50
+  timeout: 1 hours
+  script:
+    - snakemake --cores 1 sim_output/insert_muon/epic_craterlake_sim_mu-_${P}GeV.edm4hep.root 
+  retry:
+    max: 2
+    when:
+      - runner_system_failure
+
+bench:insert_muon:
+  stage: benchmarks
+  extends: .det_benchmark
+  needs: ["sim:insert_muon"]
+  script:
+    - snakemake --cores 1 results/epic_craterlake/insert_muon
+
+collect_results:insert_muon:
+  stage: collect
+  needs: ["bench:insert_muon"]
+  script:
+    - ls -al
+    - mv results{,_save}/ # move results directory out of the way to preserve it
+    - snakemake --cores 1 --delete-all-output results/epic_craterlake/insert_muon
+    - mv results{_save,}/