Hadronic showers / missing energy in protoDUNE Pawel Guzowski - PowerPoint PPT Presentation

Hadronic showers / missing energy in protoDUNE Pawel Guzowski

Outline • Particle gun MC of pions and protons • Studying the MC true energy deposited in protodune • Quantifying energy associated to primary, and to neutral secondaries (photons, neutrons) • Examining how much of the true energy ends up as a reconstructed hit, and reconstructed clusters by 4 reconstruction modules – lineclusterdc, linecluster, pandoradc, pandora Pawel Guzowski 31 Oct 2016 2

larsoft workflow • Using dunetpc v05_13_00 – protodune_v2 geometry • protoDUNE_gensingle.fcl – Pion or proton, 0.1 – 3.0 GeV – x: 118.106 cm, y: 395.649 cm, z: 0 cm • protoDUNE_g4single.fcl • protoDUNE_detsim_single.fcl – Optical simulation is off, to save time • protoDUNE_reco.fcl • No cosmics / multiparticle events Pawel Guzowski 31 Oct 2016 3

Analysis • For now, only looking at the true energy deposits • Associating each energy deposit to – Primary – Neutrons – and subsequent daughters – Photons – and subsequent daughters • Calculating the fraction of energy deposited into those three categories • Calculating how much of this true energy ends up in a reconstructed hit Pawel Guzowski 31 Oct 2016 4

1.2 GeV pion 99% of energy associated to primary p i o n photon-associated deposits primary-associated deposits positron Points are true G4 energy deposits Pawel Guzowski 31 Oct 2016 5

1.2 GeV pion 74% of energy associated to photons pi-zero Neutron-associated deposits Pawel Guzowski 31 Oct 2016 6

1.2 GeV pion 73% of energy associated to neutrons Pawel Guzowski 31 Oct 2016 7

MC True particles Green lines = photons Soft neutrons scattering around everywhere Pawel Guzowski 31 Oct 2016 8

3.0 GeV proton Hard neutron Pawel Guzowski 31 Oct 2016 9

PIONS Pawel Guzowski 31 Oct 2016 10

Pion energy deposit Line = mean Total Primary Neutrons Photons Area = RMS Pawel Guzowski 31 Oct 2016 11

Fractional components Primary Neutrons Photons Pawel Guzowski 31 Oct 2016 12

Reconstructed hits Energy ending up in a recob::Hit Total Primary Neutrons Photons Pawel Guzowski 31 Oct 2016 13

Reconstructed fraction ~100% ~85% ~80% ~60% Total Primary Neutrons Photons Pawel Guzowski 31 Oct 2016 14

lineclusterdc Clusters Total Primary Neutrons Photons Pawel Guzowski 31 Oct 2016 15

linecluster Clusters ~90% ~70% ~55% ~30% Pawel Guzowski 31 Oct 2016 16

pandoradc Clusters Total Primary Neutrons Photons Pawel Guzowski 31 Oct 2016 17

pandora Clusters ~90% ~60% ~50% ~20% Pawel Guzowski 31 Oct 2016 18

PROTONS Pawel Guzowski 31 Oct 2016 19

Proton energy deposit Total Primary Neutrons Photons Pawel Guzowski 31 Oct 2016 20

Fractional components Primary Neutrons Photons Pawel Guzowski 31 Oct 2016 21

Reconstructed hits Energy ending up in a recob::Hit Total Primary Neutrons Photons Pawel Guzowski 31 Oct 2016 22

Reconstructed fraction ~100% ~85% ~70% ~65% Total Primary Neutrons Photons Pawel Guzowski 31 Oct 2016 23

lineclusterdc Clusters Total Primary Neutrons Photons (statistical fluctuation, one entry) Pawel Guzowski 31 Oct 2016 24

linecluster Clusters ~90% ~70% ~40% ~30% Pawel Guzowski 31 Oct 2016 25

pandoradc Clusters Total Primary Neutrons Photons Pawel Guzowski 31 Oct 2016 26

pandora Clusters ~90% ~60% ~30% ~20% Pawel Guzowski 31 Oct 2016 27

Summary • ~100% of primary energy deposit is reconstructed in hits • ~40% of neutron energy is lost • ~30% of photon energy is lost • Even more energy is unclustered • Pandora doing worse than linecluster • No difference between ‘dc’ and non-‘dc’ Pawel Guzowski 31 Oct 2016 28

BACKUPS Pawel Guzowski 31 Oct 2016 29

Total E deposit for 1.0 GeV pion Mean = 0.8 RMS = 0.1 Pawel Guzowski 31 Oct 2016 30