Pion Absorption and Charge Exchange Cross Section Analysis Outline - PowerPoint PPT Presentation

Pion Absorption and Charge Exchange Cross Section Analysis

Outline ● → ● ● ● ● ● ● 2

Technical Specifications protoduneana protoduneana/singlephase/Pion/PionAnalyzer_module.cc ● ● ● ★ ★ 3

Thin Slice Method ● ○ ● ○ ■ σ ~ 4

Thin Slice Method -- MC Truth 5

Signal & Background Definition 6

Combined Signal Definition 7

Signal Definition ● ● π π 8

Backgrounds π ● ○ ● ● ● ● π ● π ● ○ 9

Background -- Vertex → → 10

Background -- Vertex 11

Event Selection 12

Event Selection - a Flow Chart π ● ● ● ● ● π ● ● ● ● π ➢ π ➢ 13

Event Selection - a Flow Chart π ● ● ● ● ● π ● ● ● ● π ➢ π ➢ 14

Beam Line Selection TPC Incident Reconstructed Beam Track beam particle -- accept this ● Reconstructed ○ cosmic tagged as beam -- reject this ● 15

Event Selection - a Flow Chart π ● ● ● ● ● π ● ● ● ● π ➢ π ➢ 16

Incident Particles π + /μ + π + /μ + ● → 17

Beam Cuts 18

End Position Cut ● ● ★ 19

Event Selection - a Flow Chart π ● ● ● ● ● π ● ● ● ● π ➢ π ➢ 20

Track/Shower Discrimination ● ○ ● → ● → 21

Distance to Vertex → π 22

π -- p Separation χ → π → 23

Event Selection - a Flow Chart π ● ● ● ● ● π ● ● ● ● π ➢ π ➢ 24

Distance to Vertex -- Showers ● ● ● 25

Number of Hits -- Showers 26

Event Selection - Performance 27

Event Selection Cut Flow MC & Data π + /μ + → → → → → 28

Event Selection Cut Flow MC & Data → → → 29

Event Selection Purity and Efficiency ➢ ➢ 30

Next Steps ● ● ○ ● ○ χ ● ● ● ● ○ 31

Some Event Displays for Illustration 32

Data Fun!! 33

Data Fun!! π π ● π ○ ● ● 34

Data Fun!! 35

Data Fun!! ● ○ ● → 36

Thanks for listening! 37

Backup Slides 38

Daughter Calorimetry 39

Event Selection Cut Flow MC & Data 40

deltaZ 41

Shower deltaZ 42