Overview

Teaching: 0 min
Exercises: 120 min

Questions

• Information and objectives for tasks 7-8

Objectives

• Find the final two parts of the file name!

Task 7 - Exploring a Reconstructed Output File

In this task, we will take a closer look at the branches contained within a reconstruction file. You may find lesson 2 of the analysis tutorial to be useful here if you have not looked at analysis files before.

Exercise:

• Using the file - epic:/RECO/25.10.2/epic_craterlake/EXCLUSIVE/UCHANNEL_PI0/18x275/pi0_18x275_uChannel_Q2of0to10_hiDiv.0104.eicrecon.edm4eic.root, do the following:
• Check the number of branches this file contains
  • Find the number of branches that contain ZDC within their name, do not include branches that begin with _
  • Check how many elements the “ReconstructedFarForwardZDCNeutrals” branch collection has
  • Select the corresponding values in the answer checker at the bottom of this page to get your clue for task 7!

Task 8 - Using MC Particles

In this task, we will do a basic analysis of some information contained within a reconstruction file. Namely, we will look at the inforrmation in the MCParticles branch. Accessing the truth information is very important in simulation studes. You may find lesson 3 of the analysis tutorial to be useful here if you have not looked at analysis files before.

Exercise:

• Using the file - epic:/RECO/25.10.2/epic_craterlake/EXCLUSIVE/UCHANNEL_PI0/18x275/pi0_18x275_uChannel_Q2of0to10_hiDiv.0104.eicrecon.edm4eic.root, the same as Task 7, do the following using the MCParticles branch:
  • Determine the number of stable, final state electrons that have an associated reconstructed particle
  • Determine the number of stable, final state photons that have an associated reconstructed particle
  • Enter your corresponding values into the answer checker at the bottom of the page to get your clue for task 8!

Comment:

• You will need to utilise the ReconstructedParticleAssociations collection to find whether your MC particles have an associated reconstructed particle or not.

Answer Checker

Key Points