1. A to Zh Tutorial Progress
John W. Spencer

2. Objective
Simulate A to Zh process
Filter out background process

3. Preliminaries / Motivation
To simulate pp > A > Zh process requires a proper framework of software in place
C++ / Linux / ROOT
Obtained through tutorials and practice
Underlying Collider Physics
arxiv.org/pdf/ v2.pdf
cds.cern.ch/record/ /files/HIG pas.pdf

4. Linux, C++, ROOT Crash incapacitates Windows 2003 computer
Running Linux via Cygwin terminal on Windows 7 laptop
Installed / Using Windows version of ROOT6 while setting up Linux

5. MadGraph Responsible for Monte Carlo simulations
Generates events from input models and definitions
MadGraph simulates on parton level
Individual quarks/gluons show up, violating colour
Events output to LHE File

6. Pythia Continues the simulation from MadGraph
Color/charge of partons causes radiation of gluons/leptons, further decays cascade
Output saved to LHE and HEP files
Requires code modification before compiling
Note: This code may not be needed in the future
$ awk '{gsub("LINKS = mass_width_2004.mc pgs clean_output PDFsets pydata.f", "LINKS = mass_width_2004.mc PDFsets pydata.f")}1' Makefile > Makefile_tmp && mv Makefile_tmp Makefile

7. Delphes Takes HEP file as input and outputs ROOT file
Simulates the detector response to the particle shower from earlier stages of simulation
Real detectors have difficulty measuring low pT and high η so Delphes simulates this with variable detection efficiency
Also implements smearing to simulate uncertainty in measured energies/momenta

8. Issues and Difficulties
ROOT cannot compile
“recipe for target 'core/utils/src/rlibmap.o' failed”
Currently looking into solutions
Apparent ROOT/Cygwin compatibility problem
Macros don’t run in ROOT for Windows
Local glitch, works on other windows machines

9. Current Status / Future Goals
Currently finishing Level 1
Resolve technological obstacles and OS problems
Move on to actual simulation within next few days
Work on truth particle study by next week