- Lecture slides
- https://misho104.github.io/FeynLecture/
- Materials for “Lecture A”
- https://github.com/misho104/FeynLecture
- Short URL for this page
- http://bit.ly/MishoFeynLecture

### Overview

This is an introductory course of computer-based collider physics.

This course consists of two lectures. Lecture A focuses on how to use the FeynArts+FormCalc+LoopTools suite, which is widely used for automatic calculation of scattering amplitudes, as well as FeynRules, which helps to express your model (Lagrangian) in computer codes.

Lecture B is a very basic introduction of MadGraph5, i.e., collider simulation. A brief introduction of how to analyze the generated events using Python codes are also included.

#### Goal

In **Lecture A**, you will learn how to automate your Feynman-diagram calculation.

- Using
**FeynArts**, you can automatically generate Feynman diagrams for any Standard Model processes. - Using
**FormCalc**, you can automatically calculate the tree-level amplitudes of 2-to-2 Standard Model processes. - Using FormCalc and LoopTools, you can automatically calculate 1-loop level amplitudes of simple Standard Model processes.
- You have a basic idea of how to implement your model with FeynRules.
- You can perform the amplitude calculation above with your implemented FeynRules model.

In **Lecture B**, you will learn the basic idea of collider simulation using **MadGraph5**.

- You can explain what the term “Monte Carlo simulation” means.
- You can calculate the cross section of basic Standard Model process.
- With FeynRules, you can calculate the cross section of simple processes in (theoretically-) “any” models.
- You have a basic understanding of [[Pythia]]/[[Delphes]] detector simulation.
- You can invoke [[Pythia]]/[[Delphes]] detector simulation.
- You have a basic idea of how to analyze the generated events, using [[Python]].

#### Historical Information

Lecture A is based on the lecture I gave in February 2012 at Osaka University with request from Odakin. It was designed as 2.5 days lecture, and it took 16 hours including the environment set-up.

Then, in October 2016 I was asked by Seong Chan to give a 4-day lecture course in Yonsei University, when I also include Lecture B.

### Lecture Materials

Lecture slides are summarized in GitHub Page. Materials for “Lecture A” is maintained on GitHub. See releases for archive files.

#### Lecture A: Automated analytic calculation of matrix elements

- Lecture 0 : Mathematica Basic
- Lecture 1 : Tree-level Calculation with FeynArts / FormCalc
- Lecture1-1.nb: the very first step in QED
- Lecture1-2.nb: do it again! : in QED
- Lecture1-3.nb: and again! : in QED
- Lecture1-4.nb: All about tree-level : QCD processes
- Lecture1-ex.nb: Exercises
- Lecture1-ex-ex.nb: Extra Exercises

- Lecture 2 : To Create a New Model File with FeynRules
- Lecture2-1.nb: what should we do to handle a new model?
- Lecture2-2.nb: an example: -theory
- Lecture2-3.nb: QCD calculation with FeynRules

- Lecture 3 : Loop-level calculation
- Lecture3-1.nb: a simple (but uneasy and subtle) example “QCD box diagrams”
- Lecture3-hgg.nb: phenomenologically interesting example
- Lecture3-ex-eevh.nb: Exercises

#### Lecture B: Monte Carlo simulation

- Lecture 0 : What is Monte Carlo simulation?
- Lecture 1 : MadGaraph5 basic
- , the most boring example
- Theoretical knowledge

- Lecture 2 : MadGaraph5 basic-plus
- How to use other models?
- MSSM cross sections

- Lecture 3 : Detector simulation with Pythia-PGS + Delphes
- Lecture 4 : Analysis

### Schedule

#### Oct. 2016 Yonsei University

- Oct. 11 (Tue) 10:00‒12:00 (615B)
- Installation help-desk (Lecture 0: precourse work)
- Oct. 11 (Tue) 17:00‒19:00 (352)
- Lecture A-1: FA+FC Tree-level amplitude
- Oct. 12 (Wed) 10:00‒12:00 (B101)
- Lecture B-1: MG5 Standard Model Tree-level
- Oct. 12 (Wed) 17:00‒19:00 (352)
- Lecture A-2: FeynRules for your own model
- Oct. 13 (Thu) 10:00‒12:00 (615B)
- Lecture B-2: MG5 for other models
- Oct. 13 (Thu) 17:00‒19:00 (352)
- Lecture A-3: LoopTools
- Oct. 14 (Fri) 10:00‒12:00 (615B)
- extra topics? (CheckMATE / MadAnalysis / SM.fr)
- Oct. 14 (Fri) 17:00‒19:00 (352)
- extra topics? (CheckMATE / MadAnalysis / SM.fr)

#### Feb. 2012 Osaka University

- Feb. 8 (Wed) morning
- Installation help-desk and Lecture 0: precourse work
- Feb. 8 (Wed) afternoon + Feb. 9 (Thu) morning
- Lecture A-1: FA+FC Tree-level amplitude
- Feb. 9 (Thu) afternoon + Feb. 10 (Fri) morning
- Lecture A-2: FeynRules for your own model
- Feb. 10 (Fri) afternoon
- Lecture A-3: LoopTools

### Installation Tips

As you know, you have to `AppendTo[$Path, /the/directory/of/the/packages]`

to use FeynArts etc. You can use this `$Path` as the default configuration if you add these commands into the "initialization file" found in `$HOME/.Mathematica/Kernel/init.m`, `$HOME/Library/Mathematica/Kernel/init.m`, etc. (depending on the platform).

Actually I installed all the packages I use in `$HOME/Documents/Mathematica/lib/`

, and wrote the following commands in `init.m`

:

Global`$LibDirectory=FileNameJoin[{$HomeDirectory, "Documents", "Mathematica", "lib"}] AppendTo[$Path, Global`$LibDirectory]; $Path = Join[$Path, Select[FileNames["*", Global`$LibDirectory], FileType[#] == Directory &]];

which add all the directories `$HOME/Documents/Mathematica/lib/*`

into `$Path`.