Matter / ANTIMATTER 
AT  LHC
 
MISSIOn STATEMENT
you will analyse data taken by the Large Hadron Collider (LHC) at CERN AND DISCOVER A FUNDAMENTAL difference in the behaviour of matter and antimatter

The LHCb Experiment at CERN.

The LHCb experiment is the dedicated experiment at the LHC to study matter antimatter asymmetries.


Image Credit:CERN

BACKGROUND KNOWLEDGE

This project will enable you to carry out your own data analysis at a level similar to that of CERN research.


This project does not require a detailed knowledge of particle physics. It is most suitable for people with a scientific and mathematical background similar to that required for applying for university entrance in a science, technology, engineering or mathematics subject. Some previous familiarity with computer programming would also be advantageous. Links to additional theoretical information or programming knowledge are provided as the project progresses.


The project goes through the steps to perform a particle physics analysis. It is organised in a number of stages. Each of this stages has a clear aim and may take you several hours to complete. You can save your work and come back to the project when you wish.

PROJECT DETAILS
In this project you will analyse particles containing the b (or beauty) quark and its anti-particle. 

In this project we will be studying the decays of the B+ and B- mesons. A meson is a composite particle containing a quark and an anti-quark.  A B+ is composed of an u (up) quark and an anti-b (beauty) quark. A B- is the anti-particle of the B+. It is composed of an anti-u (up) quark and a b (beauty) quark.

In this analysis we will study the decays of the B+ and B- mesons into three charged kaons (K+ or K-). The K+ is a meson composed of a u and and anti-s (strange) quark. The K- is its anti-particle. 

In this project you will study the decays:

B+ → K+K+K−

and the anti-particle equivalent

B- → K-K-K+

You will compare the rates of these to investigate differences in the behaviour of matter and antimatter. The project is based on published physics papers by the LHCb collaboration.

There are many possible extensions and alternative analyses that you can perform with the LHCb data set that you are provided. Some of these are described at the end of the project.

GETTING STARTED

Please download this pdf file and follow the instructions to get started with the project. The project is entirely free of charge.


You need to create an account at

Github


and then start the project with


Results published by the LHCb Collaboration on this analysis.

A clear difference is observed between the decays of the B+ and B- mesons into a three charged kaon final state.

Image Credit:LHCb

FEEDBACK

We hope you enjoy this project. Please provide us your feedback to assist us in improving this project or preparing other projects in the future.

Results published by the LHCb Collaboration on this analysis.

A clear difference is observed between the decays of the B+ and B- mesons into a three charged kaon final state.

Image Credit:LHCb

Page prepared July 2016


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