Lund University                                                                                                                      Department of Physics
Division of Experimental High Energy Physics
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The Muon Lab
People Involved
Staff
Ph.D. Students
Floderus, Anders
General Information
The purpose of the muon lab is to measure the muon lifetime. The lab is based on a scintillator detector which detects cosmic-ray muons.

This lab is part of the course FYS023, which is given twice a year for the 3rd year students. The purpose of the lab is to give the students an introduction to the analysis techniques of elementary particle physics experiments. The lab gives an (miniature) overview of the different fields of work at a high energy physics experiment. It addresses, how the theory can be studied by the experiment due to its phenomenological impact, the experimental setup and how it is readout and finally the data analysis. In the analysis part the measurement is compared to the theoretical expectation and statistical and systematic errors are discussed.

Present Lab-Assistants:
Floderus, Anders (Room C368)

The documentation:
Lab Manual
Question Sheet
Time Plan and Deadlines
Lab introduction:
presentation [odp][pdf]

A paper will be put on the information board to choose your lab date. You can choose your lab date on the paper on the information board (2 persons per group).

Entrance to the lab through room L217

Lab period: 2013-04-29 -> 2013-05-17 (09.15-12.30)

Data analysis: Monday May 20:th and Wednesday May 22:nd in the computer room. We start at 13:15.

Data Files:

Here, you can find your data a few days after doing the lab.

2013-04-29, Door // 2013-04-29, Window
2013-05-02, Door // 2013-05-02, Window
2013-05-03, Door // 2013-05-03, Window
2013-05-06, Door // 2013-05-06, Window
2013-05-07, Window
2013-05-08, Door // 2013-05-08, Window
2013-05-13, Window
2013-05-14, Door // 2013-05-14, Window
2013-05-15, Window
2013-05-16, Door // 2013-05-16, Window

backup data
If something went wrong with your data taking, you can use the backup data. The calibration values are 27, 51, 126, 245, 369, and 491 for times 1, 2, 5, 10, 15 and 20 microseconds.
Lab report: Two weeks after the Data analysis.


Data Analysis
Analysis of the data collected during the lab can for example be performed using Matlab. Matlab help functions are good and fairly easy to use. Matlab is installed on all the "kurslab" computers under Windows.

NEW: A short note on data treatment, chi-square tests and some Matlab examples can be found here: Data treatment in the muonlab 		    Some useful Matlab commands:

Chi^2 table Calculator
Lab Report
What you should put in your report:
  • An Introduction with the "theory" (the muon, cosmic rays, life time...)
  • Description of the experiment (principle, components, setup). Don't include the details of the manipulation (you hand in the question sheet separately).
  • Data analysis: method and discussion (error sources, data quality...)


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