High School Teachers
at CERN
http://www.cern.ch/
TEACHING MATERIALS
LINKS&BOOKS
VISITING CERN
HST
Physics with Bubble Chambers
Introduction
How to read bubble chamber pictures
How to see the invisible
Relativity in bubble chamber pictures
General questions about bubble chamber pictures
Calculation of momentum (PowerPoint presentation)
Movement of particles (PowerPoint presentation)
Special pictures and their interpretation
Educational
Photons, electrons and positrons
Accelerated charges radiate
Two special positrons: weigh a positron; positron annihilation in flight
(For details
click here
)
Magnification of weigh a positron section
(For details
click here
)
Overall view of the event containing the above
Hadronic interactions
Study of collisions of strongly interacting particles
Simple example of interaction and decay: K- p --> K0 p pi-
Exercise: Interaction and decay: K- p --> K0 p pi-
Interpretation: Interaction and decay: K- p --> K0 p pi-
Animation
Beautiful example of K+ decaying to 3 charged pions; then pi's decay; then mu's decay
Pretty example of simple hadronic interactions cradled is cosmic rays
10 GeV/c K+ p interaction with beautiful pi mu e decay and stopping proton.
Close up of pi mu e.
Neutrino interactions
Example of xi minus production in nu p interaction
Historical
Omega minus events
Discovery of omega minus
Clear example of omega minus production in 10 GeV/c K- p interactions at CERN
Omega- production (Birmingham event)
Charge exchange with Dalitz pair
Discovery of anti omega minus.
(For original article
click here
)
Close up of discovery of anti omega minus.
Details of primary interaction of anti omega minus production.
© CERN and High School Teachers Programme at CERN
Last modified: 30 July 2001