PHYS 1313                       Particle Physics Identification II

Name__________________________ ______ 

Go to http://www.physics.smu.edu/~sdalley/particlelab/home.html and follow the instructions. If you have not done so already, read the introductory material and do the tutorial Parts 1–3. Then do the exercises in Part 4, writing your identification and brief relevant reasons for your identification in the spaces below. Most of the credit will be given for correct reasons. Use scientific language - say things like “charged-particle track of high momentum”, not “black line near the center”.

Example Identification - Event 30:     W⁺ W^- → τ ν q q

Reasons: Nothing detected in μ chambers. 2 jets of hadrons (from q q ). One charged particle track in inner tracking chamber (black line)  has momentum > energy deposited in electromagnetic calorimeter and energy deposited in hadronic calorimeter, so single hadron (from τ decay) rather than e.  ν always unseen .

Event 31:

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Event 32:

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Event 33:

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Event 34:

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Event 35:

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Event 36:

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Event 37:

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Event 38:

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Event 39:

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Event 40:

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