How bosons decay?

  • #1
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Main Question or Discussion Point

Hey!

I'm studying some particle physics. I ran into this example of a gluon decaying into a u - anti-u pair. (According to example 9: http://teachers.web.cern.ch/teachers/archiv/HST2002/feynman/examples.htm) How come this happens via strong force. Why isn't a Z0 boson doing this instead?

Thanks!
 

Answers and Replies

  • #2
7
0
sorry it's a d and anti-d pair!
 
  • #3
ChrisVer
Gold Member
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the Z0 boson could do that, but ... weak force is called 'weak' for a reason.... the Z0 would be way too off-shell.
It's much more likely that a gluon will do the job... and in most of cases, if you can draw a diagram with a gluon, you'll preferably draw it with that... except for if you are interested to less probable stuff...
 
  • #4
7
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Thanks, just the kind of answer i was looking for!
 

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