Width of the resonance peak

  • Thread starter Safinaz
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  • #1
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Hi all,

I'd like to know what if we have a scatteing process A+B > C > E+D,
what is the relation between the width of the resonance peak of the particle C at
plotting the inv. mass of particles E and D and the total width of C .

Regards,
S.
 

Answers and Replies

  • #2
129
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This is the breit wigner. Which is modelled by a Cauchy distribution.
 
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  • #3
Meir Achuz
Science Advisor
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The observed width of any particular mass distribution is always the total width of the resinant state.
 
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  • #4
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How, if the total width of the intermediate particle for example = 2 GeV, the observed width will be 2 cm ..
what if the resinant particle is heavy and has a large total width, like 600 GeV ?
 
  • #5
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Then you see a very wide resonance. And take into account any hanged to the propagator.
 

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