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What is resonanse?

  1. Oct 17, 2011 #1
    Hi,everyone:

    What is resonanse state particle? what is the difference between it and the real particles?
    Dose it is ture that any system contains two fundermental particals who interact with each other can form a resonanse?

    Weimin
     
  2. jcsd
  3. Oct 18, 2011 #2
    Resonance is a name given to a particle produced by the strong force. They also decay strongly and thus they are very short-lived (the stronger the force, the faster the decay), lifetimes are on the order of 10^-25 seconds. In practice, a resonance is a well-defined particle with a specific mass, spin etc., but they can only be produced in high energy collisions and do not in general exist in nature.
     
  4. Oct 18, 2011 #3
    Thank you for your answer.
     
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