- #1
arroy_0205
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What is meant by "a certain theory has a scale"?
In the context of high energy physics (and in other branches too) I sometimes hear that a certain theory has "an intrinsic scale in it (the theory)". What is implied by that? How do I find out if a given theory has a scale in it? Can there be more than one scale in the same theory?
(From observation it seems to me that after solving a differential equation (describing some physical process) if the solution is exponential, then the constant part (not the numerical factors) in the exponential is the scale associated with it. Probably the same applies for other power laws also. Am I correct?)
In the context of high energy physics (and in other branches too) I sometimes hear that a certain theory has "an intrinsic scale in it (the theory)". What is implied by that? How do I find out if a given theory has a scale in it? Can there be more than one scale in the same theory?
(From observation it seems to me that after solving a differential equation (describing some physical process) if the solution is exponential, then the constant part (not the numerical factors) in the exponential is the scale associated with it. Probably the same applies for other power laws also. Am I correct?)