- #1
eljose79
- 1,518
- 1
givne a theory with a given lagrangian..how do you obtain the dimension of coupling constatn?..in fact how do you know that for electromagnetism is g=1/137 or that for gravitation have units of m**-2?
Can the coupling constant be rescaled to get always a dimensionless one?
Can the coupling constant be rescaled to get always a dimensionless one?