Let's consider the tunneling of an electron outside of a potential well. The formula for the transmission coefficient is T ≈ e^(-2CL). Here, L is the width of the barrier and C is a term that includes the particle energy and barrier height. If the tunneling coefficient is found to be T = 0.050 for a given value of L, for what new value of L' is the tunneling coefficient T' = 0.025? (All other parameters remain unchanged.) Express L' in terms of the original L.