Nuclear-Spin Inertia and Pressure Broadening ofP122Hanle-Effect Signals

摘要: Hanle-effect measurements yield values for the collisional depolarization rates of $^{2}P_{\frac{1}{2}}$ excited atomic states that are about three times too small unless one explicitly includes effects nuclear spin. The broadening also becomes a nonlinear function foreign-gas pressure. We present experimental evidence nuclear-spin on pressure-broadened signals ${\mathrm{Rb}}^{85}$ and ${\mathrm{Rb}}^{87}$ in helium.