论文标题
成像低能量无碰撞中共振制度的发作
Imaging the onset of the resonance regime in low-energy NO-He collisions
论文作者
论文摘要
在低能量下，分子相互作用的量子波样性质会导致独特的散射行为，范围从零开尔文附近的通用wigner定律到在较高能量处的散射共振。事实证明，实验探测这些现象背后的单个波是有挑战性的。我们报告了状态到国家积分和差分横截面的测量值，以弹性无碰撞，在0.2-8.5 cm $^{ - 1} $范围内，带有0.02 cm $ $^{ - 1} $分辨率。我们通过探测仅由s和p波的最低共振来研究共振状态的发作。高度结构化的差分横截面直接反映了随着能量的增加而增加的贡献波数。需要在CCSDT（Q）水平上计算出的新的无潜力来重现我们的测量。
At low energies, the quantum wave-like nature of molecular interactions result in unique scattering behavior, ranging from the universal Wigner laws near zero Kelvin to the occurrence of scattering resonances at higher energies. It has proven challenging to experimentally probe the individual waves underlying these phenomena. We report measurements of state-to-state integral and differential cross sections for inelastic NO-He collisions in the 0.2 - 8.5 cm$^{-1}$ range with 0.02 cm$^{-1}$ resolution. We study the onset of the resonance regime by probing the lowest-lying resonance dominated by s and p waves only. The highly structured differential cross sections directly reflect the increasing number of contributing waves as the energy is increased. A new NO-He potential calculated at the CCSDT(Q) level was required to reproduce our measurements.
