论文标题
扭曲电子束对氢分子的撞击单电离
Electron impact single ionization of hydrogen molecule by twisted electron beam
论文作者
论文摘要
在此通信中，我们介绍了平面波和扭曲电子束撞击的分子氢（$ h_2 $）对分子氢（$ h_2 $）的五倍差分横截面（5DC）和三重差分横截面（TDC）的结果。形式主义是在第一个诞生的近似中开发的，使用平面波和入射电子束的扭曲波。我们描述了散射电子的平面波，heitler-london型波函数和库仑波，$ H_2 $分子状态和弹出电子。我们将5DCS和TDC的角曲线与扭曲电子束的轨道角动量（OAM）数的不同值与平面波梁的角度进行了比较。我们还提出了用于不同分子取向的5DC，并研究{\ it m}对5DC的影响。我们进一步研究了扭曲的电子束对（E，2E）过程对$ H_2 $分子的影响，从散射波的“年轻型”干扰的角度，从$ H_2 $分子的两个原子中心散发出来。我们还研究了宏观$ H_2 $目标的TDC，以探索扭曲电子束在TDC上的开头（$θ_p$）的效果。我们的结果清楚地表明了扭曲电子的OAM数（M）和开头角（$θ_P$）对分子氢的5DC和TDC的影响。
In this communication, we present the results of the Five-fold Differential Cross Section (5DCS) and Triple Differential Cross Section (TDCS) for the (e,2e) process on molecular hydrogen ($H_2$) by the plane wave and the twisted electron beam impact. The formalism is developed within the first Born approximation using the plane wave and the twisted wave for the incident electron beam. We describe the plane wave, Heitler-London type wave function and Coulomb wave for the scattered electron, $H_2$ molecular state, and the ejected electron respectively. We compare the angular profiles of the 5DCS and TDCS for the different values of Orbital Angular Momentum (OAM) number {\it m} of the twisted electron beam with that of the plane wave beam. We also present the 5DCS for different molecular orientations and study the effect of {\it m} on the 5DCS. We further investigate the influence of the twisted electron beam on the (e,2e) process on the $H_2$ molecule from the perspective of the "Young-type" interference of the scattered waves, emanating from the two atomic centers of the $H_2$ molecule. We also study the TDCS for macroscopic $H_2$ target to explore the effect of opening angle ($θ_p$) of the twisted electron beam on the TDCS. Our results clearly show the effect of the twisted electron's OAM number (m) and the opening angle ($θ_p$) on the 5DCS and TDCS of the molecular hydrogen.
