Electron-impact ionization of neon at low projectile energy: an internormalized experiment and theory for a complex target.
Electron-impact ionization of neon at low projectile energy: an internormalized experiment and theory for a complex target.
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DOI：
10.1103/physrevlett.110.153202
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发表时间：
2013-04
影响因子：
8.6
通讯作者：
T. Pflüger;O. Zatsarinny;K. Bartschat;A. Senftleben;X. Ren;J. Ullrich;A. Dorn
中科院分区：
文献类型：
--
作者：
T. Pflüger;O. Zatsarinny;K. Bartschat;A. Senftleben;X. Ren;J. Ullrich;A. Dorn
作为对最先进理论方法的基本测试，我们研究了100 eV射弹能量下氖的单电离（2 p）。实验数据是使用先进的反应显微镜获得的，该显微镜具有高效率和近4π的大立体角接受能力。我们把特别强调的能力，测量internormalized三重微分截面的相空间的很大一部分。的数据进行比较，从二阶混合扭曲波加R-矩阵模型和一个完全非微扰B-样条R-矩阵（BSR）与伪状态的方法的预测。对于这种复杂性和低能区的目标，实验和BSR模型之间的一致性是前所未有的，这代表了复杂目标研究的重要一步。
As a fundamental test for state-of-the-art theoretical approaches, we have studied the single ionization (2p) of neon at a projectile energy of 100 eV. The experimental data were acquired using an advanced reaction microscope that benefits from high efficiency and a large solid-angle acceptance of almost 4π. We put special emphasis on the ability to measure internormalized triple-differential cross sections over a large part of the phase space. The data are compared to predictions from a second-order hybrid distorted-wave plus R-matrix model and a fully nonperturbative B-spline R-matrix (BSR) with pseudostates approach. For a target of this complexity and the low-energy regime, unprecedented agreement between experiment and the BSR model is found. This represents a significant step forward in the investigation of complex targets.