Статья

Ejected-electron-energy and angular dependence of fully differential ionization cross sections in medium-velocity proton collisions with He and <mml:math xmlns:mml="http://www.w3.org/1998/Math/MathML"><mml:msub><mml:mi mathvariant="normal">H</mml:mi><mml:mn>2</mml:mn></mml:msub></mml:math>

Madhav DhitalDepartment of Physics and LAMOR, Missouri University of Science & Technology, Rolla, Missouri 65409, USAS. BastolaDepartment of Physics and LAMOR, Missouri University of Science & Technology, Rolla, Missouri 65409, USAAaron SilvusDepartment of Physics and LAMOR, Missouri University of Science & Technology, Rolla, Missouri 65409, USAJ. DavisDepartment of Physics and LAMOR, Missouri University of Science & Technology, Rolla, Missouri 65409, USABasu LamichhaneDepartment of Physics and LAMOR, Missouri University of Science & Technology, Rolla, Missouri 65409, USAEsam AliDepartment of Natural Sciences, Northwest Missouri State University, Maryville, Missouri 64468, USAMarcelo F. CiappinaICFO–Institut de Ciencies Fotoniques, The Barcelona Institute of Science and Technology, 08860 Castelldefels, Barcelona, SpainR. LomsadzeDepartment of Exact and Natural Science, Tbilisi State University, Tbilisi 0179, GeorgiaA. HasanDepartment of Physics, UAE University, P.O. Box 15551, Al Ain, Abu Dhabi, United Arab EmiratesD. H. MadisonDepartment of Physics and LAMOR, Missouri University of Science & Technology, Rolla, Missouri 65409, USAMichael SchulzDepartment of Physics and LAMOR, Missouri University of Science & Technology, Rolla, Missouri 65409, USA

2020en

ABI

Аннотация

We have measured fully momentum-analyzed recoiling target ions and scattered projectiles, produced in ionization of He and ${\mathrm{H}}_{2}$ by 75 keV proton impact, in coincidence. The momentum of the ejected electrons was deduced from momentum conservation. From the data we extracted fully differential ionization cross sections as a function of the polar electron emission angle (for fixed electron energies) and as a function of the electron energy (for fixed electron emission angles). Comparison between experiment and various distorted wave calculations confirms that under kinematic conditions where the post-collision interaction plays an important role, the few-body dynamics underlying the ionization process are still poorly understood.

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Идентификаторы

DOI: 10.1103/physreva.102.032818

Цитирования и источники

Цитирований: 3Использованных источников: 0

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