State of the art in dissociative electron attachment spectroscopy and its prospects
Š. Matejčík*c aInstitute of Molecular and Crystal Physics, Ufa Research Center, Russian Academy of Sciences, prosp. Oktyabrya 151, Ufa, 450075, Russian Federation bMoscow Institute of Physics and Technology (National Research University), Institutskii per. 9, Dolgoprudny, Moscow Region, 141701, Russian Federation cDepartment of Experimental Physics, Comenius University, Mlynská dolina F2, Bratislava, 84248, Slovakia
The latest achievements are presented in experimental and theoretical studies of resonance scattering of low-energy (0—15-eV) electrons from molecular targets in a gas phase resulting in the formation and decay of negative ions. The focus is on dissociative electron attachment spectroscopy for studying the microsecond dynamics of molecules containing an excess electron. Some studies of fundamental processes in isolated negative ions containing up to several electronvolts of excess energy are briefly described, and the possibility of using the results in interdisciplinary fields is discussed. A goal of the paper is to attract attention to the above-mentioned studies, which are rapidly developing abroad but only scarcely presented in the domestic literature.
Keywords: resonance electron scattering, shape resonance, vibrational Feshbach resonance, long-lived molecular negative ions, dissociative attachment, electron autodetachment, electron-induced processes, spectroscopy, mass-spectrometry PACS:34.80.−i, 34.80.Ht, 34.90.+q (all) DOI:10.3367/UFNe.2021.09.039054 URL: https://ufn.ru/en/articles/2022/2/c/ Citation: Pshenichnyuk S A, Asfandiarov N L, Vorob’ev A S, Matejčík Š "State of the art in dissociative electron attachment spectroscopy and its prospects" Phys. Usp.65 163–188 (2022)