This article is cited in 26 papers

INSTRUMENTS AND METHODS OF INVESTIGATION

State of the art in dissociative electron attachment spectroscopy and its prospects

S. A. Pshenichnyuk^a, N. L. Asfandiarov^a, A. S. Vorob'ev^b, Š. Matejčík<sup>c

a</sup> Institute of Molecule and Crystal Physics, Ufa Federal Research Center, Russian Academy of Sciences
^b Moscow Institute of Physics and Technology (National Research University), Dolgoprudny, Moscow Region
^c Department of Experimental Physics, Comenius University, Bratislava, Slovakia

Abstract: 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

Received: August 21, 2020
Revised: September 3, 2021
Accepted: September 6, 2021

DOI: 10.3367/UFNr.2021.09.039054

 English version: Physics–Uspekhi, 2022, 65:2, 163–188

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