Электронный каталог

Статья

Kanaya, S.
A Joint Experimental and Theoretical Study on Inelastic Backscattering of High-Energy Electrons from He / S.Kanaya, O.Chuluunbaatar, Yu.V.Popov. – Text : electronic // Journal of Physics B-Atomic Molecular and Optical Physics. – 2026. – Vol. 59, No. 9. – P. 095204. – URL: https://doi.org/10.1088/1361-6455/ae5ffc.

A joint experimental and theoretical study is reported for inelastic backscattering of high-energy electrons from He. Electron energy loss spectra of He are measured, as a function of the azimuthal angle, at a scattering angle of 135° and at an incident electron energy of 2 keV. It is shown that azimuthal angle dependencies observed for peak positions of the 1*1S–2*1S and 1*1S–2*1P inelastic bands as well as the 1*1S–1*1S elastic band certainly follow the law of conservation of energy regarding binary collision of electron projectile and scattering helium nucleus. Furthermore, the ratios of the two inelastic scattering cross sections to the elastic scattering are observed to be 1.82(12) × 10*–*3 and 1.55(11) × 10*–*3, respectively. It is also shown that the experimental cross section ratios are well reproduced by both second-order Born and convergent close-coupling calculations, while first-order Born calculations predict several orders of magnitude smaller values. In addition, an easy-to-understand scenario of the inelastic backscattering of high-energy electrons is discussed.



ОИЯИ = ОИЯИ (JINR)2026
Спец.(статьи,препринты) = С 323.5а - Жесткие инклюзивные процессы. Глубоко-неупругое рассеяние. Рождение массивных лептонных пар. Рождение адронов с большим поперечным импульсом