Single and double $K$-shell vacancy production in slow Xe${}^{\text{54+,53+}}$-Xe collisions

Abstract

We present an experimental and theoretical study of symmetric ${\text{Xe}}^{54+}+\text{Xe}$ collisions at 50, 30, and 15 MeV/u, corresponding to strong perturbations with $v_K/v_{\text{p}}$ = 1.20, 1.55, and 2.20, respectively ($v_K$: classical $K$-shell orbital velocity, $v_{\text{p}}$: projectile velocity), as well as ${\text{Xe}}^{53+}+\text{Xe}$ collisions at 15 MeV/u. For each of these systems, x-ray spectra were measured under a forward angle of $35^{\circ }$ with respect to the projectile beam. Target satellite and hypersatellite radiation, $K{\alpha }_{2,1}^{\mathrm{s}}$ and $K{\alpha }_{2,1}^{\mathrm{hs}}$, respectively, were analyzed and used to derive cross section ratios for double-to-single target $K$-shell vacancy production. We compare our experimental results to relativistic time-dependent two-center calculations.

arXiv comment8 pages, 4 figures

References in corpus (9)

• Relativistic calculations of the charge-transfer probabilities and cross sections for low-energy collisions of H-like ions with bare nuclei
• How to observe the vacuum decay in low-energy heavy-ion collisions
• How to access QED at supercritical Coulomb field
• Electron-positron pair creation in low-energy collisions of heavy bare nuclei
• Relativistic calculations of the K-K charge transfer and K-vacancy production probabilities in low-energy ion-atom collisions
• QED calculation of electron-electron correlation effects in heliumlike ions
• Electron-positron pair production in slow collisions of heavy nuclei beyond the monopole approximation
• Production and decay of K-shell hollow krypton in collisions with 52 - 197 MeV/u bare xenon ions
• Relativistic calculations of the x-ray emission following the Xe-Bi${}^{83+}$ collision

Cited by in corpus (1)

• Finite-Basis-Set Approach to the Two-Center Heteronuclear \\ Dirac Problem