Differential Study of Projectile Coherence Effects on Double Capture Processes in p + Ar Collisions

Voss, Trevor; Lamichhane, Basu; Dhital, Madhav; Lomsadze, R. A.; Schulz, Michael

doi:10.3390/atoms8020010

Cited by 2 publications

(1 citation statement)

References 41 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…These experiments demonstrated that projectile coherence cannot be ignored in heavy-ion collisions. Since that time, numerous theoretical and experimental studies have demonstrated the effects of coherence length on collision cross-sections, as well as the ability to control the projectile coherence length [1][2][3][4][5][6][7]10,[32][33][34][35][36][37][38][39]. A projectile's transverse coherence length is proportional to its deBroglie wavelength, which is inversely proportional to projectile momentum [40,41].…”

Section: Introductionmentioning

confidence: 99%

Projectile Coherence Effects in Twisted Electron Ionization of Helium

Harris

2023

Atoms

View full text Add to dashboard Cite

Over the last decade, it has become clear that for heavy ion projectiles, the projectile’s transverse coherence length must be considered in theoretical models. While traditional scattering theory often assumes that the projectile has an infinite coherence length, many studies have demonstrated that the effect of projectile coherence cannot be ignored, even when the projectile-target interaction is within the perturbative regime. This has led to a surge in studies that examine the effects of the projectile’s coherence length. Heavy-ion collisions are particularly well-suited to this because the projectile’s momentum can be large, leading to a small deBroglie wavelength. In contrast, electron projectiles that have larger deBroglie wavelengths and coherence effects can usually be safely ignored. However, the recent demonstration of sculpted electron wave packets opens the door to studying projectile coherence effects in electron-impact collisions. We report here theoretical triple differential cross-sections (TDCSs) for the electron-impact ionization of helium using Bessel and Laguerre-Gauss projectiles. We show that the projectile’s transverse coherence length affects the shape and magnitude of the TDCSs and that the atomic target’s position within the projectile beam plays a significant role in the probability of ionization. We also demonstrate that projectiles with large coherence lengths result in cross-sections that more closely resemble their fully coherent counterparts.

show abstract