Orientation and alignment of Mg+ (3p) states excited in 1?60 keV collisions with He and Ar

Autor:	P. Dalby, G. S. Panev, N. Andersen, T Andersen
Rok vydání:	1987
Předmět:	Physics Angular momentum education.field_of_study Range (particle radiation) Argon Scattering Population chemistry.chemical_element Atomic and Molecular Physics and Optics Ion chemistry Excited state Atomic physics education Excitation
Zdroj:	Zeitschrift f�r Physik D Atoms, Molecules and Clusters. 5:331-337
ISSN:	1434-6079 0178-7683
DOI:	10.1007/bf01385463
Popis:	The orientation and alignment of Mg+ (3p) states created in 1–60 keV Mg+ (3s)-He, Ar collisions have been studied by the polarized photon-scattered particle coincidence technique at scattering angles corresponding to impact-parameter ranges of 0.5–1.0 a.u. (He) and 1.2–2.0 a.u. (Ar). Referring to the standard geometry, in the region of maximum excitation probability (∼ 35 keV), a strong propensity for population of the Mg+ (3p −1) state is observed. The propensity breaks down when going towards lower energies, and for collisions with He even a transient reversal of the angular momentum occurs. The alignment angle varies little in the entire range of impact parameters and energies investigated. These observations compare well with recent general predictions of Andersen and Nielsen.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::494c7f1b8a07b971bfc63947cc072adb https://doi.org/10.1007/bf01385463 Zobrazit plný text záznamu Full text from SpringerLink