English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Zendy Plus

Presents the zaia usage as premium feature

ZAIA

Presents the pdf analysis as premium feature

PDF Analysis

Insights

Presents the summarisation as premium feature

Summarisation

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the access of premium content as premium feature

Premium Content

Zendy Tools

Zendy Open

The closed analytic form for bound-state transitions due to projectile impact is found in the intermediate representation. The coordinate integral is obtained by evaluating the remaining two integrals in the general multicenter integral derived previously (J. C. Straton, Phys. Rev. A 41, 71 (1990)). Evaluating the remaining time integral depends upon relating a sum of modified Bessel functions of the second kind {ital K}{sub {ital N}+1/2}({ital z}) to a simple polynomial in 1/{ital z}. The results of Van Den Bos and De Heer (Physica 34, 333 (1967)) are shown to be missing a phase factor of ({minus}{ital i}){sup ({ital l}{prime}+{ital l})}.

First-order amplitude for general state-to-state transitions in hydrogen by projectile impact