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/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

New experimental data for the $^{38}$Ar($\alpha$,n)$^{41}$Ca and$^{38}$Ar($\alpha$,p)$^{41}$K reactions were used to find a best-fit set ofparameters for statistical model calculations. The very good agreement betweenthe experimental data and the best-fit calculation confirms the applicabilityof the statistical model for nuclei in the vicinity of the doubly-magic$^{40}$Ca despite of their relatively low level densities. The present studyinvestigates the sensitivities and finds that the $\alpha$-nucleus and thenucleon-nucleus potentials are the most important ingredients for thecalculation of ($\alpha$,n) and ($\alpha$,p) reactions in the statisticalmodel. Furthermore, the width fluctuation correction plays an essential role inthe peculiar case of $^{38}$Ar. The best-fit parameters from $^{38}$Ar areapplied to the mirror nucleus $^{38}$Ca and the neighboring $^{36}$Ar and$^{40}$Ar nuclei. For $^{38}$Ca this results in an astrophysical reaction rateof the $^{38}$Ca($\alpha$,p)$^{41}$Sc reaction which has a flatter temperaturedependence compared to all previous calculations. For $^{40}$Ar a betterreproduction of $^{40}$Ar($\alpha$,p)$^{43}$K data from literature is obtained.The disagreement between calculation and an early experimental data point forthe $^{36}$Ar($\alpha$,p)$^{39}$K reaction persists.

Cross sections of $\alpha$-induced reactions slightly below doubly-magic $^{40}$Ca from the statistical model