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 Tools annual

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 monthly

Global: Zendy Plus monthly

Presents the access of premium content as premium feature

Premium Content

Global: Zendy Plus annual

Global: Zendy Free Plan

Background: In our recent experiment, $^9$Be+p at 5.67A MeV, the breakupdecay rates to the 3 configurations, $\alpha$+$\alpha$+n, $^8$Be$^*$+n and$^5$He+$^4$He of $^9$Be, were observed and quantified, in a full kinematicsapproach. Unfolding step by step the accessibility to the above configurations,it will require similar studies at lower and higher energies as well as theinterpretation of the data in a theoretical framework. Purpose: Investigate thebreakup decay rate of $^9$Be+p at 2.72A MeV, where the $\alpha$+$\alpha$+nconfiguration is mainly accessible. Compare and interpret data at 2.72A MeV and5.67A MeV into a 4-body CDCC formalism; Point out and discuss couplings tocontinuum. Methods: Our experimental method includes an exclusive breakupmeasurement in a full kinematic approach of $^9$Be incident on a proton targetat 2.72A MeV, together with elastic scattering and other reaction channelsmeasurements under the same experimental conditions. The interpretation of thedata at 2.72A MeV and 5.67A MeV is considered in a 4-body CDCC approach, usingthe Transformed Harmonic Oscillator method for the 3-body projectile. Results:An elastic scattering angular distribution at 2.72A MeV is measured, whichcompares very well with CDCC calculations, indicating a strong coupling tocontinuum. At the same energy, the measured breakup and total reaction crosssections present good agreement with the calculated values. Further on, theelastic scattering and breakup cross section data at 5.67A MeV are found invery good agreement with the CDCC calculations. The present results supportfurther our 3-body model for the structure of $^9$Be, validating relevantradiative reaction rates obtained previously.

A global study of $^9$Be + p at 2.72 A MeV