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 Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

New experimental data on the pd -> 3He pi+ pi- reaction obtained with theCOSY-MOMO detector below the three-pion threshold are presented. The reactionwas also studied in inverse kinematics with a deuteron beam and the highercounting rates achieved were especially important at low excess energies. Thecomparison of these data with inclusive pd -> 3He+X rates allowed estimatesalso to be made of pi0 pi0 production. The results confirm our earlier findingsthat close to threshold there is no enhancement at low excitation energies inthe pi+ pi- system, where the data seem largely suppressed compared to phasespace. Possible explanations for this behavior, such as strong p- waves in thepi+pi- -system or the influence of two-step processes, are explored.

Study of the pd(dp) -> 3He pi pi reactions close to threshold