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

Reliable data from the very recent high-precision measurements on theantiproton fluxes and the antiproton-to-proton ratios by the PAMELACollaboration at relatively much higher energies are now available. The resultswith regard to antiproton production phenomena spring no special surprises;rather they are sharply in contrast with and contradiction to the case ofpositron production at the same energy-range. However, the totality of data onantiproton production from the past experiments to the very recent PAMELAoutburst seem to be a very challenging exercise for interpretation in terms ofthe secondary production mechanisms alone, the galactic propagation model etcagainst the background of the `dark-matter'-related controversy. In the presentwork we assume the validity of the simple leaky box model, choose a simpleparticle production model and attempt at providing a comprehensiveinterpretation of the totality of data on both antiproton flux measurements andthe $\overline{P}/P$ ratio-values for the various experiments ranging fromBESS, CAPRICE to the latest PAMELA experiment. With the assumption of nocontribution from the exotic sources to the antiproton production process, ourmodel and the method describe the totality of the measured data with a fairdegree of success.

Understanding the New High Energy Data-sets Measured by BESS, CAPRICE and PAMELA on Antiproton Flux and $\bar{P}/P$ Ratios