On the Special Significance of the Latest PAMELA Results in Astroparticle Physics

TL;DR

This paper analyzes the 2010 PAMELA antiproton data at high energies, comparing it with models to understand cosmic ray secondary production and implications for astrophysics.

Contribution

It provides a comprehensive description of high-energy antiproton flux and ratios from PAMELA, extending previous models with standard and non-standard assumptions.

Findings

Model successfully captures data trends at high energies

Highlights physical implications for cosmic ray physics

Extends previous analyses with new high-energy data

Abstract

In continuation of their earlier measurements, the PAMELA group reported data on antiproton flux and $\bar{P}/P$ ratios in 2010 at much higher energies. In past we had dealt with these specific aspects of PAMELA data in great detail and each time we captured the contemporary data-trends quite successfully with the help of a multiple production model of secondary antiprotons with some non-standard ilk and with some other absolutely standard assumptions and approximations. In this work we aim at presenting a comprehensive and valid description of all the available data on antiproton flux and the nature of $\bar{P}/P$ ratios at the highest energies reported so far by the PAMELA experiment in 2010. The main physical implication of all this would, in the end, be highlighted.