Interaction of neutralino dark matter with cosmic rays and PAMELA/ATIC data

TL;DR

This paper proposes that the observed positron peak in cosmic rays can be explained by interactions between cosmic rays and neutralino dark matter, involving chargino production and decay.

Contribution

It introduces a novel explanation for the positron excess via neutralino dark matter interactions with cosmic rays, linking particle physics with astrophysical observations.

Findings

Positron peak can result from cosmic ray interactions with neutralino dark matter.

Chargino production and leptonic decay are key processes in this explanation.

Provides a particle physics mechanism consistent with PAMELA/ATIC data.

Abstract

The data recently obtained by PAMELA and ATIC show the presence of the peak in the cosmic positron spectrum at energies above 100 GeV. In this paper it has been shown that the peak can arise due to processes of the interaction of cosmic rays with neutralino dark matter, which are accompanied by chargino production and its leptonic decay.