Perspectives for anti deuteron search in cosmic rays with an helium calorimeter

Abstract

Abstract The observation of sub-GeV antideuteron in the cosmic ray flux could be a very strong signature of dark matter annihilation in our galaxy. The goal of the Anti Deuteron Helium Detector (ADHD) project is to study the signatures offered by an high pressure Helium calorimeter for the identification of antideuterons in space. The performance of an high pressure (200 bar) Helium scintillator prototype, capable of fast timing, will be shown.