Antimatter & Dark Matter Antiprotons Phys. Rev. Lett. 102, 051101 (2009). Phys. Rev. Lett. 105, 121101 (2010). Click here to read more Fig.1 – Antiproton to proton ratio – 2009 Fig. 2 – Antiproton to proton ratio – 2010 Fig. 3 – Antiproton flux – 2010 Positrons Nature 458, 607-609 (2009) Physics Reports, 544, 4, 323-370 (2014). Phys. Rev. Lett. 111, 081102 (2013). Click here to read more Fig. 1 – Positron fraction – 2009 Fig. 2 – Positron fraction – 2014 Fig. 3 – Positron flux – 2013