A proton beam will be provided by the existing GSI facility and will be further accelerated by FAIR's SIS100 ring accelerator up to 30 GeV. By the beam hitting the antiproton production target, antiprotons with a momentum of around 3 GeV/c will be produced and can be collected and pre-cooled in the Collector Ring (CR). Afterwards the antiprotons will be injected into the High Energy Storage Ring (HESR). This race track shaped storage ring will host the P̄ANDA experiment. The antiprotons can be cooled using stochastic and later also electron cooling and afterwards slowed down or further accelerated to momenta from p = 1.5 GeV/c up to p = 15 GeV/c. There are two operation modes of the HESR. In the high-resolution mode a momentum resolution of Δ Δ p p = 5 ⋅ ⋅ 10 − − 5 and a luminosity of L = 1.6 ⋅ ⋅ 10 31 c m − − 2 s − − 1 can be achieved. In the high luminosity mode the momentum resolution will be Δ Δ p p = 10 − − 4 and the luminosity L = 1.6 ⋅ ⋅ 10 32 c m − − 2 s − − 1 .