Antinucleon-nucleon and antinucleon-nucleus interaction. A review of experimental data

Pion, Kaon, and Proton Production in Central Pb-Pb Collisions atsNN=2.76 TeV

“…In order to account for the uncertainties due to poorly known hadronic interactions with the detector material, different transport codes (GEANT3, GEANT4 [29] and FLUKA [30]) were tested. The interaction cross section used in the models for , K, and p were separately validated by comparison with the few existing measurements [31][32][33][34][35]. The main systematic uncertainty on the ITS standalone analysis comes from the tracking, due to the high occupancy and small number of tracking points.…”

Production and detection of cold antihydrogen atoms

“…The detector is designed to provide unambiguous evidence for antihydrogen production by detecting the temporally and spatially coincident annihilations of the antiproton and positron when a neutral antihydrogen atom escapes the electromagnetic trap and strikes the trap electrodes. An antiproton typically annihilates into a few charged or neutral pions 14 . The charged pions are detected by two layers of double-sided, position-sensitive silicon microstrips.…”

Design of a Radial TPC for Antihydrogen Gravity Measurement with ALPHA-g

“…The H annihilation is simulated as the process H + p + e − → nπ ± + mπ 0 + 2γ, where n and m are the "pions multiplicities" as measured in [10].…”