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Panin, V.; Holl, M.; Taylor, J.T.; Aksyutina, Y.; Alvarez-Pol, H.; Aumann, T.; Bertulani, C.A.; Boretzky, K.; Caesar, C.; Chartier, M.; Chulkov, L.V.; Cortina-Gil, D.; Enders, J.; Ershova, O.; Geissel, H.; Gernhäuser, R.; Heil, M.; Johansson, H.T.; Jonson, B.; Kelić-Heil, A.; Kiselev, O.; Langer, C.; Le Bleis, T.; Lemmon, R.; Nilsson, T.; Paschalis, S.; Petri, M.; Plag, R.; Reifarth, R.; Rossi, D.; Scheit, H.; Simon, H.; Wamers, F.; Weick, H.; Wimmer, C.
Physics letters. B, 10/2019, Letnik: 797, Številka: CJournal Article
The proton-removal mechanism of the 12C→11B reaction induced on a carbon target via elementary nucleon-nucleon scattering is investigated in exclusive triple-coincidence measurements. The observed two-nucleon angular correlations are found to be consistent with quasi-free scattering of a projectile-like proton off a target-like nucleon. Exclusive cross sections for one-step pp and pn interactions are determined as σpp=17.2(12) mb and σpn=18.2(18), respectively. The extracted quasi-free component amounts up to 58(4)% of the total proton-removal cross section. The results are compared to total proton-removal cross sections obtained from the experiment and eikonal reaction theory.
