TY - JOUR A1 - Panin, Valerii A1 - Holl, Matthias A1 - Taylor, Jonathan Thomas A1 - Aksyutina, Yuliya A1 - Alvarez-Pol, Héctor A1 - Aumann, Thomas A1 - Bertulani, Carlos A. A1 - Boretzky, Konstanze A1 - Caesar, Christoph A1 - Chartier, Marielle A1 - Chulkov, Leonid V. A1 - Cortina Gil, Dolores A1 - Enders, Joachim A1 - Ershova, Olga A1 - Geissel, Hans A1 - Gernhäuser, Roman A1 - Heil, Michael A1 - Johansson, Håkan T. A1 - Jonson, Björn A1 - Kelić-Heil, Aleksandra A1 - Kiselev, Oleg A. A1 - Langer, Christoph A1 - Le Bleis, Tudi A1 - Lemmon, Roy Crawford A1 - Nilsson, Thomas A1 - Paschalis, Stefanos A1 - Petri, Marina A1 - Plag, Ralf A1 - Reifarth, René A1 - Rossi, Dominic M. A1 - Scheit, Heiko A1 - Simon, Haik A1 - Wamers, Felix A1 - Weick, Helmut A1 - Wimmer, Christine T1 - Quasi-free proton knockout from ¹²C on carbon target at 398 MeV/u T2 - Physics letters B N2 - The proton-removal mechanism of the 12CB 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 [formula] and [formula], 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. KW - Direct nuclear reactions KW - One-nucleon removal KW - Quasi-free scattering KW - Cross sections Y1 - 2019 UR - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/62883 UR - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-628834 SN - 0370-2693 SN - 1873-2445 N1 - The authors acknowledge support from HIC for FAIR, the GSI-TU Darmstadt cooperation agreement, the BMBF under Contract No. 05P19RDFN1, the Helmholtz Alliance EMMI, the Swedish Research Council, the U.S. NS Grant No. 1415656, the DOE grant No. DE-FG02-08ER41533 and the Spanish research agency MINECO under Project No. FPA2015-69640-C2-1-P. N1 - Funded by SCOAP 3 VL - 797 IS - art. 134802 SP - 1 EP - 6 PB - North-Holland Publ. CY - Amsterdam ER -