TY  - JOUR
A1  - Panin, Valerii
A1  - Taylor, Jonathan Thomas
A1  - Paschalis, Stefanos
A1  - Wamers, Felix
A1  - Aksyutina, Yuliya
A1  - Alvarez-Pol, Héctor
A1  - Aumann, Thomas
A1  - Bertulani, Carlos A.
A1  - Boretzky, Konstanze
A1  - Caesar, Christoph
A1  - Chartier, Marielle
A1  - Čulkov, L. 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  - Langer, Christoph
A1  - Le Bleis, Tudi
A1  - Lemmon, Roy Crawford
A1  - Nilsson, Thomas
A1  - Petri, Marina
A1  - Plag, Ralf
A1  - Reifarth, René
A1  - Rossi, Dominic M.
A1  - Scheit, Heiko
A1  - Simon, Haik
A1  - Weick, Helmut
A1  - Wimmer, Christine
T1  - Exclusive measurements of quasi-free proton scattering reactions in inverse and complete kinematics
T2  - Physics letters. B
N2  - Quasi-free scattering reactions of the type (p, 2p)were measured for the first time exclusively in com-plete and inverse kinematics, using a 12C beam at an energy of ∼400MeV/u as a benchmark. This new technique has been developed to study the single-particle structure of exotic nuclei in experiments with radioactive-ion beams. The outgoing pair of protons and the fragments were measured simultaneously, enabling an unambiguous identification of the reaction channels and a redundant measurement of the kinematic observables. Both valence and deeply-bound nucleon orbits are probed, including those leading to unbound states of the daughter nucleus. Exclusive (p, 2p)cross sections of 15.8(18)mb, 1.9(2)mb and 1.5(2)mb to the low-lying 0p-hole states overlapping with the ground state (3/2−) and with the bound excited states of 11B at 2.125MeV (1/2−) and 5.02MeV (3/2−), respectively, were determined via γ-ray spectroscopy. Particle-unstable deep-hole states, corresponding to proton removal from the 0s-orbital, were studied via the invariant-mass technique. Cross sections and momentum distributions were ex-tracted and compared to theoretical calculations employing the eikonal formalism. The obtained results are in a good agreement with this theory and with direct-kinematics experiments. The dependence of the proton–proton scattering kinematics on the internal momentum of the struck proton and on its sep-aration energy was investigated for the first time in inverse kinematics employing a large-acceptance measurement.
KW  - Quasi-free scattering
KW  - Inverse kinematics
KW  - Single-particle states
KW  - Spectroscopic factors
Y1  - 2015
UR  - http://publikationen.ub.uni-frankfurt.de/frontdoor/index/index/docId/62868
UR  - https://nbn-resolving.org/urn:nbn:de:hebis:30:3-628681
SN  - 1873-2445
N1  - Funded by SCOAP3.
N1  - The authors acknowledge support from HIC for FAIR, the GSI-TU Darmstadt cooperation agreement, the BMBF under Contract No. 05P12RDFN8, the Helmholtz Alliance EMMI, the Swedish Re-search Council, the U.S. NS Grant No. 1415656, the DOE grant No. DE-FG02-08ER41533 and the Spanish research agency CICYT under Project No. FPA2009-07387.
VL  - 753
SP  - 204
EP  - 210
PB  - North-Holland Publ.
CY  - Amsterdam
ER  -