Data di Pubblicazione:
2016
Abstract:
The differential cross section was measured for the 12C(e, e
pp)10Beg.s. reaction at energy and
momentum transfers of 163MeV and 198MeV/c, respectively. The measurement was performed at the
Mainz Microtron by using two high-resolution magnetic spectrometers of the A1 Collaboration and a
newly developed silicon detector telescope. The overall resolution of the detector system was sufficient to
distinguish the ground state from the first excited state in 10Be. We chose a super-parallel geometry that
minimizes the effect of two-body currents and emphasizes the effect of nucleon-nucleon correlations. The
obtained differential cross section is compared to the theoretical results of the Pavia reaction code in which
different processes leading to two-nucleon knockout are accounted for microscopically. The comparison
shows a strong sensitivity to nuclear-structure input and the measured cross section is seen to be dominated
by the interplay between long- and short-range nucleon-nucleon correlations. Microscopic calculations based
on the ab initio self-consistent Green’s function method give a reasonable description of the experimental
cross section.
1
pp)10Beg.s. reaction at energy and
momentum transfers of 163MeV and 198MeV/c, respectively. The measurement was performed at the
Mainz Microtron by using two high-resolution magnetic spectrometers of the A1 Collaboration and a
newly developed silicon detector telescope. The overall resolution of the detector system was sufficient to
distinguish the ground state from the first excited state in 10Be. We chose a super-parallel geometry that
minimizes the effect of two-body currents and emphasizes the effect of nucleon-nucleon correlations. The
obtained differential cross section is compared to the theoretical results of the Pavia reaction code in which
different processes leading to two-nucleon knockout are accounted for microscopically. The comparison
shows a strong sensitivity to nuclear-structure input and the measured cross section is seen to be dominated
by the interplay between long- and short-range nucleon-nucleon correlations. Microscopic calculations based
on the ab initio self-consistent Green’s function method give a reasonable description of the experimental
cross section.
1
Tipologia CRIS:
1.1 Articolo in rivista
Keywords:
Nuclear and High Energy Physics
Elenco autori:
Makek, M.; Achenbach, P.; Ayerbe Gayoso, C.; Barbieri, C.; Bernauer, J. C.; Böhm, R.; Bosnar, D; Denig, A.; Distler, M. O.; Friščić, I.; Giusti, Carlotta; Merkel, H.; Müller, U.; Nungesser, L.; Pochodzalla, J.; Sanches Majos, S.; Schlimme, B. S.; Schwamb, M.; Walcher, T. h.
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