Naslov
Differential cross section measurement of the12C(e, e’pp)10Be g.s. reaction

Autori
Makek, Mihael ; ... ; Bosnar, Damir ; ... ; Friščić, Ivica ; ... ; Walcher, Thomas

Izvornik
European physical journal A : hadrons and nuclei (1434-6001) 52 (2016), 9; 298-1

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Electron scattering, nucleon-nucleon correlations, 12C

Sažetak
The differential cross section was measured for the 12C(e, e’pp)10Be g.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.

Izvorni jezik
Engleski

Znanstvena područja
Fizika

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