The 12C(e, e′p) and 12C(e, e′pp) reactions in the Δ-resonance region

Abstract

Link to publication Citation for published version (APA):Zondervan, A., de Bever, L. J., Jans, E., Konijn, J., Kruijer, M., Steijger, J. J. M., ... Vanderhaeghen, M. (1995). The 12C(e, ep) and 12C(e, epp) reactions in the -resonance region. Nuclear Physics A, 587(4), 697-720. DOI: 10.1016/0375-9474(95)00044-2 General rightsIt is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulationsIf you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: http://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. The 12C(e, e' p) and 12C(e, e' pp) reactions in the A-resonance region AbstractCoincidence cross sections for the "C(e, e'pp) and "C(e, e'p) reactions have been measured in the A-resonance region. The '*C(e, e'pp) reaction has been measured at three different angular settings of the proton detectors to investigate the angular correlation between the emitted protons. The data, which have a low statistical accuracy, are compared with a calculation based on the direct-knockout mechanism, which includes one-and two-body currents. NN-correlations are accounted for via a correlation function, A-excitation via a two-body current and final-state interactions of the emitted protons via an optical potential. The "C(e, e'p) data, taken at large proton-emission angles, cover the region of high missing-energy values

Dominance ofS01Proton-Pair Emission in theOOnderwater1, Allaart2, Aschenauer3 et al. 1997Phys. Rev. Lett.Self Cite532230View full textAdd to dashboardCite

“…Thus far, no ͑e, e 0 pn͒ and only two ͑e, e 0 pp͒ studies have been published, both using 12 C as a target nucleus [8,9]. Although the statistical accuracy in these experiments was limited, the missing-energy spectrum displayed in Ref.…”

Differential cross section measurement of the 12C(e,e’pp)10Beg.s. reaction

“…Such measurements were performed for the first time at NIKHEF for the reaction 16 O(e,e pp) 14 C [28-30] and gave clear signatures of SRC for the transition to the ground state of 14 C. Similar pilot measurement was later carried out at MAMI for the 16 O(e,e pp) 14 C [31]. Previous (e,e pp) measurements performed on 12 C were not able to distinguish individual states in the residual nucleus [32][33][34].…”

A Model for Two-Proton Emission Induced by Electron Scattering

“…This approximation consists essentially in setting G A = G B = 1/(m ∆ − m n ) in Eq. (19). This is the approximation we have used in our previous works [ 1, 3, 4].…”

“…After testing the feasibility of the experiment [18,19], angular correlations of the cross sections have been measured [20,21]. Other experiments of this kind have been planned.…”