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Search: ((LAR1:cth) pers:(Nilsson Thomas 1965) pers:(Kratz J. V.)) srt2:(2020-2024) > (2023)

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  • Wamers, F., et al. (author)
  • Diverse mechanisms in proton knockout reactions from the Borromean nucleus Ne-17
  • 2023
  • In: European Physical Journal A. - : Springer. - 1434-6001 .- 1434-601X. ; 59
  • Journal article (peer-reviewed)abstract
    • Nucleon knockout experiments using beryllium or carbon targets reveal a strong dependence of the quenching factors, i.e., the ratio (Rs) of theoretical to the experimental spectroscopic factors (C2S), on the proton-neutron asymmetry in the nucleus under study. However, this dependence is greatly reduced when a hydrogen target is used. To understand this phenomenon, exclusive H-1(Ne-17, 2p F-16) and inclusive C-12(Ne-17, 2p 1(6)F)X, 1(2)C(Ne-17, F-16)X as well as 1H(Ne-17,(16) F)X(X-denotes undetected reaction products) reactions with F-16 in the ground and excited states were anal- ysed. The longitudinal momentum distribution of F-16 and the correlations between the detached protons were studied. In the case of the carbon target, there is a significant deviation from the predictions of the eikonal model. The eikonal approximation was used to extract spectroscopic factor values (CS)-S-2. The experimental (CS)-S-2 value obtained with C target is markedly lower than that for H target. This is interpreted as rescattering due to simultaneous nucleon knockout from both reaction partners, Ne-17 and C-12.
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