Investigations of charge-changing processes for light proton-rich nuclei on carbon and solid-hydrogen targets
2017
Abstract We investigated charge-changing processes (total charge-changing cross sections and partial charge-changing cross sections) for light proton-rich nuclei ( 34–36 Ar, 33 Cl, 25–28 Si) at around 300 A MeV on carbon and solid-hydrogen targets. We estimated the nuclear proton point radii of 33 Cl and 25,26,27 Si from the observed total charge-changing cross sections by using Glauber-model calculations with a phenomenological correction factor. Furthermore, we estimated the proton skin thickness for 33 Cl coupled with its previously observed matter radius. From investigations of the partial charge-changing cross sections, clear zigzag pattern was observed for all isotopes. The present studies suggest that the pattern may be common in the proton-rich side, and depends on the odd–even nature of the fragment charge.
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