Speaker
Description
In this contribution, a brief analysis will be given of an experiment performed at LNS-INFN (July 2018) with a 54 MeV $^{10}$Be beam and a $^9$Be target. The $^{10}$Be+$^{9}$Be reactions are measured to get information on different types of structures of several light nuclei. Special attention is given to a search for cluster states in $^{14}$C and $^{15}$C. The $^{9}$Be isotope has been chosen as the experimental target because of the existence of a cluster structure $^{5}$He+$^{4}$He inside its ground state. Such target structure, alongside the choice of the $^{10}$Be radioactive beam with a suitable energy of 54 MeV, means that the transfer of one of the aforementioned clusters from the target to the beam should result in the creation of the sought $^{14}$C or $^{15}$C isotopes. This should be followed by sequential decay into several channels, some of which are $^{4}$He + $^{10}$Be for $^{14}$C and $^{4}$He + $^{11}$Be or $^{6}$He + $^{9}$Be for $^{15}$C. If we manage to see the experimental signature of these processes, this would be the first indication of the existence of cluster states inside the $^{15}$C nucleus, while a positive result for the $^{14}$C isotope would help to clear up the contradicting findings of other authors.
The experimental setup consists of four highly segmented telescopes covering polar angles from 20$^{\circ}$ to 90$^{\circ}$ which enable particle identification using traditional ${\Delta}$E-E techniques. E part of the telescope is a double-sided silicon strip detector divided into 16 strips at each side, while the ${\Delta}$E part is one-sided with 16 strips.
Preliminary results for the reaction channels of interest will be shown. Plans for the remaining analysis will also be included.
| Topic | Experiment |
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