Study of $^{11}$Be on $^9$Be one neutron transfer reactions at TRIUMF ISAC-II

The structure of neutron-rich Beryllium isotopes displays interesting properties arising from the interplay of alpha clustering and valence neutrons, leading in some cases to halo nuclei. In this presentation, preliminary results of the $^{11}$Be on $^{9}$Be reaction at 55 MeV and 30.14 MeV leading to two interesting exit channels will be shown, the first one enabling the study of $^{12}$Be and the second the study of $^{10}$Be. This reaction has advantages over the traditional (d,p) or (d,t) methods, since the reactants are equal in mass they both scatter in a detectable angular range. Additionally, TIGRESS allows precise $\gamma$-tagging for the excited states. Some challenges in analysis include the $^{10}$Be degeneracy, a large $n$ breakup signature, and multiple particle excitation. The data and ongoing analysis will be presented. This work is partially supported by the US Department of Energy through Grant/Contract No. DE-FG03- 93ER40789 (Colorado School of Mines).