Studying $^{10}$Be and $^{11}$Be Halo States through the (p,d) Single-Neutron Transfer Reaction*

One-neutron transfer reactions are being used to study single-particle neutron states in nuclei. For one-neutron halo nuclei, such as $^{11}$Be, the (p,d) reaction enables the removal of the halo neutron or of one of the core neutrons. This way, it is possible to simultaneously study the halo wavefunction of the $^{11}$Be ground-state but also a possible excited halo state in $^{10}$Be. The $^{11}$Be(p, d)$^{10}$Be transfer reaction at 10 MeV/nucleon is being investigated at the TRIUMF-ISAC II facility with the Printed Circuit Board Based Charged Particle ((PCB)$^2$) array inside the TRIUMF ISAC Gamma-Ray Escape-Suppressed Spectrometer (TIGRESS). The ground state and first excited state of $^{10}$Be can be directly identified using deuteron identification and kinematics from the charged particle array, while the four excited states in$^{10}$Be around 6 MeV, including the suspected halo state ( 2$^-$ state), are identified using coincident gamma rays from TIGRESS with the identified deuterons. Angular distributions for the $^{10}$Be populated states will be shown along with their FRESCO fits.