Structure of $^{12}$Be studied via the $^{11}$Be(d,p) reaction

Understanding the evolution of the unusual characteristics of unstable nuclei is of great interest in recent times. The breakdown of the N=8 shell closure in $^{12}$Be with its neighbouring isotope $^{11}$Be being a one-neutron halo makes it one of the important sites for investigating the role of binding energy and pairing in the distribution of intruder $s$-wave strength. We will report the first measurement of the $^{11}$Be(d,p) reaction performed at ISACII, TRIUMF that provides a highly selective way to understand the s-wave occupancies in the ground and excited states of $^{12}$Be. Interesting new observations will be presented.