First study of the $^8$Li(t,p)$^{10}$Li and $^{12}$B(t,p)$^{14}$B reactions
ORAL
Abstract
We report on studies of $^{12}$B(t,p)$^{14}$B and $^8$Li(t,p)$^{10}$Li reactions in inverse kinematics with HELIOS at Argonne National Laboratory. Two-neutron transfer reactions can populate states inaccessible to single-nucleon transfer. States in $^{14}$B and $^{10}$Li with strong sd$^2$ character can provide new information about the about the changing nature of the p-sd splitting in this mass region that is important, for example, in understanding the disappearance of the N=8 shell gap suggested in $^{12}$Be. For the unbound levels, small single-neutron spectroscopic factors for sd$^2$ levels can make these states much narrower than the single-particle states at lower excitation energy. Secondary $^{12}$B and $^8$Li beams produced using the RAISOR separator at the ATLAS facility at Argonne National Laboratory bombarded a $^3$H target consisting of $^3$H adsorbed into a 450 $μ$g/cm$^2$ Ti foil. Protons and recoiling nuclei were detected using silicon-detector arrays in HELIOS. The experimental results will be compared to the predictions of shell-model calculations.
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Presenters
Alan H Wuosmaa
University of Connecticut
Authors
Alan H Wuosmaa
University of Connecticut
Daniel G McNeel
Los Alamos National Laboratory
Jie Chen
Argonne National Laboratory
Roderick M Clark
Lawrence Berkeley National Laboratory
Heather L Crawford
Lawrence Berkeley National Laboratory
Catherine M Deibel
Louisiana State University
Calem Hoffman
Argonne National Laboratory
Robert V Janssens
University of North Carolina at Chapel Hill, University of North Carolina at Chapel Hill, TUNL
