TY  - JOUR
AU  - Kuhn, K. et al
AU  - Nacher, E.
PY  - 2021
DA  - 2021//
TI  - Experimental study of the nature of the 1(-) and 2(-) excited excited states in Be-10 using the Be-11(p, d) reaction in inverse kinematics
T2  - Phys. Rev. C
JO  - Physical Review C
SP  - 044601
EP  - 10pp
VL  - 104
IS  - 4
PB  - Amer Physical Soc
AB  - The nature of the 1(-) and 2(-) excited states in Be-10 is studied using the Be-11(p, d) transfer reaction in inverse kinematics at 10A MeV at TRIUMF ISAC-II, in particular to assess whether either of them can be considered as an excited halo state. The angular distributions for both states are extracted using deuteron-gamma( )coincidences and analyzed using a transfer model taking into account one-step and two-step processes. A good fit of the angular distributions is obtained considering only the one-step process, whereby an inner p(3/2) neutron of Be-11 is removed, leaving the halo neutron intact. Higher-order processes however cannot be rejected. The small spectroscopic factors extracted suggest that the structure of both states is not uniquely halo-like, but rather display a more complex configuration mixing cluster and halo structures. Further insights are limited, as this experiment specifically probed the halo-like (but not cluster-like) Be-11 (1/2(+)) circle times (nu p(3/2))(-1) configuration in both states.
SN  - 2469-9985
UR  - https://doi.org/10.1103/PhysRevC.104.044601
DO  - 10.1103/PhysRevC.104.044601
LA  - English
N1  - WOS:000704586000001
ID  - Kuhn+Nacher2021
ER  -