Probing the Single-Particle Character of Rotational States in ^{19}F Using a Short-Lived Isomeric Beam.
/ Authors
D. Santiago-Gonzalez, K. Auranen, M. Avila, A. D. Ayangeakaa, B. Back, S. Bottoni, M. Carpenter, J. Chen, C. Deibel, A. Hood
and 24 more authors
C. Hoffman, R. Janssens, C. L. Jiang, B. Kay, S. Kuvin, A. Lauer, J. Schiffer, J. Sethi, R. Talwar, I. Wiedenhöver, J. Winkelbauer, S. Z. D. O. Physics, Astronomy, Louisiana State University, USA., P. Division, A. N. Laboratory, Department of Applied Physics, U. O. Connecticut, D. Chemistry, Biochemistry, U. Maryland, Florida State University, L. Laboratory
/ Abstract
A beam containing a substantial component of both the J^{π}=5^{+}, T_{1/2}=162 ns isomeric state of ^{18}F and its 1^{+}, 109.77-min ground state is utilized to study members of the ground-state rotational band in ^{19}F through the neutron transfer reaction (d,p) in inverse kinematics. The resulting spectroscopic strengths confirm the single-particle nature of the 13/2^{+} band-terminating state. The agreement between shell-model calculations using an interaction constructed within the sd shell, and our experimental results reinforces the idea of a single-particle-collective duality in the descriptions of the structure of atomic nuclei.
Journal: Physical review letters