An above-barrier narrow resonance in $^{15}$F
Nuclear Experiment
2016-05-25 v1
Abstract
Intense and purified radioactive beam of post-accelerated O was used to study the low-lying states in the unbound F nucleus. Exploiting resonant elastic scattering in inverse kinematics with a thick target, the second excited state, a resonance at E=4.757(6)(10)~MeV with a width of =36(5)(14)~keV was measured for the first time with high precision. The structure of this narrow above-barrier state in a nucleus located two neutrons beyond the proton drip line was investigated using the Gamow Shell Model in the coupled channel representation with a C core and three valence protons. It is found that it is an almost pure wave function of two quasi-bound protons in the shell.
Keywords
Cite
@article{arxiv.1603.00436,
title = {An above-barrier narrow resonance in $^{15}$F},
author = {F. De Grancey and A. Mercenne and F. de Oliveira Santos and T. Davinson and O. Sorlin and J. C. Angélique and M. Assié and E. Berthoumieux and R. Borcea and A. Buta and I. Celikovic and V. Chudoba and J. M. Daugas and G. Dumitru and M. Fadil and S. Grévy and J. Kiener and A. Lefebvre-Schuhl and N. Michel and J. Mrazek and F. Negoita and J. Okolowicz and D. Pantelica and M. G. Pellegriti and L. Perrot and M. Ploszajczak and G. Randisi and I. Ray and O. Roig and F. Rotaru and M. G. Saint Laurent and N. Smirnova and M. Stanoiu and I. Stefan and C. Stodel and K. Subotic and V. Tatischeff and J. C. Thomas and P. Ujic and R. Wolski},
journal= {arXiv preprint arXiv:1603.00436},
year = {2016}
}
Comments
8 pages, 2 figures, 1 table, Submitted to Phys. Lett. B