An analysis of the 18g,m F (d,p)19F reactions in the rotational model and the Kerman Problem in the continuum*

Abstract:  In the first part of this seminar we will discuss the results of a recent HELIOS [1] measurement of the (d,p) reaction on 18F, from both the ground (1+ ) and isomeric (5+) states, to the members of the 19F ground-state band [2] in the rotational model. We consider the structure of 18,19F in terms of Nilsson single-particle orbits originating from the sd spherical levels coupled to a deformed core, and calculate the (d,p) spectroscopic strengths to 19F from both the ground and isomeric states following the framework reviewed in [3]. Our results show good agreement with the experiment and the shell model. In the second part, we will revisit Kermans Coriolis coupling paper [4] when one of the Nilsson states is a resonance in the continuum. Some preliminary results will be discussed. [1] A. Wuosmaa, et al. Nucl. Instrum. Methods, A580, 1290 (2007). [2] D. Santiago Gonzalez, et al. Phys. Rev. Lett. 120, 122503 (2018). [3] B. Elbek and P. O. Tjom, in Advances in Nuclear Physics, M. Baranger and E. Vogt eds. (Springer, Boston, MA, 1969). [4] A. Kerman, Mat. Fys. Medd. Dan. Vid. Selsk., no. 15 (1956). *This material is based upon work supported by the U.S. DOE, Office of Science, Office of Nuclear Physics, under Contract No. DEAC0205CH11231.