Current Schedule

Speaker = Dr. Calem Hoffman of Argonne National Lab.

Host = Sivi Uthayakumaar uthayaku@frib.msu.edu

When = 2025-01-22 Wednesday 15:30 (note the new time!)

Where = FRIB 1200 (note the special location)

Please feel free to sign up below, but note that some slots may need to be re-assigned to accommodate those with a specific need to meet the speaker. If this happens, the Admin or Speaker Host will reach out to you via email.

Title = The Influence of Near-Threshold States on Nuclear Observables

Abstract

One method of pursuit in our search for a more complete description of the spectroscopic properties of nuclei is through the isolation of specific or well-developed mechanisms. In the present work the characteristics of a weakly-bound nuclear single-particle orbital wave function, defined by its approach to the confining threshold, have been shown to be rooted within various nuclear phenomena. Most notably, the role of this geometric or so-called weak-binding behavior has been found to impact our descriptions of evolving single-particle orbitals, the presence or impact of 'bubble' nuclei, the locations of the particle driplines, and the origins of nuclear halo states. Future directions building upon and complementing this new insight will also be discussed.

Relevant background:

• Nuclear Structure of Light Nuclei Near Threshold
• Neutron 𝑠 states in loosely bound nuclei
• Effect of Weak Binding on the Apparent Spin-Orbit Splitting in Nuclei