Speaker = Prof. Wilton Catford of University of Surrey (UK)
Host = Sivi Uthayakumaar uthayaku@frib.msu.edu
When = 2024-11-06 Wednesday 16:10
Where = FRIB 1200 (different than normal)
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.
| Start Time | End Time | Name | Building | Room |
|---|---|---|---|---|
| 09:00 | 09:30 | Sivi Uthayakumaar | FRIB | 2049 |
| 09:30 | 10:00 | Ben Arend | FRIB | 4203 |
| 10:00 | 10:30 | Artemis Spyrou | FRIB | 2008 |
| 10:30 | 11:00 | Giordano Cerizza | FRIB | 1103 |
| 11:00 | 11:30 | Filomena Nunes | FRIB | 2107 |
| 11:30 | 12:00 | Chloe Hebborn | FRIB | 2103 |
| 12:00 | 13:00 | Lunch with Graduate Students | FRIB | 2311 |
| 13:00 | 13:30 | Joseph Chung-Jung | FRIB | 2025 |
| 13:30 | 14:00 | Alex Brown | FRIB | 2043 |
| 14:00 | 14:30 | Reaction theory group | FRIB | theory discussion area |
| 14:30 | 15:00 | Alexandra Gade | FRIB | 2303 |
| 15:00 | 15:30 | Jaideep Singh | FRIB | 2016 |
| 15:30 | 16:00 | Speaker Prep time | FRIB | 1200 |
| 16:00 | 17:00 | Seminar | FRIB | 1200 |
Title = Nucleon Transfer and the Two-Faced Nature of 48K
Abstract
Nucleon transfer reactions allow us to populate nuclear states with very specific structure in a very selective fashion. This makes the selected states relatively easy to identify and they are also the states that the shell model should be most successful in describing - so these experiments allow us to test (and hence improve) the shell model and its extrapolations. This remains true, even if the precise value of the “spectroscopic factors” - that we use in describing the structure - are a matter of some debate. The introductory part of the talk will examine the meaning of “spectroscopic factor”, some of the challenges in deducing experimental values and the reasons for choosing a pragmatic way forward. Some new experimental results for 48K will be described, recently obtained in an experiment with a reaccelerated beam of radioactive 47K from SPIRAL1 and a silicon array operated with the AGATA gamma-ray array and the VAMOS magnetic spectrometer. These new results greatly extend the knowledge of excited states in 48K, but also show up some interesting challenges due to the coexistence of two different proton configurations at the same excitation energies. Implications for ever-more-neutron rich nuclei will be discussed and finally a few features of the new FAUST array for transfer studies will be described.
Relevant background: