Laser Spectroscopy of the 229Th Nuclear Isomer - Current Status and Future Applications -HYBRID

The year 2024 was a breakthrough year in 229Th-related research, with three experiments reporting success in the laser spectroscopy of the lowest nuclear excited state of 229Th. The highest accuracy was achieved at JILA via direct frequency comb spectroscopy of this, previously elusive, nuclear state. This success is the result of several decades of effort to precisely determine the transition energy and a first step towards nuclear precision spectroscopy and the development of a nuclear frequency standard of extremely high accuracy.
Applications for dark matter detection as well as the search for time variations of fundamental constants appear to be in reach.

In this talk I will provide an overview over the history of 229Th that has culminated in this success. Further, I will discuss the remaining efforts and challenges. Finally, I will introduce the investigations underway within the framework of the BMFTR-funded project “NuQuant”.

https://gsi-fair.zoom.us/j/63856816325
Meeting-ID: 638 5681 6325
Passcode: AP_Seminar
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