9/30にNorthwestern大学のGerald Gabrielse教授をお招きしました。Gabrielseさんは我々と電子EDM測定実験ACMEで共同研究をしており、PIをされています。今回の訪問では、GabrielseさんがACMEと並行して進めている電子のg因子、および陽電子のg因子の測定についてセミナーをしていただきました。また実験室見学や研究交流など親交を深めました。
On September 30th, we had the pleasure of hosting Professor Gerald Gabrielse from Northwestern University. He's the PI of the ACME experiment, where we collaborate on measuring the electron EDM. During his visit, he gave a seminar on his parallel work measuring the electron and positron g-factors. We also had a lab tour and some great research discussions—it was a great chance to deepen our collaboration!
Title: One particle measurements of the electron and positron magnetic moments: the most stringent tests of the Standard Model
Abstract: A new measurement underway in completely new apparatus seeks to greatly improve upon the 1 part in 10^{13} measurement of the electron magnetic moment that our research group announced in 2023. The motivation for making the most precise measurement ever made of a property of an elementary particle is to test the most precise prediction of the Standard Model of particle physics. A one-electron, relativistic, quantum cyclotron is realized to enable these measurements. Essential quantum methods include quantum non-demotion detection (QND), quantum jump spectroscopy, cavity-inhibited spontaneous emission, and quantum-limited detectors. The importance of a new measurement of the fine structure constant will be discussed as well.