Speaker
Dr
Michael Tarbutt
(Imperial College London)
Description
Certain polar molecules can be used to measure the electron's electric dipole moment (edm) to high precision. In our electron edm measurement at Imperial College London, we currently use a beam of YbF molecules derived from a supersonic source. We are developing a new source of cold YbF molecules based on cryogenic buffer gas cooling. The molecules are created by laser ablation inside a cryogenically-cooled cell of helium gas. They are cooled to the helium temperature and then leave the cell through a hole to form an intense, slow-moving, cold beam. We present our measurements of the intensity, speed and temperature of this new YbF beam, and discuss how we will use it to the benefit of a new edm measurement.
Primary author
Dr
Michael Tarbutt
(Imperial College London)
Co-authors
Dr
Ben Sauer
(Imperial College London)
Dr
Danny Segal
(Imperial College London)
Prof.
Ed Hinds
(Imperial College London)
Dr
Jony Hudson
(Imperial College London)
Mr
Nicholas Bulleid
(Imperial College London)
Dr
Richard Hendricks
(Imperial College London)
Ms
Sarah Skoff
(Imperial College London)
