Speaker
Rebecca Daly
(University College London)
Description
In this talk I will discuss measurements of the $2\,^3$S$_1 \rightarrow 2\,^1$P$_1$ ($\nu_F$) transition in positronium (Ps). Although this transition is strictly forbidden by charge conjugation symmetry (C), it becomes observable in the presence of a magnetic field. Ps atoms were produced using a pulsed positron beam and optically excited to the radiatively metastable $2\,^3$S$_1$ state. These atoms then traversed a rectangular waveguide where microwaves were propagated to drive the $\nu_F$ transition. Line shapes of the transition were measured for a range of applied magnetic fields and the transition frequencies and Rabi frequencies were extracted.
Author
Rebecca Daly
(University College London)
Co-authors
Prof.
David Cassidy
(University College London)
Dr
Donovan Newson
(University College London)
Prof.
Jesus Pérez-Ríos
(Stony Brook University)
Mr
Krzysztof Habdas
(University College London)
Dr
Ross Sheldon
(SMI)
Prof.
Stephen Hogan
(University College London)
