A source of magnetic-quantum-state-selected metastable helium for Penning reaction studies

Penning collisions of laser-cooled metastable helium atoms

Control of chemi-ionization reactions between metastable helium and lithium by quantum state selection

Penning ionization of alkali metal atoms by metastable helium

Generation of polarized electrons via penning collisions of impurity atoms with optically oriented metastable helium

Chemiionization reactions involving metastable helium atoms

Precise Determination of the Magnetic Moment of Helium in its TRIPLET-2S(1) Metastable State.