title: Absolute Differential Positronium-Formation Cross Sections.
abstract: The first absolute experimental determinations of the differential cross sections for the formation of ground-state positronium are presented for He, Ar, H2, and CO2 near 0°. Results are compared with available theories. The ratio of the differential and integrated cross sections for the targets exposes the higher propensity for forward emission of positronium formed from He and H2.
authors.affiliation: UCL Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors.forename: M
authors.initials: M
authors.lastname: Shipman
authors.affiliation: UCL Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors.forename: S
authors.initials: S
authors.lastname: Armitage
authors.affiliation: UCL Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors.forename: J
authors.initials: J
authors.lastname: Beale
authors.affiliation: UCL Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors.forename: S J
authors.initials: SJ
authors.lastname: Brawley
authors.affiliation: UCL Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors.forename: S E
authors.initials: SE
authors.lastname: Fayer
authors.affiliation: UCL Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors.forename: A J
authors.initials: AJ
authors.lastname: Garner
authors.affiliation: UCL Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors.forename: D E
authors.initials: DE
authors.lastname: Leslie
authors.affiliation: UCL Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors.forename: P
authors.initials: P
authors.lastname: Van Reeth
authors.affiliation: UCL Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT, United Kingdom.
authors.forename: G
authors.initials: G
authors.lastname: Laricchia