Hydrogen Formation by Proton Impact on Positronium

Journal Article · Tue Apr 01 00:00:00 EST 1997 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.78.2728· OSTI ID:490198

Merrison, J; Bluhme, H; Chevallier, J; Deutch, B; Hvelplund, P; Knudsen, H; Poulsen, M ^[1]; Charlton, M ^[2]

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1. Institute of Physics and Astronomy, University of Aarhus, DK-8000 Aarhus (Denmark)
2. Department of Physics and Astronomy, University College London, Gower Street, London WC1E 6BT (United Kingdom)

Hydrogen formation has been observed following proton impact on positronium. This is the first observation of charge exchange involving a positronium target. The cross section for hydrogen formation has been experimentally determined at proton energies of 11.3, 13.3, and 15.8keV. Values of {sigma}{sub H}=26({plus_minus}9), 7.8({plus_minus}2.3), and 7.6({plus_minus}4.4){times}10{sup -16}cm{sup 2} were obtained, in reasonable agreement with recent calculations. {copyright} {ital 1997} {ital The American Physical Society}

• OSTI ID: 490198
• Journal Information: Physical Review Letters, Vol. 78, Issue 14; Other Information: PBD: Apr 1997
• Country of Publication: United States
• Language: English

Related Subjects

66 PHYSICS
HYDROGEN
PARTICLE PRODUCTION
POSITRONIUM
PROTON REACTIONS
CHARGE EXCHANGE
KEV RANGE 10-100
KINETIC ENERGY