Low Energy p-bar+ H Collisions in Hyperspheroidal Coordinates

Journal Article · Wed Oct 26 00:00:00 EDT 2005 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2130190· OSTI ID:20726685

Matveenko, A V ^[1]; Fukuda, Hiroshi ^[2]; Alt, E O ^[3]

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1. Bogoliubov Laboratory, Joint Institute for Nuclear Research, 141980 Dubna, Moscow (Russian Federation)
2. University of Shizuoka, Shizuoka 422-8526 (Japan)
3. Institut fuer Physik, Universitaet Mainz, D-55099, Mainz (Germany)

Recently, Esry and Sadeghpour (2003), and Hesse, Le and Lin (2004), have reported calculations of protonium formation in p-bar+ H collisions at low energies, using hyperspherical coordinates in a hyperradial adiabatic approach. In order to make the problem tractable both groups were forced to introduce an artificial proton mass (m{sub p}{sup '} = 17.824 a.u. and m{sub p}{sup '} = 100 a.u., respectively) which raises doubts as to the physical relevance of their results and conclusions. Here we make use of the hyperspheroidal coordinates in order to attack the same problem in basically the same approach but without need for changing the physical particle masses.

• OSTI ID: 20726685
• Journal Information: AIP Conference Proceedings, Vol. 796, Issue 1; Conference: LEAP '05: 8. international conference on low energy antiproton physics, Bonn (Germany), 16-22 May 2005; Other Information: DOI: 10.1063/1.2130190; (c) 2005 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANTIPROTONS
COORDINATES
HYDROGEN
PROTON-NUCLEON INTERACTIONS
PROTONIUM
REST MASS