Low-energy positron interactions with krypton

Journal Article · Tue Mar 15 04:00:00 EDT 2011 · Physical Review. A

DOI:https://doi.org/10.1103/PHYSREVA.83.032721· OSTI ID:21541299

Makochekanwa, C; Machacek, J R; Jones, A C. L.; Caradonna, P; Slaughter, D S; McEachran, R P; Sullivan, J P; Buckman, S J; Bellm, S; Lohmann, B; Fursa, D V; Bray, I; Mueller, D W; Stauffer, A D; Hoshino, M ^[1]

---

1. ARC Centre for Antimatter-Matter Studies, Research School of Physics and Engineering, Australian National University, Canberra, ACT 0200 (Australia)

Cross sections for positron scattering from krypton have been measured with an energy resolution of {approx}60 meV over the energy range 0.5-60 eV. Absolute values of the grand total ({sigma}{sub GT}), positronium formation ({sigma}{sub Ps}), and grand total minus positronium formation ({sigma}{sub GT}-{sigma}{sub Ps},) cross sections are presented. Theoretical estimations of {sigma}{sub GT} and {sigma}{sub GT}-{sigma}{sub Ps} are also performed for this target using the convergent close-coupling method and the relativistic optical potential approach. We also provide experimental and theoretical results for elastic differential cross sections, for selected energies both below and above the Ps threshold. Where available, the present results are compared to both experimental and theoretical values from the literature.

• OSTI ID: 21541299
• Journal Information: Physical Review. A, Journal Name: Physical Review. A Journal Issue: 3 Vol. 83; ISSN 1050-2947; ISSN PLRAAN
• Country of Publication: United States
• Language: English

Related Subjects

74 ATOMIC AND MOLECULAR PHYSICS
ANTILEPTONS
ANTIMATTER
ANTIPARTICLES
ATOM COLLISIONS
COLLISIONS
CROSS SECTIONS
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ELEMENTS
ENERGY RANGE
ENERGY RESOLUTION
EV RANGE
FERMIONS
FLUIDS
GASES
INTERACTIONS
KRYPTON
LEPTONS
MATTER
MEV RANGE
NONMETALS
POSITRON COLLISIONS
POSITRON-ATOM COLLISIONS
POSITRONIUM
POSITRONS
RARE GASES
RELATIVISTIC RANGE
RESOLUTION
SCATTERING