Published 1994 | Version v1
Report Open

Inelastic cross sections for positron scattering from atomic hydrogen

Creators

  • 1. Bielefeld Univ. (Germany). Fakultaet fuer Physik
  • 2. Brookhaven National Lab., Upton, NY (United States)

Description

Positronium formation (Ps) cross sections for positrons impinging on atomic hydrogen were measured in the impact energy range from 13eV to 255eV at the High Intensity Positron (HIP) beam at Brookhaven National Laboratory (BNL). The Ps-formation cross section was found to rise rapidly from the threshold at 6.8eV to a maximum value of (2.98 ± 0.18) x 10-16 cm2 for ∼ 15eV positrons. By 75eV it drops below the detection limit of 0.17 x 10-16 cm2 which is the present level of statistical uncertainty. The experiment was modified to enable the measurement of doubly differential scattering cross sections

Availability note (English)

MF available from INIS under the Report Number; Also available from OSTI as DE95013845; NTIS; US Govt. Printing Office Dep.

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Additional details

Publishing Information

Imprint Pagination
6 p.
Report number
BNL--61720

Conference

Title
10. international conference on positron annihilation.
Dates
23-29 May 1994.
Place
Beijing (China).

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
26075067
Subject category
S74: ATOMIC AND MOLECULAR PHYSICS; S74: ATOMIC AND MOLECULAR PHYSICS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
ANNIHILATION; ENERGY DEPENDENCE; EXPERIMENTAL DATA; HYDROGEN; INELASTIC SCATTERING; IONIZATION; POSITRON-ATOM COLLISIONS; POSITRONIUM; POSITRONS; PRODUCTION
Descriptors DEC
ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; ATOM COLLISIONS; COLLISIONS; DATA; ELEMENTARY PARTICLES; ELEMENTS; FERMIONS; INFORMATION; INTERACTIONS; LEPTONS; MATTER; NONMETALS; NUMERICAL DATA; PARTICLE INTERACTIONS; POSITRON COLLISIONS; SCATTERING

Optional Information

Contract/Grant/Project number
Contract AC02-76CH00016
Funding organization
USDOE, Washington, DC (United States).
Secondary number(s)
CONF-9405170--10.