Published October 8, 1979
| Version v1
Journal article
Study of the reaction e+e-→panti p in the total energy range 1925-2180 MeV
Creators
- 1. Paris-11 Univ., 91 - Orsay (France). Lab. de l'Accelerateur Lineaire
Description
The e+e-→panti p cross section has been measured between 1925 and 2180 MeV. About 50 panti p events were detected. The total cross section decreases from 1.31+-0.4 nb near 1937 MeV to 0.55+-0.2 nb near 2135 MeV. The proton form factors (mod(Gsub(E)))2 and (mod(Gsub(M)))2, assumed identical, decrease from 0.15+-0.05 to 0.043+-0.015. They are an order of magnitude higher than predicted by the well-known dipole fit. The energy range has been scanned in steps of about 2 MeV. No significant structure was found in this panti p sample. (Auth.)
Additional details
Publishing Information
- Journal Title
- Phys. Lett., B
- Journal Volume
- 86
- Journal Issue
- 3-4
- Series
- Phys. Lett., B.
- Journal Page Range
- 395-398
- ISSN
- 0370-2693
INIS
- Country of Publication
- Netherlands
- Country of Input or Organization
- Netherlands
- INIS RN
- 11507255
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- ANTIPROTONS; DIFFERENTIAL CROSS SECTIONS; ELECTRON-POSITRON INTERACTIONS; FORM FACTORS; GEV RANGE 01-10; PROTONS; TOTAL CROSS SECTIONS
- Descriptors DEC
- ANTIBARYONS; ANTIMATTER; ANTINUCLEI; ANTINUCLEONS; ANTIPARTICLES; BARYONS; CATIONS; CHARGED PARTICLES; CROSS SECTIONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INTERACTIONS; IONS; LEPTON-LEPTON INTERACTIONS; MATTER; NUCLEI; NUCLEONS; PARTICLE INTERACTIONS; PARTICLE PROPERTIES