Published April 20, 1989 | Version v1
Journal article Metadata-only

e+e- production in proton-neutron collisions

Creators

  • 1. Giessen Univ. (Germany, F.R.). Inst. fuer Theoretische Physik

Description

The production of e+e- pairs via proton-neutron bremsstrahlung is calculated in a covariant way based on a realistic meson exchange approximation for the pn scattering amplitude. Significant differences between the exact calculations and estimates used so far in the literature are pointed out and discussed. The calculations are applied to the reaction p+Be at 1 GeV by adopting the independent NN collision model and are shown to account well for the recently measured differential e+e- spectra. (orig.)

Additional details

Publishing Information

Journal Title
Physics Letters, (Section) B
Journal Volume
221
Journal Issue
1
Series
Phys. Lett., B.
Journal Page Range
1-5
ISSN
0370-2693
CODEN
PYLBA

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
20050774
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S73: NUCLEAR PHYSICS AND RADIATION PHYSICS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BERYLLIUM 9 TARGET; BREMSSTRAHLUNG; DIFFERENTIAL CROSS SECTIONS; EFFECTIVE MASS; ELECTRONS; FERMI GAS MODEL; FEYNMAN DIAGRAM; MASS SPECTRA; MEV RANGE 100-1000; NEUTRONS; OPE MODEL; PAIR PRODUCTION; POSITRONS; PROTON REACTIONS; PROTON-NEUTRON INTERACTIONS; PROTONS; QUASI-ELASTIC SCATTERING; RELATIVISTIC RANGE; SCATTERING AMPLITUDES; THEORETICAL DATA
Descriptors DEC
AMPLITUDES; ANTILEPTONS; ANTIMATTER; ANTIPARTICLES; BARYON REACTIONS; BARYON-BARYON INTERACTIONS; BARYONS; BOSON-EXCHANGE MODELS; CATIONS; CHARGED PARTICLES; CROSS SECTIONS; DATA; DIAGRAMS; ELECTROMAGNETIC RADIATION; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; HADRON REACTIONS; HADRON-HADRON INTERACTIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; INTERACTIONS; IONS; LEPTONS; MASS; MATHEMATICAL MODELS; MATTER; MEV RANGE; NUCLEAR MODELS; NUCLEAR REACTIONS; NUCLEON REACTIONS; NUCLEON-NUCLEON INTERACTIONS; NUCLEONS; NUMERICAL DATA; OBE MODEL; PARTICLE INTERACTIONS; PARTICLE MODELS; PARTICLE PRODUCTION; PERIPHERAL MODELS; PROTON-NUCLEON INTERACTIONS; RADIATIONS; SCATTERING; SPECTRA; TARGETS