Published January 2, 1989 | Version v1
Journal article Metadata-only

Baryon wave functions and cross sections for photon annihilation to baryon pairs

Creators

  • 1. Rutgers - the State Univ., New Brunswick, NJ (USA). Dept. of Physics and Astronomy
  • 2. AN SSSR, Novosibirsk. Inst. Yadernoj Fiziki

Description

The first few moments of the wave functions for Δ's and Ω are evaluated by QCD sum rules. Model wave functions are constructed based on these moments. Perturbative QCD predictions of cross sections for γγ → Δ++anti Δ++ and γγ → Ωanti Ω are obtained by integrating the quark scattering amplitudes over these wave functions. The ratio of γγ → Δ++anti Δ++ and γγ → panti p cross sections is much lower than would be naively expected. Predictions for γγ → B8anti B8 are also given for the full baryon octet with QCD sum-rule wave functions. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Physics B, Particle Physics
Journal Volume
311
Journal Issue
3
Series
Nucl. Phys. B, Part. Phys.
Journal Page Range
585-612
ISSN
0550-3213
CODEN
NUPBB

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
20020827
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
ANGULAR DISTRIBUTION; ANTILAMBDA PARTICLES; ANTIOMEGA PARTICLES; ANTIPROTONS; ANTISIGMA PARTICLES; ANTIXI PARTICLES; BARYON OCTETS; BOSE-EINSTEIN CONDENSATION; DELTA-1232 BARYONS; DIFFERENTIAL CROSS SECTIONS; LAMBDA PARTICLES; OMEGA PARTICLES; PAIR PRODUCTION; PERTURBATION THEORY; PHOTON-PHOTON INTERACTIONS; PHOTOPRODUCTION; PROTONS; QUANTUM CHROMODYNAMICS; SCATTERING AMPLITUDES; SIGMA MINUS PARTICLES; SIGMA NEUTRAL PARTICLES; SIGMA PLUS PARTICLES; SUM RULES; THEORETICAL DATA; WAVE FUNCTIONS; XI MINUS PARTICLES; XI NEUTRAL PARTICLES
Descriptors DEC
AMPLITUDES; ANTIBARYONS; ANTIHYPERONS; ANTIMATTER; ANTINUCLEI; ANTINUCLEONS; ANTIPARTICLES; BARYONS; BASIC INTERACTIONS; CATIONS; CHARGED PARTICLES; CROSS SECTIONS; DATA; DELTA BARYONS; DISTRIBUTION; ELECTROMAGNETIC INTERACTIONS; ELEMENTARY PARTICLES; EQUATIONS; FERMIONS; FIELD THEORIES; FUNCTIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; HYPERONS; INFORMATION; INTERACTIONS; IONS; LAMBDA BARYONS; MATTER; MULTIPLETS; N*BARYONS; NUCLEI; NUCLEONS; NUMERICAL DATA; OMEGA BARYONS; PARTICLE INTERACTIONS; PARTICLE MULTIPLETS; PARTICLE PRODUCTION; QUANTUM FIELD THEORY; SIGMA BARYONS; SIGMA PARTICLES; STRANGE PARTICLES; XI BARYONS; XI PARTICLES

Optional Information

Contract/Grant/Project number
Contract DE-AS05-76ER04928; PHY-84-15535-05