Published March 21, 1994 | Version v1
Journal article Metadata-only

Energy-dependent measurements of the pp elastic analyzing power and narrow dibaryon resonances

Creators

  • 1. Tohoku Univ., Sendai (Japan). Dept. of Physics
  • 2. Tokyo Inst. of Tech. (Japan). Dept. of Physics
  • 3. Texas A and M Univ., College Station, TX (United States)
  • 4. National Lab. for High Energy Physics (KEK), Tsukuba (Japan)
  • 5. Kyoto Univ. (Japan). Dept. of Physics

Description

The energy dependence of the pp elastic analyzing power has been measured using an internal target during polarized beam acceleration. The data were obtained in incident-energy steps varying from 4 to 17 MeV over an energy range from 0.5 to 2.0 GeV. The statistical uncertainty of the analyzing power is typically less than 0.01. A narrow structure is observed around 2.17 GeV in the two-proton invariant mass distribution. A possible explanation for the structure with narrow resonances is discussed. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Physics. A
Journal Volume
569
Journal Issue
4
Journal Page Range
p. 791-820.
ISSN
0375-9474
CODEN
NUPABL

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
25053566
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
DIFFERENTIAL CROSS SECTIONS; DIPROTONS; EFFECTIVE MASS; ELASTIC SCATTERING; ENERGY DEPENDENCE; EXCITATION FUNCTIONS; EXPERIMENTAL DATA; F WAVES; GEV RANGE 01-10; HADRONIC PARTICLE DECAY; INTEGRAL CROSS SECTIONS; MASS SPECTRA; P WAVES; PARTICLE WIDTHS; POLARIZATION-ASYMMETRY RATIO; POLARIZED BEAMS; PROTON-PROTON INTERACTIONS; PROTONS; RESONANCE; REST MASS
Descriptors DEC
BARYON-BARYON INTERACTIONS; BARYONS; BEAMS; CATIONS; CHARGED PARTICLES; CROSS SECTIONS; DATA; DECAY; DIBARYONS; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRON-HADRON INTERACTIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; INTERACTIONS; IONS; MASS; NUCLEON-NUCLEON INTERACTIONS; NUCLEONS; NUMERICAL DATA; PARTIAL WAVES; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PROPERTIES; PROTON-NUCLEON INTERACTIONS; SCATTERING; SPECTRA