Published June 1991 | Version v1
Journal article Metadata-only

Study of the centrally produced ππ and Kanti K systems

Creators

  • 1. CERN, Geneva (Switzerland)
  • 2. College de France, 75 - Paris (France)
  • 3. Birmingham Univ. (UK). Dept. of Physics
  • 4. INFN, Bari (Italy)
  • 5. Bari Univ. (Italy). Dipt. di Fisica
  • 6. Athens Univ. (Greece). Nuclear Physics Dept.

Description

We have studied the ππ and Kanti K systems centrally produced in proton proton collisions at 300 GeV/c. Clear evidence for S*/f0(975) production is observed. An analysis performed on the π+ π- mass spectrum in the 1.0 GeV region, using a coupled channel formalism, shows that it is possible to describe the S*/f0(975) effect with one single resonance, and requires interference of the S*/f0(975 with the S-wave background. The resulting S*/f0(975) parameters are m0 = 979 ± 4 MeV, gπ = 0.28 ± 0.04, gK = 0.56 ± 0.18. Evidence is found for a structure having a mass of 1472 ± 12 MeV and a width of 195 ± 33 MeV. (orig.)

Additional details

Publishing Information

Journal Title
Nuclear Physics. B, Proceedings Supplements
Journal Volume
21
Series
Nucl. Phys., B Proc. Suppl.
Journal Page Range
49-54
ISSN
0920-5632
CODEN
NPBSE

Conference

Title
Rheinfels workshop on hadron mass spectrum.
Dates
3-6 Sep 1990.
Place
St. Goar (Germany).

INIS

Country of Publication
Netherlands
Country of Input or Organization
Netherlands
INIS RN
23003287
Subject category
S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
Resource subtype / Literary indicator
Conference, Numerical Data
Descriptors DEI
BRANCHING RATIO; COUPLED CHANNEL THEORY; COUPLING CONSTANTS; EFFECTIVE MASS; EXPERIMENTAL DATA; F0-975 MESONS; F2-1270 MESONS; F2-1525 MESONS; F2-1720 MESONS; GEV RANGE 100-1000; HADRONIC PARTICLE DECAY; INTERFERENCE; KAONS MINUS; KAONS PLUS; MASS SPECTRA; PAIR PRODUCTION; PARTICLE WIDTHS; PIONS MINUS; PIONS PLUS; PROTON-PROTON INTERACTIONS; PROTONS; QUASI-ELASTIC SCATTERING; REST MASS; RHO-770 MESONS; S WAVES
Descriptors DEC
BARYON-BARYON INTERACTIONS; BARYONS; BOSONS; CATIONS; CHARGED PARTICLES; DATA; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; FERMIONS; GEV RANGE; HADRON-HADRON INTERACTIONS; HADRONS; HYDROGEN IONS; HYDROGEN IONS 1 PLUS; INFORMATION; INTERACTIONS; IONS; KAONS; MASS; MESONS; NUCLEAR REACTIONS; NUCLEON-NUCLEON INTERACTIONS; NUCLEONS; NUMERICAL DATA; PARTIAL WAVES; PARTICLE DECAY; PARTICLE INTERACTIONS; PARTICLE PRODUCTION; PARTICLE PROPERTIES; PIONS; PROTON-NUCLEON INTERACTIONS; PSEUDOSCALAR MESONS; QUARKONIUM; SCALAR MESONS; SCATTERING; SPECTRA; STRANGE MESONS; STRANGE PARTICLES; STRANGEONIUM; TENSOR MESONS; VECTOR MESONS

Optional Information

Collaborations
WA76 Collaboration.