Investigation of higher-mass even-G states from 15-GeV/c π+d collisions
Creators
- 1. Department of Physics, University of Tennessee, Knoxville, Tennessee 37916
Description
From a study of 15-GeV/c π+-deuterium interactions obtained in an 890 000-picture exposure in the SLAC 82-in. bubble chamber, evidence is presented for at least two broad dipion states beyond the g(1680) region. These states appear in the spectrum representing highly peripheral interactions, and in the spectra obtained by eliminating those interactions for which the transverse momentum of each pion is less than a specified minimum value. Further, examination of the π+π-MM (missing mass) spectrum from the reaction π+n → pπ+π-(MM) indicates that agreement with the previously obtained branching ratios is possible only if higher-mass dipion states are present. Evidence is also presented which suggests a finite decay probability of the g (or a state of similar mass) into π+π-eta and/or π+π-eta'
Additional details
Publishing Information
- Journal Title
- Phys. Rev., D
- Journal Volume
- 21
- Journal Issue
- 7
- Series
- Phys. Rev., D.
- Journal Page Range
- 1744-1749
- ISSN
- 0556-2821
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 11551000
- Subject category
- S72: PHYSICS OF ELEMENTARY PARTICLES AND FIELDS;
- Descriptors DEI
- BRANCHING RATIO; BUBBLE CHAMBERS; DEUTERIUM TARGET; GEV RANGE 10-100; MASS; MESON RESONANCES; MISSING MASS; PARTICLE DECAY; PARTICLE PRODUCTION; PION REACTIONS; PIONS PLUS; PROBABILITY; RHO-1670 RESONANCES; TRANSVERSE MOMENTUM
- Descriptors DEC
- BOSONS; DECAY; ELEMENTARY PARTICLES; ENERGY RANGE; GAS TRACK DETECTORS; GEV RANGE; HADRON REACTIONS; HADRONS; INTERACTIONS; LINEAR MOMENTUM; MEASURING INSTRUMENTS; MESON REACTIONS; MESONS; NUCLEAR REACTIONS; PARTICLE INTERACTIONS; PIONS; PSEUDOSCALAR MESONS; RADIATION DETECTORS; RESONANCE PARTICLES; TARGETS