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Evidence for a new pseudoscalar resonance at 1. 26 GeV. [8. 45 GeV/c, isobar model, phase shift]

Conference ·
OSTI ID:6500472
; ;
Further results are presented from an isobar-model phase shift analysis of the eta ..pi../sup +/..pi../sup -/ system produced in ..pi../sup -/p ..-->.. eta ..pi../sup +/..pi../sup -/n at 8.45 GeV/c. We fine, in addition to the narrow (GAMMA approx. 25 MeV) D meson with IJ/sup P/ = 01/sup +/ at 1.275 GeV, a broad (GAMMA approx. 100 MeV) 00- object centered near 1.26 GeV and decaying mainly into delta ..pi... There is an indication of a second broad pseudoscalar near 1.40 GeV decaying into epsilon eta.
Research Organization:
Carleton Univ., Ottawa, Ontario (Canada). Dept. of Physics; McGill Univ., Montreal, Quebec (Canada). Dept. of Physics
DOE Contract Number:
EY-76-C-02-1545
OSTI ID:
6500472
Report Number(s):
COO-1545-241; CONF-780826-12
Country of Publication:
United States
Language:
English

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Related Subjects

645104* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
D-1285 RESONANCES
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
ETA MESONS
FERMIONS
GEV RANGE
GEV RANGE 01-10
HADRON-HADRON INTERACTIONS
HADRONIC PARTICLE DECAY
HADRONS
INTERACTIONS
ISOBAR MODEL
LINEAR MOMENTUM
MASS SPECTRA
MATHEMATICAL MODELS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NEUTRONS
NUCLEONS
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PHASE SHIFT
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PIONS
PIONS MINUS
PIONS PLUS
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
SPECTRA