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Evidence for axial-vector and pseudoscalar resonances near 1. 275 GeV in eta. pi. /sup +/. pi. /sup -/

Journal Article · · Phys. Rev. Lett.; (United States)
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We present the first results from an isobar-model phase-shift analysis of the eta..pi../sup +/..pi../sup -/ system. The D (1275) meson is established as a narrow (GAMMA approx. 10 MeV) IJ/sup P/ = 01/sup +/ resonance. Beneath the D is a broader (GAMMA approx. 70 MeV) IJ/sup P/ = 00/sup -/ state which is a candidate for the radially excited eta. The data are consistent with the existence of another 00/sup -/ object of comparable width near 1.4 GeV.
Research Organization:
Department of Physics, The Ohio State University, Columbus, Ohio 43210
OSTI ID:
6461012
Journal Information:
Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 42:6; ISSN PRLTA
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
ALGEBRAIC CURRENTS
ANGULAR MOMENTUM
AXIAL-VECTOR CURRENTS
BOSONS
CURRENTS
D-1285 RESONANCES
DATA
DATA FORMS
ELEMENTARY PARTICLES
ENERGY RANGE
ETA MESONS
EXPERIMENTAL DATA
GAMMA SPECTRA
GEV RANGE
GEV RANGE 01-10
GRAPHS
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
ISOBAR MODEL
MASS
MATHEMATICAL MODELS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
MISSING MASS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PARTICLE WIDTHS
PHASE SHIFT
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PIONS
PIONS MINUS
PIONS PLUS
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
SPECTRA