Evidence for two pseudoscalar resonances of eta. pi. /sup +/. pi. /sup -/ system in the D(1285) and E/iota regions

Journal Article · Mon Sep 15 00:00:00 EDT 1986 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.57.1296· OSTI ID:5214015

Ando, A; Imai, K; Inaba, S; Inagaki, T; Inagaki, Y; Itano, A; Kobayashi, S; Maruyama, K; Murakami, A; Nakamura, T; others, and

High-statistics data on the ..pi../sup -/p..-->..eta..pi../sup +/..pi../sup -/n reaction at 8.06 GeV/c were obtained. An isobar-model partial-wave analysis was performed for the eta..pi pi.. system. The eta(1275) meson was confirmed as a narrow IJ/sup P//sup C/ -- 00/sup -+/ resonance. It decays through both delta..pi.. and epsiloneta. A narrow state with IJ/sup P//sup C/ -- 00/sup -+/ was found in an eta..pi pi.. decay channel at 1.42 GeV. It has a prominent peak in a delta..pi.. decay mode. No significant E(1420) signal with IJ/sup P//sup C/ -- 01/sup ++/ was found near the mass region of 1.42 GeV.

• Research Organization: National Laboratory for High Energy Physics (KEK), Tsukuba, Ibaraki 305, Japan
• OSTI ID: 5214015
• Journal Information: Phys. Rev. Lett.; (United States), Vol. 57:11
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
D-1285 RESONANCES
PARTICLE PRODUCTION
E-1422 RESONANCES
PION MINUS-PROTON INTERACTIONS
PARTIAL WAVES
PSEUDOSCALAR MESONS
ETA MESONS
EXPERIMENTAL DATA
GEV RANGE 01-10
HADRONIC PARTICLE DECAY
ISOBAR MODEL
MASS SPECTRA
MISSING MASS
NEUTRONS
PIONS MINUS
PIONS PLUS
BARYONS
BOSONS
DATA
DECAY
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GEV RANGE
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
MASS
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NUCLEONS
NUMERICAL DATA
PARTICLE DECAY
PARTICLE INTERACTIONS
PARTICLE MODELS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PIONS
SPECTRA
645104* - High Energy Physics- Particle Interactions & Properties-Experimental- Strong Meson-Induced Interactions- (-1987)