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Analysis of the reaction. pi. /sup /minus//p /r arrow/. pi. /sup 0//eta/ n at 100 GeV GAMS-NA12 Collaboration

Conference · · AIP Conf. Proc.; (United States)
OSTI ID:6197366
A partial wave analysis of the ..pi../sup 0//eta/ angular distributions has been performed using three different methods. It clearly indicates the existence of a resonance with exotic quantum numbers: /ital J//sup /ital PC//=1/sup /minus/+/, /ital I//sup /ital G//=1/sup /minus// at /ital M//sub ..pi..//sup 0//sub /eta///congruent/1400 MeV. This is the first observation of a meson that can in no way be a /ital qq/bar // state. A new peak is also observed in the S wave at /ital M//sub ..pi..//sup 0//sub /eta///congruent/1300 MeV, it could be the regular ..cap alpha../sub 0/ member of the /sup 3//ital P//sub 0/ scalar nonet.
Research Organization:
LAPP, 74019 Annecy-le-Vieux France AMS-NA12 Collaboration(FR)
OSTI ID:
6197366
Report Number(s):
CONF-880862-
Conference Information:
Journal Name: AIP Conf. Proc.; (United States) Journal Volume: 185:1
Country of Publication:
United States
Language:
English

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Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
645201 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- General & Scattering Theory
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
A0-980 MESONS
A2-1320 MESONS
ANGULAR DISTRIBUTION
BARYONS
BOSONS
BRANCHING RATIO
CHARGE-EXCHANGE REACTIONS
DATA
DATA ANALYSIS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
ETA MESONS
EXPERIMENTAL DATA
F0-1300 MESONS
FERMIONS
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
INELASTIC SCATTERING
INFORMATION
INTERACTIONS
MASS
MASS SPECTRA
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NEUTRONS
NUCLEAR REACTIONS
NUCLEONS
NUMERICAL DATA
PARTIAL WAVES
PARTICLE INTERACTIONS
PARTICLE PROPERTIES
PARTICLE WIDTHS
PHYSICAL PROPERTIES
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
SCALAR MESONS
SCATTERING
SPECTRA
TENSOR MESONS