Scalar mesons in. pi pi. and K-barK: Results of a unitary amplitude analysis

Journal Article · Mon Nov 03 04:00:00 EST 1980 · Phys. Rev. Lett.; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.45.1469· OSTI ID:6788572

Wicklund, A B; Ayres, D S; Cohen, D; Diebold, R; Pawlicki, A J

The ..pi pi -->..K-barK S wave has been extracted from an amplitude analysis of K-barK production. With use of unitarity constraints, evidence has been found for a resonance in ..pi pi -->..K-barK at 1425 +- 14 MeV/c/sup 2/ having a width 160 +- 30 MeV/c/sup 2/; this state is a likely candidate for the QQ-bar, J/sup P/C=0/sup + +/ nonet. It is shown that the S*(980), which is a background to this resonance, must be a very broad effect and is likely a K-barK virtual bound state.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439.
• OSTI ID: 6788572
• Journal Information: Phys. Rev. Lett.; (United States), Journal Name: Phys. Rev. Lett.; (United States) Vol. 45:18; ISSN PRLTA
• Country of Publication: United States
• Language: English

Related Subjects

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72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
BOUND STATE
COUPLED CHANNEL THEORY
ELASTIC SCATTERING
ELEMENTARY PARTICLES
GLUONS
HADRON-HADRON INTERACTIONS
HADRONS
INELASTIC SCATTERING
INTERACTIONS
KAONS
MESON RESONANCES
MESON-MESON INTERACTIONS
MESONS
PAIR PRODUCTION
PARTIAL WAVES
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PHASE SHIFT
PION-PION INTERACTIONS
POSTULATED PARTICLES
PSEUDOSCALAR MESONS
QUARKS
RESONANCE PARTICLES
RESONANCE SCATTERING
S WAVES
SCALAR MESONS
SCATTERING
STRANGE PARTICLES
UNITARITY