Amplitude analysis of the K/sup -/K/sup +/ system produced in the reactions. pi. /sup -/p. -->. K/sup -/K/sup +/n and. pi. /sup +/n. -->. K/sup -/K/sup +/p at 6 GeV/c

Journal Article · Mon Dec 01 04:00:00 EST 1980 · Phys. Rev., D; (United States)

DOI:https://doi.org/10.1103/PhysRevD.22.2595· OSTI ID:7053365

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

We have carried out an amplitude analysis of the K/sup -/K/sup +/ system produced in the reactions ..pi../sup -/p..-->..K/sup -/K/sup +/n and ..pi../sup +/n..-->..K/sup -/K/sup +/p using data from a high-statistics experiment performed with the Argonne effective-mass spectrometer. Combining the results from the two reactions allows us to analyze the K-barK production amplitudes in terms of their isospin-zero and -one components. We use phenomenological arguments based on t dependence and on the expected properties of the P and D waves to resolve ambiguities. Our favored solution exhibits an enhancement around 1300 MeV in the isospin-zero S wave produced by ..pi.. exchange. In this solution the Argand plot for the ..pi pi -->..K-barK S wave changes rapidly above 1300 MeV, consistent with a resonance at 1425 +- 15 MeV with width 160 +- 30 MeV. We show that our solution is consistent with the features of neutral and charged K-barK systems found in other experiments.

• Research Organization: Argonne National Laboratory, Argonne, Illinois 60439
• DOE Contract Number: W-31109-ENG-38
• OSTI ID: 7053365
• Journal Information: Phys. Rev., D; (United States), Journal Name: Phys. Rev., D; (United States) Vol. 22:11; ISSN PRVDA
• Country of Publication: United States
• Language: English

Related Subjects

645104* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
645206 -- High Energy Physics-- Particle Interactions & Properties-Theoretical-- Strong Interactions
Baryon No. = 1-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
AMPLITUDES
ANGULAR DISTRIBUTION
ARGAND DIAGRAMS
BOSONS
COMPOSITE MODELS
COUPLING CONSTANTS
CROSS SECTIONS
DATA
DIAGRAMS
DIFFERENTIAL CROSS SECTIONS
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 01-10
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
ISOSPIN
KAONS
MATHEMATICAL MODELS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NUMERICAL DATA
PAIR PRODUCTION
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PROPERTIES
PHASE SHIFT
PION MINUS-PROTON INTERACTIONS
PION PLUS-NEUTRON INTERACTIONS
PION-NEUTRON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PSEUDOSCALAR MESONS
QUARK MODEL
SCATTERPLOTS
STRANGE PARTICLES