A Study of Leading Strange Meson Resonances And Spin-Orbit Splittings in K^-p → K^-π⁺n at 11 GeV/c [Thesis]

Technical Report · Sat Nov 01 04:00:00 EST 1980

DOI:https://doi.org/10.2172/6596135· OSTI ID:6596135

Honma, Alan Kern ^[1]

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1. SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)

The results from a high-statistics study of Kπelastic scattering in the reaction K^-p → K^-π⁺n are presented. The data for this analysis are taken from an 11-GeV/c K/sup -/p experiment performed on the Large Aperture Solenoidal Spectrometer (LASS) facility at the Stanford Linear Accelerator Center (SLAC). By selecting the very forward produced K^-π⁺ events, a sample consisting of data for the Kπ → Kπ elastic scattering reaction was extracted. The angular distribution for this meson-meson scattering is studied by use of both a spherical harmonic moments analysis and a partial-wave analysis (PWA). The previously established leading natural spin-parity strange meson resonances (the J^P = 1^- K*(895), the 2⁺ K*(1430), and the 3^- K*(1780)) are observed in the results from both the moments analysis and the PWA. In addition, evidence for a new spin 4^- K* resonance with a mass of 2080 MeV and a width of about 225 MeV is presented. The results from the PWA confirm the existence of a 0⁺ κ (1490) and propose the existence of a second scalar meson resonance, the 0⁺ κ' (1900). Structure in the P-wave amplitude indicates resonance behavior in the mass region near 1700 MeV. In two of the four ambiguous solutions for the mass region above 1800 MeV, there is strong evidence for another P-wave resonant structure near 2100 MeV. The observed strange meson resonances are found to have a natural interpretation in terms of states predicted by the quark model. In particular, the mass splittings of the leading trajectory natural spin-parity strange meson states and the mass splittings between the spin-orbit triplet states are discussed. 59 figures, 17 tables.

• Research Organization: SLAC National Accelerator Laboratory (SLAC), Menlo Park, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: AC03-76SF00515
• OSTI ID: 6596135
• Report Number(s): SLAC--235; SLAC-R--235
• Country of Publication: United States
• Language: English

Related Subjects

645104* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ANGULAR DISTRIBUTION
BARYONS
BOSONS
CHERENKOV COUNTERS
COMPOSITE MODELS
COUPLING
DATA
DISTRIBUTION
ELASTIC SCATTERING
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
FERMIONS
FINAL-STATE INTERACTIONS
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
HODOSCOPES
INFORMATION
INTERACTIONS
INTERMEDIATE COUPLING
K RESONANCES
K-1420 RESONANCES
K-892 RESONANCES
KAON MINUS-PROTON INTERACTIONS
KAON-NUCLEON INTERACTIONS
KAON-PROTON INTERACTIONS
KAONS
KAONS MINUS
L-1770 RESONANCES
L-S COUPLING
LINEAR MOMENTUM
MASS
MASS SPECTRA
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-MESON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
MOMENTS METHOD
MULTIWIRE PROPORTIONAL CHAMBERS
NEUTRONS
NUCLEONS
NUMERICAL DATA
PARTIAL WAVES
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTICLE PROPERTIES
PARTICLE WIDTHS
PION-KAON INTERACTIONS
PIONS
PIONS PLUS
PROPORTIONAL COUNTERS
PSEUDOSCALAR MESONS
QUARK MODEL
RADIATION DETECTORS
RESONANCE PARTICLES
SCATTERING
SCINTILLATION COUNTERS
SPARK CHAMBERS
SPECTRA
SPHERICAL HARMONICS METHOD
STRANGE PARTICLES
TENSOR MESONS
VECTOR MESONS