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Phi production and the OZI rule in. pi. /sup +/d interactions at 10 GeV/c

Technical Report ·
OSTI ID:6831715
A study of the Okubo Zweig-Iizuka (OZI) rule in ..pi../sup +/d interactions at 10 GeV/c has been performed using the Large Aperture Solenoid Spectrometer (LASS) at the Stanford Linear Accelerator Center. Measurements of the cross sections sigma(..pi../sup +/n ..-->.. phi p) = 179 +- 72 nb and sigma(..pi../sup +/p ..-->.. phi ..delta../sup + +/) = 172 +- 75 nb for the OZI forbidden reactions ..pi../sup +/n ..-->.. phi p and ..pi../sup +/p ..-->.. phi ..delta../sup + +/ are consistent with the hypothesis of the phi being produced solely by its nonstrange quark component as determined from the octet-singlet mixing angle resulting from application of the Gell-Mann-Okubo mass formula to the vector meson nonet. A cross section upper limit for the interesting OZI rule associated reaction ..pi../sup +/n ..-->.. K/sup +/ phi ..lambda.. is measured to be sigma(..pi../sup +/n ..-->.. K/sup +/ phi ..lambda..) < 66 nb. A cross section is established for the K/sup +/K/sup -/..pi../sup +/..pi../sup -/ decay mode of the phi prime; sigma(..pi../sup +/n ..-->.. phi'p)B(phi' ..-->.. K/sup +/K/sup -/..pi../sup +/..pi../sup -/) = 528 +- 290 nb. An upper limit for the K/sub s//sup 0//K/sup +-/..pi../sup -+/ decay mode of the phi prime is established as a function of the phi prime mass.
Research Organization:
Ames Lab., IA (USA)
DOE Contract Number:
W-7405-ENG-82
OSTI ID:
6831715
Report Number(s):
IS-T-983; ON: DE83004983
Country of Publication:
United States
Language:
English

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Related Subjects

645101* -- High Energy Physics-- Particle Interactions &amp; Properties-Experimental-- Electromagnetic Interactions &amp; Properties
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DEUTERIUM TARGET
ELEMENTARY PARTICLES
ENERGY RANGE
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 10-100
HADRON REACTIONS
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
KAONS
MASS FORMULAE
MESON REACTIONS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NUCLEAR REACTIONS
NUMERICAL DATA
OKUBO MASS FORMULA
PAIR PRODUCTION
PARTICLE INTERACTIONS
PION PLUS REACTIONS
PION PLUS-NEUTRON INTERACTIONS
PION PLUS-PROTON INTERACTIONS
PION REACTIONS
PION-NEUTRON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PSEUDOSCALAR MESONS
STRANGE PARTICLES
TARGETS