Rho and omega production in pi/sup +/p interactions at 15. 7 GeV/c
We report the results of a study of rho and ..omega.. production in ..pi../sup +/p interactions at 15.7 GeV/c. The SLAC hybrid bubble-chamber facility was used to study reactions in which neutral particles are produced. Three tantalum plates inside the 40-in. bubble chamber and a large array of lead glass downstream of the chamber provided photon detection over a large solid angle. Final states with two neutral particles have been isolated with kinematic fits in which neutral pions were reconstructed in the plates and lead glass. Data from an earlier untriggered ..pi../sup +/p bubble-chamber experiment at 15 GeV/c were used to obtain samples of events in channels which did not trigger the hybrid system. Cross sections for rho and ..omega.. production are given for several exclusive final states. Relative rho and ..omega.. production rates are studied. The ratio of nondiffractive ..omega.. to rho/sup 0/ production is measured to be ..omega../rho/sup 0/ = 0.44 +- 0.07. We estimate the inclusive ..omega.. cross section to be 1.9 +- 0.3 mb. The results are compared to the Lund model of low-p/sub T/ hadronic reactions.
- Research Organization:
- Duke University, Durham, North Carolina 27706
- OSTI ID:
- 6059595
- Journal Information:
- Phys. Rev. D; (United States), Journal Name: Phys. Rev. D; (United States) Vol. 36:7; ISSN PRVDA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BOSONS
BUBBLE CHAMBERS
COMPOSITE MODELS
ELEMENTARY PARTICLES
ENERGY RANGE
FERMIONS
GAS TRACK DETECTORS
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
HYPERONS
INCLUSIVE INTERACTIONS
INTERACTIONS
MATHEMATICAL MODELS
MEASURING INSTRUMENTS
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NEUTRONS
NUCLEONS
OMEGA BARYONS
OMEGA PARTICLES
PARTICLE INTERACTIONS
PARTICLE MODELS
PARTICLE PRODUCTION
PARTON MODEL
PION PLUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PIONS
PROTONS
PSEUDOSCALAR MESONS
QUARK MODEL
RADIATION DETECTORS
STRANGE PARTICLES