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Analysis of the reaction. pi. /sup -/p. -->. pi. /sup 0/etan at 40 GeV/c

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:5372243
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We have analyzed the reaction ..pi../sup -/p ..-->.. ..pi../sup 0/etan(eta ..-->.. 2..gamma..) on the basis of the data from an experiment carried out in the 70-GeV accelerator at Serpukhov with use of the NICE 648-channel hodoscopic spectrometer for detection of the ..gamma.. rays. We used a method which permits determination of the number of ..pi../sup 0/eta events for each interval in mass, costheta/sub GJ/, and t. For the ..pi../sup 0/eta system we obtained mass spectra, t distributions, and distributions in the decay angle. The cross section for production of A/sup 0//sub 2/ mesons at momentum 40 GeV/c was found to be 2.7 +- 1.0 ..mu..b. No indications were obtained of a 1/sup -/ resonance in the ..pi../sup 0/eta system, although such a state is allowed for the ..pi../sup 0/eta system on the same basis as the observed 0/sup +/ and 2/sup +/ resonances.
Research Organization:
Joint Experiment of the Institute of High Energy Physics (Serpukhov, USSR) and CERN (Geneva, Switzerland)
OSTI ID:
5372243
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 41:1; ISSN SJNCA
Country of Publication:
United States
Language:
English

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Related Subjects

645104* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
A RESONANCES
A2-1310 RESONANCES
ANGULAR DISTRIBUTION
BARYONS
BOSONS
CROSS SECTIONS
DATA
DISTRIBUTION
ELEMENTARY PARTICLES
ENERGY RANGE
ETA MESONS
EXPERIMENTAL DATA
FERMIONS
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
INFORMATION
INTERACTIONS
MASS SPECTRA
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NEUTRONS
NUCLEONS
NUMERICAL DATA
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PIONS
PIONS NEUTRAL
PSEUDOSCALAR MESONS
RESONANCE PARTICLES
SPECTRA
TENSOR MESONS