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Reaction. pi. /sup -/p. -->. X/sup 0/n, X/sup 0/. -->. 2. gamma. at momenta 15 and 40 GeV/c

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:7290529
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The cross sections of the reactions ..pi../sup -/p..-->..X/sup 0/n with the decay X/sup 0/..-->..2..gamma.. were measured at momenta 15 and 40 GeV/c. About 500 events were registered. The ..gamma../sup -/ quantum pairs were detected with a hodoscopic spectrometer on line with a computer. The t-dependence of the differential cross section was found to be similar to that of the reaction ..pi../sup -/p..-->..etan. The angle of the singlet-octet mixing of the pseudoscalar mesons was determined from the ratio of the differential cross sections for the production of X/sup 0/ and eta mesons at t=0 and found to be ..beta..=-(16 +- 2) /sup 0/.
Research Organization:
Cooperative experiment of the Institute of High Energy Physics (Serpukhov, USSR) and CERN (Geneva, Switzerland)
OSTI ID:
7290529
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 25:3; ISSN SJNCA
Country of Publication:
United States
Language:
English

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Related Subjects

645101 -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Electromagnetic Interactions & Properties
645104* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BARYONS
BASIC INTERACTIONS
BOSONS
CHARGE-EXCHANGE INTERACTIONS
DECAY
ELECTROMAGNETIC RADIATION
ELEMENTARY PARTICLES
ENERGY RANGE
ETA-958 RESONANCES
FERMIONS
GAMMA RADIATION
GEV RANGE
GEV RANGE 10-100
HADRON-HADRON INTERACTIONS
HADRONS
INTERACTIONS
IONIZING RADIATIONS
MESON RESONANCES
MESON-BARYON INTERACTIONS
MESON-NUCLEON INTERACTIONS
MESONS
NEUTRONS
NUCLEONS
PARTICLE INTERACTIONS
PARTICLE PRODUCTION
PION MINUS-PROTON INTERACTIONS
PION-NUCLEON INTERACTIONS
PION-PROTON INTERACTIONS
PSEUDOSCALAR MESONS
RADIATIONS
RESONANCE PARTICLES
STRONG INTERACTIONS