Differential cross section for production of eta mesons in carbon by 3. 3-GeV/c. pi. /sup -/ mesons
Journal Article
·
· Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:6659744
We report the results of an experimental study of the reaction ..pi../sup -/A/sub z/ ..-->..etaA/sub z/-1, eta..--> gamma gamma.. in the carbon nucleus at a pion momentum 3.3 GeV/c. The differential cross section dsigma/dt for this reaction in the region of squared 4-momentum transfer t/sub min/< or =-t< or =0.4 (GeV/c)/sup 2/ is compared with the differential cross section for the reaction in the free proton measured at the same pion momentum. In the differential cross section in the region -t< or approx. =0.1 (GeV/c)/sup 2/ we observe a minimum which appears more distinctly for carbon than in the reaction ..pi../sup -/p..-->..etan. By comparison of the cross sections of the two reactions in the framework of multiple diffraction scattering theory we have determined the effective number of nucleons in the carbon nucleus Z/sup C//sub ef/ = 3.2 +- 0.7. The dependence Z/sup C//sub ef/(t) is presented in the range of -t from 0 to 0.4 (GeV/c)/sup 2/.
- Research Organization:
- Joint Institute for Nuclear Research
- OSTI ID:
- 6659744
- Journal Information:
- Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 38:4; ISSN SJNCA
- Country of Publication:
- United States
- Language:
- English
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Journal Article
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· Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
·
OSTI ID:6500396
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Conference
·
Wed Dec 31 23:00:00 EST 1975
·
OSTI ID:7263230
Differential cross sections for the reaction. pi. /sup -/p. -->. eta. delta. /sup 0/(1232) at momenta 3. 3 and 4. 75 GeV/c
Journal Article
·
Wed Jun 01 00:00:00 EDT 1988
· Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
·
OSTI ID:6574460
Related Subjects
645104* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Meson-Induced Interactions-- (-1987)
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
ETA MESONS
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 01-10
HADRON REACTIONS
HADRONS
INFORMATION
MESON REACTIONS
MESONS
MOMENTUM TRANSFER
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE PRODUCTION
PION MINUS REACTIONS
PION REACTIONS
PSEUDOSCALAR MESONS
TARGETS
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
BOSONS
CARBON 12 TARGET
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DATA
DIFFERENTIAL CROSS SECTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
ETA MESONS
EXPERIMENTAL DATA
GEV RANGE
GEV RANGE 01-10
HADRON REACTIONS
HADRONS
INFORMATION
MESON REACTIONS
MESONS
MOMENTUM TRANSFER
NUCLEAR REACTIONS
NUMERICAL DATA
PARTICLE PRODUCTION
PION MINUS REACTIONS
PION REACTIONS
PSEUDOSCALAR MESONS
TARGETS