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Study of resonance production in np-bar interactions at 6. 1 GeV/c

Journal Article · · Sov. J. Nucl. Phys. (Engl. Transl.); (United States)
OSTI ID:7065116

The inclusive production of the resonances rho/sup 0/(770), ..omega../sup 0/(780), f/sup 0/(1270), and ..delta..(1232) in n-barp interactions at 6.1 GeV/c is investigated. Events of n-barp interaction are obtained from d-barp data by separation of spectator antiprotons. Total and topological cross sections for ..delta../sup + +/ and rho/sup 0/ are given, and also estimates of the cross sections for the ..omega../sup 0/ and f/sup 0/ resonances. On the basis of G invariance of the n-barp reaction the total cross section sigma(..delta..+Delta-bar) is found to be 19.2 +- 3.7 mb and /sub N//sub A/ = sigma(..delta..+Delta-bar)/sigma/sub N//sub A/(n-barp) = 0.74 +- 0.15. Distributions in transverse momentum and rapidity of rho/sup 0/ and ..delta../sup + +/ resonances are obtained. It is shown that about 60% of the charged ..pi.. mesons in n-barp interactions at 6.1 GeV/c originate from the decay of the light resonances rho, ..omega.., f, ..delta.., Delta-bar. Our results are compared with p-barp data and with the predictions of quark-parton models.

Research Organization:
Institute of High Energy Physics, Serpukhov
OSTI ID:
7065116
Journal Information:
Sov. J. Nucl. Phys. (Engl. Transl.); (United States), Journal Name: Sov. J. Nucl. Phys. (Engl. Transl.); (United States) Vol. 47:3; ISSN SJNCA
Country of Publication:
United States
Language:
English

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Related Subjects

645103* -- High Energy Physics-- Particle Interactions & Properties-Experimental-- Strong Interactions & Baryon & Meson Properties
651220 -- Nuclear Properties & Reactions
A=1-5
Experimental
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
73 NUCLEAR PHYSICS AND RADIATION PHYSICS
ANTIDEUTERONS
ANTIMATTER
ANTINUCLEI
ANTIPARTICLES
BARYON-BARYON INTERACTIONS
BARYONS
BOSONS
CHARGED-PARTICLE REACTIONS
CROSS SECTIONS
DELTA BARYONS
DELTA-1232 BARYONS
DEUTERON REACTIONS
ELEMENTARY PARTICLES
ENERGY RANGE
F2-1270 MESONS
FERMIONS
G-PARITY INVARIANCE
GEV RANGE
GEV RANGE 01-10
HADRON-HADRON INTERACTIONS
HADRONS
HYDROGEN 1 TARGET
INCLUSIVE INTERACTIONS
INELASTIC SCATTERING
INTERACTIONS
INVARIANCE PRINCIPLES
MESONS
N BARYONS
NUCLEAR REACTIONS
NUCLEI
NUCLEON-ANTINUCLEON INTERACTIONS
PARTICLE INTERACTIONS
PROTON-ANTINEUTRON INTERACTIONS
RESONANCE SCATTERING
SCATTERING
TARGETS
TENSOR MESONS
TOTAL CROSS SECTIONS